General
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Target
https://limewire.com/d/VwfnV#XclPZYrltG
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Sample
250324-vxrhaswr17
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://limewire.com/d/VwfnV#XclPZYrltG
Resource
win11-20250313-en
Malware Config
Extracted
xworm
trashy123-20554.portmap.host:20554
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Install_directory
%AppData%
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install_file
ValthRun.exe
Extracted
https://github.com/valthrunner/Valthrun/releases/latest/download/run.bat
Targets
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Target
https://limewire.com/d/VwfnV#XclPZYrltG
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Contains code to disable Windows Defender
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
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Detect Xworm Payload
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Xenarmor family
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Xworm family
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Blocklisted process makes network request
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Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Disables Task Manager via registry modification
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Sets service image path in registry
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ACProtect 1.3x - 1.4x DLL software
Detects file using ACProtect software.
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Drops startup file
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Executes dropped EXE
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Loads dropped DLL
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Uses the VBS compiler for execution
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Accesses Microsoft Outlook accounts
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Adds Run key to start application
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
2PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
3Active Setup
1Registry Run Keys / Startup Folder
2Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
3Active Setup
1Registry Run Keys / Startup Folder
2Scheduled Task/Job
1Scheduled Task
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
5Credentials In Files
4Credentials in Registry
1