MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 13adbc5c76ac9119796832b9b16818fcf63d83974edbf92cd4456c43a9468d85. 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 16 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 13adbc5c76ac9119796832b9b16818fcf63d83974edbf92cd4456c43a9468d85
SHA3-384 hash: 29af39cad10704ecdca4a01d8dd5bfa34304037f2c10135f43caf5208f27664ac936810152f55082314c1301de53a22a
SHA1 hash: 93dddf31e9c63aaecc2086cabb0564741f54c3d8
MD5 hash: 7a26525eff1f55723b5f9fec015b965f
humanhash: aspen-oregon-november-happy
File name:overdue invoice.rar
Download: download sample
Signature AgentTesla
Create hunting rule
File size:644'011 bytes
First seen:2023-10-24 06:08:53 UTC
Last seen:Never
File type: rar
MIME type:application/x-rar
ssdeep 12288:TuxAExUV2i+iuUkMv/ikIG6M+jo2wgiaXv2QvusBgEBGryMxUlmXUHaw:Tux1Xi+iXniHRv2QvaEBGyMxUl5aw
TLSH T1E0D42332B6932E4B22F37BA9031409836CC9D8510A395D2DB7DF26D1135C935E7968FE
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: "haiwenbj@haiwen-law.com" (likely spoofed)
Received: "from haiwen-law.com (unknown [185.225.75.115]) "
Date: "16 Oct 2023 05:34:09 -0700"
Subject: "overdue invoice"
Attachment: "overdue invoice.rar"

Intelligence

File Origin
# of uploads :
1
# of downloads :
108
Origin country :
CH CH
File Archive Information

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

File name:iaCASDYFM2KY8M4.exe
File size:672'256 bytes
SHA256 hash: 7a7b9292097894feaec9c1416998c7a622100688c40a76daf8d5d20c937b4aa1
MD5 hash: 76049ae85226e49aebf49d8a905bf1f2
MIME type:application/x-dosexec
Signature AgentTesla
Vendor Threat Intelligence
Result
Verdict:
Unknown
File Type:
PE File
Link:
https://app.docguard.net/13adbc5c76ac9119796832b9b16818fcf63d83974edbf92cd4456c43a9468d85/results/dashboard
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/65375f7fe3768e7905c8e4b1/reports/ed1b8c46-5e77-4815-861c-7235a6f60e1b/overview
Verdict:
Malicious
Link:
https://www.hybrid-analysis.com/sample/13adbc5c76ac9119796832b9b16818fcf63d83974edbf92cd4456c43a9468d85
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/13adbc5c76ac9119796832b9b16818fcf63d83974edbf92cd4456c43a9468d85/
Threat name:
Win32.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2023-10-16 11:15:32 UTC
File Type:
Binary (Archive)
Extracted files:
10
AV detection:
17 of 38 (44.74%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=cow3yxdwvsirs6ligk43c2ay7t3d3a4xj3n7slguivwehkkgrwcq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/231024-g5gq6sbb7w/
Behaviour
Modifies system certificate store
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Adds Run key to start application
Looks up external IP address via web service
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.

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
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: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 13adbc5c76ac9119796832b9b16818fcf63d83974edbf92cd4456c43a9468d85

(this sample)

AgentTesla

Executable exe 7a7b9292097894feaec9c1416998c7a622100688c40a76daf8d5d20c937b4aa1

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 7a7b9292097894feaec9c1416998c7a622100688c40a76daf8d5d20c937b4aa1
  
Dropping
AgentTesla
  
Dropping
MD5 76049ae85226e49aebf49d8a905bf1f2

Comments