MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f42503b4678644e3475344042dafa742e5f3d2d75a7c16409f10d7bcca17e028. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Smoke Loader


Vendor detections: 15


Intelligence 15 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f42503b4678644e3475344042dafa742e5f3d2d75a7c16409f10d7bcca17e028
SHA3-384 hash: 03a1f617d4591594a36e83b03e08953d539ff561ce441d75d4c67d2d2b5ced35f0762e61899928482e538fcdb285ab2b
SHA1 hash: 0a16526e664ebcfadb6b958580aa12b3deff8645
MD5 hash: 779806a66cccb6b37a02f6b30f7aecf3
humanhash: cardinal-diet-india-washington
File name:7Y18r(14).exe
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:186'368 bytes
First seen:2024-07-24 17:40:48 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 61aeaa8ec5698536c7a8f0b1ac00ff47 (2 x Smoke Loader, 1 x Tofsee)
ssdeep 3072:xAL4MQSsrTe/6ocp7B8WvYmD/5yW5VXU/2PE9wXGCH:eL4KspNjVhPS
Threatray 2'448 similar samples on MalwareBazaar
TLSH T180046A2136F58336F3F39A746976A3A04B3BB8737970C1AE2250261B1DB27C19D96713
TrID 41.1% (.CPL) Windows Control Panel Item (generic) (57583/11/19)
22.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
11.8% (.EXE) Microsoft Visual C++ compiled executable (generic) (16529/12/5)
7.5% (.EXE) Win64 Executable (generic) (10523/12/4)
4.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
File icon (PE):PE icon
dhash icon 9671e896ccd0d4cc (9 x Smoke Loader, 3 x Stealc, 2 x Tofsee)
Reporter Anonymous
Tags:exe Smoke Loader


Avatar
Anonymous
this malware sample is very nasty!

Intelligence

File Origin
# of uploads :
1
# of downloads :
237
Origin country :
CN CN
Vendor Threat Intelligence
Detection(s):
PUA.Win.Packer.Asprotect-3
Create hunting rule

