General
- Target x4b0844bf9e5c5121207e935f4c434991b151588b9f377e0ebda9b40d8d58a1ae.exe
- Size 1.7MB
- Sample260709-wrglksft6n
- SHA256 4b0844bf9e5c5121207e935f4c434991b151588b9f377e0ebda9b40d8d58a1ae
- MD5 152f31b17742fa69b96b7d97e1645fed
- SHA1 15f7687f1e60c6718d493cf8e25e614c6bd807be
- SHA512 900f458e15f76d9a36b7f98bc80d1b7dc6e354b097ffc4ac34abae781ef1ba930916b56f759731bde1e05c01d7cbb4fa9b5d798f43b38d2c658db4a294b2bcf6
- SSDEEP 49152:ckQTAjIwMtuvMDVPG4JdXeR4aT6LQ+d3mY/4qxTsx3scE:caZuRD9JdOR4m+lmY/4rx8cE
- TLSH T12C8523097181D373C2FB003085C58FB55A2566224F7566EFFBE89B662F202F4BB661C9
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
x4b0844bf9e5c5121207e935f4c434991b151588b9f377e0ebda9b40d8d58a1ae.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
x4b0844bf9e5c5121207e935f4c434991b151588b9f377e0ebda9b40d8d58a1ae.exe
Resource
win11ltsc2024-20260706-en
Malware Config
Targets
-
- Target x4b0844bf9e5c5121207e935f4c434991b151588b9f377e0ebda9b40d8d58a1ae.exe
- Size 1.7MB
- SHA256 4b0844bf9e5c5121207e935f4c434991b151588b9f377e0ebda9b40d8d58a1ae
- MD5 152f31b17742fa69b96b7d97e1645fed
- SHA1 15f7687f1e60c6718d493cf8e25e614c6bd807be
- SHA512 900f458e15f76d9a36b7f98bc80d1b7dc6e354b097ffc4ac34abae781ef1ba930916b56f759731bde1e05c01d7cbb4fa9b5d798f43b38d2c658db4a294b2bcf6
- SSDEEP 49152:ckQTAjIwMtuvMDVPG4JdXeR4aT6LQ+d3mY/4qxTsx3scE:caZuRD9JdOR4m+lmY/4rx8cE
- TLSH T12C8523097181D373C2FB003085C58FB55A2566224F7566EFFBE89B662F202F4BB661C9
- 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