MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0bc73de0da28e7160e3e00c2a2305ea4e4bdf35fb471e42d3da1bd5483b2f85f. 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 27 File information Comments

SHA256 hash:	0bc73de0da28e7160e3e00c2a2305ea4e4bdf35fb471e42d3da1bd5483b2f85f
SHA3-384 hash:	b02c0a8525523defe5bfca7cb115590f66f1029b388a87c9ea7d3cc841cd2a083d4d3719105705699cb9e8ebc1ca4ddb
SHA1 hash:	b843fc37e8c0cdaa465c7443d629fd5ada52f5b0
MD5 hash:	400eb336caa3523daca8b0ac9b136d1f
humanhash:	batman-nevada-wolfram-twenty
File name:	PO_22042026_ORDER_DETAILSpdf.js
Download:	download sample
Signature	Formbook Create hunting rule
File size:	1'026'341 bytes
First seen:	2026-10-16 01:08:35 UTC
Last seen:	Never
File type:	js
MIME type:	application/javascript
ssdeep	24576:KgON8qrQjsqRohcrQCIqWhv3Po71SnU035v9FOcuNM:EzxF4M
TLSH	T1CD250209C6465F8A0DB9D06685414EC17C366537D39A71C0318FAAA7D3ADBFB103F29B
Magika	javascript
Reporter	threatcat_ch
Tags:	FormBook js

Intelligence

File Origin

# of uploads :

# of downloads :

207

Origin country :

Vendor Threat Intelligence

No detections

Verdict:

Malicious

Score:

94.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6ad1b734f4e17c78f7161f4c

Tags:

phishing shell sage hype

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm cscript encrypted evasive fingerprint lolbin masquerade obfuscated powershell repaired taskkill wscript

Link:

https://www.filescan.io/uploads/6ad1793bdfe9faff7738a506/reports/ecffdaee-2304-4485-88c9-cab07c15dac2/overview

Verdict:

Malicious

Labled as:

GT:JS.Loader.31

Link:

https://www.hybrid-analysis.com/sample/0bc73de0da28e7160e3e00c2a2305ea4e4bdf35fb471e42d3da1bd5483b2f85f

Verdict:

Malicious

File Type:

First seen:

2026-10-15T21:44:00Z UTC

Last seen:

2026-10-17T23:32:00Z UTC

Hits:

~10000

Link:

https://opentip.kaspersky.com/0bc73de0da28e7160e3e00c2a2305ea4e4bdf35fb471e42d3da1bd5483b2f85f/results?tab=lookup

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1987834

Signature

AI detected malicious Powershell script

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

Queues an APC in another process (thread injection)

Sigma detected: WScript or CScript Dropper

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 reads language and country specific registry keys (likely country aware script)

Wscript starts Powershell (via cmd or directly)

Yara detected FormBook

Yara detected Powershell decode and execute

Behaviour

Behavior Graph:

Download SVG

Score:

99%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/0bc73de0da28e7160e3e00c2a2305ea4e4bdf35fb471e42d3da1bd5483b2f85f

Verdict:

Malware

YARA:

2 match(es)

Tags:

DeObfuscated Javascript PowerShell T1027 T1059.001 T1059.007

Link:

https://app.malva.re/file/400eb336caa3523daca8b0ac9b136d1f

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/0bc73de0da28e7160e3e00c2a2305ea4e4bdf35fb471e42d3da1bd5483b2f85f/

Threat name:

Script-JS.Backdoor.FormBook

Status:

Malicious

First seen:

2026-10-16 01:09:29 UTC

File Type:

Text (JavaScript)

AV detection:

6 of 38 (15.79%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=bpdt3yg2fdtrmdr6adbkemc6utsl3427wry6ilj5ug6vja5s7bpq._file

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook adware collection defense_evasion discovery execution privilege_escalation rat spyware stealer trojan

Link:

https://tria.ge/reports/261016-bkpy6afs7t/

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

System Network Configuration Discovery: Internet Connection 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/0bc73de0da28e7160e3e00c2a2305ea4e4bdf35fb471e42d3da1bd5483b2f85f

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:	dgaaga Create hunting rule
Author:	Harshit
Description:	Detects suspicious PowerShell or registry activity

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:	INDICATOR_SUSPICIOUS_JS_WMI_ExecQuery Create hunting rule
Author:	ditekSHen
Description:	Detects JS potentially executing WMI queries

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

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

Rule name:	RANSOMWARE Create hunting rule
Author:	ToroGuitar

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

Rule name:	SCRIPT_Dropper_Unknown_ForgeAuto_aaa464f7 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (script_js, etat binaire)

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_Script_PowerShell_Hidden_Launcher Create hunting rule
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 Create hunting rule
Author:	XiAnzheng
Description:	May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

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.

Malspam

Formbook

js 0bc73de0da28e7160e3e00c2a2305ea4e4bdf35fb471e42d3da1bd5483b2f85f

(this sample)

Delivery method

Distributed via e-mail attachment

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