2024-06-07_0358956d89b008681fc0140ced5ef5c7_ryuk

General

Target
2024-06-07_0358956d89b008681fc0140ced5ef5c7_ryuk
Size 5.3MB
Sample240607-a38csaef3y
SHA256 b21ff1bac6c34d8f4d3fcbfe387a540f467b22b80b5e7cee4592db32ff3a8191
MD5 0358956d89b008681fc0140ced5ef5c7
SHA1 04dd00d6b4be8097be674cd35df07ce223a0ad20
SHA512 4bb36bfe85e5cf6abd55de10eaa7a4a490e739e4a9e100f0b8a70c9543d6a8060d7b664636d0c3e949575fac05ff4a6f55bbde22a0b2af3c4305bb61b0ad5424
SSDEEP 98304:PJhqE6OVQWJuhswoYv5eONVJSVlnsfGm2ceemmZqAZ8a+t1Twe2505IIbsONq4AC:POE/uWJysVYvsOdknseOeehZqAqa+3TM
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_0358956d89b008681fc0140ced5ef5c7_ryuk

File Explorer

2024-06-07_0358956d89b008681fc0140ced5ef5c7_ryuk

.exe 5.3MB
payload.pyc

1KB

2024-06-07_0358956d89b008681fc0140ced5ef5c7_ryuk

IMPHASH 58053a2a3020fdc7713b576ad93bf7bd
SHA256 b21ff1bac6c34d8f4d3fcbfe387a540f467b22b80b5e7cee4592db32ff3a8191
MD5 0358956d89b008681fc0140ced5ef5c7
SHA1 04dd00d6b4be8097be674cd35df07ce223a0ad20
SHA512 4bb36bfe85e5cf6abd55de10eaa7a4a490e739e4a9e100f0b8a70c9543d6a8060d7b664636d0c3e949575fac05ff4a6f55bbde22a0b2af3c4305bb61b0ad5424
SSDEEP 98304:PJhqE6OVQWJuhswoYv5eONVJSVlnsfGm2ceemmZqAZ8a+t1Twe2505IIbsONq4AC:POE/uWJysVYvsOdknseOeehZqAqa+3TM
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

34388

Magic Number

523

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_CUI

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

kernel32

GetModuleFileNameW GetProcAddress GetCommandLineW GetEnvironmentVariableW SetEnvironmentVariableW ExpandEnvironmentStringsW GetTempPathW WaitForSingleObject SetDllDirectoryW GetExitCodeProcess CreateProcessW GetStartupInfoW LoadLibraryExW CreateDirectoryW FormatMessageW LoadLibraryA MultiByteToWideChar WideCharToMultiByte Sleep GetLastError SetEndOfFile HeapReAlloc 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 GetDriveTypeW 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 GetTimeZoneInformation HeapSize RaiseException

advapi32

ConvertStringSecurityDescriptorToSecurityDescriptorW

ws2_32

ntohl

Name

.text

Size

132KB

Virtual Size

131KB

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

21KB

Virtual Size

21KB

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_0358956d89b008681fc0140ced5ef5c7_ryuk

kernel32

advapi32

ws2_32

generic

payload.pyc