MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4080e1316e697c2a512e858807ce5d01b3578e52808610ec815475f7a5703d63. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4080e1316e697c2a512e858807ce5d01b3578e52808610ec815475f7a5703d63
SHA3-384 hash: 93bfb64bdcc492300a170a7abcd9656262f66ee40e9d944ccccbd02e2e6e2817de19ac2b3c00a76a240a1ee1c9acdfa0
SHA1 hash: cfbd3043f3f9216a332ab2302d231494c438e9bf
MD5 hash: 1a1444f4d5bce0044d763c18a992fc7f
humanhash: failed-uniform-seven-tennis
File name:Authorization Letter 5.5.20 355267833773663773838.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:676'352 bytes
First seen:2020-05-05 16:03:39 UTC
Last seen:2020-05-05 16:46:14 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:5myZ7l1ur9OfdjACTqHQW01xLzar2pJAjzYNhws58SvQiuQzal//7PRAw1cIiRnm:P7lG9kdjAC+wWwaEozE
Threatray 10'615 similar samples on MalwareBazaar
TLSH 3EE46C9D721072EFC857D472DE982C64EA513CBB831F4207A02775ADAA6D897CF244F2
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: yukagaku.jp
Sending IP: 163.44.7.183
From: Dominik Krause <takahiro.suzuki@yukagaku.jp>
Reply-To: Dominik Krause <sales@adminstrument.com>
Subject: Authorization Letter 05.05.20 35526783
Attachment: Authorization Letter 5.5.20 355267833773663773838.z (contains "Authorization Letter 5.5.20 355267833773663773838.exe")

AgentTesla SMTP exfil server:
smtp.bnb-spa.com:587

Intelligence

File Origin
# of uploads :
2
# of downloads :
99
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Artemis1A1444F4D5BC.7310.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-05-05 14:47:00 UTC
File Type:
PE (.Net Exe)
Extracted files:
10
AV detection:
24 of 31 (77.42%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=icaocmlonf6cuujoqweapts5agzvpdssqcdbb3ebkr27pjlqhvrq._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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+ 10'605 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/201109-6kjgm5pp3j/
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

File information

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

685fdd07970ba99c7dd5a4da38884dc6

AgentTesla

Executable exe 4080e1316e697c2a512e858807ce5d01b3578e52808610ec815475f7a5703d63

(this sample)

  
Dropped by
MD5 685fdd07970ba99c7dd5a4da38884dc6
  
Delivery method
Distributed via e-mail attachment

Comments