WindowsUpdate[.]exe

General

Target
WindowsUpdate.exe
Size 189KB
Sample260718-x79sqsd151
SHA256 0a3061ce09d7e3cb2b3d3453432da69ee83b59b782853d1f6462fd177db75a7a
MD5 342921124f76e174afe304378f83b131
SHA1 41992224badfd69a5c54c81745872ac29abc91cd
SHA512 3bf0513cb39fde7ecfc80a3a44182ab56a4743d8cea973a52a203d1c7dd796d565683cec29875269564db855b3b91d8dd34e60ea57de3c24f2f675b28afe3b22
SSDEEP 3072:90DxAbBeJSzeMm8NmuQ2s6J8J22buAs0FNmhMn+IhNrY:u9A5zeMmkrM8Yl
TLSH
T1F514274BAA6A20E0E1758134477307E29B6D3D355692DB9F43D03B169E3E2D0FD29B32
MD5 SHA1 SHA512 SSDEEP TLSH

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
WindowsUpdate.exe

File Explorer

WindowsUpdate.exe

.exe 189KB

WindowsUpdate.exe

IMPHASH 9a5ce9cc0ff609d5b4e33d5c57eaa35a
SHA256 0a3061ce09d7e3cb2b3d3453432da69ee83b59b782853d1f6462fd177db75a7a
MD5 342921124f76e174afe304378f83b131
SHA1 41992224badfd69a5c54c81745872ac29abc91cd
SHA512 3bf0513cb39fde7ecfc80a3a44182ab56a4743d8cea973a52a203d1c7dd796d565683cec29875269564db855b3b91d8dd34e60ea57de3c24f2f675b28afe3b22
SSDEEP 3072:90DxAbBeJSzeMm8NmuQ2s6J8J22buAs0FNmhMn+IhNrY:u9A5zeMmkrM8Yl
TLSH
T1F514274BAA6A20E0E1758134477307E29B6D3D355692DB9F43D03B169E3E2D0FD29B32
MD5 SHA1 SHA512 SSDEEP TLSH

windows:6 windows x64 arch:x64

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

0

Major OS version

6

Entry point

8680

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

kernel32

GetModuleFileNameA SizeofResource VirtualProtect VirtualFree VirtualAlloc FindResourceA GetEnvironmentVariableA WaitForSingleObject MultiByteToWideChar CopyFileA GetLastError LockResource CloseHandle CreateThread LoadResource SetFileAttributesA GetModuleHandleW WideCharToMultiByte WriteConsoleW CreateFileW SetFilePointerEx GetConsoleMode GetConsoleOutputCP FlushFileBuffers RtlCaptureContext RtlLookupFunctionEntry RtlVirtualUnwind UnhandledExceptionFilter SetUnhandledExceptionFilter GetCurrentProcess TerminateProcess IsProcessorFeaturePresent QueryPerformanceCounter GetCurrentProcessId GetCurrentThreadId GetSystemTimeAsFileTime InitializeSListHead IsDebuggerPresent GetStartupInfoW RtlUnwindEx SetLastError EnterCriticalSection LeaveCriticalSection DeleteCriticalSection InitializeCriticalSectionAndSpinCount TlsAlloc TlsGetValue TlsSetValue TlsFree FreeLibrary GetProcAddress LoadLibraryExW EncodePointer RaiseException RtlPcToFileHeader GetStdHandle WriteFile GetModuleFileNameW ExitProcess GetModuleHandleExW HeapAlloc HeapFree FindClose FindFirstFileExW FindNextFileW IsValidCodePage GetACP GetOEMCP GetCPInfo GetCommandLineA GetCommandLineW GetEnvironmentStringsW FreeEnvironmentStringsW SetStdHandle GetFileType GetStringTypeW FlsAlloc FlsGetValue FlsSetValue FlsFree InitializeCriticalSectionEx LCMapStringW GetProcessHeap HeapSize HeapReAlloc

shell32

SHCreateDirectoryExA SHGetKnownFolderPath

ole32

CoUninitialize CoCreateInstance CoTaskMemFree CoInitialize

Name

.text

Size

56KB

Virtual Size

56KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

39KB

Virtual Size

38KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

3KB

Virtual Size

14KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.pdata

Size

4KB

Virtual Size

3KB

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

83KB

Virtual Size

83KB

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

WindowsUpdate.exe

kernel32

shell32

ole32

generic