MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ef3642f0f0ac54e1f99126563cc742c212977aae2ec3f3ce2583bf6589f425d5. 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:	ef3642f0f0ac54e1f99126563cc742c212977aae2ec3f3ce2583bf6589f425d5
SHA3-384 hash:	7b23e1f84142a91b1eb07c8866747791e2a3d6289d357ce4df8d3dfa1f35e02fedd42653c4c3c03c98d2ec9213e3e8bf
SHA1 hash:	0c52d392e57f01184fc801dd6b048eea27da6f3a
MD5 hash:	36212cdb5564ccd9db235ffea0023766
humanhash:	mango-india-maine-washington
File name:	WMIEventLogs.js
Download:	download sample
Signature	AsyncRAT Alert Create hunting rule
File size:	4'325'336 bytes
First seen:	2026-02-27 17:00:09 UTC
Last seen:	Never
File type:	js
MIME type:	text/plain
ssdeep	768:1gggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg0:0
TLSH	T1BD161263189003EF90C8A82E50BDA7C1DDE689133EB2DFB7795589DDDC461DCE887226
Magika	javascript
Reporter	abuse_ch
Tags:	AsyncRAT js securityhealthservice-ydns-eu

Intelligence

---

File Origin

# of uploads :

1

# of downloads :

107

Origin country :

SE

Vendor Threat Intelligence

ACCE Unknown

No detections

ClamAV Detected

Detection(s):

SecuriteInfo.com.JS.Packed.164.8384.5605.UNOFFICIAL

Alert

Create hunting rule

CyberFortress Malicious

Verdict:

Malicious

Score:

92.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=69a1cdc0c950ab5d9ab22a26

Tags:

obfuscate xtreme shell

FileScan.IO Malicious

Verdict:

Malicious

Threat level:

  10/10

Confidence:

100%

Tags:

anti-vm base64 fingerprint obfuscated powershell repaired

Link:

https://www.filescan.io/uploads/69a1cdb49eaae84659404b09/reports/27501070-319c-49bc-ba11-a17d665c8fe2/overview

Hybrid Analysis Unknown

Verdict:

Unknown

Link:

https://www.hybrid-analysis.com/sample/ef3642f0f0ac54e1f99126563cc742c212977aae2ec3f3ce2583bf6589f425d5

Kaspersky OpenTIP Malicious

Verdict:

Malicious

File Type:

js

Detections:

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

Link:

https://opentip.kaspersky.com/ef3642f0f0ac54e1f99126563cc742c212977aae2ec3f3ce2583bf6589f425d5/results?tab=lookup

Joe Sandbox AsyncRAT, Dacic, DcRat

Result

Threat name:

AsyncRAT, Dacic, DcRat

Alert

Create hunting rule

Detection:

malicious

Classification:

troj.expl.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1876094

Signature

.NET source code references suspicious native API functions

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Creates processes via WMI

Found malware configuration

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)

Multi AV Scanner detection for submitted file

Sample uses string decryption to hide its real strings

Sigma detected: Base64 Encoded PowerShell Command Detected

Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet

Sigma detected: WScript or CScript Dropper

Suricata IDS alerts for network traffic

Suspicious execution chain found

Suspicious powershell command line found

Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)

Uses dynamic DNS services

Uses known network protocols on non-standard ports

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 AsyncRAT

Yara detected Dacic

Yara detected DcRat

Yara detected Powershell decode and execute

Yara detected Powershell download and execute

Behaviour

Behavior Graph:

Download SVG

Nucleon Malprob Benign

Score:

3%

Verdict:

Benign

File Type:

SCRIPT

Link:

https://malprob.io/report/ef3642f0f0ac54e1f99126563cc742c212977aae2ec3f3ce2583bf6589f425d5

Malva.RE

Gathering data

CERT.PL MWDB dcrat

Detection:

dcrat

Alert

Create hunting rule

Link:

https://mwdb.cert.pl/sample/ef3642f0f0ac54e1f99126563cc742c212977aae2ec3f3ce2583bf6589f425d5/

Neiki Family.REVERSELOADER

Verdict:

Malicious

Threat:

Family.REVERSELOADER

Link:

https://tip.neiki.dev/file/ef3642f0f0ac54e1f99126563cc742c212977aae2ec3f3ce2583bf6589f425d5

ReversingLabs TitaniumCloud Win32.Trojan.Generic

Threat name:

Win32.Trojan.Generic

Alert

Create hunting rule

Status:

Suspicious

First seen:

2026-02-27 00:56:43 UTC

File Type:

Binary

AV detection:

6 of 24 (25.00%)

Threat level:

  5/5

Spamhaus Hash Blocklist Suspicious file

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=543ef4hqvrkod6mrezldzr2cyijjo6vof3b7htrfqo7wlcpuexkq._file

Hatching Triage asyncrat

Result

Malware family:

asyncrat

Alert

Create hunting rule

Score:

  10/10

Tags:

family:asyncrat botnet:oct respaldo discovery execution rat

Link:

https://tria.ge/reports/260227-vh8s2ahw5g/

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

Dropper Extraction:

http://hostphpwindowsapps.ydns.eu:8011/data/optimized_MSI.png

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/ef3642f0f0ac54e1f99126563cc742c212977aae2ec3f3ce2583bf6589f425d5