MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 795b951e16aa4aa0557c24eedad4897e457864838393fcf66220da85ad8be9d8. 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: 16


Intelligence 16 IOCs YARA 10 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 795b951e16aa4aa0557c24eedad4897e457864838393fcf66220da85ad8be9d8
SHA3-384 hash: 92b9678a854c64fe8e18ff2cd13cc763f9f2d91fb847c381745d60ff07560818459f0ad2f0948a15fbb27ac2ed55ec0e
SHA1 hash: 3765af7a0198a9fbd715bae2db6cbbd3d0d55992
MD5 hash: 41a7d60bf27fb0f847aee929bad2e251
humanhash: zulu-bravo-saturn-artist
File name:41a7d60bf27fb0f847aee929bad2e251.exe
Download: download sample
Signature Smoke Loader
Create hunting rule
File size:483'840 bytes
First seen:2023-10-11 19:31:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep 12288:mtRavrD294wyaVoK1979nUKfE0ART+Dzi:qRNVyaVow59xD2
Threatray 3'265 similar samples on MalwareBazaar
TLSH T132A41216C5E88102D844037B74E8BE4537F9EA8AA6F11EB7B44DF409F1CA7C69DB094E
TrID 71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
10.2% (.EXE) Win64 Executable (generic) (10523/12/4)
6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.ICL) Windows Icons Library (generic) (2059/9)
Reporter abuse_ch
Tags:exe Smoke Loader

Intelligence

File Origin
# of uploads :
1
# of downloads :
292
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
smoke
Create hunting rule
ID:
1
File name:
41a7d60bf27fb0f847aee929bad2e251.exe
Verdict:
Malicious activity
Analysis date:
2023-10-11 19:58:41 UTC
Tags:
rhadamanthys stealer loader smoke
Link:
https://app.any.run/tasks/20ce6653-cf8b-4b3c-b5a7-544bde6a5237

