2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk

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General

Target
2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk
Size 3.6MB
Sample241107-chynysvpej
SHA256 777cb9e04ba8f8602d802e45648c73923450c2c19b26c613a5001168727feff3
MD5 b3e5ea8b0d97c245897b590596063e79
SHA1 29adf01785dc7831264983a6ed7fee13cc1b9a41
SHA512 e59dc93d35853d683a4ff2d1f360a8285a6b29b8c7cb3ee2cd003f0e9817c5154d6dc739edd059934bfea0711c9bdd800f23219754ce98db74c95810fc8d932e
SSDEEP 24576:bw317sPycp8nCB3ClpQtQFMeYEftQZ6jCCKb+qXyvOEjgIW0BOgewZMFJ45Xyr44:bByPnI8BRftSbivOeWy4wWN6lK28Wo
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk

File Explorer

2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk

.exe 3.6MB

2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk

IMPHASH b17bd447a5385ad8416eab36cbd6a061
SHA256 777cb9e04ba8f8602d802e45648c73923450c2c19b26c613a5001168727feff3
MD5 b3e5ea8b0d97c245897b590596063e79
SHA1 29adf01785dc7831264983a6ed7fee13cc1b9a41
SHA512 e59dc93d35853d683a4ff2d1f360a8285a6b29b8c7cb3ee2cd003f0e9817c5154d6dc739edd059934bfea0711c9bdd800f23219754ce98db74c95810fc8d932e
SSDEEP 24576:bw317sPycp8nCB3ClpQtQFMeYEftQZ6jCCKb+qXyvOEjgIW0BOgewZMFJ45Xyr44:bByPnI8BRftSbivOeWy4wWN6lK28Wo
MD5 SHA1 SHA512 SSDEEP

windows:6 windows x64 arch:x64

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

73840

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_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB paths

D:\Proj\MegaCrypt\RunPEx64\x64\Release\RunPEx64.pdb

kernel32

CloseHandle CreateFileW CreateProcessW DecodePointer DeleteCriticalSection EncodePointer EnterCriticalSection EnumSystemLocalesW ExitProcess FindClose FindFirstFileExW FindNextFileW FlsAlloc FlsFree FlsGetValue FlsSetValue FlushFileBuffers FreeEnvironmentStringsW FreeLibrary GetACP GetCPInfo GetCommandLineA GetCommandLineW GetConsoleMode GetConsoleOutputCP GetCurrentProcess GetCurrentProcessId GetCurrentThreadId GetEnvironmentStringsW GetExitCodeProcess GetFileSizeEx GetFileType GetLastError GetLocaleInfoW GetModuleFileNameW GetModuleHandleExW GetModuleHandleW GetOEMCP GetProcAddress GetProcessHeap GetStartupInfoW GetStdHandle GetStringTypeW GetSystemInfo GetSystemTimeAsFileTime GetThreadContext GetUserDefaultLCID HeapAlloc HeapFree HeapQueryInformation HeapReAlloc HeapSize HeapValidate InitializeCriticalSectionAndSpinCount InitializeCriticalSectionEx InitializeSListHead IsDebuggerPresent IsProcessorFeaturePresent IsValidCodePage IsValidLocale LCMapStringEx LCMapStringW LeaveCriticalSection LoadLibraryExW MultiByteToWideChar OutputDebugStringW QueryPerformanceCounter RaiseException ReadConsoleW ReadFile ResumeThread RtlCaptureContext RtlLookupFunctionEntry RtlPcToFileHeader RtlUnwind RtlUnwindEx RtlVirtualUnwind SetFilePointerEx SetLastError SetStdHandle SetThreadContext SetUnhandledExceptionFilter TerminateProcess TlsAlloc TlsFree TlsGetValue TlsSetValue UnhandledExceptionFilter VirtualAllocEx WaitForSingleObject WideCharToMultiByte WriteConsoleW WriteFile WriteProcessMemory

Name

.text

Size

410KB

Virtual Size

409KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

3.1MB

Virtual Size

3.1MB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

5KB

Virtual Size

12KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

23KB

Virtual Size

22KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.00cfg

Size

512B

Virtual Size

56B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.gxfg

Size

23KB

Virtual Size

22KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.retplne

Size

512B

Virtual Size

140B

Characteristics

Name

_RDATA

Size

512B

Virtual Size

500B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

512B

Virtual Size

424B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

3KB

Virtual Size

2KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

2024-11-07_b3e5ea8b0d97c245897b590596063e79_ryuk

kernel32

generic