CmRcService[.]exe

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General

Target

CmRcService.exe
Size

3.5MB
MD5

464732ee8e7163ff59230889ebc71faa
SHA1

4d1cb2ef56bbfd3c2bc76f61424ac639745d3dba
SHA256

261b512e1f4666a349c02d31045f9e777656f8f3558508945651876debcae6b3
SHA512

a3cb5925208ff5e85c04aec7b39e93e278035c0cc8b777c1e6d48ab3d5e36a91e35bab437367d55b724c7b7de7ede30905f22a6637c11ad36fe5487ff44eaee9
SSDEEP

49152:WzzfcOCG2lRybSpDCgCRUFv9ORo9Iqdrepy1Bj:kERUG

Score

1^/10

Malware Config

Signatures

Files

CmRcService.exe
.exe windows x64

65732a5a4e7130357bdc0b32d0e82f07

Code Sign

33:00:00:02:cc:8e:b5:96:a6:bd:d1:c9:4e:00:00:00:00:02:cc
Certificate

Issuer

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

12-05-2022 20:46

Not After

11-05-2023 20:46

Subject

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

Extended Key Usages

ExtKeyUsageCodeSigning

61:0e:90:d2:00:00:00:00:00:03
Certificate

Issuer

CN=Microsoft Root Certificate Authority 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

08-07-2011 20:59

Not After

08-07-2026 21:09

Subject

CN=Microsoft Code Signing PCA 2011,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

03:38:d8:24:6c:89:36:9e:33:76:ec:f3:c1:d2:e6:c4:f0:e6:04:41:45:40:fb:3c:7a:1e:d9:d6:63:bf:43:60
Signer

Actual PE Digest

03:38:d8:24:6c:89:36:9e:33:76:ec:f3:c1:d2:e6:c4:f0:e6:04:41:45:40:fb:3c:7a:1e:d9:d6:63:bf:43:60

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

kernel32

GetTimeZoneInformation
SetErrorMode
FindFirstFileW
DeleteFileW
GetFileInformationByHandle
SystemTimeToTzSpecificLocalTime
CopyFileW
SetFilePointer
LockFileEx
SetEndOfFile
UnlockFileEx
InitializeCriticalSection
GetFileAttributesW
ExpandEnvironmentStringsW
FormatMessageW
GetSystemDirectoryW
GetUserDefaultUILanguage
GetSystemDefaultUILanguage
GetEnvironmentVariableW
lstrlenW
VerifyVersionInfoW
GetVersionExW
GetSystemInfo
GetExitCodeProcess
DeviceIoControl
OpenProcess
DuplicateHandle
CreateSemaphoreW
ReleaseSemaphore
GetFileAttributesExW
FreeConsole
AllocConsole
CreateConsoleScreenBuffer
SetConsoleActiveScreenBuffer
SetConsoleScreenBufferSize
GetLargestConsoleWindowSize
SetConsoleWindowInfo
SetConsoleMode
GetConsoleScreenBufferInfo
SetConsoleTextAttribute
GetConsoleWindow
HeapCreate
HeapQueryInformation
HeapDestroy
LocalAlloc
WTSGetActiveConsoleSessionId
CreateFileMappingW
MapViewOfFile
UnmapViewOfFile
CompareFileTime
GetComputerNameExW
SleepEx
CreateWaitableTimerW
WaitForMultipleObjects
SetWaitableTimer
BindIoCompletionCallback
WriteConsoleW
CreateFileW
SetFilePointerEx
GetConsoleMode
GetConsoleCP
FlushFileBuffers
GetStringTypeW
SetStdHandle
SetConsoleCtrlHandler
GetFileType
GetProcessHeap
GetThreadTimes
LCMapStringW
SetEnvironmentVariableW
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineW
GetCommandLineA
GetCPInfo
GetOEMCP
GetACP
IsValidCodePage
FindNextFileW
FindFirstFileExW
FindClose
HeapReAlloc
HeapSize
HeapAlloc
HeapFree
GetCurrentThread
WriteFile
GetStdHandle
GetModuleHandleExW
ExitProcess
TlsFree
TlsSetValue
TlsGetValue
TlsAlloc
InitializeCriticalSectionAndSpinCount
EncodePointer
SetLastError
RtlUnwindEx
RtlPcToFileHeader
InitializeSListHead
GetSystemTimeAsFileTime
GetCurrentProcessId
QueryPerformanceCounter
GetStartupInfoW
IsProcessorFeaturePresent
TerminateProcess
GetCurrentProcess
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
OutputDebugStringW
IsDebuggerPresent
WaitForSingleObjectEx
OpenEventW
WideCharToMultiByte
SystemTimeToFileTime
FileTimeToSystemTime
LocalFree
GetTickCount
GetLocalTime
GetSystemTime
CreateProcessW
CreateThread
Sleep
CreateEventW
WaitForSingleObject
ResetEvent
SetEvent
CloseHandle
MultiByteToWideChar
lstrcmpiW
FindResourceW
SizeofResource
LoadResource
LoadLibraryExW
GetProcAddress
GetModuleHandleW
GetModuleFileNameW
FreeLibrary
GetCurrentThreadId
DeleteCriticalSection
InitializeCriticalSectionEx
LeaveCriticalSection
EnterCriticalSection
HeapSetInformation
GetLastError
RaiseException
VerSetConditionMask

user32

GetMessageW
LoadStringW
CharUpperBuffW
ShowWindow
PostThreadMessageW
CharNextW
DispatchMessageW

