General
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Target
XClient.exe
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Size
181KB
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Sample
250210-vfky7aylft
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MD5
cc753ab1d8daac56d1e705e62d632537
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SHA1
7950dc74519b207c3e24bbaa104df978a56872cb
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SHA256
1578626a3dcfb7b8f1b45b8a4ae7dddb8a185a9f8b5078bde4b094a93da14097
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SHA512
3dfc0e2d1ab6bf2dba387dc9fb1bb3cc1b61ff84ce0ace8569ad138121ef0a2abfdacfe4c96559b425bdda2b7c7ba7da7df0e618cc9f3a76a5ca4ca5179325f0
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SSDEEP
1536:LkZLPk11vanHyaRxXT2Ug+bNoZ8Avnn6emGOEPgHEJtP8TNUPhoHEq:wVf3g+bNMvnRmGOEN18TN8IEq
Behavioral task
behavioral1
Sample
XClient.exe
Resource
win10ltsc2021-20250207-en
Malware Config
Extracted
xworm
93.80.32.255:7000
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Install_directory
%AppData%
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install_file
system132.bind.exe
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telegram
https://api.telegram.org/bot7603136465:AAFpLP6n-3zudeL31J79Iemu9BCZkFG8shw/sendMessage?chat_id=5177525105
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
Extracted
gurcu
https://api.telegram.org/bot7603136465:AAFpLP6n-3zudeL31J79Iemu9BCZkFG8shw/sendMessage?chat_id=5177525105
Targets
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Target
XClient.exe
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Size
181KB
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MD5
cc753ab1d8daac56d1e705e62d632537
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SHA1
7950dc74519b207c3e24bbaa104df978a56872cb
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SHA256
1578626a3dcfb7b8f1b45b8a4ae7dddb8a185a9f8b5078bde4b094a93da14097
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SHA512
3dfc0e2d1ab6bf2dba387dc9fb1bb3cc1b61ff84ce0ace8569ad138121ef0a2abfdacfe4c96559b425bdda2b7c7ba7da7df0e618cc9f3a76a5ca4ca5179325f0
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SSDEEP
1536:LkZLPk11vanHyaRxXT2Ug+bNoZ8Avnn6emGOEPgHEJtP8TNUPhoHEq:wVf3g+bNMvnRmGOEN18TN8IEq
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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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Gurcu family
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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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Loads dropped DLL
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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
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1