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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 429cb021e5531ac786db9d55a5706331a74f9955d4312aacd111073b7b195fd7. 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: 10


Intelligence 10 IOCs YARA 22 File information Comments
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SHA256 hash: 429cb021e5531ac786db9d55a5706331a74f9955d4312aacd111073b7b195fd7
SHA3-384 hash: 03e4990c9e98916e76b10a29c2a490a25389c6b22ab9056452556ce39cb898691eb1fba07aa46e12d0305713cc587a84
SHA1 hash: 1f64c66aaac9bc472009993e51ce099fe0ff0807
MD5 hash: f7fc0aebcec35f6847611b8f058713f1
humanhash: ceiling-batman-five-black
File name:Purchase Order 543 dt.14.10.2026.JS
Download: download sample
Signature Formbook
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File size:3'939'405 bytes
First seen:2026-10-20 11:55:06 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:application/javascript
ssdeep 98304:paDfBdDQgIUhicHgS0dYq/QkFECEXmIZEC4pgeOLMav+RKCD0JlVjknnbWgYcCxY:pab/IUMEgSCYqaRXRWgnLMav+MCDSjkd
TLSH T14706A46D13AA51323326576DD3759C25A42A503B78C1DB20F8DEEA24371CC4FA70BAF6
Magika javascript
Reporter James_inthe_box
Tags:exe FormBook js

Intelligence

File Origin
# of uploads :
1
# of downloads :
121
Origin country :
US US
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6ad756af5a22ac805bd8160e
Tags:
autorun virus shell sage
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug dropper evasive masquerade obfuscated obfuscated packed repaired
Link:
https://www.filescan.io/uploads/6ad756aadf2a3ac7101b2f14/reports/4061984e-9517-4fe0-8c8d-f04555ddc8e1/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/429cb021e5531ac786db9d55a5706331a74f9955d4312aacd111073b7b195fd7
Verdict:
Malicious
File Type:
js
First seen:
2026-10-15T05:35:00Z UTC
Last seen:
2026-10-22T07:37:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/429cb021e5531ac786db9d55a5706331a74f9955d4312aacd111073b7b195fd7/results?tab=lookup
Score:
99%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/429cb021e5531ac786db9d55a5706331a74f9955d4312aacd111073b7b195fd7
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/429cb021e5531ac786db9d55a5706331a74f9955d4312aacd111073b7b195fd7/
Threat name:
Script-JS.Trojan.Heuristic
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Status:
Malicious
First seen:
2026-10-15 13:00:25 UTC
File Type:
Text (JavaScript)
AV detection:
12 of 38 (31.58%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ikolaipfkmnmpbw3tvk2k4ddggtu7gkv2qysvlgrcedtw6yzl7lq._file
Verdict:
malicious
Label(s):
Formbook
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Link:
https://reports.threatray.com/3fad9574-08c3-41ef-b084-dfa0fa8b1303
Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook adware collection defense_evasion discovery execution persistence privilege_escalation rat spyware stealer trojan
Link:
https://tria.ge/reports/261020-n3mb7sg181/
Behaviour
Modifies Internet Explorer settings
Modifies registry class
NTFS ADS
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Executes a command shell one-liner
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
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.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/429cb021e5531ac786db9d55a5706331a74f9955d4312aacd111073b7b195fd7

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: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:MD5_Constants
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Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:MULTI_Malware_AgentTesla_ForgeAuto_ed343f78_Extrait
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Author:Marjoriefort
Description:Detects AgentTesla (inconnu, etat extrait)
Rule name:pe_no_import_table
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Description:Detect pe file that no import table
Rule name:RIPEMD160_Constants
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Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
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: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: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
Create hunting rule
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)

File information

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

Comments