General
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Target
RustUpdater.exe
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Size
2.3MB
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Sample
240722-xbvc6s1gja
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MD5
50d955b49b2a8878cdd683365c83e183
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SHA1
9ce5bc5c6d2d71eacdd88fbdd478dd241bb96244
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SHA256
528a09f9d227d34e3ca3ada3286fbf3a651fd651d1028c981f5754f3dfa15d78
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SHA512
6ddb253922211164c8a236e733fa80c596fc68e6a9b3cc79f4d0e60fc7b7c01978633dd84151ca85773a0c906d8e288a34ba5d017fef4e50b094a9d808033fb2
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SSDEEP
49152:HYcIk1q0oClfViBnxZgY4PVOZovFNf5qcusO4Dmu657stUQ+h:HY1k1boAfVizZLoRvgcgQmubkh
Behavioral task
behavioral1
Sample
RustUpdater.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
RustUpdater.exe
Resource
win10v2004-20240709-en
Malware Config
Targets
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Target
RustUpdater.exe
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Size
2.3MB
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MD5
50d955b49b2a8878cdd683365c83e183
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SHA1
9ce5bc5c6d2d71eacdd88fbdd478dd241bb96244
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SHA256
528a09f9d227d34e3ca3ada3286fbf3a651fd651d1028c981f5754f3dfa15d78
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SHA512
6ddb253922211164c8a236e733fa80c596fc68e6a9b3cc79f4d0e60fc7b7c01978633dd84151ca85773a0c906d8e288a34ba5d017fef4e50b094a9d808033fb2
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SSDEEP
49152:HYcIk1q0oClfViBnxZgY4PVOZovFNf5qcusO4Dmu657stUQ+h:HY1k1boAfVizZLoRvgcgQmubkh
Score10/10-
DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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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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Loads dropped DLL
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Legitimate hosting services abused for malware hosting/C2
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Drops file in System32 directory
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Suspicious use of NtSetInformationThreadHideFromDebugger
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