MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cb21db85c2051333889da882982fbf354e3a31f4134045eda6db4ac14961d5ef. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments
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SHA256 hash: cb21db85c2051333889da882982fbf354e3a31f4134045eda6db4ac14961d5ef
SHA3-384 hash: eac2cbfa05dc1e7b3e0726b465cf5bcfc5aabcbcca7f01d22c839433afbea961086909c2e42d89e44c3d9bc09017f147
SHA1 hash: 1e311dd921e93e84581810729c8c83d2d48b5afe
MD5 hash: 499a0e2e86840fb4193f65d419fb9d42
humanhash: georgia-alanine-florida-two
File name:Estado de cuenta.js
Download: download sample
Signature XWorm
Create hunting rule
File size:316'758 bytes
First seen:2025-10-14 13:46:06 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 3072:SMpPXD64jBc7b7UVyb2Gx3OdBAd4TGrN1uhqfy2anPFAn1KPeeR9UkXxQ0IGzvRn:Nx2bPb2s3ziR+y2anPFAn1KPeeR0K
Threatray 1'079 similar samples on MalwareBazaar
TLSH T123643A6C4879B9CEA3215C9208F1329226FDC5725234F4DD9C61CACA4D9F87E72CD62E
Magika javascript
Reporter abuse_ch
Tags:js xworm

Intelligence

File Origin
# of uploads :
1
# of downloads :
104
Origin country :
SE SE
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.26700.JsHeur.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68ee549097a16d00a8d9df8d
Tags:
obfuscate xtreme shell
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm base64 evasive fingerprint obfuscated powershell
Link:
https://www.filescan.io/uploads/68ee56c271883144ef367658/reports/e35f69ba-289f-4d22-bea5-100a4d1e91f3/overview
Verdict:
Suspicious
Labled as:
JS/Agent.DGI
Link:
https://www.hybrid-analysis.com/sample/cb21db85c2051333889da882982fbf354e3a31f4134045eda6db4ac14961d5ef
Verdict:
Malicious
File Type:
js
First seen:
2025-10-14T08:01:00Z UTC
Last seen:
2025-10-16T09:21:00Z UTC
Hits:
~100
Detections:
Backdoor.Agent.TCP.C&C Trojan-Downloader.JS.Cryptoload.sb Trojan.VBS.SAgent.sb HEUR:Trojan.Script.Generic Trojan.PowerShell.AmsiBypass.sb HEUR:Trojan.PowerShell.Tesre.sb Trojan.BAT.Agent.sb HEUR:Trojan.BAT.Tesre.gen Trojan.JS.SAgent.sb PDM:Trojan.Win32.Generic
Link:
https://opentip.kaspersky.com/cb21db85c2051333889da882982fbf354e3a31f4134045eda6db4ac14961d5ef/results?tab=lookup
Result
Threat name:
XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1794905
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Creates processes via WMI
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Powershell drops PE file
Powershell is started from unusual location (likely to bypass HIPS)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Reads the Security eventlog
Reads the System eventlog
Sample uses string decryption to hide its real strings
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Potential Startup Shortcut Persistence Via PowerShell.EXE
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: PowerShell Base64 Encoded IEX Cmdlet
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Uses the Telegram API (likely for C&C communication)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Wscript starts Powershell (via cmd or directly)
Yara detected Telegram RAT
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1794905 Sample: Estado de cuenta.js Startdate: 14/10/2025 Architecture: WINDOWS Score: 100 49 api.telegram.org 2->49 63 Suricata IDS alerts for network traffic 2->63 65 Found malware configuration 2->65 67 Malicious sample detected (through community Yara rule) 2->67 71 11 other signatures 2->71 10 wscript.exe 1 1 2->10         started        14 XWormClient.exe 24 2->14         started        16 XWormClient.exe 24 2->16         started        signatures3 69 Uses the Telegram API (likely for C&C communication) 49->69 process4 file5 43 C:\Users\user\...\CelestialComponent.bat, ASCII 10->43 dropped 73 Wscript starts Powershell (via cmd or directly) 10->73 75 Windows Scripting host queries suspicious COM object (likely to drop second stage) 10->75 77 Suspicious execution chain found 10->77 79 Creates processes via WMI 10->79 18 cmd.exe 1 10->18         started        81 Powershell is started from unusual location (likely to bypass HIPS) 14->81 83 Reads the Security eventlog 14->83 85 Reads the System eventlog 14->85 21 conhost.exe 14->21         started        23 conhost.exe 16->23         started        signatures6 process7 signatures8 51 Suspicious powershell command line found 18->51 53 Wscript starts Powershell (via cmd or directly) 18->53 25 cmd.exe 1 18->25         started        27 conhost.exe 18->27         started        process9 process10 29 cmd.exe 2 25->29         started        signatures11 87 Suspicious powershell command line found 29->87 89 Wscript starts Powershell (via cmd or directly) 29->89 32 powershell.exe 16 32 29->32         started        37 conhost.exe 29->37         started        process12 dnsIp13 45 216.250.253.99, 2478, 49692 AS-TIERP-19019US United States 32->45 47 api.telegram.org 149.154.167.220, 443, 49690 TELEGRAMRU United Kingdom 32->47 39 C:\Users\user\AppData\...\XWormClient.exe, PE32+ 32->39 dropped 41 C:\Users\user\AppData\...\XWormClient.lnk, MS 32->41 dropped 55 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 32->55 57 Found suspicious powershell code related to unpacking or dynamic code loading 32->57 59 Loading BitLocker PowerShell Module 32->59 61 Powershell drops PE file 32->61 file14 signatures15
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/cb21db85c2051333889da882982fbf354e3a31f4134045eda6db4ac14961d5ef
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cb21db85c2051333889da882982fbf354e3a31f4134045eda6db4ac14961d5ef/
Verdict:
Malicious
Threat:
Family.XWORM
Link:
https://tip.neiki.dev/file/cb21db85c2051333889da882982fbf354e3a31f4134045eda6db4ac14961d5ef
Threat name:
Script-BAT.Packed.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-10-14 13:01:00 UTC
File Type:
Text (HTML)
AV detection:
8 of 24 (33.33%)
Threat level:
  1/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zmq5xbocaujthce5vcbjql57gvhdumpucnael3ng3nfmcslb2xxq._file
Verdict:
malicious
Label(s):
xworm
Create hunting rule
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36de97d34c27bc19163101bfcc6a8a32bf411fd099119cd04a86a40dda4bac4d
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3ca2df830068d109a89d63e7e151817cad8304ef3b01f0f2a8ac0016d3f4f8f4
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41b78ed7f39e36f4551634007fd5370ce8bbe942c9e320a17b98057b0c82191b
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afac378b7972bed3b8555e79277577b8b61d0d62e0e29a6bdf970d1353454772
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c41382baf0579770f75c871c2131638aa699af0e9e6a7fb44e053e325a55409f
XWorm
error
XWorm
+ 1'069 additional samples on MalwareBazaar
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:xworm execution persistence rat trojan
Link:
https://tria.ge/reports/251014-q9lqcsbj9s/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Adds Run key to start application
Command and Scripting Interpreter: PowerShell
Drops startup file
Executes dropped EXE
Badlisted process makes network request
Detect Xworm Payload
Process spawned unexpected child process
Xworm
Xworm family
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/cb21db85c2051333889da882982fbf354e3a31f4134045eda6db4ac14961d5ef

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
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.

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