MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bba099a7d260b2f39a2e84ffbabfc021d1ffaa1c13f38fc5c6c72b27bc476515. 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 2 File information Comments

SHA256 hash: bba099a7d260b2f39a2e84ffbabfc021d1ffaa1c13f38fc5c6c72b27bc476515
SHA3-384 hash: fff4ea4099dfccdf2c5b018c54d39dd0023775af67eaf3011af96326da9f40160ab24be89b41e5264e0de5386286c923
SHA1 hash: a42407109009e07fc2e6a56b529f6a0fb070de0f
MD5 hash: 36cf36a3c8fa1e1a5233ffdf9330ddd8
humanhash: summer-comet-delta-massachusetts
File name:file
Download: download sample
Signature Smoke Loader
File size:297'472 bytes
First seen:2023-11-01 10:51:56 UTC
Last seen:2023-11-02 00:41:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:/9Y90LApw57eljENjT3NjDdYZTYkRgoq80msoqGLIf6Af1lc+:/O908AwjEDj+TYkL0roqmIf9
Threatray 2 similar samples on MalwareBazaar
TLSH T190540114A1F07B15DCE98BF09CB183A51372341B3425E75DDCC9E4C93046BE98BD9A9B
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 andretavare5
Tags:exe Smoke Loader


Avatar
andretavare5
Sample downloaded from http://171.22.28.221/files/Random.exe

Intelligence


File Origin
# of uploads :
18
# of downloads :
364
Origin country :
US US
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-11-01 11:36:09 UTC
Tags:
loader privateloader evasion opendir smoke stealer redline risepro stealc ransomware stop autoit sinkhole miner lumma