Win.Virus.Wapomi-9802127-0
Create hunting rule

Win.Malware.Wapomi-10020301-0
Create hunting rule

Win.Trojan.Fareit-10033064-0
Create hunting rule

Win.Packed.Smokeloader-10033583-0
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=66a13cc8cb3d02fa0e4949c8
Tags:
Execution Generic Network Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a process from a recently created file
Changing an executable file
Creating a window
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Modifying an executable file
Query of malicious DNS domain
Infecting executable files
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint lolbin microsoft_visual_cc packed shell32
Link:
https://www.filescan.io/uploads/66a13d429149fd55f98ffdc6/reports/bc6f2703-6336-4979-a450-c306bd870b7f/overview
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Generic Malware
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/c8e727cb-68cd-4539-be77-1985b915e4fd
Result
Threat name:
LummaC, AsyncRAT, Bdaejec, Go Injector, , SmokeLoader
Create hunting rule
Detection:
malicious
Classification:
spre.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1480462
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
AI detected suspicious sample
Allocates memory in foreign processes
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Benign windows process drops PE files
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Changes memory attributes in foreign processes to executable or writable
Check for Windows Defender sandbox
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Checks if the current machine is a virtual machine (disk enumeration)
Connects to a pastebin service (likely for C&C)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
Creates a thread in another existing process (thread injection)
Creates autostart registry keys with suspicious names
Deletes itself after installation
Detected unpacking (changes PE section rights)
Drops VBS files to the startup folder
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Found suspicious ZIP file
Hides that the sample has been downloaded from the Internet (zone.identifier)
Infects executable files (exe, dll, sys, html)
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
Loading BitLocker PowerShell Module
LummaC encrypted strings found
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
PE file has a writeable .text section
Powershell drops PE file
Queries memory information (via WMI often done to detect virtual machines)
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Query firmware table information (likely to detect VMs)
Reads the Security eventlog
Reads the System eventlog
Sample uses string decryption to hide its real strings
Sigma detected: Drops script at startup location
Sigma detected: New RUN Key Pointing to Suspicious Folder
Sigma detected: Powerup Write Hijack DLL
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Suspicious powershell command line found
Switches to a custom stack to bypass stack traces
System process connects to network (likely due to code injection or exploit)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Crypto Currency Wallets
Uses known network protocols on non-standard ports
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Yara detected AsyncRAT
Yara detected Bdaejec
Yara detected Go Injector
Yara detected LummaC Stealer
Yara detected SmokeLoader
Yara detected VenomRAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1480462 Sample: 7Y18r(14).exe Startdate: 24/07/2024 Architecture: WINDOWS Score: 100 105 rentry.co 2->105 107 mussangroup.com 2->107 109 8 other IPs or domains 2->109 131 Found malware configuration 2->131 133 Malicious sample detected (through community Yara rule) 2->133 135 Antivirus detection for URL or domain 2->135 139 27 other signatures 2->139 12 7Y18r(14).exe 1 2->12         started        16 ftejced 2->16         started        signatures3 137 Connects to a pastebin service (likely for C&C) 105->137 process4 file5 101 C:\Users\user\AppData\Local\Temp\IXDaI.exe, PE32 12->101 dropped 181 Detected unpacking (changes PE section rights) 12->181 183 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 12->183 185 Maps a DLL or memory area into another process 12->185 187 Switches to a custom stack to bypass stack traces 12->187 18 explorer.exe 122 21 12->18 injected 23 IXDaI.exe 14 12->23         started        189 Multi AV Scanner detection for dropped file 16->189 191 Checks if the current machine is a virtual machine (disk enumeration) 16->191 193 Creates a thread in another existing process (thread injection) 16->193 25 IXDaI.exe 16->25         started        signatures6 process7 dnsIp8 111 mussangroup.com 185.149.100.242, 443, 49737 VERIDYENVeridyenBilisimTeknolojileriSanayiveTicaretLi Turkey 18->111 113 gebeus.ru 189.165.133.52, 49717, 49718, 49719 UninetSAdeCVMX Mexico 18->113 117 8 other IPs or domains 18->117 79 C:\Users\user\AppData\Roaming\ftejced, PE32 18->79 dropped 81 