wuauclt[.]exe | Triage

Sharing

Copy URL Twitter E-mail

General

Target

wuauclt.exe
Size

102KB
MD5

0dc688d041969440da8a6ccc264403aa
SHA1

ed4452482ffa7b75a7b2c123eb30f1c2f77f7c44
SHA256

5e9f45ab012ee345735be7eee7f71edf4d905228c002023ddfdb5fab25d6b425
SHA512

0979d11448272fd56c7ae7fbf874ca3179c3c6a263fd7556dd3c6137fd529c8418704d6dba85a1d83250e6308d282992873c6e46902df7ad8497622624eab3b8
SSDEEP

3072:4pbyCoMiRyr1LsUaMsiyI4wqxuldgxskfaZ:41ymi8r14FpnI4HxuliFfK

Score

N/A

Malware Config

Signatures

Files

wuauclt.exe
.exe windows x64

ce7b6bdd6ee65c5887ce692073b76efd

Code Sign

33:00:00:03:8d:b0:bf:e1:b0:ca:33:b3:d4:00:00:00:00:03:8d
Certificate

Issuer

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

Not Before

05/05/2022, 19:23

Not After

04/05/2023, 19:23

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

7b:d7:eb:d4:59:ec:88:ce:c1:d5:63:e3:cc:f7:ff:ab:ba:91:69:0e:e4:42:6b:1f:c4:3e:28:a2:23:86:8a:e2
Signer

Actual PE Digest

7b:d7:eb:d4:59:ec:88:ce:c1:d5:63:e3:cc:f7:ff:ab:ba:91:69:0e:e4:42:6b:1f:c4:3e:28:a2:23:86:8a:e2

Digest Algorithm

sha256

PE Digest Matches

true

Signature Validations

Trusted

false

Verification

Signing Certificate

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

13/01/2023, 12:40
Valid: false

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

Imports

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

__stdio_common_vswprintf
__p__commode
_set_fmode
__stdio_common_vsnprintf_s

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

_crt_atexit
_register_onexit_function
_initialize_onexit_table
_initialize_wide_environment
_seh_filter_exe
_configure_wide_argv
_set_app_type
_invalid_parameter_noinfo
_register_thread_local_exe_atexit_callback
_c_exit
_cexit
_exit
exit
terminate
abort
_get_wide_winmain_command_line
_initterm_e
_initterm
_errno

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

wcstoull
mbstowcs_s

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

CoCreateInstance
CoUninitialize
CoTaskMemFree
CoInitializeEx

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

IsDebuggerPresent
DebugBreak
OutputDebugStringW

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

TlsSetValue
TlsGetValue
GetCurrentProcessId
TlsAlloc
TerminateProcess
GetStartupInfoW
TlsFree
GetCurrentProcess
GetCurrentThreadId

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

GetModuleHandleExW
GetProcAddress
GetModuleFileNameW
GetModuleHandleW
FreeLibrary
LoadLibraryExW
GetModuleFileNameA

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

WaitForSingleObjectEx
ReleaseSRWLockShared
AcquireSRWLockShared
ReleaseSRWLockExclusive
ReleaseSemaphore
DeleteCriticalSection
OpenSemaphoreW
CreateMutexExW
CreateSemaphoreExW
WaitForSingleObject
ReleaseMutex
AcquireSRWLockExclusive
InitializeCriticalSectionAndSpinCount

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

HeapSetInformation
HeapAlloc
GetProcessHeap
HeapFree

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

SetUnhandledExceptionFilter
RaiseException
UnhandledExceptionFilter
SetLastError
GetLastError

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

CloseHandle

rpcrt4

UuidFromStringW

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

GetCommandLineW

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

InitOnceComplete
InitOnceBeginInitialize
Sleep

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

RtlUnwindEx
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
RtlPcToFileHeader

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

EncodePointer

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

InitializeSListHead

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

IsProcessorFeaturePresent

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

QueryPerformanceCounter

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

GetSystemTimeAsFileTime

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

_set_new_mode
calloc
free
malloc

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

strcpy_s
wcsncmp

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

__setusermatherr

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

_configthreadlocale

api-ms-win-core-delayload-l1-1-1

ResolveDelayLoadedAPI

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

DelayLoadFailureHook

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

CompareStringW

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

RegQueryValueExW
RegCloseKey
RegOpenKeyExW

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

GetNativeSystemInfo

Sections

.text
Size: 59KB - Virtual size: 58KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 25KB - Virtual size: 25KB

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: 3KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.didat
Size: 512B - Virtual size: 88B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

_RDATA
Size: 512B - Virtual size: 384B

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: 512B - Virtual size: 456B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

ce7b6bdd6ee65c5887ce692073b76efd

Code Sign

33:00:00:03:8d:b0:bf:e1:b0:ca:33:b3:d4:00:00:00:00:03:8dCertificate

Extended Key Usages

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

Key Usages

7b:d7:eb:d4:59:ec:88:ce:c1:d5:63:e3:cc:f7:ff:ab:ba:91:69:0e:e4:42:6b:1f:c4:3e:28:a2:23:86:8a:e2Signer

Signature Validations

Verification

13/01/2023, 12:40 Valid: false

Headers

DLL Characteristics

File Characteristics

Imports

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

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

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

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

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

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

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

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

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

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

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

rpcrt4

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

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

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

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

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

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

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

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

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

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

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

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

api-ms-win-core-delayload-l1-1-1

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

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

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

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

Sections

.text Size: 59KB - Virtual size: 58KB

.rdata Size: 25KB - Virtual size: 25KB

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

.pdata Size: 3KB - Virtual size: 2KB

.didat Size: 512B - Virtual size: 88B

_RDATA Size: 512B - Virtual size: 384B

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

.reloc Size: 512B - Virtual size: 456B

33:00:00:03:8d:b0:bf:e1:b0:ca:33:b3:d4:00:00:00:00:03:8d
Certificate

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

7b:d7:eb:d4:59:ec:88:ce:c1:d5:63:e3:cc:f7:ff:ab:ba:91:69:0e:e4:42:6b:1f:c4:3e:28:a2:23:86:8a:e2
Signer

13/01/2023, 12:40
Valid: false

.text
Size: 59KB - Virtual size: 58KB

.rdata
Size: 25KB - Virtual size: 25KB

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

.pdata
Size: 3KB - Virtual size: 2KB

.didat
Size: 512B - Virtual size: 88B

_RDATA
Size: 512B - Virtual size: 384B

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

.reloc
Size: 512B - Virtual size: 456B