General
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Target
krnl_beta.exe
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Size
1.8MB
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Sample
230312-ytbjfsfc22
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MD5
3701dc535fb395d6a1fb557a3aeec5e9
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SHA1
ef517659229ddc6ecfc02481c3953ac9322dae35
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SHA256
ec6df713446a8dd5efb376fbb7b444ed7e09f5cdd98c0494999b64af2e2d5537
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SHA512
20dc14387138f913034bd2c265156dca1f36c128c040a99d6904fe6f1830d2f98afb3dcf0553817adb66e480be7d0fb0d7df58f0feb9b007a5a6bab648b081a2
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SSDEEP
49152:+P1uB0SVp4+KSxyrRUzS65+x+rnxYr9PC:+Pk0ST4+RgRUzS65+x1ZPC
Static task
static1
Malware Config
Targets
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Target
krnl_beta.exe
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Size
1.8MB
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MD5
3701dc535fb395d6a1fb557a3aeec5e9
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SHA1
ef517659229ddc6ecfc02481c3953ac9322dae35
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SHA256
ec6df713446a8dd5efb376fbb7b444ed7e09f5cdd98c0494999b64af2e2d5537
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SHA512
20dc14387138f913034bd2c265156dca1f36c128c040a99d6904fe6f1830d2f98afb3dcf0553817adb66e480be7d0fb0d7df58f0feb9b007a5a6bab648b081a2
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SSDEEP
49152:+P1uB0SVp4+KSxyrRUzS65+x+rnxYr9PC:+Pk0ST4+RgRUzS65+x1ZPC
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Suspicious use of NtCreateUserProcessOtherParentProcess
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Downloads MZ/PE file
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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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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Drops desktop.ini file(s)
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Suspicious use of SetThreadContext
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