PrintWSDAHost[.]dll

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General

Target

PrintWSDAHost.dll
Size

119KB
MD5

643693b4e462180b8f1632e8210b66cd
SHA1

f7df04bf1d18de613173672d276ad2c1f1ef10f6
SHA256

f8e8ec09e2c38ca350a6961e68bf0d7c307956f087ea2544f415ba1ca8c7c60d
SHA512

3946c330192c7658d7b1ee88c32e2f5d9eff6e7ef6b0be20f3e08ccf63a5746f94041eff05a43b786d1c2b61a8c3c0d07167e93943ba22bee4e130585c8e975d
SSDEEP

3072:0Rz9n6OVXFW8Smz6uOcq4KwEo3BYV2uisfXefUN/954KJ:0uON88Hz6Tx4KwV3u2u5X1zp

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
PrintWSDAHost.dll

Files

PrintWSDAHost.dll
.dll windows:10 windows x86 arch:x86

a78f8ad961e158be1cbe41688a56df46

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
IMAGE_FILE_DLL

PDB Paths

PrintWSDAHost.pdb

Imports

msvcrt

_except_handler4_common
??1type_info@@UAE@XZ
memcmp
_onexit
__dllonexit
_unlock
_lock
_initterm
_amsg_exit
_XcptFilter
_CxxThrowException
_callnewh
?what@exception@@UBEPBDXZ
??1exception@@UAE@XZ
??0exception@@QAE@ABV0@@Z
??0exception@@QAE@XZ
malloc
_purecall
_vsnwprintf
memcpy_s
_wcsicmp
memmove_s
wcscspn
wcsrchr
toupper
__CxxFrameHandler3
free
memmove
memset

user32

IsWindow
DispatchMessageW
TranslateMessage
GetMessageW
SendMessageW
PostMessageW
MapWindowPoints
SetForegroundWindow
GetClientRect
DefWindowProcW
GetWindowLongW

rpcrt4

IUnknown_QueryInterface_Proxy
CStdStubBuffer_Disconnect
CStdStubBuffer_DebugServerRelease
NdrOleAllocate
CStdStubBuffer_QueryInterface
CStdStubBuffer_IsIIDSupported
CStdStubBuffer_Connect
NdrDllGetClassObject
NdrDllCanUnloadNow
NdrCStdStubBuffer_Release
CStdStubBuffer_Invoke
IUnknown_AddRef_Proxy
CStdStubBuffer_DebugServerQueryInterface
NdrOleFree
CStdStubBuffer_AddRef
IUnknown_Release_Proxy
CStdStubBuffer_CountRefs

winspool.drv

GetPrinterDriverW
ClosePrinter
OpenPrinterW
GetPrinterDataExW

ntdll

WinSqmIsOptedIn
WinSqmAddToStream

shell32

SHGetKnownFolderItem
SHCreateItemFromRelativeName

combase

ord2
ord3

shlwapi

ord16
SHStrDupW
ord278
ord212
ord240

duser

CreateAction
DeleteHandle

dui70

InitProcessPriv
?DestroyAll@Element@DirectUI@@QAEJ_N@Z
?Destroy@Element@DirectUI@@QAEJ_N@Z
InitThread
UnInitThread
UnInitProcessPriv

cfgmgr32

DevFreeObjectProperties
DevGetObjectProperties

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

RegisterTraceGuidsW
TraceMessage
GetTraceLoggerHandle
GetTraceEnableFlags
UnregisterTraceGuids
GetTraceEnableLevel

