SDClient[.]dll

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General

Target

SDClient.dll
Size

215KB
MD5

0f1a4859b39660001d1e74c027d2ed92
SHA1

1356a5e7c7adf123d40c773510713f6354eb98d8
SHA256

c876b1f3d14c9e213f33054d0c32b98f6e269e88bb3a7cfd05cba3ddba929ef7
SHA512

577a2807f97edab55fa675b403b79c98ba3fc8b59987c25df9a2469e486bdad6039e684f47bcaae4ae4866a414f412921abdbb59ce92b3ffa2d2df74c08e79ec
SSDEEP

6144:AqRO29JBea7yo8NWvFnyulyLozkxk4IgU0Wm6lP:xbpFnXlyIkC4GDP

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
SDClient.dll

Files

SDClient.dll
.dll regsvr32 windows:10 windows x86 arch:x86

d3548201a1ff9fc5693e23edddf3da60

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

SDClient.pdb

Imports

msvcrt

??1type_info@@UAE@XZ
_errno
realloc
_vsnprintf
_ultow
??0exception@@QAE@ABV0@@Z
_except_handler4_common
_unlock
__dllonexit
_onexit
_wcsicmp
?what@exception@@UBEPBDXZ
??1exception@@UAE@XZ
??0exception@@QAE@ABQBD@Z
memmove_s
_callnewh
_CxxThrowException
_vsnwprintf
_purecall
wcscat_s
_XcptFilter
_amsg_exit
_initterm
wcscpy_s
memcpy_s
free
malloc
qsort
memcpy
memcmp
_lock
_resetstkoflw
wcsncpy_s
__CxxFrameHandler3
??0exception@@QAE@XZ
?terminate@@YAXXZ
memset

ntdll

EtwEventUnregister
NtDuplicateToken
RtlAcquireResourceExclusive
RtlReleaseResource
RtlAcquireResourceShared
RtlEqualSid
RtlLengthSid
RtlNtStatusToDosError
RtlAllocateAndInitializeSid
RtlIpv4StringToAddressW
RtlIpv6StringToAddressW
RtlIpv6AddressToStringW
RtlInitializeResource
RtlDeleteResource
RtlFreeSid
RtlVerifyVersionInfo

oleaut32

SysAllocStringLen
VarBstrCmp
VarUI4FromStr
UnRegisterTypeLi
SysStringByteLen
SysAllocStringByteLen
SysAllocString
SysStringLen
RegisterTypeLi
SysFreeString
LoadTypeLi

rpcrt4

RpcStringFreeW
RpcBindingFree
RpcBindingSetAuthInfoExW
RpcRevertToSelf
RpcImpersonateClient
RpcEpResolveBinding
NdrServerCall2
RpcServerUseProtseqEpW
RpcServerRegisterIf
RpcServerListen
RpcBindingVectorFree
RpcServerUnregisterIf
RpcMgmtStopServerListening
RpcStringBindingComposeW
RpcBindingFromStringBindingW
NdrClientCall2

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

LocalAlloc
LocalFree

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

LoadResource
GetModuleHandleW
DisableThreadLibraryCalls
LoadLibraryExW
GetProcAddress
SizeofResource
FindResourceExW
GetModuleFileNameW
FreeLibrary

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

CoDisconnectObject
CoImpersonateClient
CLSIDFromString
CoTaskMemFree
StringFromGUID2
CoCreateInstance
CoTaskMemRealloc
CoRevertToSelf
CoTaskMemAlloc

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

CharNextW

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

RaiseException
SetUnhandledExceptionFilter
UnhandledExceptionFilter
GetLastError
SetLastError

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

RegDeleteValueW
RegCreateKeyExW
RegSetValueExW
RegOpenKeyExW
RegEnumKeyExW
RegGetValueW
RegQueryInfoKeyW
RegCloseKey
RegQueryValueExW

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

MultiByteToWideChar

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

ReleaseSemaphore
DeleteCriticalSection
LeaveCriticalSection
InitializeCriticalSectionAndSpinCount
EnterCriticalSection
InitializeCriticalSection