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Сreating synchronization primitives
Creating a process with a hidden window
Launching a process
Creating a file
DNS request
Connecting to a non-recommended domain
Sending an HTTP GET request
Creating a process from a recently created file
Creating a file in the %temp% directory
Searching for synchronization primitives
Blocking the User Account Control
Query of malicious DNS domain
Sending a TCP request to an infection source
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Adding exclusions to Windows Defender
Adding an exclusion to Microsoft Defender
Unauthorized injection to a system process
Enabling autorun by creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
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.
Result
Threat name:
Djvu, SmokeLoader
Detection:
malicious
Classification:
rans.troj.expl.evad
Score:
100 / 100
Signature
.NET source code contains process injector
.NET source code references suspicious native API functions
Adds a directory exclusion to Windows Defender
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)
Contains functionality to inject code into remote processes
Creates a thread in another existing process (thread injection)
Creates HTML files with .exe extension (expired dropper behavior)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Disables UAC (registry)
Drops script or batch files to the startup folder
Found evasive API chain checking for user administrative privileges
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
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 domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sample uses process hollowing technique
Sigma detected: Drops script at startup location
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)
Writes many files with high entropy
Yara detected Djvu Ransomware
Yara detected Generic Downloader
Yara detected SmokeLoader
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1335400 Sample: file.exe Startdate: 01/11/2023 Architecture: WINDOWS Score: 100 190 Multi AV Scanner detection for domain / URL 2->190 192 Found malware configuration 2->192 194 Malicious sample detected (through community Yara rule) 2->194 196 13 other signatures 2->196 12 file.exe 2 4 2->12         started        15 ejdubid 2->15         started        17 svchost.exe 1 1 2->17         started        20 cmd.exe 2->20         started        process3 dnsIp4 226 Adds a directory exclusion to Windows Defender 12->226 228 Disables UAC (registry) 12->228 22 CasPol.exe 15 209 12->22         started        27 powershell.exe 23 12->27         started        230 Multi AV Scanner detection for dropped file 15->230 232 Detected unpacking (changes PE section rights) 15->232 234 Injects a PE file into a foreign processes 15->234 29 ejdubid 15->29         started        138 23.62.164.112 GTT-BACKBONEGTTDE United States 17->138 140 127.0.0.1 unknown unknown 17->140 31 conhost.exe 20->31         started        signatures5 process6 dnsIp7 152 95.214.26.28 CMCSUS Germany 22->152 154 85.217.144.143 WS171-ASRU Bulgaria 22->154 156 11 other IPs or domains 22->156 128 C:\Users\...\yp5QVnEIsv8hU68ZE80kGcoY.exe, PE32 22->128 dropped 130 C:\Users\...\yVX1ZlyDEQwJlYBqMAJVtqzf.exe, PE32 22->130 dropped 132 C:\Users\...\vqi4pENR4cOUZuOHh9aQf9rB.exe, PE32 22->132 dropped 134 158 other malicious files 22->134 dropped 212 Drops script or batch files to the startup folder 22->212 214 Creates HTML files with .exe extension (expired dropper behavior) 22->214 216 Writes many files with high entropy 22->216 33 7L3DbTVkWPC2xCRyLsQbai8F.exe 22->33         started        36 uw9Tj1Uilo9r1DiGcQkvS6O1.exe 22->36         started        40 nmEy2Eji0r3SS8l0N0P2U8MF.exe 22->40         started        44 7 other processes 22->44 42 conhost.exe 27->42         started        file8 signatures9 process10 dnsIp11 176 Multi AV Scanner detection for dropped file 33->176 178 Detected unpacking (changes PE section rights) 33->178 180 Contains functionality to inject code into remote processes 33->180 46 7L3DbTVkWPC2xCRyLsQbai8F.exe 33->46         started        146 107.167.110.217 OPERASOFTWAREUS United States 36->146 148 107.167.125.189 OPERASOFTWAREUS United States 36->148 150 2 other IPs or domains 36->150 118 Opera_installer_2311011053459387716.dll, PE32 36->118 dropped 120 C:\Users\...\uw9Tj1Uilo9r1DiGcQkvS6O1.exe, PE32 36->120 dropped 122 C:\Users\user\AppData\Local\...