MpSigStub[.]exe

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General

Target

MpSigStub.exe
Size

784KB
MD5

01f92dc7a766ff783ae7af40fd0334fb
SHA1

45d7b8e98e22f939ed0083fe31204caa9a72fa76
SHA256

fa42b9b84754e2e8368e8929fa045be86dbd72678176ee75814d2a16d23e5c26
SHA512

bea5f3d7fb0984c4a71720f25644ce3151fcdc95586e1e2ffe804d04567aaf30d8678608110e241c7ddf908f94882eddd84a994573b0c808d1c064f0e135a583
SSDEEP

24576:Ghj1QlBYDgtUUvie3n+pB3+ojRlcD1VyZTFXk:GhpQlBHtBYla1VyZpU

Score

1^/10

Malware Config

Signatures

Files

MpSigStub.exe
.exe windows x64

17c9015af786e0332059f422b92fb6bb

Code Sign

33:00:00:03:f1:62:06:e3:e7:ef:da:8a:be:00:00:00:00:03:f1
Certificate

Issuer

CN=Microsoft Code Signing PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Not Before

15/12/2020, 21:24

Not After

02/12/2021, 21:24

Subject

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

Extended Key Usages

ExtKeyUsageCodeSigning

61:0c:52:4c:00:00:00:00:00:03
Certificate

Issuer

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

Not Before

06/07/2010, 20:40

Not After

06/07/2025, 20:50

Subject

CN=Microsoft Code Signing PCA 2010,O=Microsoft Corporation,L=Redmond,ST=Washington,C=US

Key Usages

KeyUsageDigitalSignature
KeyUsageCertSign
KeyUsageCRLSign

ca:86:4e:9f:70:cd:e9:c7:38:02:0a:6e:36:ec:ec:b3:23:2e:2d:e4:c8:9b:e1:e1:ba:b3:27:aa:fe:76:16:56
Signer

Actual PE Digest

ca:86:4e:9f:70:cd:e9:c7:38:02:0a:6e:36:ec:ec:b3:23:2e:2d:e4:c8:9b:e1:e1:ba:b3:27:aa:fe:76:16:56

Digest Algorithm

sha256

PE Digest Matches

true

Signature Validations

Trusted

false

Verification

Signing Certificate

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

21/03/2023, 12:26
Valid: false

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

advapi32

EnumerateTraceGuids
ControlTraceW
TraceMessage
EventWriteTransfer
StartTraceW
EnableTrace
CloseServiceHandle
RegCloseKey
UnregisterTraceGuids
RegisterTraceGuidsW
GetTraceEnableLevel
GetTraceEnableFlags
GetTraceLoggerHandle
LookupPrivilegeValueW
SetSecurityDescriptorDacl
AdjustTokenPrivileges
AllocateAndInitializeSid
CopySid
FreeSid
CheckTokenMembership
InitializeSecurityDescriptor
QueryServiceStatusEx
OpenServiceW
StartServiceW
OpenSCManagerW
QueryServiceStatus
EventUnregister
EventRegister
OpenProcessToken
DecryptFileW
RegQueryValueExW
RegDeleteValueW
RegOpenKeyExW
RegSetValueExW
RegCreateKeyExW
RegNotifyChangeKeyValue
GetTokenInformation
GetLengthSid
InitializeAcl
AddAccessAllowedAce