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Rhadamanthys
Create hunting rule
Link:
https://www.capesandbox.com/analysis/453488/
Detection(s):
SecuriteInfo.com.Trojan.InjectNET.63.2510.27243.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Restart of the analyzed sample
Creating a file
Сreating synchronization primitives
Using the Windows Management Instrumentation requests
Launching a process
DNS request
Sending an HTTP GET request
Reading critical registry keys
Searching for the window
Creating a process from a recently created file
Unauthorized injection to a recently created process
Unauthorized injection to a system process
Stealing user critical data
Unauthorized injection to a recently created process by context flags manipulation
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/6526f834f776149b0b30dce4/reports/075e5d0d-f667-4bb5-9732-580ab804491f/overview
Verdict:
Malicious
Labled as:
Zusy.Generic
Link:
https://www.hybrid-analysis.com/sample/795b951e16aa4aa0557c24eedad4897e457864838393fcf66220da85ad8be9d8
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/b23b0533-4acf-4d5e-9787-e41db56dedfd
Result
Threat name:
DarkTortilla, Phobos, RHADAMANTHYS, Smok
Create hunting rule
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1324090
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Benign windows process drops PE files
C2 URLs / IPs found in malware configuration
Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation))
Checks if the current machine is a virtual machine (disk enumeration)
Creates a thread in another existing process (thread injection)
Deletes itself after installation
Found evasive API chain (may stop execution after checking locale)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Injects code into the Windows Explorer (explorer.exe)
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
Performs DNS queries to domains with low reputation
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 Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected Costura Assembly Loader
Yara detected DarkTortilla Crypter
Yara detected Phobos
Yara detected RHADAMANTHYS Stealer
Yara detected SmokeLoader
Yara detected SystemBC
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1324090 Sample: SyuiUx2mcV.exe Startdate: 11/10/2023 Architecture: WINDOWS Score: 100 83 xemtex534.xyz 2->83 85 www-env.dropbox-dns.com 2->85 87 6 other IPs or domains 2->87 99 Found malware configuration 2->99 101 Malicious sample detected (through community Yara rule) 2->101 103 Antivirus detection for URL or domain 2->103 105 13 other signatures 2->105 15 SyuiUx2mcV.exe 3 2->15         started        18 earatfw 2->18         started        signatures3 process4 signatures5 145 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 15->145 147 Injects a PE file into a foreign processes 15->147 20 SyuiUx2mcV.exe 1 15->20         started        149 Machine Learning detection for dropped file 18->149 23 earatfw 18->23         started        process6 dnsIp7 89 amxt25.xyz 45.131.66.61, 49701, 49708, 49709 LOVESERVERSGB Germany 20->89 26 certreq.exe 3 20->26         started        125 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 23->125 127 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 23->127 129 Maps a DLL or memory area into another process 23->129 131 2 other signatures 23->131 signatures8 process9 file10 71 C:\Users\user\AppData\Local\...\hop28jmRu.exe, PE32 26->71 dropped 73 C:\Users\user\AppData\Local\...\A3HdGfE9H.exe, PE32 26->73 dropped 133 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 26->133 135 Tries to steal Mail credentials (via file / registry access) 26->135 137 Tries to harvest and steal browser information (history, passwords, etc) 26->137 139 2 other signatures 26->139 30 A3HdGfE9H.exe 3 26->30         started        33 hop28jmRu.exe 3 26->33         started        35 conhost.exe 26->35         started        signatures11 process12 signatures13 141 Machine Learning detection for dropped file 30->141 37 A3HdGfE9H.exe 30->37         started        143 Antivirus detection for dropped file 33->143 40 hop28jmRu.exe 33->40         started        42 hop28jmRu.exe 33->42         started        44 hop28jmRu.exe 33->44         started        46 7 other processes 33->46 process14 signatures15 107 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 37->107 109 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 37->109 111 Maps a DLL or memory area into another process 37->111 113 2 other signatures 37->113 48 explorer.exe 12 8 37->48 injected process16 dnsIp17 77 servermlogs27.xyz 45.131.66.120, 49711, 49725, 49726 LOVESERVERSGB Germany 48->77 79 xemtex534.xyz 45.131.66.222, 49712, 80 LOVESERVERSGB Germany 48->79 81 4 other IPs or domains 48->81 65 C:\Users\user\AppData\Roaming\earatfw, PE32 48->65 dropped 67 C:\Users\user\AppData\Local\Temp\8BFF.exe, PE32 48->67 dropped 69 C:\Users\user\AppData\Local\Temp\85E3.exe, PE32 48->69 dropped 91 System process connects to network (likely due to code injection or exploit) 48->91 