2025-03-18_7e8bef0e5baa023171cb93339e761b86_ryuk

General

Target
2025-03-18_7e8bef0e5baa023171cb93339e761b86_ryuk
Size 11.8MB
Sample250318-b64pfastdv
SHA256 e19d00767aa93ad6e6de89901fe2a2ad389dd3824036ac9a796fdd50723e0707
MD5 7e8bef0e5baa023171cb93339e761b86
SHA1 5c2b59771c1e0af962cd6e44ebd008da53b6823d
SHA512 5837eea02955d99ebcb01fe8fe427985bd45d8088e4c8d02bbc348fa1666b9cbc7c7961cfc313e15ab6b85d824fdd0ea278a8369cb626b2844485412d398d486
SSDEEP 196608:pT0OqTXrTaXPA4pzxw9BK+GIgr9onJ5hrZERpyiU8AdZYJERS48RmU/3ZlsPvar:KTXafVxw9BNPi9c5hlERlAdZYygtN3Z1
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
2025-03-18_7e8bef0e5baa023171cb93339e761b86_ryuk

File Explorer

2025-03-18_7e8bef0e5baa023171cb93339e761b86_ryuk

.exe 11.8MB
payload.pyc

14KB

2025-03-18_7e8bef0e5baa023171cb93339e761b86_ryuk

IMPHASH 08c12a4e8a6a5e4388e0bc669ebc661c
SHA256 e19d00767aa93ad6e6de89901fe2a2ad389dd3824036ac9a796fdd50723e0707
MD5 7e8bef0e5baa023171cb93339e761b86
SHA1 5c2b59771c1e0af962cd6e44ebd008da53b6823d
SHA512 5837eea02955d99ebcb01fe8fe427985bd45d8088e4c8d02bbc348fa1666b9cbc7c7961cfc313e15ab6b85d824fdd0ea278a8369cb626b2844485412d398d486
SSDEEP 196608:pT0OqTXrTaXPA4pzxw9BK+GIgr9onJ5hrZERpyiU8AdZYJERS48RmU/3ZlsPvar:KTXafVxw9BNPi9c5hlERlAdZYygtN3Z1
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

60KB

Virtual Size

59KB

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

2025-03-18_7e8bef0e5baa023171cb93339e761b86_ryuk

user32

kernel32

advapi32

ws2_32

generic

payload.pyc