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

CloseHandle

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

HeapFree
HeapAlloc
GetProcessHeap

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

EventUnregister
EventSetInformation
EventActivityIdControl
EventRegister
EventWriteTransfer

api-ms-win-core-synch-l1-2-1

CreateSemaphoreW

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

GetSystemTimeAsFileTime
GetTickCount

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

Sleep

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

OpenThreadToken
GetCurrentThreadId
GetCurrentProcessId
GetCurrentProcess
TerminateProcess

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

OutputDebugStringA

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

QueryPerformanceCounter

kernelbase

lstrcmpiW
WTSGetServiceSessionId

regapi

RegGetMachinePolicyNew

user32

UnregisterClassA
LoadStringW

wtsapi32

WTSFreeMemory
WTSEnumerateSessionsW

winsta

WinStationQueryInformationW

kernel32

FormatMessageW
GetModuleHandleExA
GetVersionExW
GetSystemTime
SystemTimeToFileTime
DuplicateHandle
OpenProcess
CreateTimerQueue
RegisterWaitForSingleObject
UnregisterWaitEx
TlsGetValue
TlsAlloc
TlsFree
GetComputerNameW
VerSetConditionMask
GetCurrentThread
RtlCaptureStackBackTrace
DeleteTimerQueueEx

api-ms-win-security-sddl-l1-1-0

ConvertStringSidToSidW

api-ms-win-security-base-l1-1-0

CreateWellKnownSid
DuplicateTokenEx
CheckTokenMembership
RevertToSelf
ImpersonateLoggedOnUser
DuplicateToken
AllocateAndInitializeSid
GetTokenInformation

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

TraceMessage

samcli

NetUserGetInfo

crypt32

CryptBinaryToStringW

ws2_32

WSACleanup
FreeAddrInfoW
GetAddrInfoW
WSAStartup

iphlpapi

GetAdaptersAddresses

api-ms-win-core-delayload-l1-1-1

ResolveDelayLoadedAPI

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

DelayLoadFailureHook

api-ms-win-security-lsalookup-l1-1-0

LookupAccountSidLocalW

api-ms-win-security-lsapolicy-l1-1-0

LsaFreeMemory

cryptsp

CryptAcquireContextW
CryptGenRandom
CryptReleaseContext

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

ApiSetQueryApiSetPresence

Exports

Exports

DllCanUnloadNow
DllGetClassObject
DllRegisterServer
DllUnregisterServer

Sections

.text
Size: 152KB - Virtual size: 152KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 1024B - Virtual size: 11KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.didat
Size: 512B - Virtual size: 16B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 44KB - Virtual size: 43KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 9KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

d3548201a1ff9fc5693e23edddf3da60

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

msvcrt

ntdll

oleaut32

rpcrt4

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

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

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

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

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

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

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

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

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

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

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

api-ms-win-core-synch-l1-2-1

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

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

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

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

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

kernelbase

regapi

user32

wtsapi32

winsta

kernel32

api-ms-win-security-sddl-l1-1-0

api-ms-win-security-base-l1-1-0

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

samcli

crypt32

ws2_32

iphlpapi

api-ms-win-core-delayload-l1-1-1

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

api-ms-win-security-lsalookup-l1-1-0

api-ms-win-security-lsapolicy-l1-1-0

cryptsp

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

Exports

Exports

Sections

.text Size: 152KB - Virtual size: 152KB

.data Size: 1024B - Virtual size: 11KB

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

.didat Size: 512B - Virtual size: 16B

.rsrc Size: 44KB - Virtual size: 43KB

.reloc Size: 9KB - Virtual size: 8KB

.text
Size: 152KB - Virtual size: 152KB

.data
Size: 1024B - Virtual size: 11KB

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

.didat
Size: 512B - Virtual size: 16B

.rsrc
Size: 44KB - Virtual size: 43KB

.reloc
Size: 9KB - Virtual size: 8KB