MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5f4426ef4ff23950b7ca635f689c0e2274a36ddb3233509e22e7a6b19d6719ae. 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



AgentTesla


Vendor detections: 12


Intelligence 12 IOCs YARA 2 File information Comments

SHA256 hash: 5f4426ef4ff23950b7ca635f689c0e2274a36ddb3233509e22e7a6b19d6719ae
SHA3-384 hash: 00c59407b86c9704d5266055e40dd27a115222acf914ababe73bb2c18cb19b9c675ba6c28fa86514fa9c7a37c7363771
SHA1 hash: 33a666dd9b6ee57bde594d3720adba26191ca9d5
MD5 hash: fc4f1b555ec348ccf814fedbf06a45cc
humanhash: apart-network-pennsylvania-november
File name:vbc.exe
Download: download sample
Signature AgentTesla
File size:1'002'496 bytes
First seen:2023-02-21 15:12:12 UTC
Last seen:2023-02-21 16:29:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'207 x SnakeKeylogger)
ssdeep 24576:lky9IIScJ+HliHVazSolP56TO5YnzVwS1Tr:aUHVaXRZ5+7
Threatray 1'055 similar samples on MalwareBazaar
TLSH T15825BE9977B45073F8CB01FE5C38278C2E207E577119E26A9B77BB9292709FB7294102
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)
File icon (PE):PE icon
dhash icon d6c3c1f98c8edef2 (12 x AgentTesla, 5 x SnakeKeylogger, 1 x RemcosRAT)
Reporter James_inthe_box
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
213
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
USX16,082.10XSwift.docx
Verdict:
Malicious activity
Analysis date:
2023-02-21 13:14:16 UTC
Tags:
trojan opendir exploit cve-2017-11882 loader

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
Launching a process
Creating a process with a hidden window
Verdict:
Malicious
Threat level:
  10/10
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:
AgentTesla, zgRAT
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Adds a directory exclusion to Windows Defender
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Sigma detected: Scheduled temp file as task from temp location
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)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected zgRAT
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 812708 Sample: vbc.exe Startdate: 21/02/2023 Architecture: WINDOWS Score: 100 64 Malicious sample detected (through community Yara rule) 2->64 66 Sigma detected: Scheduled temp file as task from temp location 2->66 68 Multi AV Scanner detection for submitted file 2->68 70 3 other signatures 2->70 7 vbc.exe 7 2->7         started        11 pfbsKVCKbOh.exe 5 2->11         started        13 gcWPrHZ.exe 5 2->13         started        15 gcWPrHZ.exe 2->15         started        process3 file4 50 C:\Users\user\AppData\...\pfbsKVCKbOh.exe, PE32 7->50 dropped 52 C:\Users\...\pfbsKVCKbOh.exe:Zone.Identifier, ASCII 7->52 dropped 54 C:\Users\user\AppData\Local\...\tmpE579.tmp, XML 7->54 dropped 56 C:\Users\user\AppData\Local\...\vbc.exe.log, ASCII 7->56 dropped 80 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 7->80 82 Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines) 7->82 84 Uses schtasks.exe or at.exe to add and modify task schedules 7->84 86 Adds a directory exclusion to Windows Defender 7->86 17 vbc.exe 2 5 7->17         started        22 powershell.exe 21 7->22         started        24 schtasks.exe 1 7->24         started        26 vbc.exe 7->26         started        88 Multi AV Scanner detection for dropped file 11->88 90 Machine Learning detection for dropped file 11->90 92 Injects a PE file into a foreign processes 11->92 28 pfbsKVCKbOh.exe 11->28         started        36 2 other processes 11->36 30 gcWPrHZ.exe 13->30         started        32 schtasks.exe 13->32         started        34 gcWPrHZ.exe 13->34         started        signatures5 process6 dnsIp7 58 us2.smtp.mailhostbox.com 208.91.199.224, 49698, 49701, 587 PUBLIC-DOMAIN-REGISTRYUS United States 17->58 46 C:\Users\user\AppData\Roaming\...\gcWPrHZ.exe, PE32 17->46 dropped 48 C:\Users\user\...\gcWPrHZ.exe:Zone.Identifier, ASCII 17->48 dropped 72 Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc) 17->72 74 Tries to steal Mail credentials (via file / registry access) 17->74 76 Hides that the sample has been downloaded from the Internet (zone.identifier) 17->76 38 conhost.exe 22->38         started        40 conhost.exe 24->40         started        78 Tries to harvest and steal browser information (history, passwords, etc) 28->78 60 208.91.198.143, 49699, 587 PUBLIC-DOMAIN-REGISTRYUS United States 30->60 62 192.168.2.1 unknown unknown 30->62 42 conhost.exe 32->42         started        44 conhost.exe 36->44         started        file8 signatures9 process10
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-02-21 13:49:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
13
AV detection:
19 of 23 (82.61%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Checks computer location settings
Uses the VBS compiler for execution
Unpacked files
SH256 hash:
a3a9d014837e8dd58eec3f425177654796afb19265454244f32709bfc2d03fc9
MD5 hash:
05546fc3326dba2c4eec3e0ca2e7d766
SHA1 hash:
bb1877662396819ace009803178497464bc22e71
SH256 hash:
2072ae5037650013b1977df74458aa457f5d66eb79c995d2fe5112e2277e9069
MD5 hash:
b99c9f636f9d92a40018b29e73a056aa
SHA1 hash:
a6566cf0141e041717d78dd64e8c266e1d9270b6
SH256 hash:
f11ca8a4ea5b7a7c2b982020fec273ab6246b75ad4c9e45fbd475eb0a1350c17
MD5 hash:
2a0a9f880a5fc4e16971fc0752b0854c
SHA1 hash:
84952dbf095679f3d5da366c6ef99f13136bb4c5
SH256 hash:
bd67fb6ce9e5e3a1a0919f3327648b0cc94a32890bf2cd29eea05e62c9fa1e19
MD5 hash:
619fd810ec051bbac2f7da259fec7a61
SHA1 hash:
2fab2daa79e378331ec0068f9f826b9fd7ad3d5a
SH256 hash:
e386840537170219177c2bb3404f4c7bd9da1a2d53cdf2ae1e857c3b19628a29
MD5 hash:
d170ab8c03b9c37d5be449454db131d2
SHA1 hash:
2031b6754a65d21b47dd11a34fee86f048d6048d
SH256 hash:
5f4426ef4ff23950b7ca635f689c0e2274a36ddb3233509e22e7a6b19d6719ae
MD5 hash:
fc4f1b555ec348ccf814fedbf06a45cc
SHA1 hash:
33a666dd9b6ee57bde594d3720adba26191ca9d5
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.

  
Delivery method
Other

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