MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 731487a4cb9733ec62c3df861d44e39ddac523450f9b1d7523902b650c37ab9c. 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: 11


Intelligence 11 IOCs YARA File information Comments

SHA256 hash: 731487a4cb9733ec62c3df861d44e39ddac523450f9b1d7523902b650c37ab9c
SHA3-384 hash: e0b6b11e15644bc45df81c8beb6a56e342c2b4d51c47c6d329b92266c6be134f5a53bcb9f9726db53ad0a662dba1ea23
SHA1 hash: 4f955c5a7f9eeb79f8cf2eb924ffc46c68097bfc
MD5 hash: 7525881260a853a7b9c27802ce058feb
humanhash: sink-three-maryland-washington
File name:WMIEventLogs.js
Download: download sample
Signature AsyncRAT
File size:4'609'553 bytes
First seen:2025-12-25 12:44:06 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 192:jaFlJXxCJ1LcjM/mV6nJYS919Upxg5AMUXRh0ig/dqJS3FS2+++++++++++++++i:jUlw7B
TLSH T15D26176D67097522FC74DB809F77862BBC2032DE66CF4C1D762466C9D7E80602922FE9
Magika javascript
Reporter abuse_ch
Tags:AsyncRAT js

Intelligence


File Origin
# of uploads :
1
# of downloads :
95
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
90.9%
Tags:
obfuscate xtreme shell
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm base64 base64 fingerprint obfuscated obfuscated opendir overlay powershell repaired
Verdict:
Malicious
File Type:
js
First seen:
2025-12-24T12:51:00Z UTC
Last seen:
2025-12-25T23:08:00Z UTC
Hits:
~10
Detections:
Trojan.JS.SAgent.sb HEUR:Trojan.Script.SAgent.gen HEUR:Trojan.Script.Generic
Result
Threat name:
n/a
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
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
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
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive Plug and Play Device Information (via WMI, Win32_PnPEntity, often done to detect virtual machines)
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Net WebClient Casing Anomalies
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded Reflective Assembly Load
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Suspicious powershell command line found
Uses known network protocols on non-standard ports
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript starts Powershell (via cmd or directly)
Yara detected Generic Downloader
Yara detected MSILDownloaderGeneric
Yara detected Powershell decode and execute
Yara detected Powershell download and execute
Behaviour
Behavior Graph:
Verdict:
inconclusive
YARA:
1 match(es)
Threat name:
Win32.Trojan.Generic
Status:
Suspicious
First seen:
2025-12-25 02:08:02 UTC
File Type:
Binary
AV detection:
8 of 24 (33.33%)
Threat level:
  5/5
Result
Malware family:
asyncrat
Score:
  10/10
Tags:
family:asyncrat botnet:oct respaldo 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:
securityhealthservice.ydns.eu:1000
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 731487a4cb9733ec62c3df861d44e39ddac523450f9b1d7523902b650c37ab9c

(this sample)

  
Delivery method
Distributed via web download

Comments