Kittystrapper[.]exe

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General

Target
Kittystrapper.exe
Size 11.3MB
Sample260905-cbm9msvcmd
SHA256 a6f1277b97bfaf67a0d58f4adbe611e3b728bc5430e855a23d6441d15f20bbb0
MD5 ae95ea2af9e4efc48a35d56341f97e9e
SHA1 5ae849cbe5367c8659d2e7c84bdb32556d859d13
SHA512 e3fe01f8e323da7609b9843cbd5182a39caf1f96066c7455431bc1f28bca18dca450d84a7df28a38f0e3625cfd9746580637d1093000ea4084192708adc56483
SSDEEP 98304:d3+yylLYs0D3kOYoHwfLk3vSmaR0+Mc4AN0edaAHDfysrTlI:duyylUsDObAbN0L
TLSH
T1BCC68C55F3FD0B25F2BB4B35EDB1A2111876BD26A911E7CE4A09A61D0872380CCB1B77
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Kittystrapper.exe

File Explorer

Kittystrapper.exe

.exe 11.3MB

Kittystrapper.exe

IMPHASH a8308de57fce070f4cb88c7f43bf4b27
SHA256 a6f1277b97bfaf67a0d58f4adbe611e3b728bc5430e855a23d6441d15f20bbb0
MD5 ae95ea2af9e4efc48a35d56341f97e9e
SHA1 5ae849cbe5367c8659d2e7c84bdb32556d859d13
SHA512 e3fe01f8e323da7609b9843cbd5182a39caf1f96066c7455431bc1f28bca18dca450d84a7df28a38f0e3625cfd9746580637d1093000ea4084192708adc56483
SSDEEP 98304:d3+yylLYs0D3kOYoHwfLk3vSmaR0+Mc4AN0edaAHDfysrTlI:duyylUsDObAbN0L
TLSH
T1BCC68C55F3FD0B25F2BB4B35EDB1A2111876BD26A911E7CE4A09A61D0872380CCB1B77
MD5 SHA1 SHA512 SSDEEP TLSH

windows:6 windows x64 arch:x64

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

82000

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_GUARD_CF IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB paths

D:\a\_work\1\s\artifacts\obj\win-x64.Release\corehost\apphost\standalone\apphost.pdb

kernel32

FindNextFileW GetCurrentProcess GetModuleHandleExW GetModuleFileNameW LeaveCriticalSection GetEnvironmentVariableW FindClose MultiByteToWideChar GetLastError GetFileAttributesExW GetFullPathNameW GetProcAddress DeleteCriticalSection WideCharToMultiByte IsWow64Process LoadLibraryExW FreeLibrary TlsFree TlsSetValue TlsGetValue TlsAlloc EnterCriticalSection FindFirstFileExW OutputDebugStringW LoadLibraryA GetModuleHandleW InitializeCriticalSectionAndSpinCount SetLastError RaiseException RtlPcToFileHeader RtlUnwindEx InitializeSListHead GetCurrentProcessId IsDebuggerPresent IsProcessorFeaturePresent TerminateProcess SetUnhandledExceptionFilter UnhandledExceptionFilter RtlVirtualUnwind RtlLookupFunctionEntry RtlCaptureContext GetStringTypeW SwitchToThread GetCurrentThreadId InitializeCriticalSectionEx EncodePointer DecodePointer LCMapStringEx QueryPerformanceCounter GetSystemTimeAsFileTime

user32

MessageBoxW

shell32

ShellExecuteW

advapi32

RegOpenKeyExW RegGetValueW DeregisterEventSource RegisterEventSourceW ReportEventW RegCloseKey

api-ms-win-crt-runtime-l1-1-0

__p___argc __p___wargv _initterm _get_initial_wide_environment _initialize_wide_environment _errno _configure_wide_argv _invalid_parameter_noinfo_noreturn _set_app_type _seh_filter_exe _c_exit exit _cexit _register_thread_local_exe_atexit_callback _crt_atexit _exit _initterm_e abort _register_onexit_function _initialize_onexit_table terminate

api-ms-win-crt-stdio-l1-1-0

__p__commode __stdio_common_vsprintf_s setvbuf _wfopen _set_fmode __stdio_common_vswprintf __acrt_iob_func fputwc fputws __stdio_common_vfwprintf fflush

api-ms-win-crt-heap-l1-1-0

_callnewh _set_new_mode free malloc calloc

api-ms-win-crt-string-l1-1-0

wcsnlen strcpy_s _wcsdup strcspn wcsncmp toupper

api-ms-win-crt-convert-l1-1-0

_wtoi wcstoul

api-ms-win-crt-locale-l1-1-0

__pctype_func _unlock_locales localeconv _lock_locales ___lc_codepage_func ___mb_cur_max_func _configthreadlocale setlocale ___lc_locale_name_func

api-ms-win-crt-math-l1-1-0

__setusermatherr frexp

api-ms-win-crt-time-l1-1-0

_gmtime64_s wcsftime _time64

Name

.text

Size

97KB

Virtual Size

97KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

38KB

Virtual Size

37KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

2KB

Virtual Size

6KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

5KB

Virtual Size

5KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

_RDATA

Size

512B

Virtual Size

244B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

1024B

Virtual Size

792B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Name

.rsrc

Size

228KB

Virtual Size

227KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

Kittystrapper.exe

kernel32

user32

shell32

advapi32

api-ms-win-crt-runtime-l1-1-0

api-ms-win-crt-stdio-l1-1-0

api-ms-win-crt-heap-l1-1-0

api-ms-win-crt-string-l1-1-0

api-ms-win-crt-convert-l1-1-0

api-ms-win-crt-locale-l1-1-0

api-ms-win-crt-math-l1-1-0

api-ms-win-crt-time-l1-1-0

generic