MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d864c817ed02ff63dada3d47f50073aca455674e80fecafc126bc245327b4a6c. 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 24 File information Comments

SHA256 hash:	d864c817ed02ff63dada3d47f50073aca455674e80fecafc126bc245327b4a6c
SHA3-384 hash:	c5c92a8705bc8cce7defea8c484c9b390beb182d074ae2428b5d78a47b2f589020b87a22b3a50f75451243e81a1254f1
SHA1 hash:	3a29adad31a3a674721f66b916fb5780d5bb3627
MD5 hash:	1db02f2856f6d30e381caaa0470b09ef
humanhash:	bacon-friend-mockingbird-monkey
File name:	Shipment ID 3641201362 a.JS
Download:	download sample
Signature	Formbook Create hunting rule
File size:	3'184'758 bytes
First seen:	2026-10-29 09:10:34 UTC
Last seen:	Never
File type:	js
MIME type:	application/javascript
ssdeep	98304:hCnb32M8Rgb0ASu3cj93UbGhbWQR5QPLn4ciTGjP6+5:hCnb32M8RgARusj9UG0QR248PL5
TLSH	T1F6E56B311155E2B22128DF1DC40B69E60FC8BF6B68D1DF3537A8B98F6A49F207798349
Magika	javascript
Reporter	abuse_ch
Tags:	FormBook js

Intelligence

File Origin

# of uploads :

# of downloads :

174

Origin country :

Vendor Threat Intelligence

No detections

Detection(s):

SecuriteInfo.com.Other.Malware-gen.35738749.UNOFFICIAL

Verdict:

Clean

Score:

89.3%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6ae30dbbb175ade21dce7dd1

Tags:

n/a

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-debug dropper evasive masquerade obfuscated packed repaired

Link:

https://www.filescan.io/uploads/6ae30dc259a584ca1e2a3d59/reports/840bd73f-aec7-4b24-ba9b-ba8217630fb4/overview

Verdict:

Malicious

Labled as:

JS/TrojanDropper.ModiLoader

Link:

https://www.hybrid-analysis.com/sample/d864c817ed02ff63dada3d47f50073aca455674e80fecafc126bc245327b4a6c

Verdict:

Malicious

File Type:

First seen:

2026-10-29T03:08:00Z UTC

Last seen:

2026-10-30T07:05:00Z UTC

Hits:

~100

Link:

https://opentip.kaspersky.com/d864c817ed02ff63dada3d47f50073aca455674e80fecafc126bc245327b4a6c/results?tab=lookup

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1994552

Signature

Antivirus detection for URL or domain

Benign windows process drops PE files

Drops PE files to the document folder of the user

Found API chain indicative of debugger detection

Found direct / indirect Syscall (likely to bypass EDR)

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:

Download SVG

Score:

98%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/d864c817ed02ff63dada3d47f50073aca455674e80fecafc126bc245327b4a6c

Verdict:

Malware

YARA:

1 match(es)

Tags:

Batch Command DeObfuscated Javascript JS Emulation Trace PowerShell PowerShell Call Scripting.FileSystemObject T1027 T1059.001 T1059.007 WScript.Shell

Link:

https://app.malva.re/file/1db02f2856f6d30e381caaa0470b09ef

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/d864c817ed02ff63dada3d47f50073aca455674e80fecafc126bc245327b4a6c/

Threat name:

Win32.Trojan.Generic

Status:

Suspicious

First seen:

2026-10-29 09:11:27 UTC

File Type:

Text (JavaScript)

AV detection:

9 of 23 (39.13%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=3bsmqf7nal7whww2hvd7kadtvssfkz2oqd7mv7asnpbekmt3jjwa._file

Verdict:

malicious

Label(s):

Formbook

Link:

https://reports.threatray.com/ec823dab-b747-45d1-b03b-d8f488da5ea5

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook execution rat spyware stealer trojan

Link:

https://tria.ge/reports/261029-k5sp8aax7z/

Behaviour

Modifies registry class

NTFS ADS

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Command and Scripting Interpreter: JavaScript

Enumerates physical storage devices

Executes a command shell one-liner

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/d864c817ed02ff63dada3d47f50073aca455674e80fecafc126bc245327b4a6c

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 Create hunting rule
Author:	DiegoAnalytics
Description:	Detects attempts to inject code into another process across PE, ELF, Mach-O binaries

Rule name:	DebuggerCheck__GlobalFlags Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerCheck__QueryInfo Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerHiding__Active Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerHiding__Thread Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DetectEncryptedVariants Create hunting rule
Author:	Zinyth
Description:	Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded

Rule name:	dgaagas Create hunting rule
Author:	Harshit
Description:	Uses certutil.exe to download a file named test.txt

Rule name:	exploit_any_poppopret Create hunting rule
Author:	Jeff White [karttoon@gmail.com] @noottrak
Description:	Identify POP -> POP -> RET opcodes for quick ROP Gadget creation in target binaries.

Rule name:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

Rule name:	MD5_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for MD5 constants

Rule name:	MULTI_Malware_AgentTesla_ForgeAuto_ed343f78_Extrait Create hunting rule
Author:	Marjoriefort
Description:	Detects AgentTesla (inconnu, etat extrait)

Rule name:	pe_no_import_table Create hunting rule
Description:	Detect pe file that no import table

Rule name:	RIPEMD160_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for RIPEMD-160 constants

Rule name:	SEH__vectored Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	SHA1_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA1 constants

Rule name:	shellcode Create hunting rule
Author:	nex
Description:	Matched shellcode byte patterns

Rule name:	SUSP_VBS_Randomized_ActiveX_Downloader Create hunting rule
Author:	Marjoriefort
Description:	Dropper VBS obfusque : ActiveXObject a identifiant randomise (20 MAJ), SaveToFile, .Run
Reference:	Veille fraicheur 2026-09-14 / grappe VBS randomisee

Rule name:	TH_Win_ETW_Bypass_2025_CYFARE Create hunting rule
Author:	CYFARE
Description:	Windows ETW Bypass Detection Rule - 2025
Reference:	https://cyfare.net/

Rule name:	WIN_Malware_SalatStealer_ForgeAuto_542e717b Create hunting rule
Author:	Marjoriefort
Description:	Detects SalatStealer (pe, etat binaire)

Rule name:	WIN_Malware_Sliver_ForgeAuto_2ddb463c Create hunting rule
Author:	Marjoriefort
Description:	Detects Sliver (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_2ffc3572 Create hunting rule
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 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_ValleyRAT_ForgeAuto_401c5e16 Create hunting rule
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.

No further information available

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