wuauclt[.]exe | Triage

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General

Target

wuauclt.exe
Size

65KB
MD5

a16435e90a1e8efedc5538834ac8f18a
SHA1

a217834fb5d0e756cbe6b2ec434ddab5bb4f5d9b
SHA256

284a767566243bd97372ce058694b9db555744854375961394af6bf11ba8f22f
SHA512

8df03186407d032b5f4224cffb023f5900b06675c40af2d988250039f9c0d8288faf100f289e2e6b037cf57e61f24648ce9f9841e4c9273a3e78633a0fc27090
SSDEEP

1536:wkfBzm6OwbfOc0t3ipPW7BX2UDh7ZnU4LPVzt:dfBzm6rF01+wGMh9nUUdh

Score

1^/10

Malware Config

Signatures

Files

wuauclt.exe
.exe windows:10 windows x64 arch:x64

7877cd5a9a148c0ef0276a038cd3e108

Code Sign

33:00:00:04:5f:f3:c9:6c:1a:7f:f7:da:1d:00:00:00:00:04:5f
Certificate

Issuer

CN=Microsoft Windows Production PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

16/11/2023, 19:20

Not After

14/11/2024, 19:20

Subject

CN=Microsoft Windows,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

61:07:76:56:00:00:00:00:00:08
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

19/10/2011, 18:41

Not After

19/10/2026, 18:51

Subject

CN=Microsoft Windows Production PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

67:7d:47:c9:68:d4:08:a6:6d:55:a1:91:9b:76:ee:80:ee:2c:53:ee:2d:32:00:8d:af:60:42:22:9b:24:64:a9
Signer

Actual PE Digest

67:7d:47:c9:68:d4:08:a6:6d:55:a1:91:9b:76:ee:80:ee:2c:53:ee:2d:32:00:8d:af:60:42:22:9b:24:64:a9

Digest Algorithm

sha256

PE Digest Matches

true

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_FORCE_INTEGRITY
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

wuauclt.pdb

Imports

api-ms-win-crt-runtime-l1-1-0

_c_exit
_register_thread_local_exe_atexit_callback
_initterm_e
_initterm

api-ms-win-crt-private-l1-1-0

_o__initialize_onexit_table
_o__initialize_wide_environment
_o__invalid_parameter_noinfo
_o__register_onexit_function
_o__seh_filter_exe
_o__set_app_type
_o__set_fmode
_o__set_new_mode
_o_exit
_o_free
_o_terminate
__C_specific_handler
__CxxFrameHandler4
_CxxThrowException
_o__get_wide_winmain_command_line
_o__exit
_o__errno
_o__crt_atexit
_o__configure_wide_argv
_o__configthreadlocale
_o__cexit
_o___stdio_common_vswprintf
_o___stdio_common_vsnprintf_s
_o___std_exception_destroy
_o___std_exception_copy
_o___p__commode
memcpy

api-ms-win-crt-string-l1-1-0

memset

api-ms-win-core-com-l1-1-0

CoCreateInstance
CoUninitialize
CoInitializeEx
CoTaskMemFree

api-ms-win-core-errorhandling-l1-1-0

SetLastError
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetLastError

api-ms-win-core-libraryloader-l1-2-0

LoadLibraryExW
GetModuleHandleW
FreeLibrary
GetModuleHandleExW
GetProcAddress
GetModuleFileNameA

api-ms-win-core-processenvironment-l1-1-0

GetCommandLineW

api-ms-win-core-profile-l1-1-0

QueryPerformanceCounter

api-ms-win-core-processthreads-l1-1-0

GetCurrentProcessId
TerminateProcess
GetStartupInfoW
GetCurrentProcess
GetCurrentThreadId

