WindowsUpdate[.]exe

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General

Target

WindowsUpdate.exe
Size

71KB
MD5

e92033c4310aba338e751055fab72937
SHA1

dc9aedd2617732f209b362b203221e529c9bc159
SHA256

1c0d4d3e6522296bb085870816361f8d4f4ebb083122a6554abe4a66bec7478a
SHA512

53b6cbd529ecee74ed1628ae23c4fceeac102e8205663f30d9e03d8ae35779801479c94c09483407c1686860c19c6fd002f7409a3ee27a68919489c3a06b3c2a
SSDEEP

384:YW4V0harQVxVCm1A134HTxG6b14YHzUICZ8Ej36qml1Hlk8BbO8/zQfBLDeHQqLi:YWGr+zb1BPu3rylk8BbmBXeMaBM

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
WindowsUpdate.exe

Files

WindowsUpdate.exe
.exe windows x64

5587b3339e3a3b6061bc0a961b1bf233

Headers

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

Imports

winhttp

WinHttpSendRequest
WinHttpOpenRequest
WinHttpQueryDataAvailable
WinHttpReadData
WinHttpOpen
WinHttpConnect
WinHttpCloseHandle
WinHttpReceiveResponse

kernel32

GetProcAddress
IsDebuggerPresent
RaiseException
MultiByteToWideChar
WideCharToMultiByte
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
FreeLibrary
GetLastError
VirtualAlloc
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
QueryPerformanceCounter
GetCurrentProcessId
GetSystemTimeAsFileTime
InitializeSListHead
GetStartupInfoW
GetModuleHandleW
HeapAlloc
HeapFree
GetProcessHeap
GetCurrentThreadId
VirtualQuery

vcruntime140d

__vcrt_GetModuleHandleW
__vcrt_GetModuleFileNameW
_CxxThrowException
__std_exception_destroy
__std_exception_copy
__current_exception_context
__current_exception
__std_type_info_destroy_list
__C_specific_handler_noexcept
__C_specific_handler
strstr
__vcrt_LoadLibraryExW
memcpy
memset

ucrtbased

_callnewh
_free_dbg
strcpy_s
strcat_s
__stdio_common_vsprintf_s
_seh_filter_dll
_configure_narrow_argv
_initialize_narrow_environment
_initialize_onexit_table
_register_onexit_function
_execute_onexit_table
_crt_atexit
_crt_at_quick_exit
terminate
_wmakepath_s
_wsplitpath_s
wcscpy_s
__p__commode
_set_new_mode
_configthreadlocale
_register_thread_local_exe_atexit_callback
_cexit
__p___wargv
__p___argc
_set_fmode
_exit
exit
_initterm_e
_initterm
_get_initial_wide_environment
_initialize_wide_environment
_configure_wide_argv
__setusermatherr
_set_app_type
_seh_filter_exe
_CrtDbgReportW
_CrtDbgReport
malloc
strcat
__stdio_common_vfprintf
__acrt_iob_func
_c_exit

Sections

.textbss
Size: - Virtual size: 64KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.text
Size: 35KB - Virtual size: 35KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 15KB - Virtual size: 14KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 1KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 9KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.idata
Size: 5KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.msvcjmc
Size: 1024B - Virtual size: 551B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.00cfg
Size: 512B - Virtual size: 373B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 1024B - Virtual size: 691B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

5587b3339e3a3b6061bc0a961b1bf233

Headers

DLL Characteristics

File Characteristics

Imports

winhttp

kernel32

vcruntime140d

ucrtbased

Sections

.textbss Size: - Virtual size: 64KB

.text Size: 35KB - Virtual size: 35KB

.rdata Size: 15KB - Virtual size: 14KB

.data Size: 1KB - Virtual size: 2KB

.pdata Size: 9KB - Virtual size: 8KB

.idata Size: 5KB - Virtual size: 4KB

.msvcjmc Size: 1024B - Virtual size: 551B

.00cfg Size: 512B - Virtual size: 373B

.rsrc Size: 1KB - Virtual size: 1KB

.reloc Size: 1024B - Virtual size: 691B

.textbss
Size: - Virtual size: 64KB

.text
Size: 35KB - Virtual size: 35KB

.rdata
Size: 15KB - Virtual size: 14KB

.data
Size: 1KB - Virtual size: 2KB

.pdata
Size: 9KB - Virtual size: 8KB

.idata
Size: 5KB - Virtual size: 4KB

.msvcjmc
Size: 1024B - Virtual size: 551B

.00cfg
Size: 512B - Virtual size: 373B

.rsrc
Size: 1KB - Virtual size: 1KB

.reloc
Size: 1024B - Virtual size: 691B