General
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Target
f53c7d5e073dd24cd95288b0aaa2394598858e6e45963fc309317ba422e39b61
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Size
32KB
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Sample
221107-r82kvscdh8
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MD5
0d40d1725cbc53b8b045c47293cfc010
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SHA1
34796213b600e3575ac7e0fed05b1158e75747b9
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SHA256
f53c7d5e073dd24cd95288b0aaa2394598858e6e45963fc309317ba422e39b61
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SHA512
fefd3273a82fb11fc7c19606d5361044aa49bc36b42629f1e95b03441930019c6a27698723702d9ceab859968535191ef07e23417e4e35c869e10b02ffc396f3
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SSDEEP
768:rP1WbPH59kgi2fKACIaFleZQWTGBxMLfb41CYR/9m:rtWbZltfjCHwQWT/81L
Behavioral task
behavioral1
Sample
f53c7d5e073dd24cd95288b0aaa2394598858e6e45963fc309317ba422e39b61.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
f53c7d5e073dd24cd95288b0aaa2394598858e6e45963fc309317ba422e39b61.exe
Resource
win10v2004-20220901-en
Malware Config
Extracted
joker
http://mmtie.oss-cn-hangzhou.aliyuncs.com
Targets
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Target
f53c7d5e073dd24cd95288b0aaa2394598858e6e45963fc309317ba422e39b61
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Size
32KB
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MD5
0d40d1725cbc53b8b045c47293cfc010
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SHA1
34796213b600e3575ac7e0fed05b1158e75747b9
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SHA256
f53c7d5e073dd24cd95288b0aaa2394598858e6e45963fc309317ba422e39b61
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SHA512
fefd3273a82fb11fc7c19606d5361044aa49bc36b42629f1e95b03441930019c6a27698723702d9ceab859968535191ef07e23417e4e35c869e10b02ffc396f3
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SSDEEP
768:rP1WbPH59kgi2fKACIaFleZQWTGBxMLfb41CYR/9m:rtWbZltfjCHwQWT/81L
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Downloads MZ/PE file
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Drops file in Drivers directory
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Executes dropped EXE
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Registers COM server for autorun
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Sets file execution options in registry
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Sets service image path in registry
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Deletes itself
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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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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Drops file in System32 directory
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