🤲🏼 NEW | abuse.ch Community Hub! Earn recognition 🏅 for the malware intelligence you share, climb the leaderboards 📈, and connect with like-minded contributors who share your hunting focus 🤝. Ready to unlock your profile? Go to the Community Hub →

MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4c98709e96d83d9e575cb55e4926b720848cf8ec0f73e15613eaa9fe79525c8e. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4c98709e96d83d9e575cb55e4926b720848cf8ec0f73e15613eaa9fe79525c8e
SHA3-384 hash: 5c5464013ae304d51f635b81e4741875771093af93b1fbd0614fa352edff246e200cb7eefcbba243465ec6fe7d428430
SHA1 hash: f953435bdc3733d93c5c0743f9c9a808d8eecfa0
MD5 hash: 322a882f21c739add2f0b2702f08675a
humanhash: sweet-blue-sweet-grey
File name:Halkbank_Ekstre_620_0110079509.js
Download: download sample
Signature XWorm
Create hunting rule
File size:1'899'900 bytes
First seen:2026-10-02 09:43:38 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 49152:iaXV9QOqTn47I3jIHhKZgVjzKwx///sFi4NdnEtFYn78CZGMldH7P7umbh2kagBl:LXVrqTn47I3jIHhK6VjzKwx///d4Ndnx
TLSH T15F9571EBC85749292EF719889C9E17A1C67A9B3060EC17EF36EF72DD7340CD48A98114
Magika txt
Reporter threatcat_ch
Tags:js xworm

Intelligence

File Origin
# of uploads :
1
# of downloads :
184
Origin country :
CH CH
Vendor Threat Intelligence
No detections
Detection(s):
SecuriteInfo.com.Trojan.JS.Crypt.12975.29209.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-debug autoit cmd evasive expired-cert fingerprint keylogger lolbin obfuscated obfuscated persistence reconnaissance repaired schtasks wscript
Link:
https://www.filescan.io/uploads/6abf7cead1f2a6383bd2c263/reports/ad299ef8-07e6-4e8b-9921-950d1591e7dc/overview
Verdict:
Malicious
Labled as:
JS/Kryptik.DAD trojan
Link:
https://www.hybrid-analysis.com/sample/4c98709e96d83d9e575cb55e4926b720848cf8ec0f73e15613eaa9fe79525c8e
Verdict:
Malicious
File Type:
js
First seen:
2026-10-02T01:13:00Z UTC
Last seen:
2026-10-03T07:05:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/4c98709e96d83d9e575cb55e4926b720848cf8ec0f73e15613eaa9fe79525c8e/results?tab=lookup
Result
Threat name:
DonutLoader, XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1981201
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
JavaScript file contains suspicious strings
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)
Multi AV Scanner detection for submitted file
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: WScript or CScript Dropper
Sigma detected: WScript or CScript Dropper - File
Suricata IDS alerts for network traffic
Unusual module load detection (module proxying)
Uses schtasks.exe or at.exe to add and modify task schedules
Windows Scripting host queries suspicious COM object (likely to drop second stage)
WScript reads language and country specific registry keys (likely country aware script)
Yara detected DonutLoader
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1981201 Sample: Halkbank_Ekstre_620_0110079509.js Startdate: 02/10/2026 Architecture: WINDOWS Score: 100 33 Suricata IDS alerts for network traffic 2->33 35 Found malware configuration 2->35 37 Malicious sample detected (through community Yara rule) 2->37 39 9 other signatures 2->39 7 wscript.exe 7 16 2->7         started        11 wscript.exe 3 2->11         started        process3 file4 29 C:\ProgramData\...\WindowsSecurityUpdate.js, Unicode 7->29 dropped 41 JScript performs obfuscated calls to suspicious functions 7->41 43 Windows Scripting host queries suspicious COM object (likely to drop second stage) 7->43 45 WScript reads language and country specific registry keys (likely country aware script) 7->45 13 support.exe 2 7->13         started        17 cmd.exe 1 7->17         started        19 cmd.exe 1 11->19         started        signatures5 process6 dnsIp7 31 46.151.182.5, 49711, 5050 GHOSTYNETWORKSUS Germany 13->31 47 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 13->47 49 Unusual module load detection (module proxying) 13->49 51 Uses schtasks.exe or at.exe to add and modify task schedules 17->51 21 conhost.exe 17->21         started        23 schtasks.exe 1 17->23         started        25 conhost.exe 19->25         started        27 schtasks.exe 1 19->27         started        signatures8 process9
Score:
93%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/4c98709e96d83d9e575cb55e4926b720848cf8ec0f73e15613eaa9fe79525c8e
Gathering data
Detection:
xworm
Create hunting rule
Link:
https://mwdb.cert.pl/sample/4c98709e96d83d9e575cb55e4926b720848cf8ec0f73e15613eaa9fe79525c8e/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jsmhbhuw3a6z4v24wvpesjvxecciz6hmb5z6cvqt5ku746kslsha._file
Verdict:
malicious
Label(s):
DonutLoader
Create hunting rule
XWorm
Create hunting rule
Link:
https://reports.threatray.com/5a32439a-c142-4688-8d95-cc4a08ce782e
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:donutloader family:xworm discovery execution loader persistence ransomware rat trojan
Link:
https://tria.ge/reports/261002-lqjz7svv9n/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Uses Volume Shadow Copy WMI provider
Uses Volume Shadow Copy service COM API
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
Executes a command shell one-liner
Reads the TCP/IP host and domain name from the registry
System Location Discovery: System Language Discovery
Checks computer location settings
Executes dropped EXE
Detect Xworm Payload
Detects DonutLoader
Family: DonutLoader
Family: Xworm
Malware Config
C2 Extraction:
46.151.182.5:5050
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/4c98709e96d83d9e575cb55e4926b720848cf8ec0f73e15613eaa9fe79525c8e

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:SUSP_Script_PowerShell_Hidden_Launcher
Create hunting rule
Author:Marjoriefort
Description:Script (JS/VBS) lancant PowerShell en mode furtif - dropper frais MalwareBazaar
Reference:Veille fraicheur 2026-09-14 / cluster misses web
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)

File information

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

Malspam

XWorm

Java Script (JS) js 4c98709e96d83d9e575cb55e4926b720848cf8ec0f73e15613eaa9fe79525c8e

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments