MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d54eb1027281e9a83ca07c521d6db3090320cccf8a5424a2d191cbdc1b54b743. 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: 11


Intelligence 11 IOCs YARA File information Comments

SHA256 hash: d54eb1027281e9a83ca07c521d6db3090320cccf8a5424a2d191cbdc1b54b743
SHA3-384 hash: 9196281188e1f70b0edc859a91f72d02ea54b8fb14100f92f28baa5473a60d7af61e64f81a8ec553ef26ccb5db81f677
SHA1 hash: 5a8158d76c6c77e92402c24d4e172bd261aaa6c1
MD5 hash: a34f561d4fe47c1f19c9d03759abe95b
humanhash: nevada-leopard-leopard-vermont
File name:documents.js
Download: download sample
Signature Formbook
File size:246'861 bytes
First seen:2025-09-11 06:39:26 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 384:23yLbDTcCQXf/AAMAAtAAW3ZUx1AyETnlgAjuomAATafFNhAN6ewAs3ZUx1Ay7wJ:23yLvTcCQXibxKUdzY7VjJ4Vlpa
Threatray 162 similar samples on MalwareBazaar
TLSH T1583498079B54125560F3A207F99FE14EF231776B01458E337EBF86D32FB2892C266A94
Magika javascript
Reporter abuse_ch
Tags:FormBook js

Intelligence


File Origin
# of uploads :
1
# of downloads :
100
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
93.3%
Tags:
cryxos spawn virus agent
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm powershell
Verdict:
Malicious
File Type:
js
First seen:
2025-09-09T04:02:00Z UTC
Last seen:
2025-09-09T04:02:00Z UTC
Hits:
~1000
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Creates processes via WMI
Found Tor onion address
Injects a PE file into a foreign processes
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)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample has a suspicious name (potential lure to open the executable)
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Switches to a custom stack to bypass stack traces
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected FormBook
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1775394 Sample: documents.js Startdate: 11/09/2025 Architecture: WINDOWS Score: 100 48 www.weixinqq1204.xyz 2->48 50 www.movieagency.xyz 2->50 52 10 other IPs or domains 2->52 62 Suricata IDS alerts for network traffic 2->62 64 Malicious sample detected (through community Yara rule) 2->64 66 Antivirus detection for URL or domain 2->66 70 10 other signatures 2->70 12 wscript.exe 1 2->12         started        15 svchost.exe 1 1 2->15         started        signatures3 68 Performs DNS queries to domains with low reputation 50->68 process4 dnsIp5 82 Suspicious powershell command line found 12->82 84 Wscript starts Powershell (via cmd or directly) 12->84 86 Windows Scripting host queries suspicious COM object (likely to drop second stage) 12->86 88 2 other signatures 12->88 18 powershell.exe 14 15 12->18         started        60 127.0.0.1 unknown unknown 15->60 signatures6 process7 dnsIp8 54 boekportret-nl.gt.tc 185.27.134.136, 49686, 80 WILDCARD-ASWildcardUKLimitedGB United Kingdom 18->54 56 archive.org 207.241.224.2, 443, 49683 INTERNET-ARCHIVEUS United States 18->56 58 ia802909.us.archive.org 207.241.233.59, 443, 49684 INTERNET-ARCHIVEUS United States 18->58 72 Found Tor onion address 18->72 74 Writes to foreign memory regions 18->74 76 Injects a PE file into a foreign processes 18->76 22 appidtel.exe 18->22         started        25 conhost.exe 18->25         started        signatures9 process10 signatures11 78 Maps a DLL or memory area into another process 22->78 27 x36Eqj4REMR.exe 22->27 injected process12 signatures13 80 Maps a DLL or memory area into another process 27->80 30 extrac32.exe 13 27->30         started        process14 signatures15 90 Tries to steal Mail credentials (via file / registry access) 30->90 92 Tries to harvest and steal browser information (history, passwords, etc) 30->92 94 Modifies the context of a thread in another process (thread injection) 30->94 96 3 other signatures 30->96 33 zeooGZOa.exe 30->33 injected 36 chrome.exe 30->36         started        38 firefox.exe 30->38         started        process16 dnsIp17 42 www.weixinqq1204.xyz 47.76.172.57, 49696, 49697, 49698 VODAFONE-TRANSIT-ASVodafoneNZLtdNZ United States 33->42 44 www.luetra.site 162.0.239.7, 49708, 49709, 49710 NAMECHEAP-NETUS Canada 33->44 46 2 other IPs or domains 33->46 40 WerFault.exe 4 36->40         started        process18
Gathering data
Threat name:
Script-JS.Trojan.PureLogsStealer
Status:
Malicious
First seen:
2025-09-09 08:20:05 UTC
File Type:
Binary
AV detection:
12 of 36 (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