RtkAudUService64[.]exe

Sharing

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General

Target

RtkAudUService64.exe
Size

818KB
MD5

f79c81487892b664f20da3ab4a2b5064
SHA1

5efd2d4cd6a61afcf1a3dc49b14d2c09c0c632e5
SHA256

a05227875ce5e7c2c623f8814c0dde6f5fdf9b4b1a10e7dca4191c1ffe818f89
SHA512

e80af167baeb874159341bf78aabc98d9f148bfcd3f0763961c2a8c0146fd62385fb7debc41aa8d4722f44364ab7af32c2df93c02a5abcc0ffa0de24669a2299
SSDEEP

24576:g1KG6bblkQiQ0nrEXOiKmHqhqAxza6Kfb/1:g1J6b/iQ0wXOiZGbw6Kfb/1

Score

1^/10

Malware Config

Signatures

Files

RtkAudUService64.exe
.exe windows:6 windows x64 arch:x64

da3a9b1e0d868e66b57f15ade4e9f1ee

Code Sign

61:20:4d:b4:00:00:00:00:00:27
Certificate

Issuer

CN=Microsoft Code Verification Root,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

15/04/2011, 19:45

Not After

15/04/2021, 19:55

Subject

CN=DigiCert High Assurance EV Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

06:3d:0c:01:1b:14:3c:57:89:3f:e8:39:77:9a:fc:d0
Certificate

Issuer

CN=DigiCert EV Code Signing CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

19/12/2018, 00:00

Not After

31/12/2019, 12:00

Subject

SERIALNUMBER=22671299,CN=Realtek Semiconductor Corp.,O=Realtek Semiconductor Corp.,L=HSINCHU,C=TW,2.5.4.15=#131450726976617465204f7267616e697a6174696f6e,1.3.6.1.4.1.311.60.2.1.3=#13025457

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature

03:01:9a:02:3a:ff:58:b1:6b:d6:d5:ea:e6:17:f0:66
Certificate

Issuer

CN=DigiCert Assured ID CA-1,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

22/10/2014, 00:00

Not After

22/10/2024, 00:00

Subject

CN=DigiCert Timestamp Responder,O=DigiCert,C=US

Extended Key Usages

ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature

0d:d0:e3:37:4a:c9:5b:db:fa:6b:43:4b:2a:48:ec:06
Certificate

Issuer

CN=DigiCert High Assurance EV Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

18/04/2012, 12:00

Not After

18/04/2027, 12:00

Subject

CN=DigiCert EV Code Signing CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Extended Key Usages

ExtKeyUsageCodeSigning

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

06:fd:f9:03:96:03:ad:ea:00:0a:eb:3f:27:bb:ba:1b
Certificate

Issuer

CN=DigiCert Assured ID Root CA,OU=www.digicert.com,O=DigiCert Inc,C=US

Not Before

10/11/2006, 00:00

Not After

10/11/2021, 00:00

Subject

CN=DigiCert Assured ID CA-1,OU=www.digicert.com,O=DigiCert Inc,C=US

Extended Key Usages

ExtKeyUsageServerAuth
ExtKeyUsageClientAuth
ExtKeyUsageCodeSigning
ExtKeyUsageEmailProtection
ExtKeyUsageTimeStamping

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

33:00:00:00:6d:9d:a5:3e:87:00:9d:33:49:00:00:00:00:00:6d
Certificate

Issuer

CN=Microsoft Windows Third Party Component CA 2012,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

20/09/2018, 19:45

Not After

20/09/2019, 19:45

Subject

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

Extended Key Usages

ExtKeyUsageCodeSigning

61:0b:aa:c1:00:00:00:00:00:09
Certificate

Issuer

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

Not Before

18/04/2012, 23:48

Not After

18/04/2027, 23:58

Subject

CN=Microsoft Windows Third Party Component CA 2012,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

75:0d:85:8e:f7:ae:b8:ac:2f:19:9e:97:bd:3a:cb:7b:5a:b0:09:85:64:fa:84:e8:f4:cd:ab:64:cd:62:6a:71
Signer

Actual PE Digest

75:0d:85:8e:f7:ae:b8:ac:2f:19:9e:97:bd:3a:cb:7b:5a:b0:09:85:64:fa:84:e8:f4:cd:ab:64:cd:62:6a:71

