SysprepProvider[.]dll

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General

Target

SysprepProvider.dll
Size

778KB
MD5

8bd67d87dbdcf881fb9c1f4f6bf83f46
SHA1

10bd2e541b6a125c29f05958f496edf31ff9abb1
SHA256

f9b4d0afe87f434e8319556961b292ddc7d3a8c6fc06b8a08a50b5a96e28a204
SHA512

258a4075a3149669ccd6ff602f71a721b195c9d15dea22d994d4d3e35cdf27beb0b8b8f5da8f52914f769642f89edbb1d9d857087778be713a874571a2ec6f89
SSDEEP

6144:LxNAWynmU7aAbLZPrrAQGGhYMb39YDNWUzWfpI9WSj:LxNAHVRXlrrNGGhYEYDMU06

Score

1^/10

Malware Config

Signatures

Files

SysprepProvider.dll
.dll regsvr32 windows:10 windows x64 arch:x64

857bb83db208b46d3c24aa3a74ec62e5

Code Sign

33:00:00:02:66:bd:15:80:ef:a7:5c:d6:d3:00:00:00:00:02:66
Certificate

Issuer

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

Not Before

04/03/2020, 18:30

Not After

03/03/2021, 18:30

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

56:16:a5:89:b2:c9:fe:48:63:4c:56:43:3f:43:d1:c7:3e:ed:19:bd:05:fd:1a:6c:4b:ce:c6:59:ca:4a:a4:91
Signer

Actual PE Digest

56:16:a5:89:b2:c9:fe:48:63:4c:56:43:3f:43:d1:c7:3e:ed:19:bd:05:fd:1a:6c:4b:ce:c6:59:ca:4a:a4:91

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

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_REMOVABLE_RUN_FROM_SWAP
IMAGE_FILE_NET_RUN_FROM_SWAP
IMAGE_FILE_DLL

Imports

msvcrt

wcsstr
wcsncmp
iswalpha
iswspace
??0exception@@QEAA@XZ
?name@type_info@@QEBAPEBDXZ
_wcsupr_s
_wcsnicmp
_wcslwr_s
__RTtypeid
wcstol
time
_wctime
wcschr
_vsnwprintf
_vsnprintf
wcsrchr
__RTDynamicCast
memcmp
memcpy
??1type_info@@UEAA@XZ
_onexit
__dllonexit
_unlock
_lock
?terminate@@YAXXZ
_initterm
_amsg_exit
_XcptFilter
_CxxThrowException
_callnewh
??0exception@@QEAA@AEBQEBDH@Z
malloc
calloc
memmove_s
_wcsicmp
??0exception@@QEAA@AEBQEBD@Z
?what@exception@@UEBAPEBDXZ
??1exception@@UEAA@XZ
??0exception@@QEAA@AEBV0@@Z
memcpy_s
_purecall
vswprintf_s
_vscwprintf
wcsncpy_s
wcscat_s
free
wcscpy_s
__C_specific_handler
__CxxFrameHandler3
memset

ntdll

RtlDosPathNameToRelativeNtPathName_U_WithStatus
NtSetInformationFile
NtSetSystemInformation
RtlFreeHeap
RtlAllocateHeap
RtlNtStatusToDosError
RtlGetVersion
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext

advapi32

AdjustTokenPrivileges
QueryServiceStatus
CloseServiceHandle
NotifyServiceStatusChangeW
ControlService
EnumDependentServicesW
StartServiceW
OpenServiceW
RegDeleteTreeW
RegSetValueExW
RegDeleteValueW
RegEnumValueW
GetTraceLoggerHandle
GetTraceEnableFlags
GetTraceEnableLevel
RegisterTraceGuidsW
UnregisterTraceGuids
LookupPrivilegeValueW
OpenProcessToken
EventUnregister
EventRegister
EventWriteTransfer
TraceEvent
OpenSCManagerW
RegCreateKeyExW
RegQueryValueExW
RegOpenKeyExW
RegCloseKey
RegQueryInfoKeyW

