MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 55bb46bf486c75b1774c07b2d71a819131bcf3005e30a6f1817c3e24ed8e2589. 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: 10


Intelligence 10 IOCs YARA 3 File information Comments

SHA256 hash: 55bb46bf486c75b1774c07b2d71a819131bcf3005e30a6f1817c3e24ed8e2589
SHA3-384 hash: dab29ffb13522f750d5cfae9a46f81857466cbef48111ea07c3e2ab79203f2acf20686e8ce8e4b43d4d91b3f2ef1d7e2
SHA1 hash: 7738e3f1182e53ea5f5ed7a9644b0ca18632bb23
MD5 hash: 64232953bbcf599a77b499c72ceb43e6
humanhash: winter-georgia-five-cola
File name:PAYMENT INVOICE-9876543456789.exe
Download: download sample
Signature AgentTesla
File size:651'776 bytes
First seen:2021-02-19 19:55:35 UTC
Last seen:2021-02-19 21:57:33 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:OLqTcbz6hGTKswh/b85d5T1t2XpxyVLoIYyjzprRlccmA6:OLqTcJwh/GCXLIYyjFr
Threatray 3'283 similar samples on MalwareBazaar
TLSH 3ED4DF666364BBDDC63E4D3580221A00EFF1E6375303E7C76DE34AEE15C8E624B16296
Reporter GovCERT_CH
Tags:AgentTesla

Intelligence


File Origin
# of uploads :
2
# of downloads :
231
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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
C2 URLs / IPs found in malware configuration
Found evasive API chain (trying to detect sleep duration tampering with parallel thread)
Found malware configuration
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Installs a global keyboard hook
Machine Learning detection for sample
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)
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)
Yara detected AgentTesla
Yara detected AntiVM_3
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2021-02-19 14:11:16 UTC
AV detection:
18 of 29 (62.07%)
Threat level:
  5/5
Result
Malware family:
agenttesla
Score:
  10/10
Tags:
family:agenttesla keylogger spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
AgentTesla Payload
AgentTesla
Unpacked files
SH256 hash:
b2f91d1427c7b60a3ad485bed04ba75636560783c9265a8f26542d5f6aa5d8a9
MD5 hash:
5ad6dc03137fc80e4e691f4b409d9120
SHA1 hash:
edb38e49ce79ecce33ce9a891df56468c3a4016e
SH256 hash:
55bb46bf486c75b1774c07b2d71a819131bcf3005e30a6f1817c3e24ed8e2589
MD5 hash:
64232953bbcf599a77b499c72ceb43e6
SHA1 hash:
7738e3f1182e53ea5f5ed7a9644b0ca18632bb23
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:ach_AgentTesla_20200929
Author:abuse.ch
Description:Detects AgentTesla PE
Rule name:MALWARE_Win_AgentTeslaV3
Author:ditekSHen
Description:AgentTeslaV3 infostealer payload
Rule name:win_agent_tesla_v1
Author:Johannes Bader @viql
Description:detects Agent Tesla

File information


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

Malspam

AgentTesla

Executable exe 55bb46bf486c75b1774c07b2d71a819131bcf3005e30a6f1817c3e24ed8e2589

(this sample)

  
Dropped by
AgentTesla
  
Delivery method
Distributed via e-mail attachment

Comments