MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 399390fc1381845ca3d505b545fc1677f48fdf9c119fbdbeb5ffff2ea3d09f39. 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:	399390fc1381845ca3d505b545fc1677f48fdf9c119fbdbeb5ffff2ea3d09f39
SHA3-384 hash:	e4364fdde61eb98e00b3f37a1aa52757e39b328aea8f62cccc976e6b0680c14fa0c8ce92d40400a164f8c987b24f6546
SHA1 hash:	9649046544fea1165d0969a56b6398e2e40b1efb
MD5 hash:	731e1ed9f6b124979879fd0b3adb1d39
humanhash:	mirror-california-quebec-foxtrot
File name:	PO-G500B200.js
Download:	download sample
Signature	MassLogger Alert Create hunting rule
File size:	2'625'304 bytes
First seen:	2026-08-14 06:26:46 UTC
Last seen:	Never
File type:	js
MIME type:	text/plain
ssdeep	24576:6zlNeWZKU5RKYkGMeFzrUHynaCKGuOlUWWVi0zuMppGJz9N6l/e1BAw7Ej+l0nHE:gVbKymKlO6MMh404IVEynTDiVO3
TLSH	T10AC5419D39CCA1396016EE42CE6D7922582FBF2F5F4F0F86236D868C0F9125871579CA
TrID	66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1) 33.3% (.MP3) MP3 audio (1000/1)
Magika	autohotkey
Reporter	threatcat_ch
Tags:	js MassLogger

Intelligence

---

File Origin

# of uploads :

1

# of downloads :

158

Origin country :

CH

Vendor Threat Intelligence

ACCE Unknown

No detections

ClamAV Detected

Detection(s):

SecuriteInfo.com.JS.Muldrop.1389.21442.11156.UNOFFICIAL

Alert

Create hunting rule

FileScan.IO Malicious

Verdict:

Malicious

Threat level:

  10/10

Confidence:

100%

Tags:

aes base64 base64 crypto downloader evasive lolbin obfuscated overlay persistence powershell repaired wscript

Link:

https://www.filescan.io/uploads/6a7eb5539cef1a7ee4546ea3/reports/a2d33f60-918b-4e45-9a44-811fc043ac86/overview

Hybrid Analysis JS/Agent.EVW

Verdict:

Suspicious

Labled as:

JS/Agent.EVW

Link:

https://www.hybrid-analysis.com/sample/399390fc1381845ca3d505b545fc1677f48fdf9c119fbdbeb5ffff2ea3d09f39

Kaspersky OpenTIP Malicious

Verdict:

Malicious

File Type:

js

First seen:

2026-08-14T00:34:00Z UTC

Last seen:

2026-08-16T04:36:00Z UTC

Hits:

~10000

Link:

https://opentip.kaspersky.com/399390fc1381845ca3d505b545fc1677f48fdf9c119fbdbeb5ffff2ea3d09f39/results?tab=lookup

Joe Sandbox MSIL Logger, MassLogger RAT

Result

Threat name:

MSIL Logger, MassLogger RAT

Alert

Create hunting rule

Detection:

malicious

Classification:

troj.spyw.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1958050

Signature

.NET source code references suspicious native API functions

AI detected malicious Powershell script

Bypasses PowerShell execution policy

Contains functionality to capture screen (.Net source)

Contains functionality to log keystrokes (.Net Source)

Found malware configuration

Installs a global keyboard hook

JScript performs obfuscated calls to suspicious functions

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Potential evasive JS / VBS script found (domain check)

Sigma detected: Script Interpreter Execution From Suspicious Folder

Sigma detected: Suspicious PowerShell Parameter Substring

Sigma detected: Suspicious Script Execution From Temp Folder

Sigma detected: WScript or CScript Dropper

Sigma detected: WScript or CScript Dropper - File

Suspicious execution chain found

Suspicious powershell command line found

Tries to detect the country of the analysis system (by using the IP)

Tries to harvest and steal browser information (history, passwords, etc)

Windows Scripting host queries suspicious COM object (likely to drop second stage)

Windows Shell Script Host drops VBS files

Wscript called in batch mode (surpress errors)

WScript reads language and country specific registry keys (likely country aware script)

Wscript starts Powershell (via cmd or directly)

Yara detected MassLogger RAT

Yara detected MSIL Logger

Yara detected Telegram RAT

Behaviour

Behavior Graph:

Download SVG

Nucleon Malprob Susipicious

Score:

43%

Verdict:

Susipicious

File Type:

SCRIPT

Link:

https://malprob.io/report/399390fc1381845ca3d505b545fc1677f48fdf9c119fbdbeb5ffff2ea3d09f39

Malva.RE

Gathering data

CERT.PL MWDB

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/399390fc1381845ca3d505b545fc1677f48fdf9c119fbdbeb5ffff2ea3d09f39/

ReversingLabs TitaniumCloud Script-JS.Trojan.Heuristic

Threat name:

Script-JS.Trojan.Heuristic

Alert

Create hunting rule

Status:

Malicious

First seen:

2026-08-14 06:27:41 UTC

File Type:

Text (JavaScript)

AV detection:

8 of 24 (33.33%)

Threat level:

  2/5

Spamhaus Hash Blocklist Suspicious file

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=hgjzb7atqgcfzi6vaw2ul7awo72i7x44cgp33pvv777s5i6qt44q._file

Hatching Triage masslogger

Result

Malware family:

masslogger

Alert

Create hunting rule

Score:

  10/10

Tags:

family:masslogger collection discovery execution persistence spyware stealer

Link:

https://tria.ge/reports/260814-g72jcsej8v/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

outlook_office_path

outlook_win_path

Command and Scripting Interpreter: JavaScript

Enumerates physical storage devices

Executes a VBScript file via the Windows Script Host.

Accesses Microsoft Outlook profiles

Looks up external IP address via web service

Checks computer location settings

Badlisted process makes network request

Command and Scripting Interpreter: PowerShell

Family: MassLogger

VirusTotal

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

YOROI YOMI Malicious File

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/399390fc1381845ca3d505b545fc1677f48fdf9c119fbdbeb5ffff2ea3d09f39