C:\Users\user\AppData\Local\Temp\F6D9.exe, PE32+ 18->81 dropped 83 C:\Users\user\AppData\Local\Temp\B552.exe, PE32+ 18->83 dropped 91 2 other malicious files 18->91 dropped 141 System process connects to network (likely due to code injection or exploit) 18->141 143 Benign windows process drops PE files 18->143 145 Queries sensitive physical memory information (via WMI, Win32_PhysicalMemory, often done to detect virtual machines) 18->145 153 5 other signatures 18->153 27 753F.exe 18->27         started        32 B552.exe 18->32         started        34 F6D9.exe 18->34         started        40 2 other processes 18->40 115 ddos.dnsnb8.net 44.221.84.105, 49703, 49711, 49712 AMAZON-AESUS United States 23->115 85 C:\Program Files\7-Zip\Uninstall.exe, PE32 23->85 dropped 87 C:\Program Files (x86)\AutoIt3\...\SciTE.exe, PE32 23->87 dropped 89 C:\Program Files (x86)\AutoIt3\...\MyProg.exe, MS-DOS 23->89 dropped 147 Antivirus detection for dropped file 23->147 149 Multi AV Scanner detection for dropped file 23->149 151 Detected unpacking (changes PE section rights) 23->151 155 2 other signatures 23->155 36 WerFault.exe 19 16 23->36         started        38 cmd.exe 25->38         started        file9 signatures10 process11 dnsIp12 129 rentry.co 104.26.3.16, 443, 49759 CLOUDFLARENETUS United States 27->129 103 C:\Users\user\AppData\...\rentry-script.ps1, ASCII 27->103 dropped 195 Suspicious powershell command line found 27->195 197 Found many strings related to Crypto-Wallets (likely being stolen) 27->197 199 Bypasses PowerShell execution policy 27->199 217 3 other signatures 27->217 42 powershell.exe 27->42         started        47 753F.exe 27->47         started        201 Multi AV Scanner detection for dropped file 32->201 203 Writes to foreign memory regions 32->203 205 Allocates memory in foreign processes 32->205 219 2 other signatures 32->219 49 BitLockerToGo.exe 32->49         started        207 Check for Windows Defender sandbox 34->207 209 Machine Learning detection for dropped file 34->209 211 Changes memory attributes in foreign processes to executable or writable 34->211 213 Injects code into the Windows Explorer (explorer.exe) 34->213 51 conhost.exe 34->51         started        53 conhost.exe 38->53         started        215 Windows Scripting host queries suspicious COM object (likely to drop second stage) 40->215 55 cmd.exe 40->55         started        57 conhost.exe 40->57         started        file13 signatures14 process15 dnsIp16 125 store4.gofile.io 31.14.70.245, 443, 49763, 49770 LINKER-ASFR Virgin Islands (BRITISH) 42->125 93 C:\Users\user\AppData\Local\Temp\...\vm.exe, PE32 42->93 dropped 95 C:\Users\user\AppData\Local\Temp\...\g2m.dll, PE32 42->95 dropped 97 C:\Users\user\AppData\Local\Temp\...\lm.exe, PE32 42->97 dropped 99 3 other malicious files 42->99 dropped 167 Drops VBS files to the startup folder 42->167 169 Loading BitLocker PowerShell Module 42->169 171 Powershell drops PE file 42->171 59 cmd.exe 42->59         started        61 cmd.exe 42->61         started        63 conhost.exe 42->63         started        127 callosallsaospz.shop 188.114.96.3, 443, 49754, 49756 CLOUDFLARENETUS European Union 49->127 173 Query firmware table information (likely to detect VMs) 49->173 175 Found many strings related to Crypto-Wallets (likely being stolen) 49->175 177 Tries to harvest and steal ftp login credentials 49->177 179 Tries to steal Crypto Currency Wallets 49->179 65 vm.exe 55->65         started        67 conhost.exe 55->67         started        file17 signatures18 process19 process20 69 lm.exe 59->69         started        73 vm.exe 61->73         started        75 WerFault.exe 65->75         started        dnsIp21 119 liernessfornicsa.shop 172.67.213.85, 443, 49780, 49782 CLOUDFLARENETUS United States 69->119 157 Query firmware table information (likely to detect VMs) 69->157 159 Tries to harvest and steal browser information (history, passwords, etc) 69->159 161 Tries to steal Crypto Currency Wallets 69->161 77 WerFault.exe 69->77         started        121 193.222.96.24, 4449, 49784, 49807 SWISSCOMSwisscomSwitzerlandLtdCH Germany 73->121 123 94.156.79.190, 4449, 49821 NET1-ASBG Bulgaria 73->123 163 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 73->163 165 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 73->165 signatures22 process23
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f42503b4678644e3475344042dafa742e5f3d2d75a7c16409f10d7bcca17e028
Detection:
smokeloader
Create hunting rule
Link:
https://mwdb.cert.pl/sample/f42503b4678644e3475344042dafa742e5f3d2d75a7c16409f10d7bcca17e028/
Threat name:
Win32.Virus.Jadtre
Create hunting rule
Status:
Malicious
First seen:
2024-07-24 17:41:15 UTC
File Type:
PE (Exe)
Extracted files:
20
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6qsqhndhqzcogr2tiqcc3l5hils7huwxlj6bmqe7cdl3zsqx4aua._file
Verdict:
malicious
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e629fcf41de2187cafd4c8c38b1e9408a5c521d29459971bb96fae5da26fa9d5
