MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 78ff4f9b0e8638faefdca27a3a8a5fdfd5451af803a1733ef65a3e72e7e13ff4. 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 17 File information Comments

SHA256 hash:	78ff4f9b0e8638faefdca27a3a8a5fdfd5451af803a1733ef65a3e72e7e13ff4
SHA3-384 hash:	588bf525fe1ed3ac26698e78f54992429beab6cc6713d824221c7be53179f629a0845b49ebf88d6f0fd1b77937a6e8c3
SHA1 hash:	b50a84be64d25277d9eeecf33a36dd97d85a4dfc
MD5 hash:	7b8cf8f505697c9598a1976250387519
humanhash:	bluebird-tennessee-nitrogen-crazy
File name:	大成神源询价单 205.js
Download:	download sample
Signature	Formbook Create hunting rule
File size:	3'099'345 bytes
First seen:	2026-09-10 06:03:33 UTC
Last seen:	Never
File type:	js
MIME type:	text/plain
ssdeep	6144:iG4T96qSwLaZaQeqfqInAbgG0rxW1TjB+o6h/9Lq8Jd+TLrl6PgtKk4Wu77Iwmu+:idGTnkkr2xi1RJm
TLSH	T19EE5666433A6FC49351C7321D90D1DBA0F68D064CEE5BF88A4EB98D0649F0CE3796E5A
Magika	javascript
Reporter	abuse_ch
Tags:	FormBook js

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

No detections

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

obfuscated repaired

Link:

https://www.filescan.io/uploads/6aa2485f328844f7c4792b3b/reports/4eb55063-1abc-43f9-ba34-7edb896ef58e/overview

Verdict:

Malicious

Labled as:

GT:JS.ObfPadding.8

Link:

https://www.hybrid-analysis.com/sample/78ff4f9b0e8638faefdca27a3a8a5fdfd5451af803a1733ef65a3e72e7e13ff4

Verdict:

Malicious

File Type:

First seen:

2026-09-09T20:27:00Z UTC

Last seen:

2026-09-10T03:00:00Z UTC

Hits:

~1000

Link:

https://opentip.kaspersky.com/78ff4f9b0e8638faefdca27a3a8a5fdfd5451af803a1733ef65a3e72e7e13ff4/results?tab=lookup

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1971144

Signature

.NET source code contains potential unpacker

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

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

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 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/78ff4f9b0e8638faefdca27a3a8a5fdfd5451af803a1733ef65a3e72e7e13ff4

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/78ff4f9b0e8638faefdca27a3a8a5fdfd5451af803a1733ef65a3e72e7e13ff4/

Threat name:

Script-JS.Trojan.ObfPadding

Status:

Malicious

First seen:

2026-09-10 01:10:46 UTC

File Type:

Text (JavaScript)

AV detection:

7 of 38 (18.42%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=pd7u7gyoqy4pv364uj5dvcs737kukgxyaoqxgpxwli7hfz7bh72a._file

Result

Malware family:

formbook

Score:

10/10

Tags:

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

Link:

https://tria.ge/reports/260910-gsqtba1zdy/

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

System Location Discovery: System Language Discovery

ConfuserEx .NET packer

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/78ff4f9b0e8638faefdca27a3a8a5fdfd5451af803a1733ef65a3e72e7e13ff4

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:	Base64_Encoded_Powershell_Directives Create hunting rule

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:	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_obfuscated_JS_obfuscatorio Create hunting rule
Author:	@imp0rtp3
Description:	Detect JS obfuscation done by the js obfuscator (often malicious)
Reference:	https://obfuscator.io

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

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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