CortexLoaderFinder[.]exe

General

Target
CortexLoaderFinder.exe
Size 7.6MB
Sample261030-jrmflsxtcx
SHA256 ad3be19b2dd10d1989a1d9ff99109cf13fc3d0945a16d60af656c171b49bf5b4
MD5 34865e15d67674d37a17c2b4125a747a
SHA1 1cd727c751ad002b5a8f1adf2ae689fea0093379
SHA512 da2d53ab9e96ce9f3da61793354dbd322320a8fe859bd0a9db52ad36a7186731b687022079278bd8cd8229e69b8bde2bd376bea24499a95d1ed76dd9c2146d58
SSDEEP 196608:ACJP11W903eV4Q2tpDjIIAcwD3CTQRPRt4L:3JDW+eGQi9jo5bi
TLSH
T1EA863394A2D95AF5E872827E89A68127F631BC610B7CC6D783F4D2523F232C55E7E304
MD5 SHA1 SHA512 SSDEEP TLSH

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
CortexLoaderFinder.exe

File Explorer

CortexLoaderFinder.exe

.exe 7.6MB
tg_peer_downloads.pyc

41KB

CortexLoaderFinder.exe

IMPHASH ed71b47f404234b025eb1f9c0778046c
SHA256 ad3be19b2dd10d1989a1d9ff99109cf13fc3d0945a16d60af656c171b49bf5b4
MD5 34865e15d67674d37a17c2b4125a747a
SHA1 1cd727c751ad002b5a8f1adf2ae689fea0093379
SHA512 da2d53ab9e96ce9f3da61793354dbd322320a8fe859bd0a9db52ad36a7186731b687022079278bd8cd8229e69b8bde2bd376bea24499a95d1ed76dd9c2146d58
SSDEEP 196608:ACJP11W903eV4Q2tpDjIIAcwD3CTQRPRt4L:3JDW+eGQi9jo5bi
TLSH
T1EA863394A2D95AF5E872827E89A68127F631BC610B7CC6D783F4D2523F232C55E7E304
MD5 SHA1 SHA512 SSDEEP TLSH

windows:6 windows x64 arch:x64

Detects Pyinstaller

pyinstaller
Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

0

Major OS version

6

Entry point

55488

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_GUARD_CF IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB paths

user32

GetCursorPos ShutdownBlockReasonCreate GetWindowThreadProcessId SetWindowLongPtrW GetWindowLongPtrW MsgWaitForMultipleObjects ShowWindow DestroyWindow CreateWindowExW RegisterClassW DefWindowProcW PeekMessageW DispatchMessageW TranslateMessage GetMessageW GetMonitorInfoW MonitorFromPoint GetSystemMetrics

kernel32

GetTimeZoneInformation GetProcessHeap FreeEnvironmentStringsW GetEnvironmentStringsW GetCPInfo GetOEMCP GetACP IsValidCodePage GetStringTypeW GetFileAttributesExW SetEnvironmentVariableW FlushFileBuffers GetLastError FreeLibrary GetProcAddress LoadLibraryExW FormatMessageW CloseHandle GetCurrentProcess QueryFullProcessImageNameW SetDllDirectoryW CreateSymbolicLinkW SetErrorMode GetCurrentProcessId OpenProcess CreateToolhelp32Snapshot Process32FirstW HeapSize CreateDirectoryW GetCommandLineW GetEnvironmentVariableW ExpandEnvironmentStringsW DeleteFileW FindClose FindFirstFileW FindNextFileW GetDriveTypeW RemoveDirectoryW GetTempPathW QueryPerformanceCounter QueryPerformanceFrequency WaitForSingleObject Sleep TerminateProcess GetExitCodeProcess CreateProcessW GetStartupInfoW LocalFree SetConsoleCtrlHandler GetConsoleWindow K32EnumProcessModules K32GetModuleFileNameExW CreateFileW FindFirstFileExW MultiByteToWideChar WideCharToMultiByte HeapReAlloc WriteConsoleW SetEndOfFile Process32NextW GetModuleHandleW GetCurrentThreadId GetSystemTimeAsFileTime InitializeSListHead SetUnhandledExceptionFilter RtlUnwindEx SetLastError FlsAlloc FlsGetValue FlsSetValue FlsFree EnterCriticalSection LeaveCriticalSection InitializeCriticalSectionEx DeleteCriticalSection RtlLookupFunctionEntry EncodePointer RaiseException RtlPcToFileHeader GetFileInformationByHandle GetFileType PeekNamedPipe SystemTimeToTzSpecificLocalTime FileTimeToSystemTime ReadFile GetFullPathNameW SetStdHandle GetStdHandle WriteFile GetModuleFileNameW ExitProcess GetModuleHandleExW GetCommandLineA IsProcessorFeaturePresent HeapFree RtlCaptureContext RtlVirtualUnwind IsDebuggerPresent UnhandledExceptionFilter GetConsoleMode ReadConsoleW SetFilePointerEx GetConsoleOutputCP GetFileSizeEx HeapAlloc GetCurrentDirectoryW VirtualProtect CompareStringW LCMapStringW

advapi32

ConvertSidToStringSidW GetTokenInformation OpenProcessToken ConvertStringSecurityDescriptorToSecurityDescriptorW

Name

.text

Size

183KB

Virtual Size

183KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

80KB

Virtual Size

80KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

3KB

Virtual Size

18KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

9KB

Virtual Size

9KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.fptable

Size

512B

Virtual Size

256B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

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

CortexLoaderFinder.exe

user32

kernel32

advapi32

generic

tg_peer_downloads.pyc