2024-06-07_ccf28af40d78acf12f05894559150e70_ryuk

General

Target
2024-06-07_ccf28af40d78acf12f05894559150e70_ryuk
Size 11.9MB
Sample240607-cq2qkshb44
SHA256 cdf13eedd60a35d7ed8f74721e36c8f77505fc4da9ec6ae34c0f4e47f73c590d
MD5 ccf28af40d78acf12f05894559150e70
SHA1 8165f8862c491731cf1adeb9469ee5cdd7b9e650
SHA512 5c5aa1e6d6540568b31b85d8c8d6d2e4ffaea8e211575a4ccdfccebae349a5ab95fce23d64aa18c14d407af83880e7f2a9cc071eb919ef42ac11fec85500e817
SSDEEP 196608:ybOOqTXrTaXPA4pzxw9BK+gpvDq9onJ5hrZER5xQ3jo4U648RmU/3ZlsPvt7+sTa:HTXafVxw9BKpbq9c5hlER5xA26tN3ZWp
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_ccf28af40d78acf12f05894559150e70_ryuk

File Explorer

2024-06-07_ccf28af40d78acf12f05894559150e70_ryuk

.exe 11.9MB
payload.pyc

15KB

2024-06-07_ccf28af40d78acf12f05894559150e70_ryuk

IMPHASH 08c12a4e8a6a5e4388e0bc669ebc661c
SHA256 cdf13eedd60a35d7ed8f74721e36c8f77505fc4da9ec6ae34c0f4e47f73c590d
MD5 ccf28af40d78acf12f05894559150e70
SHA1 8165f8862c491731cf1adeb9469ee5cdd7b9e650
SHA512 5c5aa1e6d6540568b31b85d8c8d6d2e4ffaea8e211575a4ccdfccebae349a5ab95fce23d64aa18c14d407af83880e7f2a9cc071eb919ef42ac11fec85500e817
SSDEEP 196608:ybOOqTXrTaXPA4pzxw9BK+gpvDq9onJ5hrZER5xQ3jo4U648RmU/3ZlsPvt7+sTa:HTXafVxw9BKpbq9c5hlER5xA26tN3ZWp
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

35000

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 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

129KB

Virtual Size

128KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

62KB

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

115KB

Virtual Size

115KB

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_ccf28af40d78acf12f05894559150e70_ryuk

user32

kernel32

advapi32

ws2_32

generic

payload.pyc