api-ms-win-core-sysinfo-l1-1-0

GetSystemTimeAsFileTime

api-ms-win-core-interlocked-l1-1-0

InitializeSListHead

api-ms-win-core-rtlsupport-l1-1-0

RtlCaptureContext
RtlVirtualUnwind
RtlLookupFunctionEntry

api-ms-win-core-debug-l1-1-0

DebugBreak
IsDebuggerPresent
OutputDebugStringW

api-ms-win-core-processthreads-l1-1-1

IsProcessorFeaturePresent

api-ms-win-eventing-provider-l1-1-0

EventWriteTransfer
EventRegister
EventSetInformation
EventUnregister

api-ms-win-core-handle-l1-1-0

CloseHandle

api-ms-win-core-heap-l1-1-0

HeapReAlloc
HeapSetInformation
HeapAlloc
GetProcessHeap
HeapFree

api-ms-win-core-synch-l1-1-0

ReleaseSemaphore
OpenSemaphoreW
CreateSemaphoreExW
InitializeCriticalSection
WaitForSingleObject
DeleteCriticalSection
ReleaseMutex
WaitForSingleObjectEx
CreateMutexExW

api-ms-win-core-localization-l1-2-0

FormatMessageW

api-ms-win-core-string-l1-1-0

CompareStringW

api-ms-win-core-synch-l1-2-0

Sleep

Sections

.text
Size: 32KB - Virtual size: 32KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.imrsiv
Size: - Virtual size: 4B

IMAGE_SCN_CNT_UNINITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 1KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 2KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 156B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

7877cd5a9a148c0ef0276a038cd3e108

Code Sign

33:00:00:04:5f:f3:c9:6c:1a:7f:f7:da:1d:00:00:00:00:04:5fCertificate

Extended Key Usages

61:07:76:56:00:00:00:00:00:08Certificate

Key Usages

67:7d:47:c9:68:d4:08:a6:6d:55:a1:91:9b:76:ee:80:ee:2c:53:ee:2d:32:00:8d:af:60:42:22:9b:24:64:a9Signer

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

api-ms-win-crt-runtime-l1-1-0

api-ms-win-crt-private-l1-1-0

api-ms-win-crt-string-l1-1-0

api-ms-win-core-com-l1-1-0

api-ms-win-core-errorhandling-l1-1-0

api-ms-win-core-libraryloader-l1-2-0

api-ms-win-core-processenvironment-l1-1-0

api-ms-win-core-profile-l1-1-0

api-ms-win-core-processthreads-l1-1-0

api-ms-win-core-sysinfo-l1-1-0

api-ms-win-core-interlocked-l1-1-0

api-ms-win-core-rtlsupport-l1-1-0

api-ms-win-core-debug-l1-1-0

api-ms-win-core-processthreads-l1-1-1

api-ms-win-eventing-provider-l1-1-0

api-ms-win-core-handle-l1-1-0

api-ms-win-core-heap-l1-1-0

api-ms-win-core-synch-l1-1-0

api-ms-win-core-localization-l1-2-0

api-ms-win-core-string-l1-1-0

api-ms-win-core-synch-l1-2-0

Sections

.text Size: 32KB - Virtual size: 32KB

.imrsiv Size: - Virtual size: 4B

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

.data Size: 1KB - Virtual size: 3KB

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

.rsrc Size: 2KB - Virtual size: 2KB

.reloc Size: 512B - Virtual size: 156B

33:00:00:04:5f:f3:c9:6c:1a:7f:f7:da:1d:00:00:00:00:04:5f
Certificate

61:07:76:56:00:00:00:00:00:08
Certificate

67:7d:47:c9:68:d4:08:a6:6d:55:a1:91:9b:76:ee:80:ee:2c:53:ee:2d:32:00:8d:af:60:42:22:9b:24:64:a9
Signer

.text
Size: 32KB - Virtual size: 32KB

.imrsiv
Size: - Virtual size: 4B

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

.data
Size: 1KB - Virtual size: 3KB

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

.rsrc
Size: 2KB - Virtual size: 2KB

.reloc
Size: 512B - Virtual size: 156B