2024-04-03_eef3f77a51cedff224a7e7f8f1c1170a_ryuk

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General

Target
2024-04-03_eef3f77a51cedff224a7e7f8f1c1170a_ryuk
Size 2.1MB
Sample240403-mk2thacb6x
SHA256 39afdf1e879a87ccd26eb6a1977391482929f6b0c0236e621ca34572345d9f28
MD5 eef3f77a51cedff224a7e7f8f1c1170a
SHA1 ed5fd13366a5a5394f0739cce059f3866b6abc2f
SHA512 077acc9e7f2706893094b36a6b64f2d56ef8213db64b0d140073e856a15ed30c8349877785eba6e79fb938b69adb77ec8fe3a3ec9c700a588727b2573599ba58
SSDEEP 49152:0XWtcDco9YXPtSjeJgEjTmucUgDUYmvFur31yAipQCtXxc0H:0SAYXPwtEjEVU7dG1yfpVBlH
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-04-03_eef3f77a51cedff224a7e7f8f1c1170a_ryuk

File Explorer

2024-04-03_eef3f77a51cedff224a7e7f8f1c1170a_ryuk

.exe 2.1MB

2024-04-03_eef3f77a51cedff224a7e7f8f1c1170a_ryuk

IMPHASH a3f0f114dbae26733f0620e8a4f28aeb
SHA256 39afdf1e879a87ccd26eb6a1977391482929f6b0c0236e621ca34572345d9f28
MD5 eef3f77a51cedff224a7e7f8f1c1170a
SHA1 ed5fd13366a5a5394f0739cce059f3866b6abc2f
SHA512 077acc9e7f2706893094b36a6b64f2d56ef8213db64b0d140073e856a15ed30c8349877785eba6e79fb938b69adb77ec8fe3a3ec9c700a588727b2573599ba58
SSDEEP 49152:0XWtcDco9YXPtSjeJgEjTmucUgDUYmvFur31yAipQCtXxc0H:0SAYXPwtEjEVU7dG1yfpVBlH
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

522672

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

msedge_pwa_launcher.exe.pdb

advapi32

CreateProcessAsUserW EventRegister EventUnregister EventWrite RegCloseKey RegCreateKeyExW RegGetValueW RegOpenKeyExW RegQueryValueExW RegSetValueExW SystemFunction036

kernel32

AcquireSRWLockExclusive AssignProcessToJobObject CloseHandle CompareStringW CreateEventW CreateFileA CreateFileMappingW CreateFileW CreateProcessW CreateThread DeleteCriticalSection DeleteFileW DeleteProcThreadAttributeList DuplicateHandle EncodePointer EnterCriticalSection EnumSystemLocalesW ExitProcess ExitThread ExpandEnvironmentStringsW FindClose FindFirstFileExW FindNextFileW FlsAlloc FlsSetValue FlushFileBuffers FormatMessageA FreeEnvironmentStringsW FreeLibrary FreeLibraryAndExitThread GetACP GetCPInfo GetCommandLineA GetCommandLineW GetConsoleMode GetConsoleOutputCP GetCurrentDirectoryW GetCurrentProcess GetCurrentProcessId GetCurrentThread GetCurrentThreadId GetDateFormatW GetDriveTypeW GetEnvironmentStringsW GetEnvironmentVariableW GetExitCodeProcess GetFileAttributesW GetFileInformationByHandle 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 GetTimeFormatW GetTimeZoneInformation GetUserDefaultLCID GetVersionExW GetWindowsDirectoryW InitOnceExecuteOnce InitializeCriticalSectionAndSpinCount InitializeCriticalSectionEx InitializeProcThreadAttributeList InitializeSListHead IsDebuggerPresent IsProcessorFeaturePresent IsValidCodePage IsValidLocale IsWow64Process LCMapStringW LeaveCriticalSection LoadLibraryExA LoadLibraryExW LocalFree MapViewOfFile MultiByteToWideChar OutputDebugStringA OutputDebugStringW PostQueuedCompletionStatus QueryPerformanceCounter QueryPerformanceFrequency QueryThreadCycleTime RaiseException ReadConsoleW ReadFile ReleaseSRWLockExclusive ResetEvent RtlCaptureContext RtlCaptureStackBackTrace RtlLookupFunctionEntry RtlPcToFileHeader RtlUnwind RtlUnwindEx RtlVirtualUnwind SetEndOfFile SetEnvironmentVariableW SetEvent SetFilePointerEx SetHandleInformation SetLastError SetStdHandle SetThreadPriority SetUnhandledExceptionFilter Sleep SleepConditionVariableSRW TerminateProcess TlsAlloc TlsFree TlsGetValue TlsSetValue TryAcquireSRWLockExclusive UnhandledExceptionFilter UnmapViewOfFile UnregisterWaitEx UpdateProcThreadAttribute VerSetConditionMask VerifyVersionInfoW VirtualAlloc VirtualFree VirtualProtect VirtualQuery WaitForSingleObject WaitForSingleObjectEx WakeAllConditionVariable WakeConditionVariable WideCharToMultiByte WriteConsoleW WriteFile lstrcmpiW

shell32

CommandLineToArgvW SHGetFolderPathW SHGetKnownFolderPath

userenv

CreateEnvironmentBlock DestroyEnvironmentBlock

user32

AllowSetForegroundWindow PostMessageW

winmm

timeGetTime

ole32

CoInitializeEx CoRegisterInitializeSpy CoRevokeInitializeSpy CoTaskMemFree CoUninitialize

Name

.text

Size

1.0MB

Virtual Size

1.0MB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

362KB

Virtual Size

361KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

14KB

Virtual Size

48KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

34KB

Virtual Size

33KB

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

.retplne

Size

512B

Virtual Size

36B

Characteristics

Name

.tls

Size

512B

Virtual Size

289B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

_RDATA

Size

512B

Virtual Size

244B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

71KB

Virtual Size

71KB

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

2024-04-03_eef3f77a51cedff224a7e7f8f1c1170a_ryuk

advapi32

kernel32

shell32

userenv

user32

winmm

ole32

generic