\opera_package, PE32 36->122 dropped 124 Opera_104.0.4944.3...toupdate_x64[1].exe, PE32 36->124 dropped 182 Writes many files with high entropy 36->182 184 Found evasive API chain checking for user administrative privileges 36->184 49 uw9Tj1Uilo9r1DiGcQkvS6O1.exe 36->49         started        52 uw9Tj1Uilo9r1DiGcQkvS6O1.exe 36->52         started        54 uw9Tj1Uilo9r1DiGcQkvS6O1.exe 36->54         started        56 Conhost.exe 36->56         started        186 Injects a PE file into a foreign processes 40->186 58 nmEy2Eji0r3SS8l0N0P2U8MF.exe 40->58         started        126 C:\Users\user\AppData\Local\Temp\Broom.exe, PE32 44->126 dropped 188 Sample uses process hollowing technique 44->188 60 Broom.exe 44->60         started        62 Broom.exe 44->62         started        64 4 other processes 44->64 file12 signatures13 process14 file15 236 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 46->236 238 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 46->238 240 Maps a DLL or memory area into another process 46->240 244 2 other signatures 46->244 66 explorer.exe 46->66 injected 104 Opera_installer_2311011053469556308.dll, PE32 49->104 dropped 106 Opera_installer_2311011053479737296.dll, PE32 52->106 dropped 108 Opera_installer_2311011053495757908.dll, PE32 54->108 dropped 242 Multi AV Scanner detection for dropped file 60->242 signatures16 process17 dnsIp18 142 103.152.79.123 TWIDC-AS-APTWIDCLimitedHK unknown 66->142 144 196.188.169.138 EthioNet-ASET Ethiopia 66->144 110 C:\Users\user\AppData\Roaming\ejdubid, PE32 66->110 dropped 112 C:\Users\user\AppData\Local\Temp\7D5A.exe, PE32 66->112 dropped 114 C:\Users\user\AppData\Local\Temp\5379.exe, PE32 66->114 dropped 116 C:\Users\user\AppData\Local\Temp\4A31.exe, PE32 66->116 dropped 206 System process connects to network (likely due to code injection or exploit) 66->206 208 Benign windows process drops PE files 66->208 210 Hides that the sample has been downloaded from the Internet (zone.identifier) 66->210 71 cmd.exe 66->71         started        73 5379.exe 66->73         started        76 4A31.exe 66->76         started        78 4 other processes 66->78 file19 signatures20 process21 signatures22 80 I3fR1ZdjhTM2hkjAzgq3k3BC.exe 71->80         started        83 conhost.exe 71->83         started        218 Multi AV Scanner detection for dropped file 73->218 220 Detected unpacking (changes PE section rights) 73->220 222 Injects a PE file into a foreign processes 73->222 85 5379.exe 73->85         started        224 Detected unpacking (overwrites its own PE header) 76->224 87 4A31.exe 76->87         started        91 conhost.exe 78->91         started        93 conhost.exe 78->93         started        95 conhost.exe 78->95         started        97 2 other processes 78->97 process23 dnsIp24 160 Antivirus detection for dropped file 80->160 162 Multi AV Scanner detection for dropped file 80->162 164 Detected unpacking (changes PE section rights) 80->164 172 2 other signatures 80->172 99 I3fR1ZdjhTM2hkjAzgq3k3BC.exe 80->99         started        166 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 85->166 168 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 85->168 170 Maps a DLL or memory area into another process 85->170 174 2 other signatures 85->174 158 172.67.139.220 CLOUDFLARENETUS United States 87->158 136 C:\Users\user\AppData\Local\...\4A31.exe, PE32 87->136 dropped 102 icacls.exe 87->102         started        file25 signatures26 process27 signatures28 198 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 99->198 200 Checks for kernel code integrity (NtQuerySystemInformation(CodeIntegrityInformation)) 99->200 202 Maps a DLL or memory area into another process 99->202 204 2 other signatures 99->204
Threat name:
ByteCode-MSIL.Trojan.Privateloader
Status:
Malicious
First seen:
2023-11-01 10:52:05 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:dcrat family:glupteba family:privateloader family:smokeloader family:zgrat botnet:pub1 backdoor discovery dropper evasion infostealer loader persistence rat rootkit spyware stealer trojan upx
Behaviour
Checks SCSI registry key(s)
Creates scheduled task(s)
Modifies data under HKEY_USERS
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: LoadsDriver
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
System policy modification
Uses Task Scheduler COM API
Enumerates physical storage devices
Program crash
Checks for VirtualBox DLLs, possible anti-VM trick
Drops file in Windows directory
Launches sc.exe
Drops file in System32 directory
Suspicious use of SetThreadContext
Adds Run key to start application
Checks installed software on the system
Checks whether UAC is enabled
Enumerates connected drives
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Manipulates WinMon driver.
Manipulates WinMonFS driver.
Checks computer location settings
Drops startup file
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
UPX packed file
Windows security modification
Downloads MZ/PE file
Drops file in Drivers directory
Modifies Windows Firewall
Possible attempt to disable PatchGuard
Modifies boot configuration data using bcdedit
DcRat
Detect ZGRat V1
Glupteba
Glupteba payload
PrivateLoader
SmokeLoader
UAC bypass
Windows security bypass
ZGRat
Malware Config
C2 Extraction:
http://host-file-host6.com/
http://host-host-file8.com/
Unpacked files
SH256 hash:
bba099a7d260b2f39a2e84ffbabfc021d1ffaa1c13f38fc5c6c72b27bc476515
MD5 hash:
36cf36a3c8fa1e1a5233ffdf9330ddd8
SHA1 hash:
a42407109009e07fc2e6a56b529f6a0fb070de0f
Malware family:
SmokeLoader
Verdict:
Malicious
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:pe_imphash
Rule name:Skystars_Malware_Imphash
Author:Skystars LightDefender
Description:imphash

File information


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

  
Dropped by
PrivateLoader
  
Delivery method
Distributed via drive-by

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