General
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Target
51ffa30e0bb9d0cfbfaf1196013fa002.exe
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Size
2.5MB
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Sample
241004-masg3ssfpb
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MD5
51ffa30e0bb9d0cfbfaf1196013fa002
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SHA1
4345b5fb8073eba34c3c3b7c99cd953f334a8b8e
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SHA256
fab97138b63949bba074d0510d3707f2ccf96632688086a36d1976dadb973fd1
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SHA512
e3dd2ff17e67ff79fc1869e92435db914ef576168798a62790547bdeea6f1daca9a4cc63aee1fe236620db5a845d619c6fd29f00bd187c88250fcb393b567d98
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SSDEEP
49152:UbA30nbz7noruNu06uhaPSKhsToOVc6YlGa4SwvPrn0Gtkjz/+fM:Ub7bforB0UsoOVileSwvPrnLkjz/+k
Behavioral task
behavioral1
Sample
51ffa30e0bb9d0cfbfaf1196013fa002.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
51ffa30e0bb9d0cfbfaf1196013fa002.exe
Resource
win10v2004-20240802-en
Malware Config
Targets
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Target
51ffa30e0bb9d0cfbfaf1196013fa002.exe
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Size
2.5MB
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MD5
51ffa30e0bb9d0cfbfaf1196013fa002
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SHA1
4345b5fb8073eba34c3c3b7c99cd953f334a8b8e
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SHA256
fab97138b63949bba074d0510d3707f2ccf96632688086a36d1976dadb973fd1
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SHA512
e3dd2ff17e67ff79fc1869e92435db914ef576168798a62790547bdeea6f1daca9a4cc63aee1fe236620db5a845d619c6fd29f00bd187c88250fcb393b567d98
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SSDEEP
49152:UbA30nbz7noruNu06uhaPSKhsToOVc6YlGa4SwvPrn0Gtkjz/+fM:Ub7bforB0UsoOVileSwvPrnLkjz/+k
Score10/10-
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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Disables Task Manager via registry modification
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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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Loads dropped DLL
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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
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1