Digest Algorithm

sha256

PE Digest Matches

true

c6:8c:5a:00:7a:03:86:3d:1d:17:da:e2:77:22:83:fd:58:40:d6:e0
Signer

Actual PE Digest

c6:8c:5a:00:7a:03:86:3d:1d:17:da:e2:77:22:83:fd:58:40:d6:e0

Digest Algorithm

sha1

PE Digest Matches

true

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

PDB Paths

D:\HD_Audio\20190319\Uservice\Release\x64\RtkAudUService64.pdb

Imports

oleaut32

VariantClear
LPSAFEARRAY_UserMarshal
BSTR_UserFree64
BSTR_UserSize64
LPSAFEARRAY_UserSize64
BSTR_UserMarshal64
SafeArrayCreateVector
SafeArrayPutElement
BSTR_UserMarshal
SafeArrayUnaccessData
SysAllocStringLen
LPSAFEARRAY_UserUnmarshal64
VariantCopy
BSTR_UserUnmarshal
LPSAFEARRAY_UserMarshal64
BSTR_UserSize
LPSAFEARRAY_UserFree64
LPSAFEARRAY_UserUnmarshal
LPSAFEARRAY_UserFree
BSTR_UserUnmarshal64
VariantInit
LPSAFEARRAY_UserSize
SysFreeString
BSTR_UserFree
SafeArrayAccessData
SysAllocString

rpcrt4

NdrClientCall3
RpcServerUnregisterIf
NdrServerCallAll
NdrServerCall2
RpcEpUnregister
RpcBindingVectorFree
RpcServerListen
RpcEpRegisterW
RpcServerInqBindings
RpcServerRegisterIf3
RpcServerUseProtseqEpW

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

CLSIDFromString
CoFreeUnusedLibrariesEx
CoInitializeEx
CoTaskMemFree
PropVariantClear
CoSetProxyBlanket
CoInitializeSecurity
CoUninitialize
StringFromGUID2
CoCreateInstance

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

GetProcessHeap
HeapSize
HeapReAlloc
HeapDestroy
HeapAlloc
HeapFree

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

lstrlenW
lstrcmpW

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

LockResource
GetModuleHandleW
SizeofResource
FreeLibrary
GetProcAddress
GetModuleHandleA
LoadLibraryExW
GetModuleFileNameW
LoadResource
FindResourceExW
LoadStringW

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

SetEvent
InitializeCriticalSectionEx
CancelWaitableTimer
DeleteCriticalSection
SetWaitableTimer
InitializeCriticalSectionAndSpinCount
EnterCriticalSection
InitializeCriticalSection
ResetEvent
WaitForSingleObjectEx
LeaveCriticalSection
CreateEventExW
CreateEventW
CreateMutexW
WaitForSingleObject
TryEnterCriticalSection

api-ms-win-core-libraryloader-l1-2-1

FindResourceW
LoadLibraryW

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

MultiByteToWideChar
GetStringTypeW
WideCharToMultiByte

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

GetFileAttributesW
DeleteFileW
QueryDosDeviceW
CreateFileW

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

OpenProcess
IsProcessorFeaturePresent

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

OpenProcessToken
TlsGetValue
TlsAlloc
TlsFree
GetExitCodeProcess
GetStartupInfoW
CreateProcessAsUserW
GetCurrentProcess
SwitchToThread
ProcessIdToSessionId
GetCurrentThreadId
TerminateProcess
TlsSetValue
CreateThread
CreateProcessW
GetCurrentProcessId

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

CloseHandle

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

OutputDebugStringA
IsDebuggerPresent
OutputDebugStringW

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

RegSetValueExW
RegGetKeySecurity
RegGetValueW
RegOpenKeyExW
RegCreateKeyExW
RegCloseKey
RegEnumValueW
RegDeleteValueW
RegQueryValueExW
RegNotifyChangeKeyValue
RegSetKeySecurity

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

Sleep

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

GetLastError
SetLastError
UnhandledExceptionFilter
SetUnhandledExceptionFilter
RaiseException

ext-ms-win-shell32-shellfolders-l1-1-0

SHGetSpecialFolderPathW
SHGetFolderPathW

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

GetProfileIntW

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

GetSystemTimeAsFileTime
GetTickCount
GetSystemDirectoryW
GetLocalTime

api-ms-win-core-registry-l2-1-0

RegCreateKeyW

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

GetTempPathW

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

LCMapStringW
FormatMessageW

api-ms-win-core-heap-l2-1-0

LocalFree
LocalAlloc

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

LocalSize

api-ms-win-core-synch-l1-2-1

CreateWaitableTimerW
WaitForMultipleObjects

api-ms-win-core-kernel32-legacy-l1-1-0

WTSGetActiveConsoleSessionId
GetSystemPowerStatus

api-ms-win-security-base-l1-1-0

InitializeSecurityDescriptor
AddAccessAllowedAceEx
InitializeAcl
SetTokenInformation
AdjustTokenPrivileges
GetSecurityDescriptorDacl
GetAce
AddAce
SetSecurityDescriptorDacl
FreeSid
AllocateAndInitializeSid
CreateWellKnownSid
GetAclInformation
GetLengthSid
DuplicateTokenEx