kernel32

SetFilePointer
ReadFile
MapViewOfFile
DisableThreadLibraryCalls
GetThreadLocale
SetThreadLocale
DeleteCriticalSection
RaiseException
GetLastError
GetModuleFileNameW
GetProcAddress
LoadLibraryExW
GetModuleHandleW
InitializeCriticalSection
EnterCriticalSection
LeaveCriticalSection
SetThreadUILanguage
MultiByteToWideChar
OutputDebugStringW
GetCurrentThreadId
GetCurrentProcessId
FreeLibrary
GetVolumePathNameW
GetVolumeNameForVolumeMountPointW
SetEvent
HeapAlloc
GetProcessHeap
HeapFree
CreateEventW
CreateWaitableTimerW
SetWaitableTimer
CancelWaitableTimer
CloseHandle
HeapSize
HeapReAlloc
HeapDestroy
CompareStringW
GetEnvironmentVariableW
WideCharToMultiByte
Sleep
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetCurrentProcess
TerminateProcess
QueryPerformanceCounter
GetSystemInfo
GetTickCount
GetVersionExW
SetLastError
LocalFree
SizeofResource
FindFirstFileNameW
CreateFileMappingW
UnmapViewOfFile
SearchPathW
SetErrorMode
FindNextFileNameW
IsWow64Process
TerminateThread
GetExitCodeThread
WaitForMultipleObjects
GetModuleHandleExW
LockResource
LoadResource
FindResourceExW
WritePrivateProfileStringW
GetFullPathNameW
CreateDirectoryW
FlushFileBuffers
DeleteFileW
SetFileInformationByHandle
GetFileInformationByHandle
SetFileAttributesW
FindClose
DeviceIoControl
FindNextFileW
FindFirstFileW
GetFileInformationByHandleEx
SleepEx
CreateThread
FormatMessageW
WaitForSingleObject
CreateFileW
ExitProcess
RemoveDirectoryW
GetFileAttributesW
GetFileAttributesExW
VirtualQuery
HeapValidate
HeapCompact
DebugBreak
ExpandEnvironmentStringsW
GetSystemTimeAsFileTime

ole32

StringFromGUID2
CoCreateInstance

user32

CharNextW
CharLowerBuffW

oleaut32

VariantInit
SysAllocStringLen
VarBstrCmp
LoadRegTypeLi
VariantClear
SysAllocStringByteLen
SysStringByteLen
SysStringLen
RegisterTypeLi
LoadTypeLi
SysFreeString
UnRegisterTypeLi
SysAllocString

wimgapi

WIMGetMountedImageInfo

wdscore

WdsSetupLogMessageW
ConstructPartialMsgVW
CurrentIP

Exports

Exports

DLLGetDISMProviderCLSID
DllCanUnloadNow
DllGetClassObject
DllRegisterServer
DllUnregisterServer

Sections

.text
Size: 381KB - Virtual size: 381KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 323KB - Virtual size: 322KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 35KB - Virtual size: 37KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 18KB - Virtual size: 17KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 8KB - Virtual size: 7KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

857bb83db208b46d3c24aa3a74ec62e5

Code Sign

33:00:00:02:66:bd:15:80:ef:a7:5c:d6:d3:00:00:00:00:02:66Certificate

Extended Key Usages

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

Key Usages

56:16:a5:89:b2:c9:fe:48:63:4c:56:43:3f:43:d1:c7:3e:ed:19:bd:05:fd:1a:6c:4b:ce:c6:59:ca:4a:a4:91Signer

Headers

DLL Characteristics

File Characteristics

Imports

msvcrt

ntdll

advapi32

kernel32

ole32

user32

oleaut32

wimgapi

wdscore

Exports

Exports

Sections

.text Size: 381KB - Virtual size: 381KB

.rdata Size: 323KB - Virtual size: 322KB

.data Size: 35KB - Virtual size: 37KB

.pdata Size: 18KB - Virtual size: 17KB

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

.reloc Size: 8KB - Virtual size: 7KB

33:00:00:02:66:bd:15:80:ef:a7:5c:d6:d3:00:00:00:00:02:66
Certificate

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

56:16:a5:89:b2:c9:fe:48:63:4c:56:43:3f:43:d1:c7:3e:ed:19:bd:05:fd:1a:6c:4b:ce:c6:59:ca:4a:a4:91
Signer

.text
Size: 381KB - Virtual size: 381KB

.rdata
Size: 323KB - Virtual size: 322KB

.data
Size: 35KB - Virtual size: 37KB

.pdata
Size: 18KB - Virtual size: 17KB

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

.reloc
Size: 8KB - Virtual size: 7KB