MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b66e79437c28bbb58348435e2dae72f72bf4c2d55ca32547fb4d37416a3ac0a2. 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: 7


Intelligence 7 IOCs YARA 1 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b66e79437c28bbb58348435e2dae72f72bf4c2d55ca32547fb4d37416a3ac0a2
SHA3-384 hash: 38292c8109c6759ccedba44a7f554b01b86af1b69f5aed47c1808b6b75c7995a8a319f77d8741cd9e920a3f5c49d3411
SHA1 hash: 9db22201f293222bf948886815f8dd4a47bf0892
MD5 hash: c98a69e01df32539cb2d60bdf8181e45
humanhash: red-spaghetti-golf-west
File name:confirmación de pago.js
Download: download sample
Signature XWorm
Create hunting rule
File size:37'186'034 bytes
First seen:2026-08-27 08:16:14 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 96:JMP2Ha6qqOqqqqWqqqq88NqqJkqqqqqqqqq6qqqqqqqqqqqqqqqqqqqqqqqqqqqg:JeoNqQePMBLb5VBMczT5WVhRmrt85m6
TLSH T1AE875E9D98584E56437C2A984A6769CEEE7FDC746AD8DB870D4FD09F08095B820FB330
TrID 66.6% (.TXT) Text - UTF-16 (LE) encoded (2000/1)
33.3% (.MP3) MP3 audio (1000/1)
Magika txt
Reporter abuse_ch
Tags:js xworm

Intelligence

File Origin
# of uploads :
1
# of downloads :
122
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
repaired
Link:
https://www.filescan.io/uploads/6a8ff25a36668a3a600926cd/reports/3db9fd33-a0a4-4221-977d-b37b0857ea03/overview
Verdict:
Malicious
Labled as:
JS/LausivLoader.I trojan
Link:
https://www.hybrid-analysis.com/sample/b66e79437c28bbb58348435e2dae72f72bf4c2d55ca32547fb4d37416a3ac0a2
Verdict:
Malicious
File Type:
text
First seen:
2026-08-26T10:39:00Z UTC
Last seen:
2026-08-27T04:50:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/b66e79437c28bbb58348435e2dae72f72bf4c2d55ca32547fb4d37416a3ac0a2/results?tab=lookup
Result
Threat name:
AgentTesla, XWorm
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1964610
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus detection for URL or domain
Bypasses PowerShell execution policy
C2 URLs / IPs found in malware configuration
Check if machine is in data center or colocation facility
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
Contains functionality to log keystrokes (.Net Source)
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
Found malware configuration
Injects a PE file into a foreign processes
Installs a global keyboard hook
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
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: Base64 Encoded PowerShell Command Detected
Sigma detected: Drops script at startup location
Sigma detected: Potential PowerShell Command Line Obfuscation
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Suspicious Environment Variable Has Been Registered
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
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)
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 AgentTesla
Yara detected AntiVM3
Yara detected Powershell decode and execute
Yara detected XWorm
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1964610 Sample: confirmaci#U00f3n de pago.js Startdate: 27/08/2026 Architecture: WINDOWS Score: 100 50 munihuacho.gob.pe 2->50 52 ip-api.com 2->52 70 Suricata IDS alerts for network traffic 2->70 72 Found malware configuration 2->72 74 Malicious sample detected (through community Yara rule) 2->74 76 22 other signatures 2->76 8 powershell.exe 14 7 2->8         started        12 wscript.exe 1 2->12         started        14 wscript.exe 38 2->14         started        signatures3 process4 dnsIp5 54 munihuacho.gob.pe 185.150.190.101, 443, 49710 RELIABLESITE-ReliableSiteNetLLCUS United States 8->54 78 Writes to foreign memory regions 8->78 80 Injects a PE file into a foreign processes 8->80 16 CasPol.exe 4 7 8->16         started        21 conhost.exe 8->21         started        23 powershell.exe 7 12->23         started        25 powershell.exe 12->25         started        82 Suspicious powershell command line found 14->82 84 Wscript starts Powershell (via cmd or directly) 14->84 86 Windows Scripting host queries suspicious COM object (likely to drop second stage) 14->86 88 3 other signatures 14->88 signatures6 process7 dnsIp8 48 194.116.236.54, 2467, 49711 WHITELABELUS Turkey 16->48 44 C:\Users\user\AppData\Local\Temp\aanbtj.js, Unicode 16->44 dropped 58 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 16->58 60 Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines) 16->60 62 Installs a global keyboard hook 16->62 64 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 16->64 27 wscript.exe 2 16->27         started        66 Writes to foreign memory regions 23->66 68 Injects a PE file into a foreign processes 23->68 31 CasPol.exe 15 4 23->31         started        34 conhost.exe 23->34         started        36 CasPol.exe 23->36         started        38 CasPol.exe 25->38         started        40 conhost.exe 25->40         started        42 CasPol.exe 25->42         started        file9 signatures10 process11 dnsIp12 46 C:\Users\user\AppData\Roaming\...\aanbtj.js, Unicode 27->46 dropped 90 Drops script or batch files to the startup folder 27->90 92 Windows Scripting host queries suspicious COM object (likely to drop second stage) 27->92 94 Creates processes via WMI 27->94 56 ip-api.com 208.95.112.1 TUT-AS-TotalUptimeTechnologiesLLCUS United States 31->56 96 Tries to steal Mail credentials (via file / registry access) 31->96 98 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 31->98 100 Installs a global keyboard hook 34->100 102 Tries to harvest and steal browser information (history, passwords, etc) 38->102 file13 signatures14
Gathering data
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wzxhsq34fc53la2iinpc3lts64v7jqwvlsrskr73ju3uc2r2ycra._file
Result
Malware family:
xworm
Create hunting rule
Score:
  10/10
Tags:
family:agenttesla family:xworm collection discovery execution keylogger persistence privilege_escalation rat spyware stealer trojan
Link:
https://tria.ge/reports/260827-j6b87a1gjc/
Behaviour
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Creates a file in the Startup directory
Executes dropped EXE
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
Detect Xworm Payload
Family: AgentTesla
Family: Xworm
Process spawned unexpected child process
Malware Config
C2 Extraction:
194.116.236.54:2467
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: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