General
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Target
ec21aa9e54a3a986e8abb83ba03b9209d0743c368629144155894ac0441698a5N
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Size
1.5MB
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Sample
241004-p8ae9szaph
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MD5
551bb93b115d30fd78e5a83900381e20
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SHA1
cd075318bb809299c4453ae4b3b0a8cbcc0a5b7b
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SHA256
ec21aa9e54a3a986e8abb83ba03b9209d0743c368629144155894ac0441698a5
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SHA512
3a5837a408ee5093b71303eb8fe31169d984f1b69ff6a2b524bd5553bdc97f19a5669274c2cca216942925c8cb441bd57b604799e4a6aa9078601911684bbed3
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SSDEEP
24576:0NNUtQhWhtqDfDXQdy+N+gfQqRsgFlDRluQ70eJiVbWpR:EzhWhCXQFN+0IEuQgyiVK
Static task
static1
Behavioral task
behavioral1
Sample
ec21aa9e54a3a986e8abb83ba03b9209d0743c368629144155894ac0441698a5N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
ec21aa9e54a3a986e8abb83ba03b9209d0743c368629144155894ac0441698a5N.exe
Resource
win10v2004-20240802-en
Malware Config
Targets
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Target
ec21aa9e54a3a986e8abb83ba03b9209d0743c368629144155894ac0441698a5N
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Size
1.5MB
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MD5
551bb93b115d30fd78e5a83900381e20
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SHA1
cd075318bb809299c4453ae4b3b0a8cbcc0a5b7b
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SHA256
ec21aa9e54a3a986e8abb83ba03b9209d0743c368629144155894ac0441698a5
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SHA512
3a5837a408ee5093b71303eb8fe31169d984f1b69ff6a2b524bd5553bdc97f19a5669274c2cca216942925c8cb441bd57b604799e4a6aa9078601911684bbed3
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SSDEEP
24576:0NNUtQhWhtqDfDXQdy+N+gfQqRsgFlDRluQ70eJiVbWpR:EzhWhCXQFN+0IEuQgyiVK
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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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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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Drops file in Drivers directory
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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
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