General
- Target x390407e72883e10e5c51ea5611ac253c6ba78e7fbe3372ab838a7fd9b3107718.exe
- Size 1.7MB
- Sample260629-lgedcsbz4m
- SHA256 390407e72883e10e5c51ea5611ac253c6ba78e7fbe3372ab838a7fd9b3107718
- MD5 1f023ca4d153257109b957ff964595d8
- SHA1 b0305620745c03a00a668ea78d3db786bb1266e3
- SHA512 967bc4f32af932b9bc1da562eec148bc6d6f8659d012832e4642e5b4e59054dee4cf5fcd17858e38c8b728fb2095ddcd51984f0e0a2159caf599a056e9dd5e16
- SSDEEP 49152:8kQzALIwMtuvMDVPG4JdXeR4aT6LQ+d3mY/4qxTsx3scz:86BuRD9JdOR4m+lmY/4rx8cz
- TLSH T1C08523057181D333C2FB003085C58FB55A2566224F7666EFFBE89B662F202F4BB665C9
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
x390407e72883e10e5c51ea5611ac253c6ba78e7fbe3372ab838a7fd9b3107718.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
x390407e72883e10e5c51ea5611ac253c6ba78e7fbe3372ab838a7fd9b3107718.exe
Resource
win11ltsc2024-20260618-en
Malware Config
Targets
-
- Target x390407e72883e10e5c51ea5611ac253c6ba78e7fbe3372ab838a7fd9b3107718.exe
- Size 1.7MB
- SHA256 390407e72883e10e5c51ea5611ac253c6ba78e7fbe3372ab838a7fd9b3107718
- MD5 1f023ca4d153257109b957ff964595d8
- SHA1 b0305620745c03a00a668ea78d3db786bb1266e3
- SHA512 967bc4f32af932b9bc1da562eec148bc6d6f8659d012832e4642e5b4e59054dee4cf5fcd17858e38c8b728fb2095ddcd51984f0e0a2159caf599a056e9dd5e16
- SSDEEP 49152:8kQzALIwMtuvMDVPG4JdXeR4aT6LQ+d3mY/4qxTsx3scz:86BuRD9JdOR4m+lmY/4rx8cz
- TLSH T1C08523057181D333C2FB003085C58FB55A2566224F7666EFFBE89B662F202F4BB665C9
- 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