MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ddd653854d3fefd8deb33a2f989777a73b18a6149f0e31a79e3694487bd8f5fa. 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: 13

Intelligence 13 IOCs YARA 25 File information Comments

SHA256 hash:	ddd653854d3fefd8deb33a2f989777a73b18a6149f0e31a79e3694487bd8f5fa
SHA3-384 hash:	d729a8699bddb3d8fcea3d89ad189a625954b78ee1d6c4b2db1ec8a39912592d410cfe800ddb43299fa5b988a91a3426
SHA1 hash:	74e106468bf41ccde51fec70742be3109257b385
MD5 hash:	4e7ded2cafee4c1dddad19529250c84c
humanhash:	neptune-oregon-music-table
File name:	MEDUWK377101.js
Download:	download sample
Signature	Formbook Create hunting rule
File size:	2'045'440 bytes
First seen:	2026-03-31 10:48:24 UTC
Last seen:	Never
File type:	js
MIME type:	text/plain
ssdeep	24576:s2tUlodtFotyG44PViDQadtZh4C2q+sIwsxxcik9I5Kb/y+tMkmMAjp9O+TkF1Fm:lrFhnYCeup+wFbm
Threatray	379 similar samples on MalwareBazaar
TLSH	T1AD9502118EC46FB8CFEC5A1950FE161E93F10E8A941AB58DEB33BD47AFE7A00411B558
Magika	javascript
Reporter	James_inthe_box
Tags:	exe FormBook js

Intelligence

File Origin

# of uploads :

# of downloads :

133

Origin country :

Vendor Threat Intelligence

Gathering data

Detection(s):

SecuriteInfo.com.JS.DownLoader.9376.2974.10858.UNOFFICIAL

Verdict:

Malicious

Score:

99.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=69cba6ad6363ca5d27f01b47

Tags:

vmdetect virus shell sage

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

anti-vm base64 encrypted obfuscated repaired

Link:

https://www.filescan.io/uploads/69cba6ac972c219c8d734612/reports/f4ef9ea6-1bbe-4c3e-ae6d-856975769061/overview

Verdict:

Malicious

Labled as:

JS/TrojanDownloader.Agent

Link:

https://www.hybrid-analysis.com/sample/ddd653854d3fefd8deb33a2f989777a73b18a6149f0e31a79e3694487bd8f5fa

Verdict:

Malicious

File Type:

First seen:

2026-03-29T21:19:00Z UTC

Last seen:

2026-04-01T08:59:00Z UTC

Hits:

~10000

Detections:

Trojan.Win32.InjectorNetT.s Trojan-Downloader.JS.SLoad.sb PDM:Trojan.Win32.Generic Trojan-Spy.Win32.Noon.sb Trojan.PowerShell.Cobalt.sb Trojan.JS.SAgent.sb HEUR:Trojan.Script.Generic Trojan.Win32.Agent.sb HEUR:Trojan-Downloader.Script.Generic HEUR:Worm.Script.Generic

Link:

https://opentip.kaspersky.com/ddd653854d3fefd8deb33a2f989777a73b18a6149f0e31a79e3694487bd8f5fa/results?tab=lookup

Score:

100%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/ddd653854d3fefd8deb33a2f989777a73b18a6149f0e31a79e3694487bd8f5fa

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/ddd653854d3fefd8deb33a2f989777a73b18a6149f0e31a79e3694487bd8f5fa/

Verdict:

Malicious

Threat:

Family.FORMBOOK

Link:

https://tip.neiki.dev/file/ddd653854d3fefd8deb33a2f989777a73b18a6149f0e31a79e3694487bd8f5fa

Threat name:

Script-JS.Packed.Generic

Status:

Suspicious

First seen:

2026-03-30 00:09:05 UTC

File Type:

Text (JavaScript)

AV detection:

8 of 24 (33.33%)

Threat level:

1/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=3xlfhbknh7x5rxvthixzrf3xu45rrjqut4hddj46g2keq66y6x5a._file

Verdict:

malicious

Label(s):

fantomcrypt

Formbook

a0d7249a0df608c9cee5924acc55ad7f39cff3df7cf0702be47469c094fc23dd

Formbook

d51ea87c715039f7c8902c8698520ff59afc13a4c7ff5ccfa15085d0f1bcdd24

Formbook

da358ee183526c39b4f3d2172b7f21819d815f516c44a6c5c5a398ffe398f5da

Formbook

e568bda9bcb69f15cd39108fbd1dff583a26e1a9eb598240abf9c2b14f43d7aa

Formbook

edf43a512bbd4c90ce45a339181ad3f11f8bf091420a49d8913ac26d84767e39

Formbook

error

Formbook

+ 369 additional samples on MalwareBazaar

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook adware defense_evasion discovery execution rat spyware stealer trojan

Link:

https://tria.ge/reports/260331-mwsd7sct4y/

Behaviour

Kills process with taskkill

Modifies Internet Explorer settings

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Command and Scripting Interpreter: JavaScript

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Checks computer location settings

Badlisted process makes network request

Command and Scripting Interpreter: PowerShell

Formbook

Formbook family

Formbook payload

Malware family:

FormBook

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/ddd653854d3f/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/ddd653854d3fefd8deb33a2f989777a73b18a6149f0e31a79e3694487bd8f5fa

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:	meth_stackstrings Create hunting rule
Author:	Willi Ballenthin

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:	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:	telebot_framework Create hunting rule
Author:	vietdx.mb

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:	vmdetect Create hunting rule
Author:	nex
Description:	Possibly employs anti-virtualization techniques

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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