MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 191bbf637696ece59a72a105bdcd7f9e175309fff88acc612c353cef8cdf5234. 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: 7


Intelligence 7 IOCs YARA 21 File information Comments
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SHA256 hash: 191bbf637696ece59a72a105bdcd7f9e175309fff88acc612c353cef8cdf5234
SHA3-384 hash: 67d2f1c834376c5e52fbc80d074d2c50e15ed77464fc2780d3164e2b3763175dd1d0d9dbeb7c288b9c10e05c63f7cf54
SHA1 hash: ad05e6aee0da0791d9cdc1fbafb3479d19f2aadd
MD5 hash: 25fdfb9df36532b5885b11e6f4730685
humanhash: earth-texas-july-zulu
File name:purchase order T&B19-20PO128.zip
Download: download sample
Signature AgentTesla
Create hunting rule
File size:692'433 bytes
First seen:2024-05-15 06:07:13 UTC
Last seen:2024-05-15 11:23:20 UTC
File type: zip
MIME type:application/zip
ssdeep 12288:ZZdboSYvbnP/rHyiL2+fvs+LywhjghKio+NqaGa0lPhQd2mRiFtIUWiUopExAWFr:Z4SsnLyV+fvstwpgtG5PhQEmRiFtIFYg
TLSH T167E423E15B84B47F0AD155F0AFBC2BAB009C11E2D2B2FE530E707456B485A81DD6ABCD
TrID 80.0% (.ZIP) ZIP compressed archive (4000/1)
20.0% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1)
Reporter cocaman
Tags:AgentTesla zip


Avatar
cocaman
Malicious email (T1566.001)
From: "Yang Haowei <purchase5@bsc-sz.com>" (likely spoofed)
Received: "from bsc-sz.com (unknown [185.222.58.105]) "
Date: "14 May 2024 22:09:26 +0200"
Subject: "SHENZHEN BSC TECHNOLOGY CO., LTD purchase order T&B/19-20/PO/128"
Attachment: "purchase order T&B19-20PO128.zip"

Intelligence

File Origin
# of uploads :
2
# of downloads :
252
Origin country :
CH CH
File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:purchase order T&B19-20PO128.bat
File size:729'608 bytes
SHA256 hash: d967ab9c69606d614df05823f3fcb76d436dbda3f1306db4d132acbda8aa8cb5
MD5 hash: cb557a97949c50fc133f4d58537ddc44
MIME type:application/x-dosexec
Signature AgentTesla
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Foxhole.Zip_fs751.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade overlay packed
Link:
https://www.filescan.io/uploads/6644514381ea6b1eef40fb35/reports/42f34a61-6a41-4516-9216-efc18f6bb127/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/191bbf637696ece59a72a105bdcd7f9e175309fff88acc612c353cef8cdf5234
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/191bbf637696ece59a72a105bdcd7f9e175309fff88acc612c353cef8cdf5234
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/191bbf637696ece59a72a105bdcd7f9e175309fff88acc612c353cef8cdf5234/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2024-05-14 11:55:30 UTC
File Type:
Binary (Archive)
Extracted files:
10
AV detection:
20 of 24 (83.33%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=den36y3ws3wolgtsuec33tl7tylvgcp77cfmyyjmgu6o7dg7ki2a._file
Result
Malware family:
agenttesla
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Score:
  10/10
Tags:
family:agenttesla execution keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240515-hr3bdsec34/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Checks computer location settings
Command and Scripting Interpreter: PowerShell
AgentTesla
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/191bbf637696ece59a72a105bdcd7f9e175309fff88acc612c353cef8cdf5234

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:AgentTeslaV3
Create hunting rule
Author:ditekshen
Description:AgentTeslaV3 infostealer payload
Rule name:AgentTeslaV5
Create hunting rule
Author:ClaudioWayne
Description:AgentTeslaV5 infostealer payload
Rule name:Agenttesla_type2
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
Rule name:INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438
Create hunting rule
Author:ditekSHen
Description:Detects executables signed with stolen, revoked or invalid certificates
Rule name:INDICATOR_SUSPICIOUS_Binary_References_Browsers
Create hunting rule
Author:ditekSHen
Description:Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Confidential_Data_Store
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_References_Messaging_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many email and collaboration clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_Referenfces_File_Transfer_Clients
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing many file transfer clients. Observed in information stealers
Rule name:INDICATOR_SUSPICIOUS_EXE_VaultSchemaGUID
Create hunting rule
Author:ditekSHen
Description:Detects executables referencing Windows vault credential objects. Observed in infostealers
Rule name:malware_Agenttesla_type2
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Author:JPCERT/CC Incident Response Group
Description:detect Agenttesla in memory
Reference:internal research
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (http://www.lukeacha.com)
Description:Generic Detection for multiple RAT families, PUPs, Packers and suspicious executables
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:pe_imphash
Create hunting rule
Rule name:PE_Potentially_Signed_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:Windows_Generic_Threat_9f4a80b2
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_AgentTesla_ebf431a8
Create hunting rule
Author:Elastic Security
Reference:https://www.elastic.co/security-labs/attack-chain-leads-to-xworm-and-agenttesla
Rule name:win_agent_tesla_g2
Create hunting rule
Author:Daniel Plohmann <daniel.plohmann@fkie.fraunhofer.de>

File information

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

Malspam

AgentTesla

zip 191bbf637696ece59a72a105bdcd7f9e175309fff88acc612c353cef8cdf5234

(this sample)

AgentTesla

Executable exe d967ab9c69606d614df05823f3fcb76d436dbda3f1306db4d132acbda8aa8cb5

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 d967ab9c69606d614df05823f3fcb76d436dbda3f1306db4d132acbda8aa8cb5
  
Dropping
AgentTesla

Comments