MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 38258cca6ecee710d8569840a92106b11f8812a0c35c1d1c63ab93d58053acf4. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 38258cca6ecee710d8569840a92106b11f8812a0c35c1d1c63ab93d58053acf4
SHA3-384 hash: 91f1b42bfdb4b16cf76ddaa5ff55b0a712b6193db5deb89aacc4d7b4f9836b5412bbd4b0cd4c5093a8ab682d58bad2f7
SHA1 hash: ac2ad1e0afd242df7c100d9c4a9bf714a0284485
MD5 hash: c6c34571105ece9e2b235270df2af86d
humanhash: aspen-jersey-robin-angel
File name:proforma invoice.rar
Download: download sample
Signature AgentTesla
Create hunting rule
File size:1'155'983 bytes
First seen:2025-02-04 10:04:08 UTC
Last seen:Never
File type: rar
MIME type:application/x-rar
ssdeep 12288:HjlvrkaEyvjEQ5uigFCxF8a/Lc6Gnl+uwDznpkBGKq8MRlO/t7IKaJTQ1VqHXUrQ:H54QEQciFxmKo6Gc3vpn4VeJGUb+GkMb
TLSH T1703533E42841BAF85DFA7F39D9396E7A64005DCE72497EE4E713D84A071A6FC2881331
TrID 61.5% (.RAR) RAR compressed archive (v5.0) (8000/1)
38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Magika rar
Reporter cocaman
Tags:AgentTesla INVOICE payment rar


Avatar
cocaman
Malicious email (T1566.001)
From: "info@astraco.com.my" (likely spoofed)
Received: "from astraco.com.my (216-151-184-245.lon.as62651.net [216.151.184.245]) "
Date: "03 Feb 2025 19:23:44 -0800"
Subject: "Confirm revised invoice to proceed with payment ASAP."
Attachment: "proforma invoice.rar"

Intelligence

File Origin
# of uploads :
1
# of downloads :
93
Origin country :
CH CH
File Archive Information

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

File name:proforma invoice.exe
File size:1'335'440 bytes
SHA256 hash: 76930f5752402bbffccf8edeb6b07cd1ccf925c8c34853650e367cb2e0bc3e8a
MD5 hash: d937588baefc3685446e1d4d12cc948b
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=67a1e78a51193558eb19567d
Tags:
dropper joker virus msil
Gathering data
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/38258cca6ecee710d8569840a92106b11f8812a0c35c1d1c63ab93d58053acf4
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/38258cca6ecee710d8569840a92106b11f8812a0c35c1d1c63ab93d58053acf4/
Threat name:
Win32.Ransomware.CryptoJoker
Create hunting rule
Status:
Malicious
First seen:
2025-02-04 06:00:35 UTC
File Type:
Binary (Archive)
Extracted files:
39
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hasyzstoz3trbwcwtbaksiigwepyqevaynob2hddvoj5lactvt2a._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla discovery keylogger spyware stealer trojan
Link:
https://tria.ge/reports/250204-l6bzjavmdn/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System Location Discovery: System Language Discovery
Program crash
Suspicious use of SetThreadContext
Looks up external IP address via web service
Drops startup file
AgentTesla
Agenttesla family
Suspicious use of NtCreateUserProcessOtherParentProcess
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.23
Link:
https://yomi.yoroi.company/submissions/38258cca6ecee710d8569840a92106b11f8812a0c35c1d1c63ab93d58053acf4

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_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:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
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: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 38258cca6ecee710d8569840a92106b11f8812a0c35c1d1c63ab93d58053acf4

(this sample)

AgentTesla

Executable exe 76930f5752402bbffccf8edeb6b07cd1ccf925c8c34853650e367cb2e0bc3e8a

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 76930f5752402bbffccf8edeb6b07cd1ccf925c8c34853650e367cb2e0bc3e8a
  
Dropping
MD5 d937588baefc3685446e1d4d12cc948b

Comments