General
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Target
408d3ec50e5bc7acbc10157fc08b995578ab30c975e9567b5ad9708cc8a7f09b.exe
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Size
2.7MB
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Sample
240522-1czk3ahe3s
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MD5
2317326f5c2ec4b53d5071d19f1a5690
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SHA1
384f47f21bd2dc1a67b80a5dcee9430f43bee08b
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SHA256
408d3ec50e5bc7acbc10157fc08b995578ab30c975e9567b5ad9708cc8a7f09b
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SHA512
98719abb8a334d96ecbd56450d2f55bd15a830ffb1ac516c79c0028f66f348f6b7389f5caf197615e0cd56a353299054ddc5159eb77b1f83c411012a9ac9b246
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SSDEEP
49152:qH64y2XDuLlIY14o9/yDzr1xJ8XbRrC9mWvR08Yv7yP3GcY:qHfE5Ad8Xd295UmGc
Behavioral task
behavioral1
Sample
408d3ec50e5bc7acbc10157fc08b995578ab30c975e9567b5ad9708cc8a7f09b.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
408d3ec50e5bc7acbc10157fc08b995578ab30c975e9567b5ad9708cc8a7f09b.exe
Resource
win10v2004-20240426-en
Malware Config
Targets
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Target
408d3ec50e5bc7acbc10157fc08b995578ab30c975e9567b5ad9708cc8a7f09b.exe
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Size
2.7MB
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MD5
2317326f5c2ec4b53d5071d19f1a5690
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SHA1
384f47f21bd2dc1a67b80a5dcee9430f43bee08b
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SHA256
408d3ec50e5bc7acbc10157fc08b995578ab30c975e9567b5ad9708cc8a7f09b
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SHA512
98719abb8a334d96ecbd56450d2f55bd15a830ffb1ac516c79c0028f66f348f6b7389f5caf197615e0cd56a353299054ddc5159eb77b1f83c411012a9ac9b246
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SSDEEP
49152:qH64y2XDuLlIY14o9/yDzr1xJ8XbRrC9mWvR08Yv7yP3GcY:qHfE5Ad8Xd295UmGc
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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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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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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