General
- Target xd64fac3a552abf7e1ec9e67fd1f0b0bbab7b749e051f909c5e6695e7ecb89b3d.exe
- Size 1.7MB
- Sample260629-eshftsdz9r
- SHA256 d64fac3a552abf7e1ec9e67fd1f0b0bbab7b749e051f909c5e6695e7ecb89b3d
- MD5 a9f8c74d81cb564fdf43f71de6522bbc
- SHA1 f27053bf1731c481686a3285e7dfa2fd77c9a292
- SHA512 4f48b20ff7a898055491c8ec729e81794f726d3d3fe6a79ae373b13f46c59ab750e22aadcb0a7eb690b99679c7a956173466b5c5c0c09ae587392becc8ec283f
- SSDEEP 49152:ckQTAgIwMtuvMDVPG4JdXeR4aT6LQ+d3mY/4qxTsx3scl:ca4uRD9JdOR4m+lmY/4rx8cl
- TLSH T1A18523097181D373C2FB003085C58FB55A2566224F7566EFFBE89B662F202F4BB661C9
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
xd64fac3a552abf7e1ec9e67fd1f0b0bbab7b749e051f909c5e6695e7ecb89b3d.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
xd64fac3a552abf7e1ec9e67fd1f0b0bbab7b749e051f909c5e6695e7ecb89b3d.exe
Resource
win11ltsc2024-20260618-en
Malware Config
Targets
-
- Target xd64fac3a552abf7e1ec9e67fd1f0b0bbab7b749e051f909c5e6695e7ecb89b3d.exe
- Size 1.7MB
- SHA256 d64fac3a552abf7e1ec9e67fd1f0b0bbab7b749e051f909c5e6695e7ecb89b3d
- MD5 a9f8c74d81cb564fdf43f71de6522bbc
- SHA1 f27053bf1731c481686a3285e7dfa2fd77c9a292
- SHA512 4f48b20ff7a898055491c8ec729e81794f726d3d3fe6a79ae373b13f46c59ab750e22aadcb0a7eb690b99679c7a956173466b5c5c0c09ae587392becc8ec283f
- SSDEEP 49152:ckQTAgIwMtuvMDVPG4JdXeR4aT6LQ+d3mY/4qxTsx3scl:ca4uRD9JdOR4m+lmY/4rx8cl
- TLSH T1A18523097181D373C2FB003085C58FB55A2566224F7566EFFBE89B662F202F4BB661C9
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Family: 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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UAC bypass
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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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Checks whether UAC is enabled
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SmartAssembly .NET packer
Detects SmartAssembly .NET packer.
MITRE ATT&CK Enterprise v16
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
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
4