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

GetModuleHandleW
DisableThreadLibraryCalls
FindResourceExW
GetProcAddress
LoadResource
GetModuleHandleExW
LockResource
GetModuleFileNameA

api-ms-win-core-winrt-error-l1-1-0

SetRestrictedErrorInfo
RoOriginateError

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

EncodePointer
DecodePointer

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

LeaveCriticalSection
EnterCriticalSection
CreateEventW
InitializeSRWLock
DeleteCriticalSection
InitializeCriticalSectionEx
SetEvent
AcquireSRWLockShared
ReleaseSRWLockShared
AcquireSRWLockExclusive
ReleaseSRWLockExclusive
ReleaseSemaphore
ReleaseMutex
WaitForSingleObjectEx
OpenSemaphoreW
WaitForSingleObject
ResetEvent
CreateSemaphoreExW
CreateMutexExW

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

InitOnceComplete
InitOnceBeginInitialize
Sleep
WakeAllConditionVariable
SleepConditionVariableSRW
InitOnceInitialize
InitOnceExecuteOnce

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

QueryPerformanceCounter

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

GetCurrentThreadId
TerminateProcess
GetCurrentProcessId
GetCurrentProcess

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

GetSystemTimeAsFileTime
GetTickCount

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

RaiseException
GetLastError
UnhandledExceptionFilter
SetUnhandledExceptionFilter
SetLastError

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

CoReleaseMarshalData
CoMarshalInterThreadInterfaceInStream
CoGetInterfaceAndReleaseStream
CoCreateInstance
CoGetStdMarshalEx
CoGetClassObject
CoGetMalloc
StringFromGUID2
CoWaitForMultipleHandles
CoCreateFreeThreadedMarshaler
CoTaskMemAlloc
CoTaskMemRealloc
PropVariantClear
CoTaskMemFree

oleaut32

SysStringLen
BSTR_UserFree
SysAllocString
BSTR_UserUnmarshal
VariantInit
BSTR_UserSize
BSTR_UserMarshal
SysAllocStringLen
SysFreeString

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

OutputDebugStringW
IsDebuggerPresent
DebugBreak

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

WindowsCreateStringReference
WindowsCreateString
WindowsDuplicateString
WindowsSubstringWithSpecifiedLength
WindowsGetStringRawBuffer
WindowsDeleteString

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

MultiByteToWideChar
CompareStringOrdinal

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

RoActivateInstance
RoUninitialize
RoGetActivationFactory
RoInitialize

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

FormatMessageW

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

LocalAlloc
LocalFree
LocalReAlloc

api-ms-win-core-winrt-error-l1-1-1

RoGetMatchingRestrictedErrorInfo

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

CloseHandle

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

RoGetAgileReference

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

HeapFree
GetProcessHeap
HeapAlloc

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

EventWriteTransfer
EventUnregister
EventProviderEnabled
EventActivityIdControl
EventRegister
EventSetInformation

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

RegCloseKey
RegGetValueW
RegOpenKeyExW

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

GetTempPathW

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

CloseThreadpoolTimer
CreateThreadpoolTimer
WaitForThreadpoolTimerCallbacks
SetThreadpoolTimer

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

HWND_UserFree
HWND_UserSize
HWND_UserUnmarshal
HWND_UserMarshal

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

ApiSetQueryApiSetPresence

Exports

Exports

DllCanUnloadNow
DllGetClassObject

Sections

.text
Size: 100KB - Virtual size: 100KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 1KB - Virtual size: 1KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

a78f8ad961e158be1cbe41688a56df46

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

msvcrt

user32

rpcrt4

winspool.drv

ntdll

shell32

combase

shlwapi

duser

dui70

cfgmgr32

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

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

api-ms-win-core-winrt-error-l1-1-0

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

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

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

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

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

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

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

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

oleaut32

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

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

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

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

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

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

api-ms-win-core-winrt-error-l1-1-1

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

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

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

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

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

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

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

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

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

Exports

Exports

Sections

.text Size: 100KB - Virtual size: 100KB

.data Size: 512B - Virtual size: 1KB

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

.rsrc Size: 1KB - Virtual size: 1KB

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

.text
Size: 100KB - Virtual size: 100KB

.data
Size: 512B - Virtual size: 1KB

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

.rsrc
Size: 1KB - Virtual size: 1KB

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