MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b7ebbf2cb82e29b854f646b66e3756b5226910b42996d267fb770eff225954d. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments

SHA256 hash: 4b7ebbf2cb82e29b854f646b66e3756b5226910b42996d267fb770eff225954d
SHA3-384 hash: ba3a49dd113106f85c0b9e69c3c1b867c7342871b489c6df3a47697ca23634b0b1b63e9b137516ae7045c6a5cf3425c4
SHA1 hash: da6acb4c862c000c0c9ebea5eddc83fd98553ed7
MD5 hash: 73ffc9971ac079c61759dcabbff8e731
humanhash: four-hot-low-hamper
File name:OV2BR2G9XZfQ1M9.exe
Download: download sample
Signature AgentTesla
File size:523'776 bytes
First seen:2021-12-16 04:16:57 UTC
Last seen:2021-12-16 16:03:02 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:CYbAruHoA5QfJ2ULM4qUkOU1oJj/OJvQHt0D77RNRuSK3:dbkYoA5GlLM46OUqB/OJvE0D77ROSK3
Threatray 13'453 similar samples on MalwareBazaar
TLSH T16FB412107AAD5B17C46C5BFD9452700403F05127B663EBDDAFEAB0FB19A2B81CB41A87
Reporter GovCERT_CH
Tags:AgentTesla exe

Intelligence


File Origin
# of uploads :
3
# of downloads :
157
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
75%
Tags:
obfuscated 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
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code contains very large array initializations
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Injects a PE file into a foreign processes
Installs a global keyboard hook
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)
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 / registry access)
Yara detected AgentTesla
Yara detected AntiVM3
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-12-16 04:17:11 UTC
File Type:
PE (.Net Exe)
Extracted files:
9
AV detection:
21 of 27 (77.78%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla collection keylogger persistence spyware stealer trojan
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Adds Run key to start application
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
ae5d2fb4c3b14ee0432a2cd1215255b7e2991fe14f0cf97deddd69ae95b3ba91
MD5 hash:
4fa4a82fe52c554e20257ef0297369f3
SHA1 hash:
8b104551e4596ecb0840f60c0fad6605d0cb5c74
SH256 hash:
93601811bdc785cbd40f9c409473048c73c4c618e7b7556da1a03cfa6d3a720a
MD5 hash:
f3a95c86d0c4ec716dc488647f56699a
SHA1 hash:
615d221aeeb6f5a67102dd3d8a0cbbd2de9c3204
SH256 hash:
ecaa30b9a591eed152098090118b8edb889385ac390c0d32293af103d39e55b1
MD5 hash:
6059f4998e0c521bc69f422ce7777293
SHA1 hash:
09acceb826ed47fa0a1e10db52789b923efc627c
SH256 hash:
4b7ebbf2cb82e29b854f646b66e3756b5226910b42996d267fb770eff225954d
MD5 hash:
73ffc9971ac079c61759dcabbff8e731
SHA1 hash:
da6acb4c862c000c0c9ebea5eddc83fd98553ed7
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 4b7ebbf2cb82e29b854f646b66e3756b5226910b42996d267fb770eff225954d

(this sample)

  
Dropped by
agenttesla
  
Delivery method
Distributed via e-mail attachment

Comments