MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f638581f248958eecd203591eb1def35543d95769dc2a07ac85957e23a7f4f29. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f638581f248958eecd203591eb1def35543d95769dc2a07ac85957e23a7f4f29
SHA3-384 hash: fac5aef2e9097905099afcf119f166c08cd25159a7098f0968ac6cb6153cba06f2e7fdb0abb96f30c11f18167ae3a308
SHA1 hash: 53ec46650b0aa42ae8c313aea80742abcd7b4fad
MD5 hash: a10fb3dbd0942ef5041b8bc551875a01
humanhash: montana-ink-avocado-april
File name:Statement Of Account.pdf.rar
Download: download sample
Signature AgentTesla
Create hunting rule
File size:510'224 bytes
First seen:2023-09-12 07:16:36 UTC
Last seen:Never
File type: rar
MIME type:application/x-rar
ssdeep 12288:L5LR+rx30MX/xK9nEMQ8D5EytEPSBck5neDNF:tR+J3/xlMbEytEe5yF
TLSH T178B4235D8FE402957FF83D30636D60804F36966DAE5AA473865DB02AC36328415DE3EF
TrID 61.5% (.RAR) RAR compressed archive (v5.0) (8000/1)
38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Reporter cocaman
Tags:AgentTesla payment rar


Avatar
cocaman
Malicious email (T1566.001)
From: "Ruan Veiga - Task Logistics | CWB <ruan.veiga@tasklogistics.com.br>" (likely spoofed)
Received: "from tasklogistics.com.br (unknown [194.180.48.78]) "
Date: "12 Sep 2023 04:06:55 +0200"
Subject: "RE: Outstanding payment"
Attachment: "Statement Of Account.pdf.rar"

Intelligence

File Origin
# of uploads :
1
# of downloads :
95
Origin country :
CH CH
File Archive Information

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

File name:Statement Of Account.pdf.exe
File size:523'776 bytes
SHA256 hash: a9bfb74e882c289a3fcbdc104411229292d0127efacffda9beb22206f58630aa
MD5 hash: 536a5d15deaa98806414b48afecf1cb6
MIME type:application/x-dosexec
Signature AgentTesla
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.28929.RarHeur.UNOFFICIAL
Create hunting rule

Result
Verdict:
Unknown
File Type:
PE File
Link:
https://app.docguard.net/f638581f248958eecd203591eb1def35543d95769dc2a07ac85957e23a7f4f29/results/dashboard
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/6500106e7aa68bd3a1f77e8e/reports/189558f0-2add-4e3e-b3e5-82ef9fe7731f/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/f638581f248958eecd203591eb1def35543d95769dc2a07ac85957e23a7f4f29
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/f638581f248958eecd203591eb1def35543d95769dc2a07ac85957e23a7f4f29/
Threat name:
Win32.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2023-09-11 19:56:26 UTC
File Type:
Binary (Archive)
Extracted files:
7
AV detection:
22 of 35 (62.86%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6y4fqhzerfmo5tjagwi6whppgvkd3flwtxbka6wilfl6eot7j4uq._file
Result
Malware family:
agenttesla
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Link:
https://tria.ge/reports/230912-j3tztsec7w/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Checks computer location settings
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/f638581f248958eecd203591eb1def35543d95769dc2a07ac85957e23a7f4f29

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: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: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

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

AgentTesla

rar f638581f248958eecd203591eb1def35543d95769dc2a07ac85957e23a7f4f29

(this sample)

AgentTesla

Executable exe a9bfb74e882c289a3fcbdc104411229292d0127efacffda9beb22206f58630aa

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 a9bfb74e882c289a3fcbdc104411229292d0127efacffda9beb22206f58630aa
  
Dropping
AgentTesla
  
Dropping
MD5 536a5d15deaa98806414b48afecf1cb6

Comments