MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8f47c426fffb89ab525c1829e78363e16b2eaa1bb2ac49d8f73de2f22727e48. 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:	b8f47c426fffb89ab525c1829e78363e16b2eaa1bb2ac49d8f73de2f22727e48
SHA3-384 hash:	d86872a25de6af5b76742ed8901c935896277c27d880ef74b0f0bc5b46367b09443639ea09698e422bf032cf505425aa
SHA1 hash:	8ac3a7cf80e43885862c15650c35f6a09a3a3dc0
MD5 hash:	c442e5c8d70217d8027c56ba2e48d08c
humanhash:	saturn-eleven-coffee-johnny
File name:	PO PUR-2504003.js
Download:	download sample
Signature	Formbook Alert Create hunting rule
File size:	2'820'805 bytes
First seen:	2025-12-08 17:04:16 UTC
Last seen:	2025-12-09 09:27:53 UTC
File type:	js
MIME type:	text/plain
ssdeep	192:PPPnMO3+zhKaa1wrmtreQ8di3bS6eqS1arTqfIpp6y3aCBYmy1UMMTQVU5MBs5Sb:ZIbsc7u4
TLSH	T1AAD502671B0C58A4C4FD6650CFC14C99F6928AEF9F13AC0C775B39C9EB3623461B6826
Magika	javascript
Reporter	abuse_ch
Tags:	FormBook js

Intelligence

---

File Origin

# of uploads :

2

# of downloads :

100

Origin country :

SE

Vendor Threat Intelligence

ACCE Unknown

No detections

CyberFortress Malicious

Verdict:

Malicious

Score:

94.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=693705ccdb58e1a2c22ba0e9

Tags:

obfuscate xtreme shell

FileScan.IO Malicious

Verdict:

Malicious

Threat level:

  10/10

Confidence:

100%

Tags:

anti-vm base64 base64 fingerprint obfuscated obfuscated overlay powershell repaired

Link:

https://www.filescan.io/uploads/6937055eff25e40750d7d68f/reports/8832d593-2338-43a9-88f7-2fba7c28ff37/overview

Hybrid Analysis GT:JS.ObfPadding.1

Verdict:

Malicious

Labled as:

GT:JS.ObfPadding.1

Link:

https://www.hybrid-analysis.com/sample/b8f47c426fffb89ab525c1829e78363e16b2eaa1bb2ac49d8f73de2f22727e48

Kaspersky OpenTIP Malicious

Verdict:

Malicious

File Type:

text

First seen:

2025-12-08T05:12:00Z UTC

Last seen:

2025-12-10T15:26:00Z UTC

Hits:

~1000

Detections:

Trojan.JS.SAgent.sb HEUR:Trojan.Script.SAgent.gen HEUR:Trojan.Script.Generic

Link:

https://opentip.kaspersky.com/b8f47c426fffb89ab525c1829e78363e16b2eaa1bb2ac49d8f73de2f22727e48/results?tab=lookup

Joe Sandbox FormBook, PureLog Stealer

Result

Threat name:

FormBook, PureLog Stealer

Alert

Create hunting rule

Detection:

malicious

Classification:

troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1829015

Signature

Antivirus detection for URL or domain

Creates processes via WMI

Injects a PE file into a foreign processes

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)

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: Base64 Encoded PowerShell Command Detected

Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet

Sigma detected: Script Interpreter Execution From Suspicious Folder

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

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 starts Powershell (via cmd or directly)

Yara detected FormBook

Yara detected Generic Downloader

Yara detected MSILDownloaderGeneric

Yara detected Powershell decode and execute

Yara detected Powershell download and execute

Yara detected PureLog Stealer

Behaviour

Behavior Graph:

Download SVG

Nucleon Malprob Benign

Score:

6%

Verdict:

Benign

File Type:

SCRIPT

Link:

https://malprob.io/report/b8f47c426fffb89ab525c1829e78363e16b2eaa1bb2ac49d8f73de2f22727e48

Malva.RE inconclusive

Verdict:

inconclusive

YARA:

1 match(es)

Link:

https://app.malva.re/file/c442e5c8d70217d8027c56ba2e48d08c

CERT.PL MWDB

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/b8f47c426fffb89ab525c1829e78363e16b2eaa1bb2ac49d8f73de2f22727e48/

ReversingLabs TitaniumCloud Win32.Trojan.Egairtigado

Threat name:

Win32.Trojan.Egairtigado

Alert

Create hunting rule

Status:

Malicious

First seen:

2025-12-08 11:04:03 UTC

File Type:

Text (JavaScript)

AV detection:

10 of 37 (27.03%)

Threat level:

  5/5

Spamhaus Hash Blocklist Suspicious file

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=xd2hyqtp764jvnjfygbj46bwhyllf2vbxmvmjhmpoppc6itspzea._file

Hatching Triage Malicious

Result

Malware family:

n/a

Score:

  10/10

Tags:

execution

Link:

https://tria.ge/reports/251208-vl25nayqav/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Command and Scripting Interpreter: JavaScript

Badlisted process makes network request

Command and Scripting Interpreter: PowerShell

Process spawned unexpected child process

Malware Config

Dropper Extraction:

https://bvaco.com/js/panel/uploads/optimized_MSI.png

VMRay FormBook

Malware family:

FormBook

Alert

Create hunting rule

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/b8f47c426fff/report/overview.html

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:

0.55

Link:

https://yomi.yoroi.company/submissions/b8f47c426fffb89ab525c1829e78363e16b2eaa1bb2ac49d8f73de2f22727e48