MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f939baf20921d0b9ed165d3339a3a316628ffe4907e73a7f99fb2b0d8e246928. 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: 5


Intelligence 5 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f939baf20921d0b9ed165d3339a3a316628ffe4907e73a7f99fb2b0d8e246928
SHA3-384 hash: 9eba78c3024e4874886f3137a367cb67d61ce432d5d71b4c0bd884c88ae55a3958752bed5f4e53853d87b909276dd829
SHA1 hash: 7ad15d659b1028276793e3986e3bbf803ee73806
MD5 hash: 29b6f7d8b57b9189e55cd2de7a7ac44f
humanhash: sixteen-robert-zulu-pip
File name:efs-specialist.scr
Download: download sample
Signature AgentTesla
Create hunting rule
File size:764'416 bytes
First seen:2020-06-03 11:22:47 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:7hiJhGiN7VueednwrWE1Y6BJhesAqftE2awVrP7ahAEMDrMUgyRAXagnaPQYa+Sj:tchG0ueeK6KhektdVrPSuwYa+S
Threatray 11'008 similar samples on MalwareBazaar
TLSH BEF4E00275807EAECA3D8CB3941314138FB192B25A4AF3573C9A52FF191EBB58B0575B
Reporter abuse_ch
Tags:AgentTesla scr


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: smtp.livemail.co.uk
Sending IP: 213.171.216.60
From: sales <irgen@efs-specialist.co.uk>
Reply-To: irgen@efs-specialist.co.uk
Subject: Quotation Request
Attachment: efs-specialist.img (contains "efs-specialist.scr")

AgentTesla SMTP exfil server:
business43.web-hosting.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
69
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-06-03 11:38:07 UTC
File Type:
PE (.Net Exe)
Extracted files:
24
AV detection:
18 of 31 (58.06%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=7e43v4qjehilt3iwluztti5dczri77sja7ttu74z7mvq3dreneua._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
0ed8342c19d8ff14d83588ca91cc6b5ab6bd811de15f05e5497d62ba25e56365
AgentTesla
1b5af678f3efd6cbff87b1c00c742534000f6783e93d22c8e4cb50c59393813d
AgentTesla
1d62f58f38403389ce4079c1002d56ab2d64e440c1bbd358ed23d5d726143581
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397c2b4608c484eec2613bea0baa9b7e7b163b9ac27e3a197d5fdaf46792f605
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3c12197e1c9c3d04c5831d3633fcda64dd51bd7c7d31db7ca42fafe341f7a3ee
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98a835f646602f297b6f5890b9b60390301746f19046a748fc4bc75f60b1d826
AgentTesla
b96eaf9ac03911e5764eb149c9c0235c19c97422a45ba1176c962ad151c87185
AgentTesla
dd73ef0c278e50bc42f5afe096966fa841b9acbb6bfb553a67724b04cc85d097
AgentTesla
ef524b7b95bd6abb42e477395a29c1b848b6af42164fbe21b422ea0a8b8e367e
AgentTesla
f036e2aa7615446d2cb3ab689b13aac4055bf2cb8b19b0999db08d7052a80bf1
AgentTesla
+ 10'998 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence rezer0 spyware stealer trojan
Link:
https://tria.ge/reports/201109-1ccdzhf59n/
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
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla Payload
rezer0
AgentTesla
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

img 237e0e8ec793a1b36328e36dfc39b574e2e95d83e11fff5a0244c917d6a73a0b

AgentTesla

Executable exe f939baf20921d0b9ed165d3339a3a316628ffe4907e73a7f99fb2b0d8e246928

(this sample)

  
Dropped by
MD5 7340b3fa756eb361aac9944eabd64bf8
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 237e0e8ec793a1b36328e36dfc39b574e2e95d83e11fff5a0244c917d6a73a0b

Comments