2024-04-04_8c2d4f53240789f2704c71c1eb0b5d7d_ryuk

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General

Target
2024-04-04_8c2d4f53240789f2704c71c1eb0b5d7d_ryuk
Size 1.1MB
Sample240404-ncz6dadd2x
SHA256 16e8416212c215111a7122461eb6daaf1eed15cd19424889e1344176cd4e9347
MD5 8c2d4f53240789f2704c71c1eb0b5d7d
SHA1 893805e351442df74442ff623f015f29763c25f1
SHA512 a3d15d2bcd9aa4512476b8d39de891fed38528fc96810995a666305ccc24314b90815e9a996d40357683d9a3028d14bf857971499345b3aa4953b75b4bfd947a
SSDEEP 24576:1Si1SoCU5qJSr1eWPSCsP0MugC6eTHXN4qLqEIH7sTrvIr:tS7PLjeTHd5/IbsT0
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-04_8c2d4f53240789f2704c71c1eb0b5d7d_ryuk

File Explorer

2024-04-04_8c2d4f53240789f2704c71c1eb0b5d7d_ryuk

.exe 1.1MB

2024-04-04_8c2d4f53240789f2704c71c1eb0b5d7d_ryuk

IMPHASH 4d7ee3dbe35baab5e33b9a84e9397818
SHA256 16e8416212c215111a7122461eb6daaf1eed15cd19424889e1344176cd4e9347
MD5 8c2d4f53240789f2704c71c1eb0b5d7d
SHA1 893805e351442df74442ff623f015f29763c25f1
SHA512 a3d15d2bcd9aa4512476b8d39de891fed38528fc96810995a666305ccc24314b90815e9a996d40357683d9a3028d14bf857971499345b3aa4953b75b4bfd947a
SSDEEP 24576:1Si1SoCU5qJSr1eWPSCsP0MugC6eTHXN4qLqEIH7sTrvIr:tS7PLjeTHd5/IbsT0
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

38856

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA IMAGE_DLLCHARACTERISTICS_NX_COMPAT IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB paths

E:\CPython\cpython35\lib\distutils\command\wininst-14.0-amd64.pdb

comctl32

CreatePropertySheetPageA PropertySheetA

kernel32

SetThreadPriority SetFilePointer ResumeThread GetModuleHandleA MultiByteToWideChar GetTempPathA GetCurrentThread LoadLibraryA DeleteFileA SetStdHandle GetProcAddress LocalFree GetFileSize RemoveDirectoryA FreeLibrary CreateProcessA FormatMessageA GetTempFileNameA GetPrivateProfileIntA GetPrivateProfileStringA GetTempPathW CreateDirectoryA GetModuleFileNameW FlushFileBuffers SetFilePointerEx SetEndOfFile GetFileAttributesExW SetConsoleCtrlHandler GetProcessHeap FreeEnvironmentStringsW GetEnvironmentStringsW GetCPInfo GetOEMCP IsValidCodePage FindNextFileW FindNextFileA FindFirstFileExW FindFirstFileExA FindClose CreateThread WaitForSingleObjectEx OutputDebugStringW OutputDebugStringA GetFullPathNameA GetFullPathNameW GetCurrentDirectoryW SetCurrentDirectoryW LoadLibraryExA GetStdHandle GetCurrentProcess SetPriorityClass GetModuleFileNameA ReadFile MapViewOfFile WriteConsoleW DosDateTimeToFileTime CreateFileMappingA CloseHandle CreateFileA GetFileAttributesA GetLastError UnmapViewOfFile lstrlenA SetFileTime SetLastError HeapSize GetTimeZoneInformation RaiseException GetStringTypeW GetConsoleCP HeapReAlloc SetEnvironmentVariableW RtlCaptureContext RtlLookupFunctionEntry RtlVirtualUnwind UnhandledExceptionFilter SetUnhandledExceptionFilter TerminateProcess IsProcessorFeaturePresent QueryPerformanceCounter GetCurrentProcessId GetCurrentThreadId GetSystemTimeAsFileTime InitializeSListHead IsDebuggerPresent GetStartupInfoW GetModuleHandleW RtlUnwindEx InterlockedPushEntrySList InterlockedFlushSList EnterCriticalSection LeaveCriticalSection DeleteCriticalSection InitializeCriticalSectionAndSpinCount TlsAlloc TlsGetValue TlsSetValue TlsFree LoadLibraryExW WideCharToMultiByte GetCommandLineA GetCommandLineW CreateFileW GetDriveTypeW GetFileType PeekNamedPipe SystemTimeToTzSpecificLocalTime FileTimeToSystemTime WriteFile ExitProcess GetModuleHandleExW GetACP GetConsoleMode ReadConsoleW HeapFree HeapAlloc GetDateFormatW GetTimeFormatW CompareStringW LCMapStringW GetLocaleInfoW IsValidLocale GetUserDefaultLCID EnumSystemLocalesW SetEnvironmentVariableA

user32

ReleaseDC BeginPaint EndPaint DispatchMessageA GetWindowRect GetFocus LoadCursorA GetDC PostMessageA GetSystemMetrics wsprintfA ShowWindow MessageBoxA MoveWindow RegisterClassA DefWindowProcA CreateWindowExA TranslateMessage SendDlgItemMessageA SetDlgItemTextA SendMessageA SetCursor GetDlgItem PeekMessageA GetParent UpdateWindow

gdi32

SelectObject CreateDIBitmap SetTextColor TextOutA SetBkMode DeleteObject CreateSolidBrush CreateFontA

advapi32

RegDeleteValueA RegOpenKeyExA RegCloseKey RegDeleteKeyA RegQueryValueExA RegCreateKeyExA RegQueryValueA RegSetValueExA RegEnumKeyExA

shell32

ShellExecuteA

ole32

CoUninitialize CoCreateInstance CoInitialize

Name

.text

Size

432KB

Virtual Size

431KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

106KB

Virtual Size

105KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

4KB

Virtual Size

18KB

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

.gfids

Size

512B

Virtual Size

372B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

5KB

Virtual Size

4KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

568KB

Virtual Size

572KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Sharing

General

Malware Config

Signatures

File Explorer

2024-04-04_8c2d4f53240789f2704c71c1eb0b5d7d_ryuk

comctl32

kernel32

user32

gdi32

advapi32

shell32

ole32

generic