General
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Target
XClient.exe
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Size
33KB
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Sample
250209-h8bj1azkcs
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MD5
ab0e7a5649705238576beb18c47d9795
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SHA1
a07d6746796368d3aec69dbf3911de403d538540
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SHA256
3bf5cfa30960b4f67073f9956e70d35001ba8d7b857bb0197497b65925a2374e
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SHA512
82c5093173d2ab7939401534a625380b3a44cceb5f83c9c3bd0ccdae6a6fae30a2330809a004f3caf4bdf4f3407a98d7a149872a0d2d3923baddaef122858055
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SSDEEP
384:9F+PkjD9+E5MFs7iui8L7zKM42pfL3iB7OxVqWqKRApkFXBLTsOZwpGN2v99Ikuq:H+CD93W03v42JiB70lVF49jsOjhrbJ
Behavioral task
behavioral1
Sample
XClient.exe
Resource
win10ltsc2021-20250207-en
Behavioral task
behavioral2
Sample
XClient.exe
Resource
win11-20250207-en
Malware Config
Extracted
xworm
5.0
46.146.38.35:7000
aQXmG9TBYVjFC5jJ
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install_file
USB.exe
Extracted
xworm
3.0
plus-loves.gl.at.ply.gg:59327
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Install_directory
%AppData%
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install_file
USB.exe
Targets
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Target
XClient.exe
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Size
33KB
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MD5
ab0e7a5649705238576beb18c47d9795
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SHA1
a07d6746796368d3aec69dbf3911de403d538540
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SHA256
3bf5cfa30960b4f67073f9956e70d35001ba8d7b857bb0197497b65925a2374e
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SHA512
82c5093173d2ab7939401534a625380b3a44cceb5f83c9c3bd0ccdae6a6fae30a2330809a004f3caf4bdf4f3407a98d7a149872a0d2d3923baddaef122858055
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SSDEEP
384:9F+PkjD9+E5MFs7iui8L7zKM42pfL3iB7OxVqWqKRApkFXBLTsOZwpGN2v99Ikuq:H+CD93W03v42JiB70lVF49jsOjhrbJ
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DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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Dcrat family
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Detect Xworm Payload
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Modifies WinLogon for persistence
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Process spawned unexpected child process
This typically indicates the parent process was compromised via an exploit or macro.
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Xworm family
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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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Downloads MZ/PE file
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
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Executes dropped EXE
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Legitimate hosting services abused for malware hosting/C2
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
3Active Setup
1Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Browser Extensions
1Event Triggered Execution
1Component Object Model Hijacking
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
3Active Setup
1Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Event Triggered Execution
1Component Object Model Hijacking
1Scheduled Task/Job
1Scheduled Task
1