AppInstallerBackgroundUpdate[.]exe

Sharing

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General

Target

AppInstallerBackgroundUpdate.exe
Size

61KB
MD5

0fc59c6db7de68086963a4ad27c2589f
SHA1

77048b626d5b1f890f9c68f013b75f4add3ade18
SHA256

11d44050065eaf608f7318de143e7fa34e208cc610fe35cc4ffd45d8db7115ef
SHA512

0ddaede9ba3c87ebb0d3a378a34cb164d4b6680b8e2e361a226144986b230c22419e973aeb8cc8dd52e7cb20f1de88913b7d4bc8d3bff27233b6aac363d6f5f4
SSDEEP

1536:byUpRRF+OQynqim0BuamaQ0ynP+k+zLgp:9pQys3a5rynGlq

Score

1^/10

Malware Config

Signatures

Files

AppInstallerBackgroundUpdate.exe
.exe windows:10 windows x64 arch:x64

db517dcd8e27c95037f893b749a20d89

Code Sign

33:00:00:04:15:82:95:a1:a3:d8:2e:28:57:00:00:00:00:04:15
Certificate

Issuer

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

Not Before

03/02/2023, 00:05

Not After

01/02/2024, 00:05

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

45:61:4a:50:8c:37:50:3e:66:3d:61:9d:ea:7f:23:34:e7:02:1d:56:3b:f8:a1:b1:04:e8:9b:f4:7e:f4:dc:d0
Signer

Actual PE Digest

45:61:4a:50:8c:37:50:3e:66:3d:61:9d:ea:7f:23:34:e7:02:1d:56:3b:f8:a1:b1:04:e8:9b:f4:7e:f4:dc:d0

Digest Algorithm

sha256

PE Digest Matches

true

Headers

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

Imports

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

_initterm_e
_c_exit
_initterm
_register_thread_local_exe_atexit_callback

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

_o__cexit
_o__configthreadlocale
_o__configure_wide_argv
_o__crt_atexit
_o__errno
_o__exit
_o__get_wide_winmain_command_line
_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___p__commode
memcpy
_o___stdio_common_vsnwprintf_s
_o_exit
_o_free
_o_terminate
__C_specific_handler
__current_exception
__current_exception_context
_o___stdio_common_vsnprintf_s
_o___std_exception_destroy
_o___std_exception_copy
__std_terminate
__CxxFrameHandler4
_CxxThrowException

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

memset

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

GetModuleFileNameA
GetModuleHandleExW
LoadLibraryExW
FreeLibrary
GetProcAddress
GetModuleHandleW

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

CreateMutexExW
OpenSemaphoreW
WaitForSingleObjectEx
ReleaseMutex
ReleaseSemaphore
WaitForSingleObject
CreateSemaphoreExW

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

HeapFree
GetProcessHeap
HeapAlloc

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

SetLastError
SetUnhandledExceptionFilter
GetLastError
UnhandledExceptionFilter

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

GetCurrentProcessId
GetCurrentThreadId
TerminateProcess
GetStartupInfoW
GetCurrentProcess

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

FormatMessageW

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

IsDebuggerPresent
DebugBreak
OutputDebugStringW

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

CloseHandle

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

CoCreateInstance
CoSetProxyBlanket

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

RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext

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-core-interlocked-l1-1-0

InitializeSListHead

Sections

.text
Size: 24KB - Virtual size: 20KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 12KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 4KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 4KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 4KB - Virtual size: 88B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

db517dcd8e27c95037f893b749a20d89

Code Sign

33:00:00:04:15:82:95:a1:a3:d8:2e:28:57:00:00:00:00:04:15Certificate

Extended Key Usages

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

Key Usages

45:61:4a:50:8c:37:50:3e:66:3d:61:9d:ea:7f:23:34:e7:02:1d:56:3b:f8:a1:b1:04:e8:9b:f4:7e:f4:dc:d0Signer

Headers

DLL Characteristics

File Characteristics

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-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-processthreads-l1-1-0

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

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

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

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

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

Sections

.text Size: 24KB - Virtual size: 20KB

.rdata Size: 12KB - Virtual size: 8KB

.data Size: 4KB - Virtual size: 2KB

.pdata Size: 4KB - Virtual size: 1KB

.reloc Size: 4KB - Virtual size: 88B

33:00:00:04:15:82:95:a1:a3:d8:2e:28:57:00:00:00:00:04:15
Certificate

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

45:61:4a:50:8c:37:50:3e:66:3d:61:9d:ea:7f:23:34:e7:02:1d:56:3b:f8:a1:b1:04:e8:9b:f4:7e:f4:dc:d0
Signer

.text
Size: 24KB - Virtual size: 20KB

.rdata
Size: 12KB - Virtual size: 8KB

.data
Size: 4KB - Virtual size: 2KB

.pdata
Size: 4KB - Virtual size: 1KB

.reloc
Size: 4KB - Virtual size: 88B