General
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Target
c729d915ac96ff25722e76303e87e67c8ed51f776992724fa89fedbb77fc8a28.exe
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Size
2.5MB
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Sample
240701-bpna5aveqr
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MD5
587e1d2473fea9284918bfbcf9897de2
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SHA1
25dc1703e07cc5cc890238cc18d0199effab86be
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SHA256
c729d915ac96ff25722e76303e87e67c8ed51f776992724fa89fedbb77fc8a28
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SHA512
1e7313c16f84e618b9d9cea644d95b34cdb339830c5354354f126b85e8772994302abe5d7a2554e62898fb36d38f03c90b012e4060b69f57ce35806e975522fc
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SSDEEP
49152:4sg2eGAIciUHLJPXf0fo+goVM6EztdiHGEgE7YsOlTvtq9hzDzqv:4FLHLJPPI9ErnvaYzlAfDzq
Behavioral task
behavioral1
Sample
c729d915ac96ff25722e76303e87e67c8ed51f776992724fa89fedbb77fc8a28.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
c729d915ac96ff25722e76303e87e67c8ed51f776992724fa89fedbb77fc8a28.exe
Resource
win10v2004-20240508-en
Malware Config
Targets
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Target
c729d915ac96ff25722e76303e87e67c8ed51f776992724fa89fedbb77fc8a28.exe
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Size
2.5MB
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MD5
587e1d2473fea9284918bfbcf9897de2
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SHA1
25dc1703e07cc5cc890238cc18d0199effab86be
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SHA256
c729d915ac96ff25722e76303e87e67c8ed51f776992724fa89fedbb77fc8a28
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SHA512
1e7313c16f84e618b9d9cea644d95b34cdb339830c5354354f126b85e8772994302abe5d7a2554e62898fb36d38f03c90b012e4060b69f57ce35806e975522fc
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SSDEEP
49152:4sg2eGAIciUHLJPXf0fo+goVM6EztdiHGEgE7YsOlTvtq9hzDzqv:4FLHLJPPI9ErnvaYzlAfDzq
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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 Matrix ATT&CK v13
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
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Abuse Elevation Control Mechanism
1Bypass User Account Control
1Scheduled Task/Job
1Scheduled Task
1