MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3a219f14e2d3518f74ae0d739ca625446704d7cfca1350749bccd35efcfcd7ca. 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 17 File information Comments

SHA256 hash:	3a219f14e2d3518f74ae0d739ca625446704d7cfca1350749bccd35efcfcd7ca
SHA3-384 hash:	379d2b256b59c8f471335beda3b76d164503b7649f8e7940b4b246494322077e668740c142323f341ddcfcfc68e98868
SHA1 hash:	66a1cd696d6c7592816ab26221abead9921b37f4
MD5 hash:	df44e6ba2f617c2bb8f2bc04259fc438
humanhash:	magazine-zulu-massachusetts-sink
File name:	Aviso de remesa – Copia SWIFT_______________Doc.js
Download:	download sample
Signature	Formbook Create hunting rule
File size:	563'971 bytes
First seen:	2026-09-04 12:52:17 UTC
Last seen:	Never
File type:	js
MIME type:	text/plain
ssdeep	12288:N/Kgz4NPK2ozZgxgFcAbfPYgFAOtXIbWOCSjggZTw:N/KMYPKJFgxgFNPYg3XxOjbw
TLSH	T191C4224816443C7147DA4988E03FBBCF76E8E9681CA4FFD8CA52F9D6045DA8A2536C1F
Magika	javascript
Reporter	abuse_ch
Tags:	FormBook js

Intelligence

File Origin

# of uploads :

# of downloads :

182

Origin country :

Vendor Threat Intelligence

No detections

Detection(s):

SecuriteInfo.com.Other.Malware-gen.65557781.UNOFFICIAL

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

anti-vm encrypted evasive fingerprint masquerade obfuscated obfuscated powershell repaired

Link:

https://www.filescan.io/uploads/6a9abf395fe31a5a7395ebe7/reports/ebc2dc0a-d567-4fac-8285-e640d1d8de9f/overview

Verdict:

Malicious

Labled as:

Trojan.Cryxos.JS

Link:

https://www.hybrid-analysis.com/sample/3a219f14e2d3518f74ae0d739ca625446704d7cfca1350749bccd35efcfcd7ca

Verdict:

Malicious

File Type:

text

First seen:

2026-09-04T09:31:00Z UTC

Last seen:

2026-09-05T11:03:00Z UTC

Hits:

~1000

Link:

https://opentip.kaspersky.com/3a219f14e2d3518f74ae0d739ca625446704d7cfca1350749bccd35efcfcd7ca/results?tab=lookup

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1968621

Signature

Bypasses PowerShell execution policy

Creates processes via WMI

Found direct / indirect Syscall (likely to bypass EDR)

JavaScript source code contains functionality to compute date of execution (likely for evasion)

JavaScript source code contains functionality to generate code involving a shell, file or stream

Loading BitLocker PowerShell Module

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: Suspicious Script Execution From Temp Folder

Sigma detected: WScript or CScript Dropper

Suspicious execution chain 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)

Wscript starts Powershell (via cmd or directly)

Yara detected AntiVM3

Yara detected FormBook

Yara detected Powershell decode and execute

Behaviour

Behavior Graph:

Download SVG

Score:

70%

Verdict:

Susipicious

File Type:

SCRIPT

Link:

https://malprob.io/report/3a219f14e2d3518f74ae0d739ca625446704d7cfca1350749bccd35efcfcd7ca

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/3a219f14e2d3518f74ae0d739ca625446704d7cfca1350749bccd35efcfcd7ca/

Threat name:

Script-JS.Trojan.Cryxos

Status:

Malicious

First seen:

2026-09-04 12:53:20 UTC

File Type:

Text (JavaScript)

AV detection:

5 of 36 (13.89%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=hiqz6fhc2niy65fobvzzzjrfirtqjv6pzijva5e3ztjv57h427fa._file

Verdict:

malicious

Label(s):

Formbook

Link:

https://reports.threatray.com/c3080c07-a62b-49f9-8f16-5fd7b7a0f3e0

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook Execution discovery execution rat spyware stealer trojan

Link:

https://tria.ge/reports/260904-p4qxfsff73/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Command and Scripting Interpreter: JavaScript

Executes a command shell one-liner

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Command and Scripting Interpreter: PowerShell

Temporarily bypasses Powershell execution policy

Family: Formbook

Formbook payload

Process spawned unexpected child process

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/3a219f14e2d3518f74ae0d739ca625446704d7cfca1350749bccd35efcfcd7ca

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:	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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