2024-05-12_eb7971a0d37835bcf1407036f93abf42_ryuk

General

Target
2024-05-12_eb7971a0d37835bcf1407036f93abf42_ryuk
Size 483KB
Sample240512-lsfessdc59
SHA256 d892f5e68252725f159bca1ad9a20fc7f8243436218d2f0c311d92ee4c200a95
MD5 eb7971a0d37835bcf1407036f93abf42
SHA1 966447385a75bedd8cd7cac698e6cd5d078e1278
SHA512 6897983c35069a033bc60a6bbf17fb4104ec78ca8a3f6b1d84615ae38de1869749091e0e4470e281ad1646b3a7d07228a5cbb88f85e4d6de3a9981f46e89df2e
SSDEEP 12288:IctEagGmcl4gBF1BRnI6hAVebOe1rVWy90ctr9WCJ:pR+cl7X1BRnI6hmebOe1r0yDtr0CJ
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-05-12_eb7971a0d37835bcf1407036f93abf42_ryuk

File Explorer

2024-05-12_eb7971a0d37835bcf1407036f93abf42_ryuk

.exe 483KB

2024-05-12_eb7971a0d37835bcf1407036f93abf42_ryuk

IMPHASH e2a1496c94d52a035fe47259ee6587b7
SHA256 d892f5e68252725f159bca1ad9a20fc7f8243436218d2f0c311d92ee4c200a95
MD5 eb7971a0d37835bcf1407036f93abf42
SHA1 966447385a75bedd8cd7cac698e6cd5d078e1278
SHA512 6897983c35069a033bc60a6bbf17fb4104ec78ca8a3f6b1d84615ae38de1869749091e0e4470e281ad1646b3a7d07228a5cbb88f85e4d6de3a9981f46e89df2e
SSDEEP 12288:IctEagGmcl4gBF1BRnI6hAVebOe1rVWy90ctr9WCJ:pR+cl7X1BRnI6hmebOe1r0yDtr0CJ
MD5 SHA1 SHA512 SSDEEP

windows:5 windows x64 arch:x64

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

2

Major OS version

5

Entry point

149424

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:\Projects\WinRAR\sfx\build\sfxrar64\Release\sfxrar.pdb

kernel32

GetLastError SetLastError FormatMessageW GetCurrentProcess DeviceIoControl SetFileTime CloseHandle CreateDirectoryW RemoveDirectoryW CreateFileW DeleteFileW CreateHardLinkW GetShortPathNameW GetLongPathNameW MoveFileW GetFileType GetStdHandle WriteFile ReadFile FlushFileBuffers SetEndOfFile SetFilePointer SetFileAttributesW GetFileAttributesW FindClose FindFirstFileW FindNextFileW GetVersionExW GetCurrentDirectoryW GetFullPathNameW FoldStringW GetModuleFileNameW GetModuleHandleW FindResourceW FreeLibrary GetProcAddress GetCurrentProcessId ExitProcess SetThreadExecutionState Sleep LoadLibraryW GetSystemDirectoryW CompareStringW AllocConsole FreeConsole AttachConsole WriteConsoleW GetProcessAffinityMask CreateThread SetThreadPriority InitializeCriticalSection EnterCriticalSection LeaveCriticalSection DeleteCriticalSection SetEvent ResetEvent ReleaseSemaphore WaitForSingleObject CreateEventW CreateSemaphoreW GetSystemTime SystemTimeToTzSpecificLocalTime TzSpecificLocalTimeToSystemTime SystemTimeToFileTime FileTimeToLocalFileTime LocalFileTimeToFileTime FileTimeToSystemTime GetCPInfo IsDBCSLeadByte MultiByteToWideChar WideCharToMultiByte GlobalAlloc LockResource GlobalLock GlobalUnlock GlobalFree LoadResource SizeofResource SetCurrentDirectoryW GetExitCodeProcess GetLocalTime GetTickCount MapViewOfFile UnmapViewOfFile CreateFileMappingW OpenFileMappingW GetCommandLineW SetEnvironmentVariableW ExpandEnvironmentStringsW GetTempPathW MoveFileExW GetLocaleInfoW GetTimeFormatW GetDateFormatW GetNumberFormatW SetFilePointerEx GetConsoleMode GetConsoleCP HeapSize SetStdHandle GetProcessHeap FreeEnvironmentStringsW RaiseException GetSystemInfo VirtualProtect VirtualQuery LoadLibraryExA RtlCaptureContext RtlLookupFunctionEntry RtlVirtualUnwind IsDebuggerPresent UnhandledExceptionFilter SetUnhandledExceptionFilter GetStartupInfoW IsProcessorFeaturePresent QueryPerformanceCounter GetCurrentThreadId GetSystemTimeAsFileTime InitializeSListHead RtlUnwindEx RtlPcToFileHeader EncodePointer InitializeCriticalSectionAndSpinCount TlsAlloc TlsGetValue TlsSetValue TlsFree LoadLibraryExW QueryPerformanceFrequency TerminateProcess GetModuleHandleExW GetModuleFileNameA GetACP HeapFree HeapAlloc HeapReAlloc GetStringTypeW LCMapStringW FindFirstFileExA FindNextFileA IsValidCodePage GetOEMCP GetCommandLineA GetEnvironmentStringsW

gdiplus

GdiplusShutdown GdiplusStartup GdipCreateHBITMAPFromBitmap GdipCreateBitmapFromStream GdipDisposeImage GdipCloneImage GdipFree GdipAlloc

Name

.text

Size

217KB

Virtual Size

217KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

64KB

Virtual Size

64KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

5KB

Virtual Size

145KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

10KB

Virtual Size

10KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.didat

Size

1024B

Virtual Size

800B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rsrc

Size

103KB

Virtual Size

102KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

2KB

Virtual Size

2KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

2024-05-12_eb7971a0d37835bcf1407036f93abf42_ryuk

kernel32

gdiplus

generic