MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 311c4ba127168d811f31c87eb57305df2d67e615e60d81a3b22d945170c4bffb. 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 3 File information Comments

SHA256 hash: 311c4ba127168d811f31c87eb57305df2d67e615e60d81a3b22d945170c4bffb
SHA3-384 hash: ceb07e44cb3acf10eba7ce76e977e28239aa7ba03d67a8342d9fdd4820eaca6cab698eddacea763eb6e8a7867d4e9064
SHA1 hash: 0f398893eefbe108397f118fd6723f5e00dfcc29
MD5 hash: efa87b60051cd3dcac5d791bce173f67
humanhash: wyoming-mars-kentucky-oxygen
File name:#RFQ Kramp10062021.exe
Download: download sample
Signature AgentTesla
File size:449'024 bytes
First seen:2021-10-07 09:50:42 UTC
Last seen:2021-10-07 13:20:25 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 12288:wbkoD11P5mW/EYKnNfQ9jFKBd0lpIKXKjMdU:okQP5L8rntmFKL0l9NU
Threatray 10'968 similar samples on MalwareBazaar
TLSH T159A402A8133B9608CD7C43F53524ABA16774A119255ED3781AE4F0BD3EB3BB94AE0097
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
2
# of downloads :
177
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
#RFQ Kramp10062021.exe
Verdict:
Malicious activity
Analysis date:
2021-10-07 09:55:57 UTC
Tags:
n/a

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

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Adds a directory exclusion to Windows Defender
Found malware configuration
Injects a PE file into a foreign processes
Moves itself to temp directory
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)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Powershell Defender Exclusion
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file access)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-10-07 09:51:16 UTC
AV detection:
11 of 45 (24.44%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla evasion keylogger spyware stealer trojan
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Maps connected drives based on registry
Checks BIOS information in registry
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Looks for VMWare Tools registry key
AgentTesla Payload
Looks for VirtualBox Guest Additions in registry
AgentTesla
Unpacked files
SH256 hash:
60c390b5b59b35c277bd063a917c1224ed8229624f6c2d0957894b24bde47844
MD5 hash:
7b9b01e0ff7949ed67a308fa68f3e86f
SHA1 hash:
98a36f83b82256b1c5f9f33f731ff7d4f15d254e
SH256 hash:
88fff7689b1b6c0f5552d35a114926fd04c552148a5bf49956648dcba8fec44a
MD5 hash:
eb82e7bf99c27d706a1edbc25487d292
SHA1 hash:
6a9be31330bc9bb3d24e89b2e0c818019391ca4e
SH256 hash:
fe8637d821a39a8b74abce7e043007d38cb9c5cfcb7098af9846cfd98185ac03
MD5 hash:
c380b6831f456ac5cac08c78c0e4dada
SHA1 hash:
3e241a0b9d96c1dfbadd7ee1a8c5ee6d74eba11c
SH256 hash:
311c4ba127168d811f31c87eb57305df2d67e615e60d81a3b22d945170c4bffb
MD5 hash:
efa87b60051cd3dcac5d791bce173f67
SHA1 hash:
0f398893eefbe108397f118fd6723f5e00dfcc29
Malware family:
Agent Tesla v3
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: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.

Malspam

AgentTesla

Executable exe 311c4ba127168d811f31c87eb57305df2d67e615e60d81a3b22d945170c4bffb

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment

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