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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 41cd01acf841aba52ed613f8bd8b4d40ff883e188aa32211e56d78376340b5e6. 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: 9


Intelligence 9 IOCs YARA File information Comments

SHA256 hash: 41cd01acf841aba52ed613f8bd8b4d40ff883e188aa32211e56d78376340b5e6
SHA3-384 hash: 0540ca60cac1d25a3358e4832e2ceb26ff580878abddf6c4fc5579dffaac931d953d6c8a2eef53b41656369532b22987
SHA1 hash: 9708ffd5195f48dac85a424e207cd80322571901
MD5 hash: 611c7d4373cab816bfe897528e90b885
humanhash: music-cola-football-quiet
File name:Doc 0018861308002341q.JS
Download: download sample
Signature Formbook
File size:3'449'334 bytes
First seen:2026-09-14 12:08:23 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 98304:GN3YkxIlCB/9tUzIYfkNkL3m0dz5ZBHwN8KpRd+PH:sYkxt/kfkCz5Z1qFRuH
TLSH T175F51BCA4DEC51A36234DF99400FBFE3C6BA67272D00AB363ABC975A5B68E04335C545
Magika lisp
Reporter abuse_ch
Tags:FormBook js

Intelligence


File Origin
# of uploads :
1
# of downloads :
145
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug dropper evasive obfuscated obfuscated packed repaired
Verdict:
Malicious
File Type:
js
First seen:
2026-09-14T05:33:00Z UTC
Last seen:
2026-09-14T08:55:00Z UTC
Hits:
~100
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Found API chain indicative of debugger detection
Found direct / indirect Syscall (likely to bypass EDR)
JavaScript source code contains call to eval() to check own source code (likely for evading instrumentation)
JavaScript source code contains functionality to generate code involving a shell, file or stream
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)
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
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)
Unusual module load detection (module proxying)
Uses whoami command line tool to query computer and username
Windows Scripting host queries suspicious COM object (likely to drop second stage)
WScript reads language and country specific registry keys (likely country aware script)
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1972649 Sample: Doc 0018861308002341q.JS.js Startdate: 14/09/2026 Architecture: WINDOWS Score: 100 29 www.70092104.xyz 2->29 31 www.narenabynana.com 2->31 33 6 other IPs or domains 2->33 47 Suricata IDS alerts for network traffic 2->47 49 Multi AV Scanner detection for submitted file 2->49 51 Yara detected FormBook 2->51 55 5 other signatures 2->55 10 wscript.exe 1 3 2->10         started        signatures3 53 Performs DNS queries to domains with low reputation 29->53 process4 signatures5 65 Windows Scripting host queries suspicious COM object (likely to drop second stage) 10->65 67 WScript reads language and country specific registry keys (likely country aware script) 10->67 13 MCNIQNLZFPCJLILP.PIF 1 10->13         started        process6 signatures7 69 Found API chain indicative of debugger detection 13->69 71 Modifies the context of a thread in another process (thread injection) 13->71 73 Maps a DLL or memory area into another process 13->73 75 3 other signatures 13->75 16 vcNPjIbzrsXYEz.exe 13->16 injected 19 conhost.exe 13->19         started        process8 signatures9 41 Maps a DLL or memory area into another process 16->41 43 Uses whoami command line tool to query computer and username 16->43 45 Found direct / indirect Syscall (likely to bypass EDR) 16->45 21 whoami.exe 13 16->21         started        process10 signatures11 57 Tries to steal Mail credentials (via file / registry access) 21->57 59 Tries to harvest and steal browser information (history, passwords, etc) 21->59 61 Modifies the context of a thread in another process (thread injection) 21->61 63 3 other signatures 21->63 24 tyfnbYM2L.exe 21->24 injected 27 firefox.exe 21->27         started        process12 dnsIp13 35 www.70092104.xyz 142.0.134.52, 49722, 49723, 49724 PEG-SV-PEGTECHINCUS China 24->35 37 www.narenabynana.com 205.209.126.98, 49716, 80 IS-AS-1-InterserverIncUS United States 24->37 39 3 other IPs or domains 24->39
Gathering data
Gathering data
Result
Malware family:
formbook
Score:
  10/10
Tags:
family:formbook execution rat spyware stealer trojan
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Checks computer location settings
Executes dropped EXE
Family: Formbook
Formbook payload
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