MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8f458ea339d79921e9e46311ec077fba71534ebe2092bc14a3ac574f284c82a0. 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:	8f458ea339d79921e9e46311ec077fba71534ebe2092bc14a3ac574f284c82a0
SHA3-384 hash:	54fd9f840705ff9e4fbce55a140f570b1a9db5ef426194604a0c439f2124b099bf33b1cc18ba1d01dfc76f3d08ea2ee4
SHA1 hash:	b32a2e81838ebd0d0f8cb3b027427c7779342451
MD5 hash:	15c2c919bec9504b34ec408462085db9
humanhash:	pluto-fruit-six-fruit
File name:	narudžba56645.js
Download:	download sample
Signature	Formbook Alert Create hunting rule
File size:	4'615'309 bytes
First seen:	2026-01-06 07:39:16 UTC
Last seen:	Never
File type:	js
MIME type:	text/plain
ssdeep	192:fsl1jfTxEdVg6k4444444444444444444444444444444444444444444444444n:f6uj
TLSH	T1C426FDA6E274648DC02385C68BF6D004923BF8AF810F8D7FB7121E7D5796FB8159AE11
Magika	javascript
Reporter	abuse_ch
Tags:	FormBook js

Intelligence

---

File Origin

# of uploads :

1

# of downloads :

114

Origin country :

SE

Vendor Threat Intelligence

ACCE Unknown

No detections

CyberFortress Malicious

Verdict:

Malicious

Score:

91.7%

Link:

https://cyber-fortress.com/docs/result/index.php?id=695cbc66e148d42004dfc524

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/695cbc646c350eb0b6f62d03/reports/41887d18-7cb8-400e-9899-040643d2e3d2/overview

Hybrid Analysis Unknown

Verdict:

Unknown

Link:

https://www.hybrid-analysis.com/sample/8f458ea339d79921e9e46311ec077fba71534ebe2092bc14a3ac574f284c82a0

Kaspersky OpenTIP Malicious

Verdict:

Malicious

File Type:

js

First seen:

2026-01-06T03:52:00Z UTC

Last seen:

2026-01-08T05:18:00Z UTC

Hits:

~1000

Detections:

Trojan.Agentb.TCP.C&C Trojan.JS.SAgent.sb HEUR:Trojan.Script.SAgent.gen HEUR:Trojan.Script.Generic

Link:

https://opentip.kaspersky.com/8f458ea339d79921e9e46311ec077fba71534ebe2092bc14a3ac574f284c82a0/results?tab=lookup

Joe Sandbox FormBook

Result

Threat name:

FormBook

Alert

Create hunting rule

Detection:

malicious

Classification:

troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1845344

Signature

.NET source code contains potential unpacker

Antivirus detection for URL or domain

Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)

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: Net WebClient Casing Anomalies

Sigma detected: Potential PowerShell Obfuscation Via Reversed Commands

Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet

Sigma detected: PowerShell Base64 Encoded Reflective Assembly Load

Sigma detected: Suspicious Process Parents

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 Powershell decode and execute

Yara detected Powershell download and execute

Behaviour

Behavior Graph:

Download SVG

Nucleon Malprob Benign

Score:

19%

Verdict:

Benign

File Type:

SCRIPT

Link:

https://malprob.io/report/8f458ea339d79921e9e46311ec077fba71534ebe2092bc14a3ac574f284c82a0

Malva.RE inconclusive

Verdict:

inconclusive

YARA:

1 match(es)

Link:

https://app.malva.re/file/15c2c919bec9504b34ec408462085db9

CERT.PL MWDB

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/8f458ea339d79921e9e46311ec077fba71534ebe2092bc14a3ac574f284c82a0/

Neiki Family.FORMBOOK

Verdict:

Malicious

Threat:

Family.FORMBOOK

Link:

https://tip.neiki.dev/file/8f458ea339d79921e9e46311ec077fba71534ebe2092bc14a3ac574f284c82a0

Spamhaus Hash Blocklist Suspicious file

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=r5cy5izz26msd2pemmi6yb37xjyvgtv6ecjlyffdvrlu6kcmqkqa._file

Hatching Triage Malicious

Result

Malware family:

n/a

Score:

  10/10

Tags:

execution

Link:

https://tria.ge/reports/260106-jh1a4sxrbz/

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

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/8f458ea339d79921e9e46311ec077fba71534ebe2092bc14a3ac574f284c82a0