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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 39a1aef9f24322bc9aeb9c54ca12f2d552849106e89e692f3a881f45f39354d8. 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 30 File information Comments
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SHA256 hash: 39a1aef9f24322bc9aeb9c54ca12f2d552849106e89e692f3a881f45f39354d8
SHA3-384 hash: 5a988377facea8a533beafa6b95bd31f47aefa05ff2a81ffc91c9e584f5134e11084cb55a1fb767fa6c97cd568e70623
SHA1 hash: 22ee2c7ded9fda87db6cd040b42b6b253f89972d
MD5 hash: 4d886df225032db15924bc0e6e0c5e75
humanhash: timing-fish-kilo-alpha
File name:RFQ LIST.js
Download: download sample
Signature Formbook
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File size:2'693'822 bytes
First seen:2026-10-13 22:08:24 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:application/javascript
ssdeep 49152:S8oBYFf/LJaGE1BXc7eLJ3MO8yau7x/I9Y:C
TLSH T131C51257E88B9F9B401851991A648D0AA837695F217473C034CFEFAEE35CD30637EA1B
Magika javascript
Reporter threatcat_ch
Tags:FormBook js

Intelligence

File Origin
# of uploads :
1
# of downloads :
209
Origin country :
CH CH
Vendor Threat Intelligence
No detections
Detection(s):
Sanesecurity.Malware.32732.JsHeur.UNOFFICIAL
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Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6ad13156f4e17c78f715f034
Tags:
vmdetect virus shell sage
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm cscript encrypted fingerprint lolbin obfuscated repaired wscript
Link:
https://www.filescan.io/uploads/6aceac0dca1d7071dabbaf1d/reports/a0790dc3-856c-4a67-9b3a-4365e8dce95c/overview
Verdict:
Malicious
Labled as:
JS.FormBook.1.Generic
Link:
https://www.hybrid-analysis.com/sample/39a1aef9f24322bc9aeb9c54ca12f2d552849106e89e692f3a881f45f39354d8
Verdict:
Malicious
File Type:
js
First seen:
2026-10-13T06:57:00Z UTC
Last seen:
2026-10-15T14:40:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/39a1aef9f24322bc9aeb9c54ca12f2d552849106e89e692f3a881f45f39354d8/results?tab=lookup
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1986760
Signature
Bypasses PowerShell execution policy
Found direct / indirect Syscall (likely to bypass EDR)
Injects a PE file into a foreign processes
JavaScript file contains suspicious strings
JavaScript source code contains functionality to generate code involving a shell, file or stream
JScript performs obfuscated calls to suspicious functions
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 uses process hollowing technique
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)
Unusual module load detection (module proxying)
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 decode and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1986760 Sample: RFQ LIST.js Startdate: 14/10/2026 Architecture: WINDOWS Score: 100 35 www.werdef.xyz 2->35 37 www.wocareb.sbs 2->37 39 7 other IPs or domains 2->39 61 Suricata IDS alerts for network traffic 2->61 63 Malicious sample detected (through community Yara rule) 2->63 65 Multi AV Scanner detection for submitted file 2->65 69 6 other signatures 2->69 8 wscript.exe 2 2->8         started        12 YanglDLZ6cH3u.exe 2->12 injected 14 HkIfHtmBJ.exe 2->14 injected signatures3 67 Performs DNS queries to domains with low reputation 35->67 process4 dnsIp5 33 C:\Temp\ps_VfjdLLgglt6V_1791929625039.ps1, ASCII 8->33 dropped 79 JScript performs obfuscated calls to suspicious functions 8->79 81 Suspicious powershell command line found 8->81 83 Wscript starts Powershell (via cmd or directly) 8->83 89 3 other signatures 8->89 17 powershell.exe 16 8->17         started        85 Maps a DLL or memory area into another process 12->85 87 Found direct / indirect Syscall (likely to bypass EDR) 12->87 20 dialer.exe 13 12->20         started        41 www.werdef.xyz 159.198.70.130, 49730, 49731, 49732 NAMECHEAP-NET-NamecheapIncUS United States 14->41 43 www.gangseo-noraebang.com 121.254.178.253, 49741, 49742, 49743 LGDACOMLGDACOMCorporationKR South Korea 14->43 45 2 other IPs or domains 14->45 file6 signatures7 process8 signatures9 47 Writes to foreign memory regions 17->47 49 Sample uses process hollowing technique 17->49 51 Injects a PE file into a foreign processes 17->51 22 aspnet_compiler.exe 17->22         started        25 conhost.exe 17->25         started        27 aspnet_compiler.exe 17->27         started        31 16 other processes 17->31 53 Tries to steal Mail credentials (via file / registry access) 20->53 55 Tries to harvest and steal browser information (history, passwords, etc) 20->55 57 Modifies the context of a thread in another process (thread injection) 20->57 59 3 other signatures 20->59 29 firefox.exe 20->29         started        process10 signatures11 71 Modifies the context of a thread in another process (thread injection) 22->71 73 Maps a DLL or memory area into another process 22->73 75 Queues an APC in another process (thread injection) 22->75 77 3 other signatures 22->77
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/39a1aef9f24322bc9aeb9c54ca12f2d552849106e89e692f3a881f45f39354d8
Verdict:
Malware
YARA:
2 match(es)
Tags:
DeObfuscated Javascript PowerShell T1027 T1059.001 T1059.007
Link:
https://app.malva.re/file/4d886df225032db15924bc0e6e0c5e75
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/39a1aef9f24322bc9aeb9c54ca12f2d552849106e89e692f3a881f45f39354d8/
Threat name:
Script-JS.Trojan.Multiverze
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Status:
Malicious
First seen:
2026-10-13 12:56:18 UTC
File Type:
Text (HTML)
AV detection:
14 of 38 (36.84%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=hgq256psimrlzgxltrkmuexs2vjijeig5cpgslz2rapul44tktma._file
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook adware collection defense_evasion discovery execution privilege_escalation rat spyware stealer trojan
Link:
https://tria.ge/reports/261013-12w68s1x5j/
Behaviour
Kills process with taskkill
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Reads the TCP/IP host and domain name from the registry
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Checks computer location settings
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Family: Formbook
Formbook payload
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/39a1aef9f24322bc9aeb9c54ca12f2d552849106e89e692f3a881f45f39354d8