advapi32

DuplicateToken
RevertToSelf
OpenThreadToken
OpenProcessToken
DuplicateTokenEx
CreateProcessAsUserW
RegQueryValueExW
QueryServiceStatus
StartServiceW
EnumDependentServicesW
ChangeServiceConfigW
QueryServiceConfigW
CopySid
RegNotifyChangeKeyValue
CheckTokenMembership
CryptDestroyKey
CryptSetHashParam
EventUnregister
CryptSignHashW
CryptAcquireContextW
RegCloseKey
RegCreateKeyExW
RegDeleteKeyW
RegDeleteValueW
RegEnumKeyExW
RegOpenKeyExW
RegQueryInfoKeyW
RegSetValueExW
ConvertStringSidToSidW
ChangeServiceConfig2W
CloseServiceHandle
ControlService
CreateServiceW
DeleteService
OpenSCManagerW
OpenServiceW
QueryServiceStatusEx
RegisterServiceCtrlHandlerExW
SetServiceStatus
StartServiceCtrlDispatcherW
GetLengthSid
CryptCreateHash
CryptHashData
IsValidSid
CryptDestroyHash
ImpersonateLoggedOnUser
ConvertSidToStringSidW
GetTokenInformation
CryptGetHashParam
CryptReleaseContext
FreeSid
AllocateAndInitializeSid
EqualSid
LookupAccountSidW

ole32

CoUninitialize
StringFromGUID2
CoInitializeEx
CoTaskMemFree
CoTaskMemRealloc
CoTaskMemAlloc
CoCreateInstance
CLSIDFromString
CoSetProxyBlanket
CoQueryProxyBlanket
CoCreateFreeThreadedMarshaler
CLSIDFromProgID
CoCreateGuid
CoWaitForMultipleHandles

oleaut32

VariantCopy
VariantTimeToSystemTime
SysFreeString
VarUI4FromStr
SysAllocString
SysStringLen
VariantInit
VariantClear
SysAllocStringLen
SysAllocStringByteLen
VariantChangeType

ws2_32

getsockname
ntohs
getnameinfo
WSASocketW
select
socket
setsockopt
listen
bind
htons
accept
WSAGetOverlappedResult
WSAIoctl
WSARecv
closesocket
WSASend
WSAEventSelect
ioctlsocket
WSAGetLastError
getpeername

crypt32

CertCompareCertificateName
CertFreeCertificateContext
CertControlStore
CertGetCertificateChain
CertFindChainInStore
CryptDecodeObject
CryptAcquireCertificatePrivateKey
CertGetCertificateContextProperty
CertOpenStore
CertCloseStore
CertDuplicateCertificateContext
CertEnumCertificatesInStore
CryptDecodeObjectEx
CertStrToNameW
CertGetNameStringW
CertGetValidUsages
CertVerifyTimeValidity
CertAddCertificateContextToStore
CertNameToStrW
CryptVerifyCertificateSignatureEx
CertFreeCertificateChain
CertFindCertificateInStore
CertVerifyCertificateChainPolicy

ntdsapi

DsServerRegisterSpnW

rdpcoresccm

RDPAPI_CreateInstance

shlwapi

PathAppendW

secur32

CompleteAuthToken
InitSecurityInterfaceW
FreeContextBuffer

netapi32

DsRoleGetPrimaryDomainInformation
DsRoleFreeMemory

wtsapi32

WTSFreeMemory
WTSQuerySessionInformationW
WTSQueryUserToken
WTSEnumerateSessionsW

Sections

.text
Size: 558KB - Virtual size: 558KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 2.9MB - Virtual size: 2.9MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 16KB - Virtual size: 23KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 19KB - Virtual size: 18KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

_RDATA
Size: 512B - Virtual size: 244B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 10KB - Virtual size: 10KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 3KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

65732a5a4e7130357bdc0b32d0e82f07

Code Sign

33:00:00:02:cc:8e:b5:96:a6:bd:d1:c9:4e:00:00:00:00:02:ccCertificate

Extended Key Usages

61:0e:90:d2:00:00:00:00:00:03Certificate

Key Usages

03:38:d8:24:6c:89:36:9e:33:76:ec:f3:c1:d2:e6:c4:f0:e6:04:41:45:40:fb:3c:7a:1e:d9:d6:63:bf:43:60Signer

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

user32

advapi32

ole32

oleaut32

ws2_32

crypt32

ntdsapi

rdpcoresccm

shlwapi

secur32

netapi32

wtsapi32

Sections

.text Size: 558KB - Virtual size: 558KB

.rdata Size: 2.9MB - Virtual size: 2.9MB

.data Size: 16KB - Virtual size: 23KB

.pdata Size: 19KB - Virtual size: 18KB

_RDATA Size: 512B - Virtual size: 244B

.rsrc Size: 10KB - Virtual size: 10KB

.reloc Size: 3KB - Virtual size: 3KB

33:00:00:02:cc:8e:b5:96:a6:bd:d1:c9:4e:00:00:00:00:02:cc
Certificate

61:0e:90:d2:00:00:00:00:00:03
Certificate

03:38:d8:24:6c:89:36:9e:33:76:ec:f3:c1:d2:e6:c4:f0:e6:04:41:45:40:fb:3c:7a:1e:d9:d6:63:bf:43:60
Signer

.text
Size: 558KB - Virtual size: 558KB

.rdata
Size: 2.9MB - Virtual size: 2.9MB

.data
Size: 16KB - Virtual size: 23KB

.pdata
Size: 19KB - Virtual size: 18KB

_RDATA
Size: 512B - Virtual size: 244B

.rsrc
Size: 10KB - Virtual size: 10KB

.reloc
Size: 3KB - Virtual size: 3KB