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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4d11737fffa17df49c0e51ca57725522c80e666121471f60eede1589b5e1be5a. 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


XWorm


Vendor detections: 9


Intelligence 9 IOCs YARA 17 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4d11737fffa17df49c0e51ca57725522c80e666121471f60eede1589b5e1be5a
SHA3-384 hash: 638e569984922a3368f3c80a65351fd1bf76f336f8cb8aa865987fab2b08a98c8e66589746e8eda423e35bf58e80c4cd
SHA1 hash: 26b94f74437e55d1e643447f659dd5f0461380f0
MD5 hash: bde6d4b3d143226cfa3cc33756983668
humanhash: may-hawaii-table-burger
File name:F12890.js
Download: download sample
Signature XWorm
Create hunting rule
File size:733'086 bytes
First seen:2026-09-14 17:14:16 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 1536:uBML8wxtEsmbWyknv6tW7PQFMnOTLMcSuLcTJRrLpVd4lq0EDe1n1+dSWg4FFMVM:swUeX
TLSH T1A3F4B2C7678C07EDAB988CDD454C3A5754F7C16A3C2E128DEDE14A17B43EE207A26A70
Magika javascript
Reporter abuse_ch
Tags:js xworm

Intelligence

File Origin
# of uploads :
1
# of downloads :
58
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
lolbin repaired wscript
Link:
https://www.filescan.io/uploads/6aa82b6fb75c308656c3be2a/reports/a990747f-d131-4581-bab7-c0e2d0e7bd87/overview
Verdict:
Suspicious
Labled as:
SVM:TrojanDownloader/JS.MalBehav.gen
Link:
https://www.hybrid-analysis.com/sample/4d11737fffa17df49c0e51ca57725522c80e666121471f60eede1589b5e1be5a
Verdict:
Malicious
File Type:
js
First seen:
2026-09-14T13:13:00Z UTC
Last seen:
2026-09-14T14:02:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/4d11737fffa17df49c0e51ca57725522c80e666121471f60eede1589b5e1be5a/results?tab=lookup
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1972824
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
AI detected malicious Powershell script
Antivirus detection for dropped file
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
JScript performs obfuscated calls to suspicious functions
Malicious sample detected (through community Yara rule)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Tries to harvest and steal browser information (history, passwords, etc)
Uses schtasks.exe or at.exe to add and modify task schedules
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 AntiVM3
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1972824 Sample: F12890.js Startdate: 14/09/2026 Architecture: WINDOWS Score: 100 62 www.google.com 2->62 64 pki-goog.l.google.com 2->64 66 8 other IPs or domains 2->66 78 Suricata IDS alerts for network traffic 2->78 80 Found malware configuration 2->80 82 Malicious sample detected (through community Yara rule) 2->82 84 11 other signatures 2->84 10 wscript.exe 1 4 2->10         started        14 XWormClient.exe 2 2->14         started        16 XWormClient.exe 1 2->16         started        18 2 other processes 2->18 signatures3 process4 file5 56 C:\Users\user\AppData\...\policy439340.dat, ASCII 10->56 dropped 58 C:\Users\user\AppData\...\policy326076.dat, ASCII 10->58 dropped 60 C:\Users\user\AppData\...\policy212812.ps1, ASCII 10->60 dropped 92 JScript performs obfuscated calls to suspicious functions 10->92 94 Wscript starts Powershell (via cmd or directly) 10->94 96 Bypasses PowerShell execution policy 10->96 98 3 other signatures 10->98 20 powershell.exe 17 10->20         started        23 conhost.exe 14->23         started        25 conhost.exe 16->25         started        27 conhost.exe 18->27         started        29 conhost.exe 18->29         started        signatures6 process7 signatures8 86 Writes to foreign memory regions 20->86 88 Injects a PE file into a foreign processes 20->88 31 MSBuild.exe 2 6 20->31         started        36 conhost.exe 20->36         started        process9 dnsIp10 68 158.94.210.194, 49746, 6000 OMEGATECH-ASSC Netherlands 31->68 52 C:\Users\user\AppData\...