2024-05-30_6c172a9bac6184ed7d2e4ccc0f2e4d8c_ryuk

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General

Target
2024-05-30_6c172a9bac6184ed7d2e4ccc0f2e4d8c_ryuk
Size 2.1MB
Sample240530-b6p62sbb24
SHA256 f8a2f36c168b39cb58b41e94405c0e1c39124b6e37d301ef8c3869e0c92b9379
MD5 6c172a9bac6184ed7d2e4ccc0f2e4d8c
SHA1 9ea1036a205ebc1a021502a45491fbec5799d094
SHA512 eff1744486b1185fc2e7a6fea09febe81148509417e11bf1454be9fc527021772811c1710004d10895a8665fe03aa9e6d6403095d95dc9494b5a27c13c4ccd12
SSDEEP 49152:2a/3xXBSZ4K5MJ1LvTMxbfsYBYSgxu9+fw4TggDUYmvFur31yAipQCtXxc0H:4Z4K5MJabfsYNuU7dG1yfpVBlH
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-05-30_6c172a9bac6184ed7d2e4ccc0f2e4d8c_ryuk

File Explorer

2024-05-30_6c172a9bac6184ed7d2e4ccc0f2e4d8c_ryuk

.exe 2.1MB

2024-05-30_6c172a9bac6184ed7d2e4ccc0f2e4d8c_ryuk

IMPHASH 2f62bdfdacc172027de97aa3f9293247
SHA256 f8a2f36c168b39cb58b41e94405c0e1c39124b6e37d301ef8c3869e0c92b9379
MD5 6c172a9bac6184ed7d2e4ccc0f2e4d8c
SHA1 9ea1036a205ebc1a021502a45491fbec5799d094
SHA512 eff1744486b1185fc2e7a6fea09febe81148509417e11bf1454be9fc527021772811c1710004d10895a8665fe03aa9e6d6403095d95dc9494b5a27c13c4ccd12
SSDEEP 49152:2a/3xXBSZ4K5MJ1LvTMxbfsYBYSgxu9+fw4TggDUYmvFur31yAipQCtXxc0H:4Z4K5MJabfsYNuU7dG1yfpVBlH
MD5 SHA1 SHA512 SSDEEP

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

690608

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

elevation_service.exe.pdb

advapi32

AddAce CopySid CreateProcessAsUserW EventRegister EventUnregister EventWrite GetAclInformation GetLengthSid GetSecurityDescriptorControl GetSecurityDescriptorDacl GetSecurityDescriptorGroup GetSecurityDescriptorOwner GetSecurityDescriptorSacl GetSidLengthRequired GetSidSubAuthority InitializeAcl InitializeSecurityDescriptor InitializeSid IsValidSid MakeAbsoluteSD RegCloseKey RegOpenKeyExW RegQueryValueExW RegisterServiceCtrlHandlerW SetSecurityDescriptorDacl SetSecurityDescriptorGroup SetSecurityDescriptorOwner SetServiceStatus StartServiceCtrlDispatcherW SystemFunction036

oleaut32

SysAllocStringByteLen SysStringByteLen

user32

AllowSetForegroundWindow GetActiveWindow UnregisterClassW

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 FormatMessageA FreeEnvironmentStringsW FreeLibrary FreeLibraryAndExitThread GetACP GetCPInfo GetCommandLineA GetCommandLineW GetConsoleMode GetConsoleOutputCP GetCurrentDirectoryW GetCurrentProcess GetCurrentProcessId GetCurrentThread GetCurrentThreadId GetDateFormatW GetDriveTypeW GetEnvironmentStringsW GetEnvironmentVariableW GetExitCodeProcess GetFileAttributesW GetFileSizeEx GetFileType GetFullPathNameW GetLastError GetLocalTime GetLocaleInfoW 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 LCMapStringW LeaveCriticalSection LoadLibraryExA LoadLibraryExW LocalFree MapViewOfFile MoveFileExW MultiByteToWideChar OpenProcess OutputDebugStringA OutputDebugStringW QueryFullProcessImageNameA QueryPerformanceCounter QueryPerformanceFrequency QueryThreadCycleTime RaiseException ReadConsoleW ReadFile ReleaseSRWLockExclusive ReleaseSRWLockShared RemoveDirectoryW ResetEvent RtlCaptureContext RtlCaptureStackBackTrace RtlLookupFunctionEntry RtlPcToFileHeader RtlUnwind RtlUnwindEx RtlVirtualUnwind SetEndOfFile SetEnvironmentVariableW SetEvent SetFileAttributesW SetFilePointer SetFilePointerEx SetFileTime SetHandleInformation SetLastError SetStdHandle SetThreadPriority SetUnhandledExceptionFilter Sleep SleepConditionVariableSRW SystemTimeToFileTime TerminateProcess TlsAlloc TlsFree TlsGetValue TlsSetValue TryAcquireSRWLockExclusive TzSpecificLocalTimeToSystemTime UnhandledExceptionFilter UnmapViewOfFile UnregisterWaitEx UpdateProcThreadAttribute VerSetConditionMask VerifyVersionInfoW VirtualAlloc VirtualFree VirtualProtect VirtualQuery WaitForSingleObject WaitForSingleObjectEx WakeAllConditionVariable WakeConditionVariable WideCharToMultiByte WriteConsoleW WriteFile lstrcmpiW

ole32

CoAddRefServerProcess CoImpersonateClient CoInitializeEx CoInitializeSecurity CoRegisterClassObject CoRegisterInitializeSpy CoReleaseServerProcess CoResumeClassObjects CoRevertToSelf CoRevokeClassObject CoRevokeInitializeSpy CoTaskMemFree CoUninitialize IIDFromString

crypt32

CryptProtectData CryptUnprotectData

rpcrt4

I_RpcOpenClientProcess

shell32

CommandLineToArgvW SHGetFolderPathW SHGetKnownFolderPath ShellExecuteExW

userenv

CreateEnvironmentBlock DestroyEnvironmentBlock

shlwapi

PathMatchSpecW

winmm

timeGetTime

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

197KB

Virtual Size

196KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

61KB

Virtual Size

100KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

42KB

Virtual Size

42KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.00cfg

Size

512B

Virtual Size

40B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.gxfg

Size

10KB

Virtual Size

10KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.retplne

Size

512B

Virtual Size

108B

Characteristics

Name

.tls

Size

512B

Virtual Size

385B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.voltbl

Size

512B

Virtual Size

70B

Characteristics

Name

_RDATA

Size

512B

Virtual Size

244B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

6KB

Virtual Size

5KB

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

2024-05-30_6c172a9bac6184ed7d2e4ccc0f2e4d8c_ryuk

advapi32

oleaut32

user32

kernel32

ole32

crypt32

rpcrt4

shell32

userenv

shlwapi

winmm

generic