api-ms-win-security-sddl-l1-1-0

ConvertSidToStringSidW

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

DeviceIoControl

api-ms-win-security-base-l1-2-2

DeriveCapabilitySidsFromName

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

SetEntriesInAclW

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

RegSetKeyValueW

bcrypt

BCryptOpenAlgorithmProvider
BCryptEncrypt
BCryptImportKeyPair
BCryptDestroyKey
BCryptCloseAlgorithmProvider

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

StartServiceCtrlDispatcherW
RegisterServiceCtrlHandlerExW
SetServiceStatus

api-ms-win-service-management-l1-1-0

CreateServiceW
DeleteService
OpenSCManagerW
CloseServiceHandle
OpenServiceW

api-ms-win-service-winsvc-l1-1-0

QueryServiceStatus
ControlService

api-ms-win-service-management-l2-1-0

QueryServiceStatusEx

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

EncodePointer
DecodePointer

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

K32GetModuleBaseNameW
K32EnumProcessModules
QueryFullProcessImageNameW
K32EnumProcesses

api-ms-win-appmodel-runtime-l1-1-1

FindPackagesByPackageFamily

api-ms-win-mm-misc-l1-1-0

mmioWrite
mmioSetInfo
mmioOpenW
mmioDescend
mmioClose
mmioAscend
mmioSeek
mmioRead
mmioCreateChunk
mmioGetInfo
mmioAdvance

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

Process32FirstW
Process32NextW
CreateToolhelp32Snapshot

api-ms-win-security-lsalookup-l2-1-0

LookupPrivilegeValueW

userenv

CreateEnvironmentBlock

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

ReadProcessMemory

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

CreateThreadpoolWork
SubmitThreadpoolWork

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

RegisterTraceGuidsW
GetTraceEnableFlags
GetTraceEnableLevel
GetTraceLoggerHandle
TraceMessage

setupapi

SetupDiGetDeviceRegistryPropertyW
SetupDiGetDeviceInstanceIdW
SetupDiDestroyDeviceInfoList
SetupDiEnumDeviceInfo
SetupDiGetDevicePropertyW
SetupDiGetClassDevsW
SetupDiEnumDeviceInterfaces
SetupDiGetDeviceInterfaceDetailW

wtsapi32

WTSQueryUserToken
WTSRegisterSessionNotification

kernel32

WinExec
WriteProfileStringW

user32

LoadCursorW
RegisterClassW
CreateWindowExW
ShowWindow
FindWindowExW
SendMessageW
DefWindowProcW
UnhookWinEvent
SetWinEventHook
GetClassNameA
KillTimer
SetTimer
RegisterDeviceNotificationW
UnregisterDeviceNotification
CallNextHookEx
UnhookWindowsHookEx
SetWindowsHookExW
DispatchMessageW
LoadIconW
TranslateMessage
GetMessageW
SendInput

advapi32

DeregisterEventSource
RegisterEventSourceW
ReportEventW
GetUserNameW

ole32

CoInitialize

avrt

AvRevertMmThreadCharacteristics
AvSetMmThreadCharacteristicsW

ntdll

NtQueryInformationProcess

oleacc

AccessibleObjectFromEvent

wininet

InternetOpenUrlW
InternetReadFile
InternetOpenW
InternetCloseHandle

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

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

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

islower
_wcsdup
isupper
strcpy_s
strcmp
wcsnlen
wmemcpy_s
_wcsicmp
_wcsupr_s
wcscpy_s
wcstok_s
wcsncmp
strcspn
wcscat_s
iswspace
__strncnt

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

fputws
fputs
fread
__stdio_common_vfprintf
__stdio_common_vsprintf
ungetc
__stdio_common_vsprintf_s
_flushall
__acrt_iob_func
__stdio_common_vfwprintf
__stdio_common_vfprintf_s
_wfopen_s
__p__commode
_set_fmode
fclose
fflush
fgets
_get_stream_buffer_pointers
fseek
fgetc
_wfsopen
__stdio_common_vswprintf_s
__stdio_common_vswprintf
fgetwc
fputwc
ungetwc
fgetpos
fputc
fsetpos
_fseeki64
fwrite
setvbuf

