Behavioral task
behavioral1
Sample
injector.exe
Resource
win10v2004-20230220-en
General
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Target
Korepi_0.7.2.zip
-
Size
27.2MB
-
MD5
8046fac448fe6f1b8fb548b4ad33a0fe
-
SHA1
32111c832e942cf4bd79f7c5580353886066db38
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SHA256
e4d2a7d2b9620c84b7315b8ccc6a436ba81f61154124aac5cf75117bfdeeef95
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SHA512
268c1d268303921acc915d302939962f75dbd8be18022f192b095d6b5f467820c808841dfef47d37e454ff1f5586080490b0ded0d1ccb047c50da2dec444d429
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SSDEEP
393216:rLBk0gyAUW5ZttwNGjheA1V9HojmxtkMFErZ7l3dyvyfvJDSd1tTvy04KPR63V64:pKrPwUjhe2WmxjF27ltyvyvBSdNA3V64
Malware Config
Signatures
-
resource yara_rule static1/unpack001/HoYoKProtect.dll themida -
Unsigned PE 2 IoCs
Checks for missing Authenticode signature.
resource unpack001/HoYoKProtect.dll unpack001/injector.exe
Files
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Korepi_0.7.2.zip.zip
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HoYoKProtect.dll.dll windows x64
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Sections
Size: 1.0MB - Virtual size: 2.5MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
Size: 501KB - Virtual size: 1.1MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
Size: 8KB - Virtual size: 218KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
Size: 57KB - Virtual size: 99KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
Size: 512B - Virtual size: 8KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
Size: 512B - Virtual size: 24B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
Size: 16.8MB - Virtual size: 24.9MB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
Size: 4KB - Virtual size: 11KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ
.idata Size: 2KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.tls Size: 512B - Virtual size: 4KB
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 512B - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.themida Size: - Virtual size: 11.9MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.boot Size: 8.6MB - Virtual size: 8.6MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.reloc Size: 16B - Virtual size: 4KB
IMAGE_SCN_MEM_READ
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injector.exe.exe windows x64
8c900994ea4628b9ca48009d4162f7b3
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
Imports
kernel32
Process32First
CreateToolhelp32Snapshot
Process32Next
GetModuleHandleA
GetProcAddress
VirtualAllocEx
WriteProcessMemory
CreateRemoteThread
VirtualFreeEx
WaitForSingleObject
DeleteProcThreadAttributeList
LocalFree
GetStdHandle
SetConsoleTextAttribute
ReleaseSRWLockShared
InitializeSListHead
GetSystemTimeAsFileTime
GetCurrentThreadId
UpdateProcThreadAttribute
CloseHandle
GetLastError
Sleep
OpenProcess
ResumeThread
InitializeProcThreadAttributeList
FormatMessageA
GetCurrentProcess
GetCurrentProcessId
QueryPerformanceCounter
IsDebuggerPresent
IsProcessorFeaturePresent
AcquireSRWLockExclusive
AcquireSRWLockShared
SetCurrentDirectoryW
GetCurrentDirectoryW
AreFileApisANSI
GetModuleHandleW
MultiByteToWideChar
WideCharToMultiByte
GetLocaleInfoEx
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionAndSpinCount
DeleteCriticalSection
SetEvent
ResetEvent
WaitForSingleObjectEx
CreateEventW
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
UnhandledExceptionFilter
SetUnhandledExceptionFilter
TerminateProcess
ReleaseSRWLockExclusive
comdlg32
GetOpenFileNameA
advapi32
RegCloseKey
RegCreateKeyExW
RegSetValueExW
OpenProcessToken
RegGetValueW
CreateProcessAsUserA
msvcp140
??1?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAA@XZ
?_Lock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ
?_Unlock@?$basic_streambuf@DU?$char_traits@D@std@@@std@@UEAAXXZ
?showmanyc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JXZ
?uflow@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ
?xsgetn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEAD_J@Z
?xsputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAA_JPEBD_J@Z
?setbuf@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAPEAV12@PEAD_J@Z
?sync@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAHXZ
?imbue@?$basic_streambuf@DU?$char_traits@D@std@@@std@@MEAAXAEBVlocale@2@@Z
??1?$basic_ios@DU?$char_traits@D@std@@@std@@UEAA@XZ
??0?$basic_iostream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@@Z
