MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4d97e5fd7ec7fa2db1180417dbf4c4164e2d942c8a42388079b46bc5ab2f44c. 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: 9


Intelligence 9 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b4d97e5fd7ec7fa2db1180417dbf4c4164e2d942c8a42388079b46bc5ab2f44c
SHA3-384 hash: 81f40276f46d35d55f6e31bc2fd06b225646c8793efb69b01896aa81d247243fe302304cc1b8adc7ad9c6015faf9dfbe
SHA1 hash: 21147863e39840ed881d8962bea10c388451b8d7
MD5 hash: 9b132b2baa4f3c7d3bb15b84d9e9608d
humanhash: oxygen-shade-ten-early
File name:FACT.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:673'792 bytes
First seen:2020-08-18 19:29:51 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:vsdD2kDF2Uwg79kUHoziGJp02xJqFgarAJOt0REJ63JMVk4Opfa3:U52kkUL7O4oziGJy2xJBarAJOt0R+MJW
Threatray 9'492 similar samples on MalwareBazaar
TLSH 66E4F13132948A0DE2B65336CC9B510413FEB8036612CB6DFCD9165D7951BA2AF33EDA
Reporter abuse_ch
Tags:AgentTesla exe Yahoo


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: sonic304-56.consmr.mail.bf2.yahoo.com
Sending IP: 74.6.128.31
From: Ivanet Neluta <ivanet_neluta@yahoo.com>
Subject: factura.
Attachment: FACT.7z (contains "FACT.exe")

AgentTesla SMTP exfil server:
bgisped.com:587

Intelligence

File Origin
# of uploads :
1
# of downloads :
68
Origin country :
n/a
Vendor Threat Intelligence
Detection:
AgentTeslaV2
Create hunting rule
Link:
https://www.capesandbox.com/analysis/48053/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Detection:
agenttesla
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b4d97e5fd7ec7fa2db1180417dbf4c4164e2d942c8a42388079b46bc5ab2f44c/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2020-08-18 19:31:08 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=wtmx4x6x5r72fwyrqbax3p2mifsofwkczcschcahtndlywvs6rga._file
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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AgentTesla
418e6ce3fd66c68a594bada93ee5789ddfc4df367e3c1be735cd07fe078fbe99
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70e55061f4e965a512c042bc1541f3d4e5a910a493ffb63d5a123f9c82a94f70
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8b2bf895a6d6db530ed42449ef1691d13c85a9091993e3b6bc1530456617ce29
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b4ebfd103993464897b2a45938edb01fec2e897cf8c46500b0b6264a57928f9c
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d05efc3d09d7c08668da10c09101815e0af2f3376a03512e959ca467835b9c26
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d2e102ec3fdd6dce78c5144da860990bdac37221341382343e949b9d80ec016f
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e46618f0270d9929397a5d667b7133ddfb836d08d10d8cf83687b0b71d37cf95
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e513fe3d22372fe4e0da834dbecd9fda11473a5861b195d9330b2b23c82650e8
AgentTesla
+ 9'482 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
keylogger stealer trojan spyware family:agenttesla
Link:
https://tria.ge/reports/200818-fd2bh5henj/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
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
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/b4d97e5fd7ec7fa2db1180417dbf4c4164e2d942c8a42388079b46bc5ab2f44c

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

zip aa6a6d01e1863edc8d640fba369957a970bde274b6261e96e07af557afd80db3

AgentTesla

Executable exe b4d97e5fd7ec7fa2db1180417dbf4c4164e2d942c8a42388079b46bc5ab2f44c

(this sample)

  
Dropped by
MD5 3db940ce6ee50ae069c2859cc72e184e
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 aa6a6d01e1863edc8d640fba369957a970bde274b6261e96e07af557afd80db3
Cape
Cape
https://www.capesandbox.com/analysis/48053/

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