Build[.]exe | Triage™

General

Target
Build.exe
Size 31.6MB
Sample240716-qy28zayalg
SHA256 0b6bab94b09244db88f470c10372a7e6d6d1286d6a10b63d9617f19415a3c2e1
MD5 28f7e77090b0fe1bcb891d09676e7ff0
SHA1 bfeaab2f17b342cbd884204cb6cc6be7c527f292
SHA512 6341b08998cab66e07de36e08125819badcff9671d8c775a86a9b8808e3f1dca25e2f56c5bcddb57067e3936b9e641555eb6ea47b0fdbda2c2103d0e5a586504
SSDEEP 786432:SeMRQqeCr6EBCuQF2eBjQvhVElf1J+Xx64cFxBW:SePqfOEbwBjQvYpg6bxBW
MD5 SHA1 SHA512 SSDEEP

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
Build.exe

File Explorer

Build.exe

.exe 31.6MB

Build.exe

IMPHASH 75e9596d74d063246ba6f3ac7c5369a0
SHA256 0b6bab94b09244db88f470c10372a7e6d6d1286d6a10b63d9617f19415a3c2e1
MD5 28f7e77090b0fe1bcb891d09676e7ff0
SHA1 bfeaab2f17b342cbd884204cb6cc6be7c527f292
SHA512 6341b08998cab66e07de36e08125819badcff9671d8c775a86a9b8808e3f1dca25e2f56c5bcddb57067e3936b9e641555eb6ea47b0fdbda2c2103d0e5a586504
SSDEEP 786432:SeMRQqeCr6EBCuQF2eBjQvhVElf1J+Xx64cFxBW:SePqfOEbwBjQvYpg6bxBW
MD5 SHA1 SHA512 SSDEEP

windows:5 windows x86 arch:x86

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

1

Major OS version

5

Entry point

138576

Magic Number

267

Subsystem

IMAGE_SUBSYSTEM_WINDOWS_GUI

DLL Characteristics

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_32BIT_MACHINE

PDB paths

D:\Projects\WinRAR\sfx\build\sfxrar32\Release\sfxrar.pdb

kernel32

GetLastError SetLastError FormatMessageW GetCurrentProcess DeviceIoControl SetFileTime CloseHandle CreateDirectoryW RemoveDirectoryW CreateFileW DeleteFileW CreateHardLinkW GetShortPathNameW GetLongPathNameW MoveFileW GetFileType GetStdHandle WriteFile ReadFile FlushFileBuffers SetEndOfFile SetFilePointer GetCurrentProcessId SetFileAttributesW GetFileAttributesW FindClose FindFirstFileW FindNextFileW InterlockedDecrement GetVersionExW GetCurrentDirectoryW GetFullPathNameW FoldStringW GetModuleFileNameW GetModuleHandleW FindResourceW FreeLibrary GetProcAddress ExitProcess SetThreadExecutionState Sleep LoadLibraryW GetSystemDirectoryW CompareStringW AllocConsole FreeConsole AttachConsole WriteConsoleW GetProcessAffinityMask CreateThread SetThreadPriority InitializeCriticalSection EnterCriticalSection LeaveCriticalSection DeleteCriticalSection SetEvent ResetEvent ReleaseSemaphore WaitForSingleObject CreateEventW CreateSemaphoreW GetSystemTime SystemTimeToTzSpecificLocalTime TzSpecificLocalTimeToSystemTime SystemTimeToFileTime FileTimeToLocalFileTime LocalFileTimeToFileTime FileTimeToSystemTime GetCPInfo IsDBCSLeadByte MultiByteToWideChar WideCharToMultiByte GlobalAlloc LockResource GlobalLock GlobalUnlock GlobalFree LoadResource SizeofResource SetCurrentDirectoryW GetTimeFormatW GetDateFormatW LocalFree GetExitCodeProcess GetLocalTime GetTickCount MapViewOfFile UnmapViewOfFile CreateFileMappingW OpenFileMappingW GetCommandLineW SetEnvironmentVariableW ExpandEnvironmentStringsW GetTempPathW MoveFileExW GetLocaleInfoW GetNumberFormatW DecodePointer SetFilePointerEx GetConsoleMode GetConsoleCP HeapSize SetStdHandle GetProcessHeap FreeEnvironmentStringsW GetEnvironmentStringsW GetCommandLineA GetOEMCP RaiseException GetSystemInfo VirtualProtect VirtualQuery LoadLibraryExA UnhandledExceptionFilter SetUnhandledExceptionFilter TerminateProcess IsProcessorFeaturePresent IsDebuggerPresent GetStartupInfoW QueryPerformanceCounter GetCurrentThreadId GetSystemTimeAsFileTime InitializeSListHead RtlUnwind EncodePointer InitializeCriticalSectionAndSpinCount TlsAlloc TlsGetValue TlsSetValue TlsFree LoadLibraryExW QueryPerformanceFrequency GetModuleHandleExW GetModuleFileNameA GetACP HeapFree HeapReAlloc HeapAlloc GetStringTypeW LCMapStringW FindFirstFileExA FindNextFileA IsValidCodePage

oleaut32

SysAllocString SysFreeString VariantClear

gdiplus

GdipAlloc GdipDisposeImage GdipCloneImage GdipCreateBitmapFromStream GdipCreateBitmapFromStreamICM GdipCreateHBITMAPFromBitmap GdiplusStartup GdiplusShutdown GdipFree

Name

.text

Size

209KB

Virtual Size

209KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

45KB

Virtual Size

45KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.data

Size

4KB

Virtual Size

145KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.didat

Size

512B

Virtual Size

420B

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ IMAGE_SCN_MEM_WRITE

Name

.rsrc

Size

56KB

Virtual Size

56KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_READ

Name

.reloc

Size

9KB

Virtual Size

9KB

Characteristics

IMAGE_SCN_CNT_INITIALIZED_DATA IMAGE_SCN_MEM_DISCARDABLE IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

File Explorer

Build.exe

kernel32

oleaut32

gdiplus

generic