MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4bca79a4aabe36e301f38979d2c3bdff09e791db3b61750b8bc7b7c462d34de. 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

SHA256 hash:	b4bca79a4aabe36e301f38979d2c3bdff09e791db3b61750b8bc7b7c462d34de
SHA3-384 hash:	531b700e22a8f9843d900bb453d8cc96cb5984cb40bff64066b23a4538e869ad5fce9cde591f5ee20240cd4adcebe0c6
SHA1 hash:	16db389171d1892a670cfb5e7dfd0a5c7fdad849
MD5 hash:	84132efea7600b20bc4f9e8a4444a9d1
humanhash:	happy-stream-fix-mango
File name:	PO_Documents_specification.catalog2026.JS
Download:	download sample
Signature	Formbook Alert Create hunting rule
File size:	4'023'985 bytes
First seen:	2026-04-09 07:00:12 UTC
Last seen:	Never
File type:	js
MIME type:	text/plain
ssdeep	98304:0XYsW44ECHxNe50KXI42CxIAzY/eJ/9dx+EUWtHu1NlgMTksl:0bSNeiKH2M7zY/s/9/dHYUMTbl
TLSH	T1AC16A740975CE732B5EDA72CD13EBA30594D600364C9EF2E31B8520976A1E1763ACEE7
Magika	javascript
Reporter	abuse_ch
Tags:	FormBook js

Intelligence

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File Origin

# of uploads :

1

# of downloads :

112

Origin country :

SE

Vendor Threat Intelligence

ACCE Unknown

No detections

ClamAV Detected

Detection(s):

Sanesecurity.Malware.31320.UNOFFICIAL

Alert

Create hunting rule

CyberFortress Clean

Verdict:

Clean

Score:

82.2%

Link:

https://cyber-fortress.com/docs/result/index.php?id=69d55f556a61012f6acfdb72

Tags:

n/a

FileScan.IO Malicious

Verdict:

Malicious

Threat level:

  10/10

Confidence:

100%

Tags:

anti-debug autoit dropper evasive expired-cert fingerprint keylogger obfuscated repaired

Link:

https://www.filescan.io/uploads/69d74e9d5ea31bc68a1a6ab9/reports/8580bf8b-117d-4f93-9de4-e9a6ff57d896/overview

Hybrid Analysis Unknown

Verdict:

Unknown

Link:

https://www.hybrid-analysis.com/sample/b4bca79a4aabe36e301f38979d2c3bdff09e791db3b61750b8bc7b7c462d34de

Kaspersky OpenTIP Malicious

Verdict:

Malicious

File Type:

js

First seen:

2026-04-07T08:55:00Z UTC

Last seen:

2026-04-10T05:33:00Z UTC

Hits:

~100

Detections:

HEUR:Trojan.Script.Generic HEUR:Trojan-Dropper.Script.Generic

Link:

https://opentip.kaspersky.com/b4bca79a4aabe36e301f38979d2c3bdff09e791db3b61750b8bc7b7c462d34de/results?tab=lookup

Joe Sandbox DonutLoader, FormBook

Result

Threat name:

DonutLoader, FormBook

Alert

Create hunting rule

Detection:

malicious

Classification:

troj.evad.spyw

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1895737

Signature

Allocates memory in foreign processes

Creates a thread in another existing process (thread injection)

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

Joe Sandbox ML detected suspicious sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Sigma detected: Execution from Suspicious Folder

Sigma detected: Windows Shell/Scripting Application File Write to Suspicious Folder

Sigma detected: WScript or CScript Dropper

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)

Yara detected DonutLoader

Behaviour

Behavior Graph:

Download SVG

Nucleon Malprob Malware

Score:

96%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/b4bca79a4aabe36e301f38979d2c3bdff09e791db3b61750b8bc7b7c462d34de

Malva.RE

Gathering data

CERT.PL MWDB

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/b4bca79a4aabe36e301f38979d2c3bdff09e791db3b61750b8bc7b7c462d34de/

Neiki Family.DONUTLOADER

Verdict:

Malicious

Threat:

Family.DONUTLOADER

Link:

https://tip.neiki.dev/file/b4bca79a4aabe36e301f38979d2c3bdff09e791db3b61750b8bc7b7c462d34de

ReversingLabs TitaniumCloud Script-JS.Trojan.Malgent

Threat name:

Script-JS.Trojan.Malgent

Alert

Create hunting rule

Status:

Malicious

First seen:

2026-04-07 19:47:32 UTC

File Type:

Text (JavaScript)

AV detection:

8 of 24 (33.33%)

Threat level:

  5/5

Spamhaus Hash Blocklist Suspicious file

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=ws6kpgskvprw4ma7hclz2lb337yj46i5wo3boufyxr5xyrrngtpa._file

Hatching Triage donutloader

Result

Malware family:

donutloader

Alert

Create hunting rule

Score:

  10/10

Tags:

family:donutloader discovery execution loader

Link:

https://tria.ge/reports/260409-hs221sbw2k/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Command and Scripting Interpreter: JavaScript

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Checks computer location settings

Executes dropped EXE

Detects DonutLoader

DonutLoader

Donutloader family

VirusTotal

Please note that we are no longer able to provide a coverage score for Virus Total.

YOROI YOMI Suspicious File

Threat name:

Suspicious File

Score:

0.60

Link:

https://yomi.yoroi.company/submissions/b4bca79a4aabe36e301f38979d2c3bdff09e791db3b61750b8bc7b7c462d34de