MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7343fde1eb7ed90af6b923297177ae109f2ff9b8e86cee4f5961cf619fad81f4. 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



Formbook


Vendor detections: 12


Intelligence 12 IOCs YARA File information Comments

SHA256 hash: 7343fde1eb7ed90af6b923297177ae109f2ff9b8e86cee4f5961cf619fad81f4
SHA3-384 hash: 3544b8a1a909ca932ed2881d530375e99a9eb2253eac21af198b9a22e48afd6d5e9fcd71fc214a529afab19f27dd5186
SHA1 hash: e21cb666d39ec8153e334ed948a2a1e1351b654f
MD5 hash: 35d69ad8654cf87ed9b9f45134659808
humanhash: jig-yellow-steak-speaker
File name:PO 186016990.js
Download: download sample
Signature Formbook
File size:241'077 bytes
First seen:2025-09-11 06:39:44 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 768:B228zpRqkuShnLvTcIJWibxKUMzY7VjJ4Vlpa:Qdxgwjaa
Threatray 161 similar samples on MalwareBazaar
TLSH T1303421825F0150E426F703A97E67419DE1E8B743089040DB35FDE9986FBCBCC95B2AA7
Magika javascript
Reporter abuse_ch
Tags:FormBook js

Intelligence


File Origin
# of uploads :
1
# of downloads :
105
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.1%
Tags:
obfuscate cryxos xtreme virus
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm base64 fingerprint powershell
Verdict:
Malicious
File Type:
js
First seen:
2025-09-09T03:57:00Z UTC
Last seen:
2025-09-09T03:57:00Z UTC
Hits:
~1000
Detections:
Trojan.JS.SAgent.sb HEUR:Trojan-Downloader.Script.Generic HEUR:Trojan.Script.Generic Trojan.Agentb.TCP.C&C
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Signature
Creates processes via WMI
Found suspicious powershell code related to unpacking or dynamic code loading
Found Tor onion address
Javascript file is likely language aware (will only work on specific systems)
JavaScript source code contains functionality to generate code involving a shell, file or stream
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript starts Powershell (via cmd or directly)
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Gathering data
Threat name:
Script-JS.Trojan.Cryxos
Status:
Malicious
First seen:
2025-09-09 08:42:12 UTC
File Type:
Binary
AV detection:
8 of 24 (33.33%)
Threat level:
  5/5
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook execution rat spyware stealer trojan
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Suspicious use of SetThreadContext
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
Process spawned unexpected child process
Malware Config
Dropper Extraction:
https://archive.org/download/optimized_msi_20250904/optimized_MSI.png
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Comments