MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 152fba31825e5531c40abb01bba888113b8090988fb3b032136c2eac796b00bb. 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 23 File information Comments

SHA256 hash:	152fba31825e5531c40abb01bba888113b8090988fb3b032136c2eac796b00bb
SHA3-384 hash:	0410b040eef1c933417d855826d3a20a35fd8acc0428a1cb9b6ddc795f84b9b249a2a6c885d0b55961a8ccf2e55a303d
SHA1 hash:	559e36a7f7c10f23e7f35bbc1ddb11d1e8bee538
MD5 hash:	af63e00778c43278300d73a8778eecac
humanhash:	arkansas-zebra-august-glucose
File name:	PO - DSM943567.JS
Download:	download sample
Signature	Formbook Create hunting rule
File size:	3'322'630 bytes
First seen:	2026-10-05 08:58:46 UTC
Last seen:	Never
File type:	js
MIME type:	application/javascript
ssdeep	98304:5z7QX3r3IjrnU4mVYsXJzoGavXDLA7+qKenHTmd1bG6L+hqzHn8V:5A3DIfGVYoJzoGavXwX6L5nA
TLSH	T167F57D3C8084FAD2B2E9363AC709659726E170273DD1DB7277EDB9691349F423387A24
Magika	c
Reporter	abuse_ch
Tags:	FormBook js

Intelligence

File Origin

# of uploads :

# of downloads :

169

Origin country :

Vendor Threat Intelligence

No detections

Detection(s):

SecuriteInfo.com.Other.Malware-gen.16533553.UNOFFICIAL

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-debug dropper evasive obfuscated obfuscated packed repaired

Link:

https://www.filescan.io/uploads/6ac366e8e5d8e15c02a8a325/reports/2ffd930f-5b77-477e-b2df-6458fae48f67/overview

Verdict:

Suspicious

Labled as:

JS/TrojanDropper.ModiLoader

Link:

https://www.hybrid-analysis.com/sample/152fba31825e5531c40abb01bba888113b8090988fb3b032136c2eac796b00bb

Verdict:

Malicious

File Type:

First seen:

2026-10-05T04:04:00Z UTC

Last seen:

2026-10-07T07:41:00Z UTC

Hits:

~1000

Detections:

PDM:Trojan.Win32.Generic HEUR:Trojan.Script.Generic HEUR:Trojan-Downloader.Script.Generic

Link:

https://opentip.kaspersky.com/152fba31825e5531c40abb01bba888113b8090988fb3b032136c2eac796b00bb/results?tab=lookup

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1982228

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 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

Queues an APC in another process (thread injection)

Sigma detected: Invoke-Obfuscation CLIP+ Launcher

Sigma detected: Invoke-Obfuscation VAR+ Launcher

Sigma detected: Suspicious Command Patterns In Scheduled Task Creation

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 ipconfig to lookup or modify the Windows network settings

Uses schtasks.exe or at.exe to add and modify task schedules

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

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/152fba31825e5531c40abb01bba888113b8090988fb3b032136c2eac796b00bb/

Threat name:

Script-JS.Trojan.Generic

Status:

Suspicious

First seen:

2026-10-05 08:59:27 UTC

File Type:

Binary

AV detection:

10 of 38 (26.32%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=cux3ummclzktdrakxma3xkeice5ybeeyr6z3amqtnqxky6llac5q._file

Verdict:

malicious

Label(s):

Formbook

Link:

https://reports.threatray.com/0a41c12b-888b-4076-848a-38426d9599a0

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook defense_evasion discovery execution persistence privilege_escalation rat spyware stealer trojan

Link:

https://tria.ge/reports/261005-kxz5bsycrf/

Behaviour

Modifies registry class

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

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

Checks computer location settings

Executes dropped EXE

Family: Formbook

Formbook payload

Malware family:

FormBook

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/152fba31825e/report/overview.html

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/152fba31825e5531c40abb01bba888113b8090988fb3b032136c2eac796b00bb

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:	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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