MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a02f741d30e33d72c6fdecf0ae1fafa2c44bfd40987a9480c2a11d8f5cd058d4. 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


Intelligence 12 IOCs 1 YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a02f741d30e33d72c6fdecf0ae1fafa2c44bfd40987a9480c2a11d8f5cd058d4
SHA3-384 hash: 56557ee47799b1516d4e09318472722978b6e8eeac115cd9c8f7069ffc8b44f82954d46fb8bb80f62185e83c99c4355f
SHA1 hash: 835f75426cd2a5e377286c84cf3ef6d3823095cc
MD5 hash: d7934855370a22c165563e3c96ab4f2f
humanhash: lion-nine-shade-washington
File name:Cotizacion.js
Download: download sample
Signature XWorm
Create hunting rule
File size:308'255 bytes
First seen:2025-10-07 18:05:15 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 3072:JJFImrWyyfwimdGWzFr8mxM6DMw0iuavFVZnhBqJm33jsGzy+zWsyBFcdHwQJYGK:rGzo0iuYCLGsJFOy
Threatray 975 similar samples on MalwareBazaar
TLSH T1D6643F2DA085DEA7D1BF6DFE2C44581A9340CE172DE0C52B6ABCD76B73A48CC8193716
Magika javascript
Reporter abuse_ch
Tags:js xworm


Avatar
abuse_ch
XWorm C2:
216.250.253.99:2478

Indicators Of Compromise (IOCs)

Below is a list of indicators of compromise (IOCs) associated with this malware samples.

IOCThreatFox Reference
216.250.253.99:2478 https://threatfox.abuse.ch/ioc/1608892/

Intelligence

File Origin
# of uploads :
1
# of downloads :
84
Origin country :
NL NL
Vendor Threat Intelligence
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68e516957f305fa2545d4258
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/68e556705a3bccf09ebbe4cd/reports/f3e49730-5ef5-4d5b-80e4-a7cd9c3950d2/overview
Verdict:
Suspicious
Labled as:
Generik.KGNZXCN trojan
Link:
https://www.hybrid-analysis.com/sample/a02f741d30e33d72c6fdecf0ae1fafa2c44bfd40987a9480c2a11d8f5cd058d4
Verdict:
Malicious
File Type:
js
First seen:
2025-10-07T07:38:00Z UTC
Last seen:
2025-10-08T16:06:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/a02f741d30e33d72c6fdecf0ae1fafa2c44bfd40987a9480c2a11d8f5cd058d4/results?tab=lookup
Result
Threat name:
Chrome Injector, XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1790850
Signature
.NET source code contains a sample name check
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Allocates memory in foreign processes
Antivirus detection for dropped file
C2 URLs / IPs found in malware configuration
Contains functionality to log keystrokes (.Net Source)
Creates a thread in another existing process (thread injection)
Creates processes via WMI
Found malware configuration
Found suspicious powershell code related to unpacking or dynamic code loading
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
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
Tries to harvest and steal browser information (history, passwords, etc)
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 Chrome Injector
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1790850 Sample: Cotizacion.js Startdate: 07/10/2025 Architecture: WINDOWS Score: 100 79 Suricata IDS alerts for network traffic 2->79 81 Found malware configuration 2->81 83 Malicious sample detected (through community Yara rule) 2->83 85 15 other signatures 2->85 12 wscript.exe 1 1 2->12         started        16 XWormClient.exe 25 2->16         started        18 XWormClient.exe 25 2->18         started        process3 file4 73 C:\Users\user\...\HolographicHandler.bat, ASCII 12->73 dropped 111 Wscript starts Powershell (via cmd or directly) 12->111 113 Windows Scripting host queries suspicious COM object (likely to drop second stage) 12->113 115 Suspicious execution chain found 12->115 117 Creates processes via WMI 12->117 20 cmd.exe 1 12->20         started        119 Powershell is started from unusual location (likely to bypass HIPS) 16->119 121 Reads the Security eventlog 16->121 123 Reads the System eventlog 16->123 23 conhost.exe 16->23         started        25 conhost.exe 18->25         started        signatures5 process6 signatures7 87 Suspicious powershell command line found 20->87 89 Wscript starts Powershell (via cmd or directly) 20->89 27 cmd.exe 1 20->27         started        29 conhost.exe 20->29         started        process8 process9 31 cmd.exe 2 27->31         started        signatures10 125 Suspicious powershell command line found 31->125 127 Wscript starts Powershell (via cmd or directly) 31->127 34 powershell.exe 4 43 31->34         started        39 conhost.exe 31->39         started        process11 dnsIp12 77 216.250.253.99, 2478, 49716 AS-TIERP-19019US United States 34->77 65 C:\Users\user\AppData\...\XWormClient.exe, PE32+ 34->65 dropped 67 C:\Users\user\AppData\...\Protect2a3d628b.dll, PE32+ 34->67 dropped 69 15dc679a-7ff2-4866-b323-bd0e064bb0bd.exe, PE32+ 34->69 dropped 71 C:\Users\user\AppData\...\XWormClient.lnk, MS 34->71 dropped 91 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 34->91 93 Tries to harvest and steal browser information (history, passwords, etc) 34->93 95 Found suspicious powershell code related to unpacking or dynamic code loading 34->95 97 2 other signatures 34->97 41 15dc679a-7ff2-4866-b323-bd0e064bb0bd.exe 34->41         started        44 15dc679a-7ff2-4866-b323-bd0e064bb0bd.exe 34->44         started        47 15dc679a-7ff2-4866-b323-bd0e064bb0bd.exe 34->47         started        49 wermgr.exe 34->49         started        file13 signatures14 process15 file16 99 Antivirus detection for dropped file 41->99 101 Multi AV Scanner detection for dropped file 41->101 103 Writes to foreign memory regions 41->103 51 chrome.exe 41->51         started        53 conhost.exe 41->53         started        75 \Device\ConDrv, ASCII 44->75 dropped 105 Allocates memory in foreign processes 44->105 107 Creates a thread in another existing process (thread injection) 44->107 109 Injects a PE file into a foreign processes 44->109 55 msedge.exe 44->55         started        57 conhost.exe 44->57         started        59 conhost.exe 47->59         started        signatures17 process18 process19 61 WerFault.exe 51->61         started        63 WerFault.exe 55->63         started       
Score:
100%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/a02f741d30e33d72c6fdecf0ae1fafa2c44bfd40987a9480c2a11d8f5cd058d4
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a02f741d30e33d72c6fdecf0ae1fafa2c44bfd40987a9480c2a11d8f5cd058d4/
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=uaxxihjq4m6xfrx55tyk4h5pulcex7katb5jjagcueoy6xgqldka._file
Verdict:
malicious
Label(s):
xworm
Create hunting rule
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XWorm
+ 965 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/251007-wpfw9swzcv/
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
Malware Config
C2 Extraction:
216.250.253.99:2478
Malware family:
XWorm
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/a02f741d30e3/report/overview.html
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/a02f741d30e33d72c6fdecf0ae1fafa2c44bfd40987a9480c2a11d8f5cd058d4

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.

Comments