General
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Target
209585215875802786fb17c99093138929aa6ecd9dfd64cf8970103ba8b50cf9.exe
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Size
3.3MB
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Sample
240324-cgvkxagc68
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MD5
6eebd58aa9cc3949cd47d9610093bf5d
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SHA1
a9d2b82ee51dfac91aa0a0c991e38882fed49fe4
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SHA256
209585215875802786fb17c99093138929aa6ecd9dfd64cf8970103ba8b50cf9
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SHA512
b2898c6623ff1d3c6a8186728543b5e8f1d9ef0fe34ada5c319290272067651f51c710705633c1ee28b713ddafa56370b6c929aab251b68df4bf3e4150baf4cf
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SSDEEP
98304:kl7BhTkh8maw0whCK5bMGrawUtQAD/cEsav8EXy:+Caw5bMeU2AD/cRc8Sy
Static task
static1
Behavioral task
behavioral1
Sample
209585215875802786fb17c99093138929aa6ecd9dfd64cf8970103ba8b50cf9.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
209585215875802786fb17c99093138929aa6ecd9dfd64cf8970103ba8b50cf9.exe
Resource
win10v2004-20240226-en
Malware Config
Targets
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Target
209585215875802786fb17c99093138929aa6ecd9dfd64cf8970103ba8b50cf9.exe
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Size
3.3MB
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MD5
6eebd58aa9cc3949cd47d9610093bf5d
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SHA1
a9d2b82ee51dfac91aa0a0c991e38882fed49fe4
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SHA256
209585215875802786fb17c99093138929aa6ecd9dfd64cf8970103ba8b50cf9
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SHA512
b2898c6623ff1d3c6a8186728543b5e8f1d9ef0fe34ada5c319290272067651f51c710705633c1ee28b713ddafa56370b6c929aab251b68df4bf3e4150baf4cf
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SSDEEP
98304:kl7BhTkh8maw0whCK5bMGrawUtQAD/cEsav8EXy:+Caw5bMeU2AD/cRc8Sy
Score10/10-
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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Detects executables packed with SmartAssembly
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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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Loads dropped DLL
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Adds Run key to start application
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of NtSetInformationThreadHideFromDebugger
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
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
1