General
- Target x19ecd3a6206a0fb9c438a4642665899cbdfdf4b68f75a00eb292454b5538e18b.exe
- Size 1.7MB
- Sample260712-knnpyaez4r
- SHA256 19ecd3a6206a0fb9c438a4642665899cbdfdf4b68f75a00eb292454b5538e18b
- MD5 aaae7e51e1cd9812a5a8918092d55b99
- SHA1 4e04460003cc16b8e8ab1f0a320ab6709f1d153f
- SHA512 2f90868b320f0c113041e8613c93216ba9cf7bdb0b156037f3017c804292723afdd0b727b418558ed5b8e4422e3549376e1b193280d023dc8572b032fbbbd989
- SSDEEP 49152:ckQTAAIwMtuvMDVPG4JdXeR4aT6LQ+d3mY/4qxTsx3scG:caYuRD9JdOR4m+lmY/4rx8cG
- TLSH T17C8523197181D333C2FB003085C58FB55A2566224F7566EFFBE89B662F202F4BB661C9
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
x19ecd3a6206a0fb9c438a4642665899cbdfdf4b68f75a00eb292454b5538e18b.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
x19ecd3a6206a0fb9c438a4642665899cbdfdf4b68f75a00eb292454b5538e18b.exe
Resource
win11ltsc2024-20260709-en
Malware Config
Targets
-
- Target x19ecd3a6206a0fb9c438a4642665899cbdfdf4b68f75a00eb292454b5538e18b.exe
- Size 1.7MB
- SHA256 19ecd3a6206a0fb9c438a4642665899cbdfdf4b68f75a00eb292454b5538e18b
- MD5 aaae7e51e1cd9812a5a8918092d55b99
- SHA1 4e04460003cc16b8e8ab1f0a320ab6709f1d153f
- SHA512 2f90868b320f0c113041e8613c93216ba9cf7bdb0b156037f3017c804292723afdd0b727b418558ed5b8e4422e3549376e1b193280d023dc8572b032fbbbd989
- SSDEEP 49152:ckQTAAIwMtuvMDVPG4JdXeR4aT6LQ+d3mY/4qxTsx3scG:caYuRD9JdOR4m+lmY/4rx8cG
- TLSH T17C8523197181D333C2FB003085C58FB55A2566224F7566EFFBE89B662F202F4BB661C9
- 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