MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 fb39d3b564103e08a57ba475aa657a2cf1cedadbafecfa01948ddb7506de03a0. 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: 12
| SHA256 hash: | fb39d3b564103e08a57ba475aa657a2cf1cedadbafecfa01948ddb7506de03a0 |
|---|---|
| SHA3-384 hash: | 61a01369fffa740d0abb084c0ac13553a4425a730bb2e315abd0a244bee1f7919e6f3c4ac4299208e77eff4085796342 |
| SHA1 hash: | c2094e2ff960f9f07f4f1ce6f73b81fbee256ac1 |
| MD5 hash: | 1c7dcdc18904a8d4dd844d8a9c7a0673 |
| humanhash: | undress-music-massachusetts-social |
| File name: | proof of payment.js |
| Download: | download sample |
| Signature | XWorm |
| File size: | 1'636'909 bytes |
| First seen: | 2026-07-15 07:23:48 UTC |
| Last seen: | Never |
| File type: |  js |
| MIME type: | text/plain |
| ssdeep | 768:ZddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddZ:z |
| Threatray | 1 similar samples on MalwareBazaar |
| TLSH | T12475A8A7C37D8736773A1736DF8F00009D6EB7282DAA12883D1677AA59831219176F37 |
| Magika | javascript |
| Reporter |  abuse_ch |
| Tags: | js xworm |
Intelligence
File Origin
# of uploads :
1
# of downloads :
133
Origin country :
SEVendor Threat Intelligence
No detections
Detection(s):
Verdict:
Malicious
Score:
96.5%
Tags:
autorun cryxos
Verdict:
Likely Malicious
Threat level:
7.5/10
Confidence:
100%
Tags:
masquerade repaired
Verdict:
Malicious
Labled as:
Trojan.Cryxos.JS
Verdict:
Malicious
File Type:
js
First seen:
2026-07-14T20:11:00Z UTC
Last seen:
2026-07-16T05:47:00Z UTC
Hits:
~1000
Result
Threat name:
XWorm
Detection:
malicious
Classification:
expl.troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Connects to a pastebin service (likely for C&C)
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Creates processes via WMI
Detected large data written to user environment variables, potentially indicating payload staging for fileless execution
Drops script or batch files to the startup folder
Early bird code injection technique detected
Found malware configuration
Hides threads from debuggers
Injects a PE file into a foreign processes
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries memory information (via WMI often done to detect virtual machines)
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Queues an APC in another process (thread injection)
Sample uses string decryption to hide its real strings
Sigma detected: Drops script at startup location
Sigma detected: Suspect Svchost Activity
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
System process connects to network (likely due to code injection or exploit)
Tries to delay execution (extensive OutputDebugStringW loop)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Unusual module load detection (module proxying)
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 Powershell decode and execute
Yara detected XWorm
Behaviour
Behavior Graph:
Score:
2%
Verdict:
Benign
File Type:
SCRIPT
Gathering data
Threat name:
Script-JS.Trojan.Cryxos
Status:
Malicious
First seen:
2026-07-14 23:24:22 UTC
File Type:
Text (JavaScript)
AV detection:
6 of 36 (16.67%)
Threat level:
5/5
Detection(s):
Suspicious file
Result
Malware family:
xworm
Score:
10/10
Tags:
family:xworm discovery execution rat trojan
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Drops startup file
Executes dropped EXE
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Family: Xworm
Process spawned unexpected child process
Malware Config
C2 Extraction:
203.202.232.149:2222
Malware family:
XWorm
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.85
File information
The table below shows additional information about this malware sample such as delivery method and external references.
No further information available
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