MsMpEng[.]exe | Triage

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General

Target

MsMpEng.exe
Size

130KB
MD5

5d5608654828cf052ba013b3c37cbb61
SHA1

5bfbb0f965e2761d75a51faacc9db6a146a7c5ae
SHA256

52bd0a4d149f7913b9c3ba111eff1e75188abfcdc54b927390bc3bfad419860e
SHA512

35ef1582f90887cc179f6dbff0481e2e944c0b94f3ecb2fcbede4ec02e6e5a4ad1224e869f87209d535efd7fb43b589a59cb6cd928f83aca69c7688af2514e72
SSDEEP

3072:/vFTTgHn92SaEU1oy53JW4s71KTecqDpENRzEtHwc:/RgHnZ3U1T53JWDpENRA9v

Score

1^/10

Malware Config

Signatures

Files

MsMpEng.exe
.exe windows x64

687123f1c206e22e386166a0d2a899f7

Code Sign

33:00:00:03:ef:5e:9b:c0:d6:1b:1a:67:fc:00:00:00:00:03:ef
Certificate

Issuer

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

Not Before

13/10/2022, 19:43

Not After

11/10/2023, 19:43

Subject

CN=Microsoft Windows Publisher,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

47:54:47:76:16:d7:bf:85:19:04:dc:94:61:55:7b:94:2a:8f:98:a1:81:1b:17:6e:67:70:9c:2b:a7:6a:04:b9
Signer

Actual PE Digest

47:54:47:76:16:d7:bf:85:19:04:dc:94:61:55:7b:94:2a:8f:98:a1:81:1b:17:6e:67:70:9c:2b:a7:6a:04:b9

Digest Algorithm

sha256

PE Digest Matches

true

Signature Validations

Trusted

false

Verification

Signing Certificate

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

27/02/2023, 09:37
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

advapi32

UnregisterTraceGuids
RegisterTraceGuidsW
GetTraceEnableLevel
GetTraceEnableFlags
GetTraceLoggerHandle
TraceMessage
RegCloseKey
RegOpenKeyExW
EventWriteTransfer
EventUnregister
EventRegister
RegQueryValueExW
RegSetValueExW

kernel32

IsProcessorFeaturePresent
GetModuleHandleW
TerminateProcess
RaiseException
SetLastError
FlsAlloc
FlsGetValue
FlsSetValue
FlsFree
EncodePointer
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionEx
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
FindFirstFileW
FindNextFileW
ExpandEnvironmentStringsW
IsDebuggerPresent
FindClose
CreateFileW
GetFileAttributesW
CreateEventW
LoadLibraryExW
GetModuleFileNameW
GetSystemDirectoryW
SetUnhandledExceptionFilter
HeapSetInformation
GetProcessHeap
HeapAlloc
HeapFree
DecodePointer
InitializeSListHead
GetSystemTimeAsFileTime
GetCurrentThreadId
GetCurrentProcessId
QueryPerformanceCounter
VirtualLock
SetErrorMode
CloseHandle
GetCurrentProcess
FreeLibrary
GetProcAddress
GetLastError
UnhandledExceptionFilter

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

_wcsicmp
towlower
isdigit
iswspace
strcpy_s

crypt32

CertVerifyCertificateChainPolicy

wintrust

CryptCATAdminAcquireContext
CryptCATAdminReleaseCatalogContext
CryptCATCatalogInfoFromContext
WTHelperGetProvSignerFromChain
CryptCATAdminReleaseContext
CryptCATAdminEnumCatalogFromHash
WinVerifyTrust
WTHelperProvDataFromStateData
CryptCATAdminCalcHashFromFileHandle

ntdll

RtlUnwindEx
RtlPcToFileHeader
RtlGetVersion
RtlLookupFunctionEntry
RtlCaptureContext
RtlNtStatusToDosError
RtlVirtualUnwind

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

_initialize_wide_environment
exit
_configure_wide_argv
_exit
_set_app_type
__p___argc
_seh_filter_exe
abort
_initterm_e
terminate
_crt_atexit
_register_onexit_function
_initialize_onexit_table
_invalid_parameter_noinfo_noreturn
_errno
__p___wargv
_initterm
_get_initial_wide_environment
_register_thread_local_exe_atexit_callback
_c_exit
_cexit

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

_wfopen
_set_fmode
fgetws
__stdio_common_vsprintf
__stdio_common_vswprintf
feof
__p__commode
fclose

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

_configthreadlocale

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

_callnewh
_set_new_mode
_calloc_base
malloc
free
_free_base

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

wcstol

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

ceilf

Sections

.text
Size: 72KB - Virtual size: 69KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 24KB - Virtual size: 22KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 4KB - Virtual size: 5KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 8KB - Virtual size: 4KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 4KB - Virtual size: 356B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

687123f1c206e22e386166a0d2a899f7

Code Sign

33:00:00:03:ef:5e:9b:c0:d6:1b:1a:67:fc:00:00:00:00:03:efCertificate

Extended Key Usages

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

Key Usages

47:54:47:76:16:d7:bf:85:19:04:dc:94:61:55:7b:94:2a:8f:98:a1:81:1b:17:6e:67:70:9c:2b:a7:6a:04:b9Signer

Signature Validations

Verification

27/02/2023, 09:37 Valid: false

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

kernel32

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

crypt32

wintrust

ntdll

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

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

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

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

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

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

Sections

.text Size: 72KB - Virtual size: 69KB

.rdata Size: 24KB - Virtual size: 22KB

.data Size: 4KB - Virtual size: 5KB

.pdata Size: 8KB - Virtual size: 4KB

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

.reloc Size: 4KB - Virtual size: 356B

33:00:00:03:ef:5e:9b:c0:d6:1b:1a:67:fc:00:00:00:00:03:ef
Certificate

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

47:54:47:76:16:d7:bf:85:19:04:dc:94:61:55:7b:94:2a:8f:98:a1:81:1b:17:6e:67:70:9c:2b:a7:6a:04:b9
Signer

27/02/2023, 09:37
Valid: false

.text
Size: 72KB - Virtual size: 69KB

.rdata
Size: 24KB - Virtual size: 22KB

.data
Size: 4KB - Virtual size: 5KB

.pdata
Size: 8KB - Virtual size: 4KB

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

.reloc
Size: 4KB - Virtual size: 356B