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

_recalloc
malloc
_set_new_mode
calloc
free
realloc
_callnewh

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

wcstol
wcstoul
_wtoi

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

atan2f
asinf
pow
log10f
powf
__setusermatherr
frexp

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

_unlock_locales
_lock_locales
localeconv
setlocale
__pctype_func
___lc_locale_name_func
___lc_codepage_func
_configthreadlocale
___mb_cur_max_func

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

_mbschr
_mbsstr

shlwapi

PathFileExistsW

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

RtlLookupFunctionEntry
RtlUnwind
RtlCaptureContext
RtlPcToFileHeader
RtlUnwindEx
RtlVirtualUnwind

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

QueryPerformanceCounter

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

InitializeSListHead

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

_lock_file
_unlock_file

Sections

.text
Size: 453KB - Virtual size: 453KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 272KB - Virtual size: 271KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 10KB - Virtual size: 18KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 22KB - Virtual size: 21KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 36KB - Virtual size: 36KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 6KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

da3a9b1e0d868e66b57f15ade4e9f1ee

Code Sign

61:20:4d:b4:00:00:00:00:00:27Certificate

Key Usages

06:3d:0c:01:1b:14:3c:57:89:3f:e8:39:77:9a:fc:d0Certificate

Extended Key Usages

Key Usages

03:01:9a:02:3a:ff:58:b1:6b:d6:d5:ea:e6:17:f0:66Certificate

Extended Key Usages

Key Usages

0d:d0:e3:37:4a:c9:5b:db:fa:6b:43:4b:2a:48:ec:06Certificate

Extended Key Usages

Key Usages

06:fd:f9:03:96:03:ad:ea:00:0a:eb:3f:27:bb:ba:1bCertificate

Extended Key Usages

Key Usages

33:00:00:00:6d:9d:a5:3e:87:00:9d:33:49:00:00:00:00:00:6dCertificate

Extended Key Usages

61:0b:aa:c1:00:00:00:00:00:09Certificate

Key Usages

75:0d:85:8e:f7:ae:b8:ac:2f:19:9e:97:bd:3a:cb:7b:5a:b0:09:85:64:fa:84:e8:f4:cd:ab:64:cd:62:6a:71Signer

c6:8c:5a:00:7a:03:86:3d:1d:17:da:e2:77:22:83:fd:58:40:d6:e0Signer

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

oleaut32

rpcrt4

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

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

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

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

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

api-ms-win-core-libraryloader-l1-2-1

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

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

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

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

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

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

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

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

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

ext-ms-win-shell32-shellfolders-l1-1-0

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

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

api-ms-win-core-registry-l2-1-0

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

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

api-ms-win-core-heap-l2-1-0

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

api-ms-win-core-synch-l1-2-1

api-ms-win-core-kernel32-legacy-l1-1-0

api-ms-win-security-base-l1-1-0

api-ms-win-security-sddl-l1-1-0

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

api-ms-win-security-base-l1-2-2

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

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

bcrypt

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

api-ms-win-service-management-l1-1-0

api-ms-win-service-winsvc-l1-1-0

api-ms-win-service-management-l2-1-0

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

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

api-ms-win-appmodel-runtime-l1-1-1

api-ms-win-mm-misc-l1-1-0

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

api-ms-win-security-lsalookup-l2-1-0

userenv

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

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

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

61:20:4d:b4:00:00:00:00:00:27
Certificate

06:3d:0c:01:1b:14:3c:57:89:3f:e8:39:77:9a:fc:d0
Certificate

03:01:9a:02:3a:ff:58:b1:6b:d6:d5:ea:e6:17:f0:66
Certificate

0d:d0:e3:37:4a:c9:5b:db:fa:6b:43:4b:2a:48:ec:06
Certificate

06:fd:f9:03:96:03:ad:ea:00:0a:eb:3f:27:bb:ba:1b
Certificate

33:00:00:00:6d:9d:a5:3e:87:00:9d:33:49:00:00:00:00:00:6d
Certificate

61:0b:aa:c1:00:00:00:00:00:09
Certificate

75:0d:85:8e:f7:ae:b8:ac:2f:19:9e:97:bd:3a:cb:7b:5a:b0:09:85:64:fa:84:e8:f4:cd:ab:64:cd:62:6a:71
Signer

c6:8c:5a:00:7a:03:86:3d:1d:17:da:e2:77:22:83:fd:58:40:d6:e0
Signer

.text
Size: 453KB - Virtual size: 453KB

.rdata
Size: 272KB - Virtual size: 271KB

.data
Size: 10KB - Virtual size: 18KB

.pdata
Size: 22KB - Virtual size: 21KB

.rsrc
Size: 36KB - Virtual size: 36KB

.reloc
Size: 6KB - Virtual size: 5KB