General
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Target
3ef4fd34810ecaa7bd99bcafe337b84410e7d8b24e86e16d75de2dddbd6edd7f
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Size
2.7MB
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Sample
240511-zpxrkagg3v
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MD5
41ce39b06345d0e333702bde3eeafd15
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SHA1
946d0563c69d50892c9ea0af97d1b463f5f1369b
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SHA256
3ef4fd34810ecaa7bd99bcafe337b84410e7d8b24e86e16d75de2dddbd6edd7f
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SHA512
506ff8b5aed91f0d7aed4325f557aa9becc41f4c9221bbe495a474f01d52c69071a52c3962649fa8a591018c29e8f33c513682a816b86282158469b3b7322d21
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SSDEEP
49152:qH64y2XDuLlIY14o9/yDzr1xJ8XbRrC9mWvR08Yv7yP3GcY:qHfE5Ad8Xd295UmGc
Behavioral task
behavioral1
Sample
3ef4fd34810ecaa7bd99bcafe337b84410e7d8b24e86e16d75de2dddbd6edd7f.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
3ef4fd34810ecaa7bd99bcafe337b84410e7d8b24e86e16d75de2dddbd6edd7f.exe
Resource
win10v2004-20240426-en
Malware Config
Targets
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Target
3ef4fd34810ecaa7bd99bcafe337b84410e7d8b24e86e16d75de2dddbd6edd7f
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Size
2.7MB
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MD5
41ce39b06345d0e333702bde3eeafd15
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SHA1
946d0563c69d50892c9ea0af97d1b463f5f1369b
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SHA256
3ef4fd34810ecaa7bd99bcafe337b84410e7d8b24e86e16d75de2dddbd6edd7f
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SHA512
506ff8b5aed91f0d7aed4325f557aa9becc41f4c9221bbe495a474f01d52c69071a52c3962649fa8a591018c29e8f33c513682a816b86282158469b3b7322d21
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SSDEEP
49152:qH64y2XDuLlIY14o9/yDzr1xJ8XbRrC9mWvR08Yv7yP3GcY:qHfE5Ad8Xd295UmGc
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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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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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Detects executables packed with SmartAssembly
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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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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Adds Run key to start application
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1