General
- Target xf993fdf0304cbfc9c8c19b0e89eb4451118b09d039a56082d0f9fc01c24712c4.exe
- Size 1.7MB
- Sample260529-eebfcscv7w
- SHA256 f993fdf0304cbfc9c8c19b0e89eb4451118b09d039a56082d0f9fc01c24712c4
- MD5 3efed24b0db139409b3b5a0dffba5542
- SHA1 d6d8e586a918f6d99d284c1de30438df30ede6fa
- SHA512 4b5c788edc2b98324eee70420b736480f1a3f43e589e2c77ccfa670808b8bdc93a30163009b34904d124f8cbd52337c61211b61d4c30e360946466ed5c26546c
- SSDEEP 49152:YkQzAvIwMtuvMDVPG4JdXeR4aT6LQ+d3mY/4qxTsx3sc+:Y6FuRD9JdOR4m+lmY/4rx8c+
- TLSH T1208523197181D333C2FB003085C58FB55A2566224F7566EFFBE89B662F202F4BB661C9
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
xf993fdf0304cbfc9c8c19b0e89eb4451118b09d039a56082d0f9fc01c24712c4.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
xf993fdf0304cbfc9c8c19b0e89eb4451118b09d039a56082d0f9fc01c24712c4.exe
Resource
win11-20260513-en
Malware Config
Targets
-
- Target xf993fdf0304cbfc9c8c19b0e89eb4451118b09d039a56082d0f9fc01c24712c4.exe
- Size 1.7MB
- SHA256 f993fdf0304cbfc9c8c19b0e89eb4451118b09d039a56082d0f9fc01c24712c4
- MD5 3efed24b0db139409b3b5a0dffba5542
- SHA1 d6d8e586a918f6d99d284c1de30438df30ede6fa
- SHA512 4b5c788edc2b98324eee70420b736480f1a3f43e589e2c77ccfa670808b8bdc93a30163009b34904d124f8cbd52337c61211b61d4c30e360946466ed5c26546c
- SSDEEP 49152:YkQzAvIwMtuvMDVPG4JdXeR4aT6LQ+d3mY/4qxTsx3sc+:Y6FuRD9JdOR4m+lmY/4rx8c+
- TLSH T1208523197181D333C2FB003085C58FB55A2566224F7566EFFBE89B662F202F4BB661C9
- MD5 SHA1 SHA512 SSDEEP TLSH
Family: DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
Modifies WinLogon for persistence
Process spawned unexpected child process
This typically indicates the parent process was compromised via an exploit or macro.
UAC bypass
Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
Executes dropped EXE
Adds Run key to start application
Checks whether UAC is enabled
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