MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9e3076097c99e0fef6b7bc23763e8af3e8f2e605340d760dc48323cbe1b35e54. 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 15 File information Comments

SHA256 hash:	9e3076097c99e0fef6b7bc23763e8af3e8f2e605340d760dc48323cbe1b35e54
SHA3-384 hash:	42953ede010850d20080695c311fa28f57eb9359efb838e86c932c51ef1cff8a65cf6d929f62a2e5993ef9e6f2dc5912
SHA1 hash:	8673281fb546c14b533f2bc9da39bafd2007429b
MD5 hash:	7a17009a4280e3c5637b36ef751a6eae
humanhash:	colorado-violet-robin-winter
File name:	NYMPH_THETIS_MAIN_VSL_PARTICULARSpdf.js
Download:	download sample
Signature	Formbook Create hunting rule
File size:	3'101'094 bytes
First seen:	2026-08-17 04:06:34 UTC
Last seen:	Never
File type:	js
MIME type:	text/plain
ssdeep	24576:R4Ae9ni70VEFONuZxQbf8er4JaAXvrYvNrj5uQyw09MwPTxxkDnew1zoPrC9X9YJ:R4AG0XakmzEgfy3P6nkDXQEes
TLSH	T197E5F9E222DE578F9A2A379ADA8C4A4C0767C2149EC372E174DF07448F0F48D6994D6F
Magika	javascript
Reporter	threatcat_ch
Tags:	FormBook js

Intelligence

File Origin

# of uploads :

# of downloads :

167

Origin country :

Vendor Threat Intelligence

No detections

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm aspnet_compiler base64 downloader encrypted evasive evasive fingerprint lolbin obfuscated obfuscated powershell reconnaissance repaired

Link:

https://www.filescan.io/uploads/6a8288d1668a8d8aaae3edf3/reports/0e9f1314-2689-4f6d-b9bc-03190903d416/overview

Verdict:

Malicious

Labled as:

Trojan/JS.Obfuscated

Link:

https://www.hybrid-analysis.com/sample/9e3076097c99e0fef6b7bc23763e8af3e8f2e605340d760dc48323cbe1b35e54

Verdict:

Malicious

File Type:

First seen:

2026-08-17T00:30:00Z UTC

Last seen:

2026-08-17T01:03:00Z UTC

Hits:

~100

Link:

https://opentip.kaspersky.com/9e3076097c99e0fef6b7bc23763e8af3e8f2e605340d760dc48323cbe1b35e54/results?tab=lookup

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1958778

Signature

.NET source code contains potential unpacker

Antivirus detection for URL or domain

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

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

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/9e3076097c99e0fef6b7bc23763e8af3e8f2e605340d760dc48323cbe1b35e54

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/9e3076097c99e0fef6b7bc23763e8af3e8f2e605340d760dc48323cbe1b35e54/

Threat name:

Win32.Trojan.Generic

Status:

Suspicious

First seen:

2026-08-17 03:23:58 UTC

File Type:

Text (JavaScript)

AV detection:

10 of 24 (41.67%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=tyyhmcl4thqp55vxxqrxmpuk6pupfzqfgqgxmdoeqmr4xyntlzka._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/260817-epwt2sshmf/

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/9e3076097c99e0fef6b7bc23763e8af3e8f2e605340d760dc48323cbe1b35e54

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:	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.

Malspam

Formbook

js 9e3076097c99e0fef6b7bc23763e8af3e8f2e605340d760dc48323cbe1b35e54

(this sample)

Delivery method

Distributed via e-mail attachment

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