General
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Target
277b0b668d401e4fcabdc18fbdde331b0db64f9b62bfa4b76b83b6179f3a57d2
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Size
1.9MB
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Sample
241104-zhgrrsxdlr
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MD5
967181542acac77f5b13f46542e84812
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SHA1
09fbf9cfb636459cc4d54308b5b1c91d32a29f22
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SHA256
277b0b668d401e4fcabdc18fbdde331b0db64f9b62bfa4b76b83b6179f3a57d2
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SHA512
323023582fcc14c30aca827db68bb91204a5e6dc894bb1228370a3c925bb28559778f09a0b3d4581d462921630cede3ac1cd4c864357ee5b4928698e5bbdf082
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SSDEEP
49152:LcC3djqo2xuELnaWpofrYR0nhJLVxIkpAUfKcwucQW1:LcC3djqo2PLaWyPrYkpsc6QW1
Static task
static1
Behavioral task
behavioral1
Sample
277b0b668d401e4fcabdc18fbdde331b0db64f9b62bfa4b76b83b6179f3a57d2.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
277b0b668d401e4fcabdc18fbdde331b0db64f9b62bfa4b76b83b6179f3a57d2.exe
Resource
win10v2004-20241007-en
Malware Config
Targets
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Target
277b0b668d401e4fcabdc18fbdde331b0db64f9b62bfa4b76b83b6179f3a57d2
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Size
1.9MB
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MD5
967181542acac77f5b13f46542e84812
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SHA1
09fbf9cfb636459cc4d54308b5b1c91d32a29f22
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SHA256
277b0b668d401e4fcabdc18fbdde331b0db64f9b62bfa4b76b83b6179f3a57d2
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SHA512
323023582fcc14c30aca827db68bb91204a5e6dc894bb1228370a3c925bb28559778f09a0b3d4581d462921630cede3ac1cd4c864357ee5b4928698e5bbdf082
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SSDEEP
49152:LcC3djqo2xuELnaWpofrYR0nhJLVxIkpAUfKcwucQW1:LcC3djqo2PLaWyPrYkpsc6QW1
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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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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
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
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1