MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 50828bc03c789210be4ad053d4c2c58eb68b4ddd6a9716588a345ef8786373d2. 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 23 File information Comments
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SHA256 hash: 50828bc03c789210be4ad053d4c2c58eb68b4ddd6a9716588a345ef8786373d2
SHA3-384 hash: 7d3669fd6c8327656a58c98e251b89f42ec951566fa7b15a79a5cd9e435ab5141eb6808b43407599936ea93e7fad7f33
SHA1 hash: daf6c98175e8c39327c47a99675620ff92a26268
MD5 hash: e55bb4403693e8b9990ebf15921a8b7b
humanhash: hotel-colorado-california-ohio
File name:chem-03240.pdf.gz
Download: download sample
Signature AgentTesla
Create hunting rule
File size:710'896 bytes
First seen:2024-06-20 14:05:59 UTC
Last seen:Never
File type: gz
MIME type:application/x-rar
ssdeep 12288:XiHAGRkkFmUC5obDjWeePzkd9B54QuLx33OBKdW3hCD0B11H0xs51QXb:XiHAMFQCDjWeePYd9B54QuFnOB7wD0O/
TLSH T1F0E4331B8BFD89054EB55FA36835F4EE8897250B6C836C243BF7582F48ECB81B469D11
TrID 61.5% (.RAR) RAR compressed archive (v5.0) (8000/1)
38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Reporter cocaman
Tags:AgentTesla gz


Avatar
cocaman
Malicious email (T1566.001)
From: "joesidekt@chemdyes.com.my" (likely spoofed)
Received: "from [41.216.183.233] (unknown [41.216.183.233]) "
Date: "19 Jun 2024 22:55:33 -0700"
Subject: "Chemdyes Sdn Bhd Request"
Attachment: "chem-03240.pdf.gz"

Intelligence

File Origin
# of uploads :
1
# of downloads :
86
Origin country :
CH CH
File Archive Information

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

File name:chem-03240.pdf.exe
File size:998'920 bytes
SHA256 hash: c5e436daea517264f270beba101c5d2ae9d9b25a72c8c4ed049239ecddb7fcc8
MD5 hash: fb037c0e0a26a6399cc3c22f24d819db
MIME type:application/x-dosexec
Signature AgentTesla
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.28929.RarHeur.UNOFFICIAL
Create hunting rule

Sanesecurity.Rogue.0hr.20240620-0534.UNOFFICIAL
Create hunting rule

Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade obfuscated overlay packed vbnet
Link:
https://www.filescan.io/uploads/6674374c6b8dba248b434a8f/reports/f45420a9-13dd-45e6-aa0a-914f520eecbe/overview
Verdict:
Suspicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/50828bc03c789210be4ad053d4c2c58eb68b4ddd6a9716588a345ef8786373d2
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/50828bc03c789210be4ad053d4c2c58eb68b4ddd6a9716588a345ef8786373d2/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2024-06-19 07:06:33 UTC
File Type:
Binary (Archive)
Extracted files:
2
AV detection:
17 of 24 (70.83%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=kcbixqb4pcjbbpsk2bj5jqwfr23iwto5nklrmwekgrppq6ddopja._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla execution keylogger spyware stealer trojan
Link:
https://tria.ge/reports/240620-rfj54swbkp/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
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
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:
0.94
Link:
https://yomi.yoroi.company/submissions/50828bc03c789210be4ad053d4c2c58eb68b4ddd6a9716588a345ef8786373d2

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
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_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:SUSP_RAR_with_PDF_Script_Obfuscation
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects RAR file with suspicious .pdf extension prefix to trick users
Reference:Internal Research
Rule name:SUSP_RAR_with_PDF_Script_Obfuscation_RID34A4
Create hunting rule
Author:Florian Roth
Description:Detects RAR file with suspicious .pdf extension prefix to trick users
Reference:Internal Research
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

gz 50828bc03c789210be4ad053d4c2c58eb68b4ddd6a9716588a345ef8786373d2

(this sample)

AgentTesla

Executable exe c5e436daea517264f270beba101c5d2ae9d9b25a72c8c4ed049239ecddb7fcc8

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 c5e436daea517264f270beba101c5d2ae9d9b25a72c8c4ed049239ecddb7fcc8
  
Dropping
AgentTesla
  
Dropping
MD5 fb037c0e0a26a6399cc3c22f24d819db

Comments