MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 40c4f8262e9ddde99d1886b46877c2ceb8d54f8201aa6df97b1baa909dda0cb4. 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: 10


Intelligence 10 IOCs YARA 26 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 40c4f8262e9ddde99d1886b46877c2ceb8d54f8201aa6df97b1baa909dda0cb4
SHA3-384 hash: 21ffeb3446204dba5a99aabe13abc12dc651820421f5a0fbc2de8e3d4c9a1776e7820cbc68283fa536ff05cad30f99d3
SHA1 hash: befcdc32b42e46b6b68b680d402afc675e48e1d3
MD5 hash: d96b149f8cc3b709b65cd1b944ef2ce7
humanhash: texas-one-november-orange
File name:OVERDUE - ACCOUNT LETTER.tar.001
Download: download sample
Signature AgentTesla
Create hunting rule
File size:701'440 bytes
First seen:2025-08-07 09:13:33 UTC
Last seen:Never
File type: tar
MIME type:application/x-tar
ssdeep 12288:pe3NBJjOoGMtD6dqWQh53fPoteQSSD5uBsCpXhtdMXIbvXDQ:INBJyoGMtGUTfQeQSltlP
TLSH T18BE4127A754CC00BC0D566F584A2F73A43BC1EAFE742E349EAD5ADDB710B3A02419396
TrID 62.9% (.TAR/USTAR) TAR - Tape ARchive (POSIX) (17/3)
37.0% (.TAR) TAR - Tape ARchive (file) (10/3)
Magika tar
Reporter cocaman
Tags:001 AgentTesla DHL tar


Avatar
cocaman
Malicious email (T1566.001)
From: ""James Xiong (DHL CN)" <james.xiong@dhl.com>" (likely spoofed)
Received: "from dhl.com (216-131-73-250.iad.as62651.net [216.131.73.250]) "
Date: "06 Aug 2025 05:16:52 -0700"
Subject: "=?UTF-8?B?5Zue5aSNOiBSRTogVVJHRU5UISBESEwgT1ZFUkRVRSBBQ0NPVU5UIExFVFRFUg==?="
Attachment: "OVERDUE - ACCOUNT LETTER.tar.001"

Intelligence

File Origin
# of uploads :
1
# of downloads :
53
Origin country :
CH CH
File Archive Information

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

File name:OVERDUE - ACCOUNT LETTER.exe
File size:699'904 bytes
SHA256 hash: f5cd003d079d427c2ffb80fd91788083b66b624a2ead6ee8a2963a8f93b0707b
MD5 hash: 6962ac2f17edee589dddf15214475713
MIME type:application/x-dosexec
Signature AgentTesla
Vendor Threat Intelligence
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68946e491e8a59ee04e6ef5e
Tags:
micro spawn shell
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
obfuscated obfuscated packed vbnet
Link:
https://www.filescan.io/uploads/68946e876d7bffa0a79f74a7/reports/cdd18026-b299-4698-acc1-0be5ea9a5d19/overview
Verdict:
Malicious
Labled as:
Trojan.U.AgentTesla
Link:
https://www.hybrid-analysis.com/sample/40c4f8262e9ddde99d1886b46877c2ceb8d54f8201aa6df97b1baa909dda0cb4
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.
Score:
100%
Verdict:
Malware
File Type:
ARCHIVE
Link:
https://malprob.io/report/40c4f8262e9ddde99d1886b46877c2ceb8d54f8201aa6df97b1baa909dda0cb4
Verdict:
inconclusive
YARA:
2 match(es)
Tags:
.Net Executable PE (Portable Executable) SOS: 0.41 Tar Archive
Link:
https://app.malva.re/file/d96b149f8cc3b709b65cd1b944ef2ce7
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/40c4f8262e9ddde99d1886b46877c2ceb8d54f8201aa6df97b1baa909dda0cb4/
Verdict:
Malicious
Threat:
Family.AGENTTESLA
Link:
https://tip.neiki.dev/file/40c4f8262e9ddde99d1886b46877c2ceb8d54f8201aa6df97b1baa909dda0cb4
Threat name:
ByteCode-MSIL.Backdoor.FormBook
Create hunting rule
Status:
Malicious
First seen:
2025-08-06 13:09:35 UTC
File Type:
Binary (Archive)
Extracted files:
12
AV detection:
18 of 23 (78.26%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=idcpqjrotxo6thiyq22gq56cz24nkt4cagvg36l3dovjbho2bs2a._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla discovery execution keylogger persistence spyware stealer trojan
Link:
https://tria.ge/reports/250807-lcsp7afl9x/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
SmartAssembly .NET packer
Suspicious use of SetThreadContext
Looks up external IP address via web service
Checks computer location settings
Command and Scripting Interpreter: PowerShell
AgentTesla
Agenttesla family
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
Link:
https://yomi.yoroi.company/submissions/40c4f8262e9ddde99d1886b46877c2ceb8d54f8201aa6df97b1baa909dda0cb4

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:agentesla
Create hunting rule
Author:Michelle Khalil
Description:This rule detects unpacked agenttesla malware samples.
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:DetectEncryptedVariants
Create hunting rule
Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
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: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:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:win32_dotnet_form_obfuscate
Create hunting rule
Author:Reedus0
Description:Rule for detecting .NET form obfuscate malware
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

tar 40c4f8262e9ddde99d1886b46877c2ceb8d54f8201aa6df97b1baa909dda0cb4

(this sample)

AgentTesla

Executable exe f5cd003d079d427c2ffb80fd91788083b66b624a2ead6ee8a2963a8f93b0707b

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 f5cd003d079d427c2ffb80fd91788083b66b624a2ead6ee8a2963a8f93b0707b
  
Dropping
AgentTesla
  
Dropping
MD5 6962ac2f17edee589dddf15214475713

Comments