\XWormClient.exe, PE32 31->52 dropped 70 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 31->70 72 Uses schtasks.exe or at.exe to add and modify task schedules 31->72 74 Tries to harvest and steal browser information (history, passwords, etc) 31->74 76 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 31->76 38 MSBuild.exe 31->38         started        41 csc.exe 4 31->41         started        44 schtasks.exe 1 31->44         started        file11 signatures12 process13 file14 90 Antivirus detection for dropped file 38->90 54 C:\Users\user\AppData\Local\...\MSBuild.exe, PE32 41->54 dropped 46 conhost.exe 41->46         started        48 cvtres.exe 1 41->48         started        50 conhost.exe 44->50         started        signatures15 process16
Score:
31%
Verdict:
Susipicious
File Type:
SCRIPT
Link:
https://malprob.io/report/4d11737fffa17df49c0e51ca57725522c80e666121471f60eede1589b5e1be5a
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4d11737fffa17df49c0e51ca57725522c80e666121471f60eede1589b5e1be5a/
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=juixg777uf67jhaokhffo4svelea4ztbefdr6yho3ykytnpbxzna._file
Verdict:
malicious
Label(s):
XWorm
Create hunting rule
Link:
https://reports.threatray.com/f8035073-1650-4314-9dea-313c55ede69f
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm discovery execution persistence privilege_escalation rat trojan
Link:
https://tria.ge/reports/260914-vspsxafn7v/
Behaviour
Scheduled Task/Job: Scheduled Task
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
Adds Run key to start application
Creates a file in the Startup directory
Executes dropped EXE
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Family: Xworm
Process spawned unexpected child process
Malware Config
C2 Extraction:
158.94.210.194:6000
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:ByteCode_MSIL_Backdoor_AsyncRAT
Create hunting rule
Author:ReversingLabs
Description:Yara rule that detects AsyncRAT backdoor.
Rule name:Detect_PowerShell_Obfuscation
Create hunting rule
Author:daniyyell
Description:Detects obfuscated PowerShell commands commonly used in malicious scripts.
Rule name:Disable_Defender
Create hunting rule
Author:iam-py-test
Description:Detect files disabling or modifying Windows Defender, Windows Firewall, or Microsoft Smartscreen
Rule name:INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
Create hunting rule
Author:ditekSHen
Description:Detects Windows executables referencing non-Windows User-Agents
Rule name:MALWARE_Win_AsyncRAT
Create hunting rule
Author:ditekSHen
Description:Detects AsyncRAT
Rule name:MALWARE_Win_XWorm
Create hunting rule
Author:ditekSHen
Description:Detects XWorm
Rule name:Multifamily_RAT_Detection
Create hunting rule
Author:Lucas Acha (https://www.lukeacha.com)
Description:Generic detection for multiple RAT families, PUPs, packers and suspicious executables. NOTE: This rule may produce false positives. Updated May 2026 to reduce False Positives.
Rule name:NETexecutableMicrosoft
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:rat_win_xworm_v3
Create hunting rule
Author:Sekoia.io
Description:Finds XWorm (version XClient, v3) samples based on characteristic strings
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash
Rule name:SUSP_DOTNET_PE_List_AV
Create hunting rule
Author:SECUINFRA Falcon Team
Description:Detecs .NET Binary that lists installed AVs
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.
Rule name:win_dotnet_vb_stealer_rat
Create hunting rule
Author:Arrbat
Description:Detects .NET/VB executables with stealer/RAT capabilities (sockets, HTTP, processes, registry, etc).
Rule name:win_xworm_w0
Create hunting rule
Author:jeFF0Falltrades
Description:Detects win.xworm.
Rule name:xworm
Create hunting rule
Author:jeFF0Falltrades

File information

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

Comments