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:CP_Script_Inject_Detector
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Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:DebuggerCheck__GlobalFlags
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Thread
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DetectEncryptedVariants
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Author:Zinyth
Description:Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded
Rule name:dgaaga
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Author:Harshit
Description:Detects suspicious PowerShell or registry activity
Rule name:dgaagas
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Author:Harshit
Description:Uses certutil.exe to download a file named test.txt
Rule name:golang_bin_JCorn_CSC846
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Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:INDICATOR_SUSPICIOUS_JS_WMI_ExecQuery
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Author:ditekSHen
Description:Detects JS potentially executing WMI queries
Rule name:MD5_Constants
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Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:pe_no_import_table
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Description:Detect pe file that no import table
Rule name:RANSOMWARE
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Author:ToroGuitar
Rule name:RIPEMD160_Constants
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Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SCRIPT_Dropper_Unknown_ForgeAuto_aaa464f7
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Author:Marjoriefort
Description:Detects Unknown (script_js, etat binaire)
Rule name:SEH__vectored
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Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:SHA1_Constants
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Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
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Author:nex
Description:Matched shellcode byte patterns
Rule name:SUSP_Script_PowerShell_Hidden_Launcher
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Author:Marjoriefort
Description:Script (JS/VBS) lancant PowerShell en mode furtif - dropper frais MalwareBazaar
Reference:Veille fraicheur 2026-09-14 / cluster misses web
Rule name:Sus_CMD_Powershell_Usage
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Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:telebot_framework
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Author:vietdx.mb
Rule name:TH_Win_ETW_Bypass_2025_CYFARE
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Author:CYFARE
Description:Windows ETW Bypass Detection Rule - 2025
Reference:https://cyfare.net/
Rule name:vmdetect
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Author:nex
Description:Possibly employs anti-virtualization techniques
Rule name:WIN_Malware_SalatStealer_ForgeAuto_542e717b
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Author:Marjoriefort
Description:Detects SalatStealer (pe, etat binaire)
Rule name:WIN_Malware_Sliver_ForgeAuto_2ddb463c
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Author:Marjoriefort
Description:Detects Sliver (pe, etat binaire)
Rule name:WIN_Malware_Unknown_ForgeAuto_2ffc3572
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Author:Marjoriefort
Description:Detects Unknown (pe, etat binaire)
Rule name:WIN_Malware_Unknown_ForgeAuto_5001c94c
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Author:Marjoriefort
Description:Detects Unknown (pe, etat binaire)
Rule name:WIN_Malware_Unknown_ForgeAuto_ce8c5b46
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Author:Marjoriefort
Description:Detects Unknown (pe, etat binaire)
Rule name:WIN_Malware_ValleyRAT_ForgeAuto_401c5e16
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Author:Marjoriefort
Description:Detects ValleyRAT (pe, etat binaire)
Rule name:Win_Ransomware_LockBit5_Consolidated
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Author:RussianPanda, S2W, ransomware.live (Consolidated)
Description:Consolidated rule to detect LockBit 5.0 (Erebus) Ransomware payloads and notes

File information

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

Malspam

Formbook

Java Script (JS) js 39a1aef9f24322bc9aeb9c54ca12f2d552849106e89e692f3a881f45f39354d8

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments