MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a8a9e1ebbe728b5782a903729896edf68191c3d3af656feac7d9ac590b717e66. 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: a8a9e1ebbe728b5782a903729896edf68191c3d3af656feac7d9ac590b717e66
SHA3-384 hash: 6a69e2a01553fed45054fd8da90e90003360849522a3e0fc1122a513a1a5726ffe01dc513da3b458466069b6fa486ced
SHA1 hash: aaf235117f5d6b681c805d48506a4a0eacafcfb6
MD5 hash: 85ac7ba9fbcc19d097745a6b26c2ab66
humanhash: bulldog-freddie-freddie-michigan
File name:inquiry.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:724'992 bytes
First seen:2020-06-05 10:41:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:R4YDHzZFo7okHg2aZf78EdMvd3XUBZx/IY1EoPfhgmLeAmC5UluVN7nknBy3Y:R4mzbo7o/f77+3Mx/IsECf1LevEUKNG
Threatray 11'008 similar samples on MalwareBazaar
TLSH 15F4010431E4665FD2BB8DB19D621C106BB17457BF23D3479D8B21AE482DF868E04FAB
Reporter abuse_ch
Tags:AgentTesla exe


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: slot0.tkbsoaeng.com
Sending IP: 45.95.169.71
From: info@tkbsoaeng.com
Subject: Re: Fwd: Materials request
Attachment: inquiry.GZ (contains "inquiry.exe")

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

Intelligence

File Origin
# of uploads :
1
# of downloads :
70
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-06-04 23:23:49 UTC
AV detection:
24 of 31 (77.42%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vcu6d256okfvpavjanzjrfxn62azdq6tv5sw72wh3gwfsc3rpzta._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
Similar samples:
407460c7b6ddca33779fbafe8199c0aa606d3233b6d92a61b96c6a04840edec4
AgentTesla
55761a62c31c4e4c1b063e22f06db5612dcd2542feafdec1328a38e557d1fe2d
AgentTesla
920b0a91b717d618e6f64fd01ef9b08aeaf51046fb62ee9839731795dc5aa85d
AgentTesla
9cc50eef0980d06a933be9a2bd62d43141bf2569636c9a86d17ba4b6fdbd9989
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ac5ebcd391d6b8a015e80ec1cad293374a5a26729b475de2d93f76cb6a3cb8c4
AgentTesla
ade6319a39a00bf3db7e3668d57dbec2144ba7488afa91d0aaf40ee49cf83340
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b461e2c2a90c171e0aab4cabf499c7fca2704c45748f238b0ea54252c34844ed
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cac67b5ab04de81f69b8f4f882ad22e26672a61ed96d2e1f69d72f59c36bf401
AgentTesla
e4c60dcd8e589bb396186142764e1c233cb2540f28552f35eeb4f9d87d707eca
AgentTesla
eb6b605e87d9b95d3025dc253f41a29839939410291038e1cbe630338578d17e
AgentTesla
+ 10'998 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla evasion keylogger persistence rezer0 spyware stealer trojan
Link:
https://tria.ge/reports/201109-pfs4afevmj/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
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
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 cfdf72c413b07e1a7734edba789449e83b0631fcf768c542368585f0582f4c30

AgentTesla

Executable exe a8a9e1ebbe728b5782a903729896edf68191c3d3af656feac7d9ac590b717e66

(this sample)

  
Dropped by
MD5 25e2e5b6898972e257460015e84d9d7e
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 cfdf72c413b07e1a7734edba789449e83b0631fcf768c542368585f0582f4c30

Comments