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f42503b4678644e3475344042dafa742e5f3d2d75a7c16409f10d7bcca17e028
Smoke Loader
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f662b3ef913a9bfb62cb970e6f8f8e81ad75b21deaccffc01cbc1390f34e776e
Smoke Loader
+ 2'438 additional samples on MalwareBazaar
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:smokeloader botnet:pub1 aspackv2 backdoor discovery trojan
Link:
https://tria.ge/reports/240724-v9gtmasbqc/
Behaviour
Checks SCSI registry key(s)
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Drops file in Program Files directory
ASPack v2.12-2.42
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
SmokeLoader
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/11a9c98e-63ea-4f2b-be3b-479766a35a3f
Unpacked files
SH256 hash:
a2a36aa824eb663bbe7478f50d432d2efd2006472cdfe8842bd83e4ca4f04666
MD5 hash:
1248480e0503c6749983403134d42b7d
SHA1 hash:
2b47694311b48245f2883cd50b955b6f38f3a3b2
Detections:
SmokeLoaderStage2
Create hunting rule
win_smokeloader_a2
Create hunting rule
Link:
https://www.unpac.me/results/cf29b3d8-aa55-406c-81ad-0b74cb8e0797/
Parent samples :
ea3ee2e3e5558a8267f3f5093144debf3263b5d3dea1598fa59ef7bde043c2b9
37e6e5d8b399fefb9ae774516ff6367e800c69a272e18a654bb84ccff2d7c67a
dd6f8daddb7da0e8b9be526fc3aa9c5f0808fe6926ca7a9648464f9b4f8140e1
55f04c9f83b628e58e28a63ce9089519c7457ef52b9bb4504f73a5c97cad26ca
a6c2a7ffb68b797967ad979e51a1330e9f16223e4f5dc8500b0a58741176f83c
487d893f6d85731ec5e27e65c863163de9cb7bf8c2f0f18118caa6449c96c922
e33636849f3662796f4ce6584c06729eb6e1df305c700a8a12890c831488c533
9b5bb6664b66132e313e9f3e6bf35452008d2e47a91913918a633b348133b617
b87126fd409621a4d510dda005cd84e254d491274661cf22238b271412ff860b
9d7926dac81c4f7200c84298c7839162a2996339262f58bd815d2a94c380a151
ae3d2033118b60d6112bf68e9a241d04f80be85f6d329cd397cb16e855e2bc84
77ba6812b4e9223398d31476512a19ce12c60cf8c9d139e4578f3f19563e0d52
f40c3883f19dda754f0d00ab1e51d8d691c680490ea4040f6a03ac0337ba2584
dfb24443852647217f54bc9078e59394e1c81109c9c57678b5aa535b4133a372
1b5fbf0fffc028708def7f8b1510dd668da7abbd0d0f63b597669339005e33e0
7b2ece053ca47f1dfc2199e5872a4a273ccac740a0ceef209fa8d7867e6cf646
0fa34507e4989e8a96cea715d3418f343bc35cbb256d63da1a87ea82de59c350
a93a0b125c19135c7a7def5d8fe1219885e61a45f0b962103e726086179b35b8
4494ba81137d4fbad06b191f392cfbb90d31870a7584cd8dc2d8358d1a1bad84
4dd0a176ce6a71fe7680c2d0454874564c8d8fdd9edb330c473fb56aa2275507
8319ac8978ed747e7b39e3fe0210a7b49df634217a38fba56c0e65743d634622
8c134f0fdc3cf972dc7846cd39d8caa3ca20fb874ea8583221cf868eb08ffa99
0811449e8fe78213f52e656b7e2a926a0da64ad149a3e522aea10487c087ceb8
8fd4c66e2864ac0827a57b3fdb27a2a1adb28228969134bb1dd9971b07c7144f
f9e6524d84ac9ee9bae375246118dd5123a1d144a7a64d79f39be958ffd0a126
2f0677f3129fefcd9c91182e9b494868110d34da56055a98ab1264fb8f18a8ef
7e0623dbd4975ddc7790c45c9407527c048cb04727ddf757e70f7d5b702703fd
154aad6fa244bbbf1b7d740a3553c66d2bc10735a18641abeda60162fc1fcdc0
7c7cded8d1c0784881859ed03340d81c24ea9bf5d9972963cedf0e40b9856a0c
408e6e127e24828a7fd237ffa2e6bdf031847ff3a28bf4c6ed89a6c1fd7cfc7c
76468a50f8db3f099c2f6a0601ad5b4a2606568c83332a5dc0875428dc18c6d3
1925ddf975a0dd86f3b2cade044a1391420fd1be19a43a4d75c75d55aef7e495
d0a5a89efc24b65fc97c0bb78051d46c04c8470d295e6d8eeecbf61e520e197e
f51b97f6816ab443b5652bf340c562927152b27da26a08a04b4b79f7cebd655e
3cc5509318b88990ff3c137b65e94cfe0cc6759a16180c849584b0345b345ef1
f42503b4678644e3475344042dafa742e5f3d2d75a7c16409f10d7bcca17e028
1c4856a56c6b9b168d73deb0fcc740215455041edcf96f90d48d2f31726f7269
SH256 hash:
be7c525446efada70f03c68fb021f5e0446b07050ae75643c5740c6e738a109d
MD5 hash:
8540a97fbf98d063241a940a2b9688a0
SHA1 hash:
be40b520e56fc0d3b2abb139e94f761255320717
Detections:
win_unidentified_045_auto
Create hunting rule
win_unidentified_045_g0
Create hunting rule
Link:
https://www.unpac.me/results/cf29b3d8-aa55-406c-81ad-0b74cb8e0797/
SH256 hash:
f42503b4678644e3475344042dafa742e5f3d2d75a7c16409f10d7bcca17e028
MD5 hash:
779806a66cccb6b37a02f6b30f7aecf3
SHA1 hash:
0a16526e664ebcfadb6b958580aa12b3deff8645
Link:
https://www.unpac.me/results/cf29b3d8-aa55-406c-81ad-0b74cb8e0797/
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:maldoc_getEIP_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

Smoke Loader

Executable exe f42503b4678644e3475344042dafa742e5f3d2d75a7c16409f10d7bcca17e028

(this sample)

  
Link
https://bbs.kafan.cn/forum-31-1.html
  
Delivery method
Distributed via e-mail attachment

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::FindFirstVolumeW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetStartupInfoA
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetConsoleTitleA
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasesLengthW
KERNEL32.dll::GetConsoleAliasesA
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA
KERNEL32.dll::SetVolumeMountPointA
WIN_HTTP_APIUses HTTP servicesWINHTTP.dll::WinHttpAddRequestHeaders

Comments