WindowsUpdate[.]exe

Sharing

Copy URL Twitter E-mail

General

Target
WindowsUpdate.exe
Size 33.8MB
Sample261027-m1y3jsct61
SHA256 501484a16c39b5a5c6e1ecb23858455443ca2aa3922fbb1714caf6b844d03c6c
MD5 f0f30cc551714cbf9d42c47719d03129
SHA1 c52c17dec9dc8852257ad65a45894b350acc76d7
SHA512 f2b88489aff7954e2bbaed74b49c1bb39277d78a64b6aee57a69788ad85bb1d7a85be20a66d6d5fba9fdfd33eb531da226e4a9f032e9b80e1a0e98aad072a23f
SSDEEP 786432:OxdtdHLYNEI4RphprhsqP6bxW2p10MZeyziHVB/2aj5Vvsr3SK:u3HLYNUPhprfP6L07WM/2z3SK
TLSH
T1C0773325BF6110FFE1FA9039A897C062A6E231961796C7DF179402D93DBB1E11A3CB31
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 33.8MB
ss.pyc

465KB

WindowsUpdate.exe

IMPHASH e3e80a143805ea18936c8f612e25d363
SHA256 501484a16c39b5a5c6e1ecb23858455443ca2aa3922fbb1714caf6b844d03c6c
MD5 f0f30cc551714cbf9d42c47719d03129
SHA1 c52c17dec9dc8852257ad65a45894b350acc76d7
SHA512 f2b88489aff7954e2bbaed74b49c1bb39277d78a64b6aee57a69788ad85bb1d7a85be20a66d6d5fba9fdfd33eb531da226e4a9f032e9b80e1a0e98aad072a23f
SSDEEP 786432:OxdtdHLYNEI4RphprhsqP6bxW2p10MZeyziHVB/2aj5Vvsr3SK:u3HLYNUPhprfP6L07WM/2z3SK
TLSH
T1C0773325BF6110FFE1FA9039A897C062A6E231961796C7DF179402D93DBB1E11A3CB31
MD5 SHA1 SHA512 SSDEEP TLSH

windows:6 windows x64 arch:x64

Unsigned PE

Checks for missing Authenticode signature.

Minor OS version

Major OS version

Entry point

59248

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_GUARD_CF IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LARGE_ADDRESS_AWARE

PDB paths

user32

CreateWindowExW ShutdownBlockReasonCreate MsgWaitForMultipleObjects ShowWindow DestroyWindow RegisterClassW DefWindowProcW PeekMessageW DispatchMessageW TranslateMessage GetMonitorInfoW MonitorFromPoint GetCursorPos GetSystemMetrics PostMessageW GetMessageW MessageBoxW MessageBoxA SystemParametersInfoW DestroyIcon SetWindowLongPtrW GetWindowLongPtrW GetClientRect InvalidateRect ReleaseDC GetDC DrawTextW GetDialogBaseUnits EndDialog DialogBoxIndirectParamW MoveWindow SendMessageW

comctl32

ord380

kernel32

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

advapi32

GetTokenInformation OpenProcessToken ConvertSidToStringSidW ConvertStringSecurityDescriptorToSecurityDescriptorW

gdi32

SelectObject DeleteObject CreateFontIndirectW

Name

.text

Size

200KB

Virtual Size

200KB

Characteristics

IMAGE_SCN_CNT_CODE IMAGE_SCN_MEM_EXECUTE IMAGE_SCN_MEM_READ

Name

.rdata

Size

82KB

Virtual Size

82KB

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

10KB

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

61KB

Virtual Size

61KB

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

user32

comctl32

kernel32

advapi32

gdi32

generic

ss.pyc