General
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Target
97a026b442f5d5739ea3d8565f3a044d.exe
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Size
2.6MB
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Sample
250110-bthw7syrdm
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MD5
97a026b442f5d5739ea3d8565f3a044d
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SHA1
dd409fa09eede943173f5aed10542f378062dcb1
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SHA256
37afdc07792fe92b790bd6ba935889cef87b699d9f1a8f86336076f8cf6e4b72
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SHA512
007b12f6c721ad9681c2013ac0038a23b1dc4bc2fb87c779e85970e820d5f4735c962f05a378ece3a0f23e4288172ccc43b634dffdc12a636673852884dd297d
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SSDEEP
49152:cVtVRFA8evMabRZgEVjPW8bfBodneUXBXw7YKdy2043sjkH:cNR/eUab3W8todenPJcjk
Behavioral task
behavioral1
Sample
97a026b442f5d5739ea3d8565f3a044d.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
97a026b442f5d5739ea3d8565f3a044d.exe
Resource
win10v2004-20241007-en
Malware Config
Targets
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Target
97a026b442f5d5739ea3d8565f3a044d.exe
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Size
2.6MB
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MD5
97a026b442f5d5739ea3d8565f3a044d
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SHA1
dd409fa09eede943173f5aed10542f378062dcb1
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SHA256
37afdc07792fe92b790bd6ba935889cef87b699d9f1a8f86336076f8cf6e4b72
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SHA512
007b12f6c721ad9681c2013ac0038a23b1dc4bc2fb87c779e85970e820d5f4735c962f05a378ece3a0f23e4288172ccc43b634dffdc12a636673852884dd297d
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SSDEEP
49152:cVtVRFA8evMabRZgEVjPW8bfBodneUXBXw7YKdy2043sjkH:cNR/eUab3W8todenPJcjk
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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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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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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
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
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
1Scheduled Task
1