MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6c731b9e623222de40d78c857573d713bafce156a4b42dd445a840fddfe585be. 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: 4


Intelligence 4 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6c731b9e623222de40d78c857573d713bafce156a4b42dd445a840fddfe585be
SHA3-384 hash: b899d297cf61d04fe8bc16b36e8384a8e6fb7c5ecdc1ec44544924b417ea47c2124be5427f7437f759f4c1d7505aa522
SHA1 hash: 360b38f1050fa182cb4c579dd7af60d784d3f543
MD5 hash: 6864baa092a9d571a6b2b90994695ec8
humanhash: early-helium-blue-fruit
File name:Akbank Bildirimip_PDF.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:543'232 bytes
First seen:2020-05-21 10:38:23 UTC
Last seen:2020-05-21 12:25:06 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 12288:Nd0O4v8zUGxxUNPDmRiYMxXj0Q2fd26rTAXuxm:fb4v2U4iyRexXjoFJrEex
Threatray 10'649 similar samples on MalwareBazaar
TLSH E4C41250B7F8A761E9AA4BF5283210902376B65753A1C7AC0C83B1CF6D33B95D781B27
Reporter abuse_ch
Tags:AgentTesla Akbank exe geo TUR


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: b2c01.promegahost.com
Sending IP: 77.223.142.96
From: AKBANK <noreply@akbank.com>
Subject: xxxx
Attachment: Akbank Bildirimip_PDF.gz (contains "Akbank Bildirimip_PDF.exe")

AgentTesla SMTP exfil server:
smtp.yandex.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
86
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.BackDoor.SpyBotNET.17.4982.18774.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-05-21 11:27:35 UTC
File Type:
PE (.Net Exe)
Extracted files:
5
AV detection:
19 of 31 (61.29%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
17b08a5f3af74a6f01300f637e6975b4d42a04b3c1f5825a86106adc48f51608
AgentTesla
348ab69ec7c99d1803d0b8b29f5959fff8dd6daed1d992f7da2d796495ac0a67
AgentTesla
3cad8abfd66f6df4932c89a68f71e666568d74cb9260b05984294d1675e2d838
AgentTesla
4664b88274ef7c903d7eb7c18ab51ba8109640210334f648d696afcecf935ddd
AgentTesla
62433e4de86d61a56cfc3333382d8a43d666a4839415a88ceca53a0754e06636
AgentTesla
9fce2cd939b4baf51d8197e16a0d7b2644b33bf13d2c4d89b85ed159863324e3
AgentTesla
beaa5c13b3a73673a51f0cf8a2c24ef5ec65c3bbe0007520d4af6c37a8d43aca
AgentTesla
c1e70670831fff1662c4d65b509cadd9f4d493aa94c29e2a3895051179fab082
AgentTesla
d6e3f0da64e49d6752ac11f1ad3af3adc797901acfe2d00411d4d05b613053fb
AgentTesla
f518f0a8e6238b33a99b3c030da878a1230d278dff2cac740c2a6c089b7801b3
AgentTesla
+ 10'639 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla coreentity evasion keylogger persistence rezer0 spyware stealer trojan
Link:
https://tria.ge/reports/201109-5h1kxk287j/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies service
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
rezer0
AgentTesla
CoreEntity .NET Packer
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:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:CAP_HookExKeylogger
Create hunting rule
Author:Brian C. Bell -- @biebsmalwareguy
Reference:https://github.com/DFIRnotes/rules/blob/master/CAP_HookExKeylogger.yar
Rule name:win_agent_tesla_w1
Create hunting rule
Author:govcert_ch
Description:Detect Agent Tesla based on common .NET code sequences

File information

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

Malspam

AgentTesla

gz db9e101a455cc5601582e029cae66c9d79c9042da5a0faf20aa145e47fd8f42d

AgentTesla

Executable exe 6c731b9e623222de40d78c857573d713bafce156a4b42dd445a840fddfe585be

(this sample)

  
Dropped by
MD5 b0d4920c81b2b52f8c711eda531f38b8
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 db9e101a455cc5601582e029cae66c9d79c9042da5a0faf20aa145e47fd8f42d

Comments