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General
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Target
nursultan nexgen fix.exe
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Size
1.5MB
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Sample
240531-s3pjsade28
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MD5
a3d07c747770c9a471a44446e46e33d5
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SHA1
8340534fb1770bae9660287ddb0496e243efcfe4
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SHA256
16015088c3352a8257f420555e7ce6245aa0e6682deeca79bf7e08c24e1ac3de
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SHA512
307cbdddaa9f426f8ceec060c2c0b1ab5ed3573e327dbcfdda7b1dfd22cf17559f017d835d71bdd15397fa95b0c7dfbfb4cd6b51cd5b2adc1d1cddc8ffe27f99
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SSDEEP
24576:U2G/nvxW3Ww0tpfnNGcvUCxt9groiK5Cg3ZRvm43TzvmF2cK07:UbA30pfnLRRgrheJROuTzvIR
Behavioral task
behavioral1
Sample
nursultan nexgen fix.exe
Resource
win7-20240221-en
Malware Config
Targets
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Target
nursultan nexgen fix.exe
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Size
1.5MB
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MD5
a3d07c747770c9a471a44446e46e33d5
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SHA1
8340534fb1770bae9660287ddb0496e243efcfe4
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SHA256
16015088c3352a8257f420555e7ce6245aa0e6682deeca79bf7e08c24e1ac3de
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SHA512
307cbdddaa9f426f8ceec060c2c0b1ab5ed3573e327dbcfdda7b1dfd22cf17559f017d835d71bdd15397fa95b0c7dfbfb4cd6b51cd5b2adc1d1cddc8ffe27f99
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SSDEEP
24576:U2G/nvxW3Ww0tpfnNGcvUCxt9groiK5Cg3ZRvm43TzvmF2cK07:UbA30pfnLRRgrheJROuTzvIR
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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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Process spawned unexpected child process
This typically indicates the parent process was compromised via an exploit or macro.
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Disables Task Manager via registry modification
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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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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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