MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3a6f6da5183576d9360afba90ea7055507837c0ce5f32699cec8da807c08d1ab. 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: 8


Intelligence 8 IOCs YARA 18 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3a6f6da5183576d9360afba90ea7055507837c0ce5f32699cec8da807c08d1ab
SHA3-384 hash: b8a2b9dab355b7898c65822cf3f8cbb2d178ac90abe8fa780c0e4b1315a2405763491cd493eaf524e644c0ad9cee1ea3
SHA1 hash: 0ee5b4ea00e08c181837d4ee63df3a9c7a4b1537
MD5 hash: 4cf9e356a82317c031ff68bd30ccf944
humanhash: carbon-nebraska-high-gee
File name:Commercial Invoice PDF.rar
Download: download sample
Signature AgentTesla
Create hunting rule
File size:778'890 bytes
First seen:2024-04-26 12:44:10 UTC
Last seen:Never
File type: rar
MIME type:application/x-rar
ssdeep 12288:CXywjWHz41z7+0TKtRjMqPsHIH0uOhnnlpFAMr5H+/5+VZKuGvkSgPAuu/WvQTRA:uywjWT+7EPsHIHvcnl3AyH+howJcSZuP
TLSH T141F433280D24D20083D2299AEF45187DD21236FC0763E1FD5CE9DE9A4E96D7AED3E11A
TrID 61.5% (.RAR) RAR compressed archive (v5.0) (8000/1)
38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Reporter cocaman
Tags:AgentTesla INVOICE rar


Avatar
cocaman
Malicious email (T1566.001)
From: "<EXP.SALES@STARLINC.COM.CN>" (likely spoofed)
Received: "from hosted-by.rootlayer.net (unknown [185.222.58.228]) "
Date: "26 Apr 2024 11:38:43 +0200"
Subject: "RE: Commercial Invoice/B/L"
Attachment: "Commercial Invoice PDF.rar"

Intelligence

File Origin
# of uploads :
1
# of downloads :
123
Origin country :
CH CH
File Archive Information

This file archive contains 2 file(s), sorted by their relevance:

File name:Commercial Invoice PDF.bat
File size:841'728 bytes
SHA256 hash: 1a794211deaa0ecb6abc6101d7c1bd61111b4dd2d895ee7ecf78fbf17f4c9ab3
MD5 hash: 5a12438b3b4c926c12a9376c7bf13426
MIME type:application/x-dosexec
Signature AgentTesla
File name:32512
File size:20 bytes
SHA256 hash: 973ffbd3d94463c95354dd5c7b02640027978a7c468f16bdc209511ede798a22
MD5 hash: 4d60b3042ad0bd7de47e7fe9ee509912
MIME type:application/octet-stream
Signature AgentTesla
Vendor Threat Intelligence
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/662ba1d0d2fc149e411f4e49/reports/d45d620f-3c92-4ed9-a32c-8d2007568d79/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/3a6f6da5183576d9360afba90ea7055507837c0ce5f32699cec8da807c08d1ab
Result
Verdict:
MALICIOUS
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/3a6f6da5183576d9360afba90ea7055507837c0ce5f32699cec8da807c08d1ab/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-04-26 12:00:06 UTC
File Type:
Binary (Archive)
Extracted files:
11
AV detection:
23 of 37 (62.16%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hjxw3jiygv3nsnqk7ouq5jyfkudyg7am4xzsngoozdnia7ai2gvq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/240426-s9xtqsfg51/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
Checks computer location settings
Reads WinSCP keys stored on the system
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
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/3a6f6da5183576d9360afba90ea7055507837c0ce5f32699cec8da807c08d1ab

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:INDICATOR_EXE_Packed_GEN01
Create hunting rule
Author:ditekSHen
Description:Detect packed .NET executables. Mostly AgentTeslaV4.
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
Create hunting rule
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_imphash
Create hunting rule
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

rar 3a6f6da5183576d9360afba90ea7055507837c0ce5f32699cec8da807c08d1ab

(this sample)

AgentTesla

Executable exe 1a794211deaa0ecb6abc6101d7c1bd61111b4dd2d895ee7ecf78fbf17f4c9ab3

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 1a794211deaa0ecb6abc6101d7c1bd61111b4dd2d895ee7ecf78fbf17f4c9ab3
  
Dropping
AgentTesla
  
Dropping
MD5 5a12438b3b4c926c12a9376c7bf13426

Comments