MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3b40cbd70c8f42a757ebb650ad908de05dbc647ade92e773cb17e62ea5c0bac1. 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



AsyncRAT


Vendor detections: 12


Intelligence 12 IOCs YARA File information Comments

SHA256 hash: 3b40cbd70c8f42a757ebb650ad908de05dbc647ade92e773cb17e62ea5c0bac1
SHA3-384 hash: ae9ea0dffeddd37b2200c27f03abaa96c782ee1a782d08aa282f36c88cdddababd192c4bd3b336d337e14ff7788474e6
SHA1 hash: 36c483cf4e2bee61342b4ebd66dcbe0fe0cc5505
MD5 hash: e1bac1f381bb857a877124ae86281984
humanhash: alabama-artist-coffee-artist
File name:WMIEventLogs.js
Download: download sample
Signature AsyncRAT
File size:465'218 bytes
First seen:2025-09-03 18:14:22 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 6144:OusDDBfyx5+1jdUrSLk/6uv5usDDBfyx5+1jdUrSLk/6uvh:/shyx5L0k/6fshyx5L0k/6A
TLSH T134A48894E5A37E91ADD0CA671739EAFCA93B0572BDCB1A30C3FCD518D07019B4A80D66
Magika scss
Reporter abuse_ch
Tags:AsyncRAT js

Intelligence


File Origin
# of uploads :
1
# of downloads :
100
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
91.7%
Tags:
obfuscate xtreme spawn
Verdict:
Malicious
File Type:
js
First seen:
2025-09-03T13:56:00Z UTC
Last seen:
2025-09-03T13:56:00Z UTC
Hits:
~10
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl.evad
Score:
100 / 100
Signature
Creates processes via WMI
Found suspicious powershell code related to unpacking or dynamic code loading
Found Tor onion address
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: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript starts Powershell (via cmd or directly)
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Gathering data
Threat name:
Script-JS.Trojan.Malgent
Status:
Malicious
First seen:
2025-09-03 18:16:35 UTC
File Type:
Text (JavaScript)
AV detection:
8 of 24 (33.33%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat botnet:respaldo sept discovery execution rat
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
AsyncRat
Asyncrat family
Process spawned unexpected child process
Malware Config
C2 Extraction:
startmenuexperiencehostw.ydns.eu:1000
Dropper Extraction:
https://archive.org/download/optimized_msi_20250821/optimized_MSI.png
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

AsyncRAT

Java Script (JS) js 3b40cbd70c8f42a757ebb650ad908de05dbc647ade92e773cb17e62ea5c0bac1

(this sample)

  
Delivery method
Distributed via web download

Comments