??1?$basic_iostream@DU?$char_traits@D@std@@@std@@UEAA@XZ
?_Getcat@?$ctype@D@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
?tolower@?$ctype@D@std@@QEBAPEBDPEADPEBD@Z
?tolower@?$ctype@D@std@@QEBADD@Z
??1facet@locale@std@@MEAA@XZ
??0facet@locale@std@@IEAA@_K@Z
?_Decref@facet@locale@std@@UEAAPEAV_Facet_base@3@XZ
?_Incref@facet@locale@std@@UEAAXXZ
??Bid@locale@std@@QEAA_KXZ
?_Getcoll@_Locinfo@std@@QEBA?AU_Collvec@@XZ
??1_Locinfo@std@@QEAA@XZ
??0_Locinfo@std@@QEAA@PEBD@Z
_Xtime_get_ticks
??0?$basic_ios@DU?$char_traits@D@std@@@std@@IEAA@XZ
_Mtx_destroy_in_situ
_Mtx_init_in_situ
_Mtx_lock
?_Throw_C_error@std@@YAXH@Z
_Mtx_unlock
??1?$basic_ostream@DU?$char_traits@D@std@@@std@@UEAA@XZ
?always_noconv@codecvt_base@std@@QEBA_NXZ
?clear@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
?_Fiopen@std@@YAPEAU_iobuf@@PEBDHH@Z
?id@?$codecvt@DDU_Mbstatet@@@std@@2V0locale@2@A
?_Getcat@?$codecvt@DDU_Mbstatet@@@std@@SA_KPEAPEBVfacet@locale@2@PEBV42@@Z
?getloc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEBA?AVlocale@2@XZ
?unshift@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEAD1AEAPEAD@Z
?_Init@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAXXZ
?in@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
?out@?$codecvt@DDU_Mbstatet@@@std@@QEBAHAEAU_Mbstatet@@PEBD1AEAPEBDPEAD3AEAPEAD@Z
??0?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAA@PEAV?$basic_streambuf@DU?$char_traits@D@std@@@1@_N@Z
?_Pninc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAAPEADXZ
??0?$basic_streambuf@DU?$char_traits@D@std@@@std@@IEAA@XZ
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z
?sgetc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?sbumpc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?widen@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBADD@Z
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ
?put@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@D@Z
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ
?snextc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHXZ
?_Ipfx@?$basic_istream@DU?$char_traits@D@std@@@std@@QEAA_N_N@Z
_Strcoll
?_Syserror_map@std@@YAPEBDH@Z
?id@?$collate@D@std@@2V0locale@2@A
?id@?$ctype@D@std@@2V0locale@2@A
?_Winerror_map@std@@YAHH@Z
?_Xregex_error@std@@YAXW4error_type@regex_constants@1@@Z
?_Xout_of_range@std@@YAXPEBD@Z
?_Init@locale@std@@CAPEAV_Locimp@12@_N@Z
?_Getgloballocale@locale@std@@CAPEAV_Locimp@12@XZ
?cout@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
?uncaught_exceptions@std@@YAHXZ
??0_Lockit@std@@QEAA@H@Z
??1_Lockit@std@@QEAA@XZ
_Strxfrm
?_Xlength_error@std@@YAXPEBD@Z
?_Xbad_alloc@std@@YAXXZ
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@P6AAEAV01@AEAV01@@Z@Z
vcruntime140_1
__CxxFrameHandler4
vcruntime140
memcpy
memmove
memcmp
memset
__std_exception_destroy
__std_exception_copy
_purecall
__std_terminate
strchr
__C_specific_handler
_CxxThrowException
__current_exception
__current_exception_context
api-ms-win-crt-heap-l1-1-0
_set_new_mode
malloc
free
realloc
_callnewh
api-ms-win-crt-runtime-l1-1-0
_initialize_onexit_table
_register_onexit_function
_crt_atexit
_cexit
_seh_filter_exe
_c_exit
_set_app_type
terminate
_get_initial_narrow_environment
system
__p___argv
_initterm
_initterm_e
_register_thread_local_exe_atexit_callback
exit
_exit
_invalid_parameter_noinfo_noreturn
__p___argc
_configure_narrow_argv
_initialize_narrow_environment
api-ms-win-crt-stdio-l1-1-0
_get_stream_buffer_pointers
fclose
__stdio_common_vsprintf
ftell
fputs
fseek
fopen_s
_set_fmode
__stdio_common_vsprintf_s
fread
__acrt_iob_func
__stdio_common_vfprintf
fputc
__p__commode
fflush
setvbuf
fsetpos
_fseeki64
fgetpos
fwrite
fgetc
ungetc
api-ms-win-crt-convert-l1-1-0
strtol
api-ms-win-crt-multibyte-l1-1-0
_mbsicmp
api-ms-win-crt-time-l1-1-0
_gmtime64_s
api-ms-win-crt-filesystem-l1-1-0
_unlock_file
_lock_file
api-ms-win-crt-locale-l1-1-0
_configthreadlocale
___lc_codepage_func
api-ms-win-crt-math-l1-1-0
__setusermatherr
Sections
.text Size: 100KB - Virtual size: 100KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 232KB - Virtual size: 231KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 3KB - Virtual size: 4KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 6KB - Virtual size: 6KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 555KB - Virtual size: 555KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 1024B - Virtual size: 516B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