MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f3a1dd374f609e7dd16e27c282c971122e9d8afbb58068a642925ed5a5065ac. 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: 4f3a1dd374f609e7dd16e27c282c971122e9d8afbb58068a642925ed5a5065ac
SHA3-384 hash: 2299264d8998b2ebe9d0fab1a0326559fa3290cf9a05868f51a65d3ceb6697ae5451ebc5bf136dc68cb30d0d18d40b64
SHA1 hash: 56888af9d5e397c80f0c8e2628c8413a93bf81c9
MD5 hash: 9105810a764708d7b37bfbff0988276a
humanhash: sweet-sweet-stairway-fish
File name:BA00415Q0123854UOS.exe
Download: download sample
Signature AgentTesla
Create hunting rule
File size:390'656 bytes
First seen:2020-05-27 18:07:53 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'602 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 6144:nw7rCzz2WMI9ZLcXDKFvCtPEuRpizyCoOibXHobCISbcTKAt8NYTJCuIcCTBC7xe:RX9ZLcO5buzizyCobroaITHeC7IpNC7D
Threatray 10'651 similar samples on MalwareBazaar
TLSH FA84232997A49328D7ADABFF9312082513F115460157EF5D2E6DF3DB3A8B7081D2BA03
Reporter abuse_ch
Tags:AgentTesla BofA exe geo USA


Avatar
abuse_ch
Malspam distributing AgentTesla:

HELO: cloudhosting.rtarmenia.am
Sending IP: 46.19.96.204
From: Bank of America, N. A. <AdvicesUS@bofa.com>
Subject: Advice from Bank of America
Attachment: BA00415Q0123854UOS.Gz (contains "BA00415Q0123854UOS.exe")

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

Intelligence

File Origin
# of uploads :
1
# of downloads :
77
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.BehavesLike.Win32.Generic.fc.28083.UNOFFICIAL
Create hunting rule

Gathering data
Threat name:
ByteCode-MSIL.Trojan.Crysan
Create hunting rule
Status:
Malicious
First seen:
2020-05-27 18:37:19 UTC
AV detection:
27 of 31 (87.10%)
Threat level:
  2/5
Verdict:
malicious
Label(s):
agenttesla
Create hunting rule
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0e42efb1ea61d5d30ed176723fe7d724138abcf6c0291ced028ffa940171a312
AgentTesla
0fbf94a719f66bcd7d5d5a8fe06d509bd4bf09ccc7610d6b08a6eb97136bc84a
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7c65791a28bb5371879626ac09de636c77bc6439e139db1b5110954beeb75d04
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94581916a6f0f8c4c0e9238fb1ec9ee8f44035e750f7a41115e68ebe526e6ee4
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a4a97ffddcc1f86ee8d3c45421375fb560f3b9aa9428cc3079cffc1edf930d0d
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ac6e5dcfea294b4260a82eea6cb2de75eecb7d960f3797163aaaecfd9c95d380
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e4021aa570add67f2b5851726db7b5e96bef884681c81dd8dfc7383948314474
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f5e2764cbde44d86d4b2a73853c98b8e6a9f325f4e187aa1f0af53b9f4844d05
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f8ac7b65c655d5e604540692e17267d64d0056d89dbdd3e3ff3c03db9b602f79
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fe6ae4e601219d9bf84478571167e58466ca08fa917df8407fb5169c69109a72
AgentTesla
+ 10'641 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla coreentity keylogger persistence rezer0 spyware stealer trojan
Link:
https://tria.ge/reports/201109-1q4mzjsssx/
Behaviour
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
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 fd3dfbebab26348cdec8bf9ba910d33a57c691b99b97f76531ed9d6c288200c5

AgentTesla

Executable exe 4f3a1dd374f609e7dd16e27c282c971122e9d8afbb58068a642925ed5a5065ac

(this sample)

  
Dropped by
MD5 f590634240b2a8b7f9d34420f432f573
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 fd3dfbebab26348cdec8bf9ba910d33a57c691b99b97f76531ed9d6c288200c5

Comments