2024-04-04_734abeddf00662a86cbaa71c8cdd462b_ryuk

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General

Target
2024-04-04_734abeddf00662a86cbaa71c8cdd462b_ryuk
Size 2.2MB
Sample240404-m4spyada7w
SHA256 311203d7fc1f6315c09341e5018761a76db43b7a783e793dd49a8f33379ea996
MD5 734abeddf00662a86cbaa71c8cdd462b
SHA1 1ac4ec30d929be096b8c904456e2d14f1f3f12fb
SHA512 ad04358152a5f200ca645dcec3645e6aed3a7441c85c275612db97cb731dbe0c591dd2c50ee484a102e922933fb01c97e1ae63aac95d7eec4d20d718c1f3f707
SSDEEP 49152:CWWu1zKeIxNj2bchBluP3GiyBKD9gDUYmvFur31yAipQCtXxc0H:CWBMNj3ZoYU7dG1yfpVBlH
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-04_734abeddf00662a86cbaa71c8cdd462b_ryuk

File Explorer

2024-04-04_734abeddf00662a86cbaa71c8cdd462b_ryuk

.exe 2.2MB

2024-04-04_734abeddf00662a86cbaa71c8cdd462b_ryuk

IMPHASH 044637eddebae4fdb39bd34a11039cf3
SHA256 311203d7fc1f6315c09341e5018761a76db43b7a783e793dd49a8f33379ea996
MD5 734abeddf00662a86cbaa71c8cdd462b
SHA1 1ac4ec30d929be096b8c904456e2d14f1f3f12fb
SHA512 ad04358152a5f200ca645dcec3645e6aed3a7441c85c275612db97cb731dbe0c591dd2c50ee484a102e922933fb01c97e1ae63aac95d7eec4d20d718c1f3f707
SSDEEP 49152:CWWu1zKeIxNj2bchBluP3GiyBKD9gDUYmvFur31yAipQCtXxc0H:CWBMNj3ZoYU7dG1yfpVBlH
MD5 SHA1 SHA512 SSDEEP

windows:5 windows x64 arch:x64

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

651552

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

D:\a\_work\e\src\out\Release_x64\elevation_service.exe.pdb

dbghelp

SymCleanup SymFromAddr SymGetLineFromAddr64 SymGetSearchPathW SymInitialize SymSetOptions SymSetSearchPathW

oleaut32

SysAllocStringByteLen SysStringByteLen

kernel32

AcquireSRWLockExclusive AcquireSRWLockShared AssignProcessToJobObject CloseHandle CompareStringW CreateDirectoryW CreateEventW CreateFileA CreateFileMappingW CreateFileW CreateProcessW CreateThread DecodePointer DeleteCriticalSection DeleteFileW DeleteProcThreadAttributeList DuplicateHandle EncodePointer EnterCriticalSection EnumSystemLocalesW ExitProcess ExitThread ExpandEnvironmentStringsW FindClose FindFirstFileExW FindNextFileW FlsAlloc FlsFree FlsGetValue FlsSetValue FlushFileBuffers FormatMessageW FreeEnvironmentStringsW FreeLibrary FreeLibraryAndExitThread GetACP GetCPInfo GetCommandLineA GetCommandLineW GetComputerNameExW GetConsoleMode GetConsoleOutputCP GetCurrentDirectoryW GetCurrentProcess GetCurrentProcessId GetCurrentThread GetCurrentThreadId GetDateFormatW GetDriveTypeW GetEnvironmentStringsW GetEnvironmentVariableW GetExitCodeProcess GetFileAttributesW GetFileSizeEx GetFileType GetFullPathNameW GetLastError GetLocalTime GetLocaleInfoW GetLogicalProcessorInformation GetLongPathNameW GetModuleFileNameW GetModuleHandleA GetModuleHandleExW GetModuleHandleW GetNativeSystemInfo GetOEMCP GetProcAddress GetProcessHeap GetProcessId GetProductInfo GetStartupInfoW GetStdHandle GetStringTypeW GetSystemDirectoryW GetSystemInfo GetSystemTimeAsFileTime GetTempPathW GetThreadId GetThreadPriority GetTickCount GetTimeFormatW GetTimeZoneInformation GetUserDefaultLCID GetVersionExW GetWindowsDirectoryW HeapAlloc HeapDestroy HeapFree HeapReAlloc HeapSetInformation HeapSize InitOnceExecuteOnce InitializeCriticalSectionAndSpinCount InitializeCriticalSectionEx InitializeProcThreadAttributeList InitializeSListHead InitializeSRWLock IsDebuggerPresent IsProcessorFeaturePresent IsValidCodePage IsValidLocale IsWow64Process K32GetModuleInformation LCMapStringW LeaveCriticalSection LoadLibraryExA LoadLibraryExW LoadLibraryW LocalFree MapViewOfFile MoveFileExW MultiByteToWideChar OpenProcess OutputDebugStringA OutputDebugStringW QueryFullProcessImageNameA QueryFullProcessImageNameW QueryPerformanceCounter QueryPerformanceFrequency QueryThreadCycleTime RaiseException ReadConsoleW ReadFile ReleaseSRWLockExclusive ReleaseSRWLockShared RemoveDirectoryW ResetEvent ResumeThread RtlCaptureContext RtlCaptureStackBackTrace RtlLookupFunctionEntry RtlPcToFileHeader RtlUnwind RtlUnwindEx RtlVirtualUnwind SetCurrentDirectoryW SetEndOfFile SetEnvironmentVariableW SetEvent SetFileAttributesW SetFilePointer SetFilePointerEx SetFileTime SetHandleInformation SetLastError SetStdHandle SetThreadInformation SetThreadPriority SetUnhandledExceptionFilter Sleep SleepConditionVariableSRW SystemTimeToFileTime TerminateProcess TlsAlloc TlsFree TlsGetValue TlsSetValue TryAcquireSRWLockExclusive TzSpecificLocalTimeToSystemTime UnhandledExceptionFilter UnmapViewOfFile UpdateProcThreadAttribute VirtualAlloc VirtualFree VirtualProtect VirtualQuery WaitForSingleObject WaitForSingleObjectEx WakeAllConditionVariable WakeConditionVariable WideCharToMultiByte WriteConsoleW WriteFile lstrcmpiW lstrlenA

crypt32

CryptProtectData CryptUnprotectData

rpcrt4

I_RpcOpenClientProcess

api-ms-win-core-winrt-string-l1-1-0

WindowsCreateString WindowsDeleteString WindowsGetStringRawBuffer

api-ms-win-core-winrt-l1-1-0

RoActivateInstance

ntdll

NtClose NtOpenKeyEx NtQueryValueKey RtlFormatCurrentUserKeyPath RtlFreeUnicodeString RtlInitUnicodeString

Name

.text

Size

1.3MB

Virtual Size

1.3MB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

233KB

Virtual Size

232KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

63KB

Virtual Size

105KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

49KB

Virtual Size

48KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.gxfg

Size

11KB

Virtual Size

10KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.retplne

Size

512B

Virtual Size

156B

Characteristics

Name

.tls

Size

512B

Virtual Size

481B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

_RDATA

Size

512B

Virtual Size

348B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

7KB

Virtual Size

6KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

572KB

Virtual Size

576KB

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_734abeddf00662a86cbaa71c8cdd462b_ryuk

dbghelp

oleaut32

kernel32

crypt32

rpcrt4

api-ms-win-core-winrt-string-l1-1-0

api-ms-win-core-winrt-l1-1-0

ntdll

generic