93 Benign windows process drops PE files 48->93 95 Injects code into the Windows Explorer (explorer.exe) 48->95 97 2 other signatures 48->97 53 8BFF.exe 48->53         started        56 85E3.exe 48->56         started        file18 signatures19 process20 signatures21 115 Antivirus detection for dropped file 53->115 117 Machine Learning detection for dropped file 53->117 119 Hides that the sample has been downloaded from the Internet (zone.identifier) 53->119 121 Injects a PE file into a foreign processes 53->121 123 Found evasive API chain (may stop execution after checking locale) 56->123 58 85E3.exe 56->58         started        process22 file23 75 C:\Users\user\AppData\Local\85E3.exe, PE32 58->75 dropped 61 85E3.exe 58->61         started        process24 process25 63 85E3.exe 61->63         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/795b951e16aa4aa0557c24eedad4897e457864838393fcf66220da85ad8be9d8/
Threat name:
Win32.Trojan.Zusy
Create hunting rule
Status:
Malicious
First seen:
2023-10-11 10:49:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
20 of 38 (52.63%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=pfnzkhqwvjfkavl4etxnvvejpzcxqzedqoj7z5tcednillml5hma._file
Verdict:
malicious
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Smoke Loader
+ 3'255 additional samples on MalwareBazaar
Result
Malware family:
smokeloader
Create hunting rule
Score:
  10/10
Tags:
family:phobos family:rhadamanthys family:smokeloader backdoor collection evasion persistence ransomware spyware stealer trojan
Link:
https://tria.ge/reports/231011-x8zn6aaf82/
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Interacts with shadow copies
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy service COM API
outlook_office_path
outlook_win_path
Drops file in Program Files directory
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Drops desktop.ini file(s)
Deletes itself
Drops startup file
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
Deletes backup catalog
Downloads MZ/PE file
Modifies Windows Firewall
Deletes shadow copies
Modifies boot configuration data using bcdedit
Renames multiple (60) files with added filename extension
Detect rhadamanthys stealer shellcode
Phobos
Rhadamanthys
SmokeLoader
Suspicious use of NtCreateUserProcessOtherParentProcess
Malware Config
C2 Extraction:
http://servermlogs27.xyz/statweb255/
http://servmblog45.xyz/statweb255/
http://demblog575.xyz/statweb255/
http://admlogs85x.xyz/statweb255/
http://blogmstat389.xyz/statweb255/
http://blogmstat255.xyz/statweb255/
Unpacked files
SH256 hash:
6fbc8462b5982ea64d5a60527825d721ea493ab03bcea28b7e8b6844cefb74fd
MD5 hash:
ae9bff48627dc0a77c70d4615c031aa5
SHA1 hash:
58836015a5f719862741ca7a2745d8438c288908
Detections:
RhadamanthysLoader
Create hunting rule
win_brute_ratel_c4_w0
Create hunting rule
Link:
https://www.unpac.me/results/531b3242-1fff-47b4-8e45-c028ebba23bf/
SH256 hash:
6542039992d904bde217ba83320d4547fbb7d877c5bfea919333fd9bc231add1
MD5 hash:
9951af3f75dd5b7c744ee1ed144bbed7
SHA1 hash:
cf9212adc5e8f3e3602b49d413a9c820350b4267
Link:
https://www.unpac.me/results/531b3242-1fff-47b4-8e45-c028ebba23bf/
SH256 hash:
d861387308f3515afcd640a922e5fc8cd6b15d54eeadb8fda762cc12022982d0
MD5 hash:
80b2977ae80c8effb5b5f87ac167a97d
SHA1 hash:
81ebcc180c4865f620ee2b04ed6730cc1e7ceee2
Link:
https://www.unpac.me/results/531b3242-1fff-47b4-8e45-c028ebba23bf/
SH256 hash:
19efdf03cb94895935225795f68bb9abfded1869687367013b8b4eee3cc99372
MD5 hash:
4e29f75c0c51b9dec76955f0382d9541
SHA1 hash:
4899aa8e3f57339cbaec8faab777897a76fe1c3a
Link:
https://www.unpac.me/results/531b3242-1fff-47b4-8e45-c028ebba23bf/
SH256 hash:
795b951e16aa4aa0557c24eedad4897e457864838393fcf66220da85ad8be9d8
MD5 hash:
41a7d60bf27fb0f847aee929bad2e251
SHA1 hash:
3765af7a0198a9fbd715bae2db6cbbd3d0d55992
Link:
https://www.unpac.me/results/531b3242-1fff-47b4-8e45-c028ebba23bf/
Malware family:
SmokeLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/795b951e16aa/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/795b951e16aa4aa0557c24eedad4897e457864838393fcf66220da85ad8be9d8

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:BruteSyscallHashes
Create hunting rule
Author:Embee_Research @ Huntress
Rule name:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:win_bruteratel_syscall_hashes_oct_2022
Create hunting rule
Author:Embee_Research @ Huntress
Description:Detection of Brute Ratel Badger via api hashes of Nt* functions.
Rule name:win_brute_ratel_c4_w0
Create hunting rule
Author:Embee_Research @ Huntress
Rule name:win_Brute_Syscall_Hashes
Create hunting rule
Author:Embee_Research @ Huntress
Description:Detection of Brute Ratel Badger via api hashes of Nt* functions.

File information

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

Web download

Smoke Loader

Executable exe 795b951e16aa4aa0557c24eedad4897e457864838393fcf66220da85ad8be9d8

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2703908/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/453488/

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