kernel32

GetCurrentProcessId
GetLastError
SetEndOfFile
SetLastError
FreeLibrary
Sleep
CloseHandle
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
IsProcessorFeaturePresent
GetCurrentThread
GetCurrentThreadId
HeapAlloc
HeapFree
EnterCriticalSection
LeaveCriticalSection
DeleteCriticalSection
GetStdHandle
GetFileType
GetStartupInfoW
FlsAlloc
FlsGetValue
FlsSetValue
FlsFree
InitializeCriticalSectionAndSpinCount
GetSystemTimeAsFileTime
GetProcAddress
LoadLibraryExW
GetDateFormatW
GetTimeFormatW
LCMapStringW
IsValidCodePage
GetACP
GetOEMCP
GetCPInfo
GetStringTypeW
MultiByteToWideChar
ExitProcess
GetModuleHandleW
GetModuleHandleExW
GetProcessHeap
WideCharToMultiByte
SetStdHandle
GetFileSizeEx
SetFilePointerEx
ReadFile
GetConsoleMode
ReadConsoleW
FlushFileBuffers
WriteFile
GetConsoleOutputCP
GetModuleFileNameW
HeapSize
HeapReAlloc
CreateFileW
WriteConsoleW
RaiseException
QueryPerformanceCounter
InitializeSListHead
EncodePointer
InitializeCriticalSectionEx
SetFileAttributesW
CopyFileW
CreateToolhelp32Snapshot
Process32NextW
Process32FirstW
GetProcessTimes
GetCommandLineW
SetWaitableTimer
CreateWaitableTimerW
CreateDirectoryW
GetThreadTimes
CancelIo
CreateNamedPipeW
PeekNamedPipe
FindClose
DisconnectNamedPipe
DeleteFileW
VirtualQuery
ConnectNamedPipe
SizeofResource
SetFileTime
VirtualUnlock
SetFilePointer
LockResource
LoadResource
FindResourceW
SystemTimeToFileTime
GetSystemTime
DosDateTimeToFileTime
GlobalMemoryStatusEx
GetEnvironmentVariableW
GetTempPathW
GetSystemDirectoryW
FormatMessageW
GetNativeSystemInfo
HeapSetInformation
GetCurrentDirectoryW
LocalFree
GetSystemWindowsDirectoryW
FindFirstFileW
GetFullPathNameW
FindNextFileW
ExpandEnvironmentStringsW
RemoveDirectoryW
WaitForSingleObject
GetFileAttributesW
OpenProcess
CreateEventW
SetEvent
WaitForSingleObjectEx
ResetEvent
VirtualLock
WaitForMultipleObjects
FindFirstFileExW
GetCommandLineA
GetEnvironmentStringsW
FreeEnvironmentStringsW
DecodePointer

rpcrt4

UuidCreate
UuidFromStringW

ntdll

NtQueryInformationProcess
NtSetInformationFile
RtlPcToFileHeader
RtlNtStatusToDosError
RtlUnwindEx
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
NtQueryInformationFile
RtlGetVersion

Sections

.text
Size: 600KB - Virtual size: 596KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 136KB - Virtual size: 133KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 8KB - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 20KB - Virtual size: 17KB

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: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

17c9015af786e0332059f422b92fb6bb

Code Sign

33:00:00:03:f1:62:06:e3:e7:ef:da:8a:be:00:00:00:00:03:f1Certificate

Extended Key Usages

61:0c:52:4c:00:00:00:00:00:03Certificate

Key Usages

ca:86:4e:9f:70:cd:e9:c7:38:02:0a:6e:36:ec:ec:b3:23:2e:2d:e4:c8:9b:e1:e1:ba:b3:27:aa:fe:76:16:56Signer

Signature Validations

Verification

21/03/2023, 12:26 Valid: false

Headers

DLL Characteristics

File Characteristics

Imports

advapi32

kernel32

rpcrt4

ntdll

Sections

.text Size: 600KB - Virtual size: 596KB

.rdata Size: 136KB - Virtual size: 133KB

.data Size: 8KB - Virtual size: 11KB

.pdata Size: 20KB - Virtual size: 17KB

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

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

33:00:00:03:f1:62:06:e3:e7:ef:da:8a:be:00:00:00:00:03:f1
Certificate

61:0c:52:4c:00:00:00:00:00:03
Certificate

ca:86:4e:9f:70:cd:e9:c7:38:02:0a:6e:36:ec:ec:b3:23:2e:2d:e4:c8:9b:e1:e1:ba:b3:27:aa:fe:76:16:56
Signer

21/03/2023, 12:26
Valid: false

.text
Size: 600KB - Virtual size: 596KB

.rdata
Size: 136KB - Virtual size: 133KB

.data
Size: 8KB - Virtual size: 11KB

.pdata
Size: 20KB - Virtual size: 17KB

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

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