2024-06-07_6efc7e936fa8c77ac03a918e74eef93d_ryuk

General

Target
2024-06-07_6efc7e936fa8c77ac03a918e74eef93d_ryuk
Size 11.0MB
Sample240607-jwexbsch7x
SHA256 b0dc66637ad1043b6304d6147bff20b5743e803e1a0b8a3839ddd7199f0b7d07
MD5 6efc7e936fa8c77ac03a918e74eef93d
SHA1 d2ece63dbd800c8737a3293230bf4c9fef4330a0
SHA512 1965f19d6d67610ac51cfb8bcd16bce7cadb2d66148eb49c54f1277cca26d698968bcf83edae1f5356c2be732da40d5daaaea0ccca87580fd6da661ed39fb665
SSDEEP 196608:EBc7+jX+7+GI+r9onJ5hrZERlyiU8AdZYJERXEzsDO48RmU/qZlsPvarTwRN8Cph:qcOPA9c5hlERJAdZYy90RtNqZWarMVnx
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

pyinstaller

Malware Config

Signatures

Detects Pyinstaller 1 IoCs

pyinstaller

resource	yara_rule
sample	pyinstaller

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
2024-06-07_6efc7e936fa8c77ac03a918e74eef93d_ryuk

File Explorer

2024-06-07_6efc7e936fa8c77ac03a918e74eef93d_ryuk

.exe 11.0MB
Build3.pyc

9KB

2024-06-07_6efc7e936fa8c77ac03a918e74eef93d_ryuk

IMPHASH ba54e48d0f0346b349e9f7a2c8ecaf5c
SHA256 b0dc66637ad1043b6304d6147bff20b5743e803e1a0b8a3839ddd7199f0b7d07
MD5 6efc7e936fa8c77ac03a918e74eef93d
SHA1 d2ece63dbd800c8737a3293230bf4c9fef4330a0
SHA512 1965f19d6d67610ac51cfb8bcd16bce7cadb2d66148eb49c54f1277cca26d698968bcf83edae1f5356c2be732da40d5daaaea0ccca87580fd6da661ed39fb665
SSDEEP 196608:EBc7+jX+7+GI+r9onJ5hrZERlyiU8AdZYJERXEzsDO48RmU/qZlsPvarTwRN8Cph:qcOPA9c5hlERJAdZYy90RtNqZWarMVnx
MD5 SHA1 SHA512 SSDEEP

windows:5 windows x64 arch:x64

Detects Pyinstaller

pyinstaller
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

2

Major OS version

5

Entry point

34824

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_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB paths

user32

MessageBoxW MessageBoxA

kernel32

HeapReAlloc GetLastError SetDllDirectoryW GetModuleFileNameW GetProcAddress GetCommandLineW GetEnvironmentVariableW SetEnvironmentVariableW ExpandEnvironmentStringsW GetTempPathW SetEndOfFile Sleep GetExitCodeProcess CreateProcessW GetStartupInfoW LoadLibraryExW CreateDirectoryW FormatMessageW LoadLibraryA MultiByteToWideChar WideCharToMultiByte WaitForSingleObject GetDriveTypeW HeapSize GetTimeZoneInformation RtlCaptureContext RtlLookupFunctionEntry RtlVirtualUnwind UnhandledExceptionFilter SetUnhandledExceptionFilter GetCurrentProcess TerminateProcess IsProcessorFeaturePresent QueryPerformanceCounter GetCurrentProcessId GetCurrentThreadId GetSystemTimeAsFileTime InitializeSListHead IsDebuggerPresent GetModuleHandleW RtlUnwindEx SetLastError EnterCriticalSection LeaveCriticalSection DeleteCriticalSection InitializeCriticalSectionAndSpinCount TlsAlloc TlsGetValue TlsSetValue TlsFree FreeLibrary GetCommandLineA ReadFile CreateFileW RaiseException GetFileType CloseHandle PeekNamedPipe SystemTimeToTzSpecificLocalTime FileTimeToSystemTime GetFullPathNameW GetFullPathNameA RemoveDirectoryW FindClose FindFirstFileExW FindNextFileW SetStdHandle SetConsoleCtrlHandler DeleteFileW GetStdHandle WriteFile ExitProcess GetModuleHandleExW GetACP HeapFree HeapAlloc GetConsoleMode ReadConsoleW SetFilePointerEx GetConsoleCP CompareStringW LCMapStringW GetCurrentDirectoryW FlushFileBuffers SetEnvironmentVariableA GetFileAttributesExW IsValidCodePage GetOEMCP GetCPInfo GetEnvironmentStringsW FreeEnvironmentStringsW GetStringTypeW GetProcessHeap WriteConsoleW

advapi32

ConvertStringSecurityDescriptorToSecurityDescriptorW

ws2_32

ntohl

Name

.text

Size

130KB

Virtual Size

129KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

61KB

Virtual Size

61KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

3KB

Virtual Size

44KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

7KB

Virtual Size

7KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.gfids

Size

512B

Virtual Size

172B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.rsrc

Size

321KB

Virtual Size

321KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

2KB

Virtual Size

1KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

2024-06-07_6efc7e936fa8c77ac03a918e74eef93d_ryuk

user32

kernel32

advapi32

ws2_32

generic

Build3.pyc