AuthBroker[.]dll

Sharing

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General

Target

AuthBroker.dll
Size

164KB
MD5

38183256cfb015a9d4503449e8e7ca20
SHA1

f0a3652796d715c823ce41e5dd3c068816f705d3
SHA256

2f33e7d4f0d71c4cba4a608d16ef9240baca655d2715ab270af36b74d4b5d283
SHA512

ee360629b7816bb2ee08c9d4fd0ae85e601a1e3bd0e0e260e400b449a96933179769fb27d742414113bfbdbf165583bdc1a4ddc30dc15741a9f9350143f145af
SSDEEP

3072:7mljzac6Ump8ygZpqcTrySIBPLrGFla+qmaOvyySsSKwYSrkmcm6jEsDx:7ImUmCfZgSgDrGFQ29vPSV6p

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
AuthBroker.dll

Files

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

ed2eff265d804d2f1bc27e162a4717f1

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

AuthBroker.pdb

Imports

msvcrt

_lock
free
_unlock
_XcptFilter
malloc
__CxxFrameHandler3
_onexit
_except_handler4_common
memcmp
memcpy
_vsnwprintf
_amsg_exit
_initterm
memmove_s
_purecall
memcpy_s
__dllonexit
_callnewh
memset

rpcrt4

CStdStubBuffer_DebugServerRelease
NdrOleAllocate
CStdStubBuffer_QueryInterface
CStdStubBuffer_Disconnect
IUnknown_AddRef_Proxy
IUnknown_QueryInterface_Proxy
CStdStubBuffer_CountRefs
CStdStubBuffer_Connect
NdrStubForwardingFunction
IUnknown_Release_Proxy
NdrCStdStubBuffer2_Release
NdrDllGetClassObject
NdrDllCanUnloadNow
NdrCStdStubBuffer_Release
CStdStubBuffer_AddRef
CStdStubBuffer_Invoke
CStdStubBuffer_IsIIDSupported
I_RpcBindingInqLocalClientPID
CStdStubBuffer_DebugServerQueryInterface
NdrStubCall2
NdrOleFree

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

GetProcAddress
LoadStringW
GetModuleHandleExW
GetModuleFileNameA
GetModuleHandleW

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

Sleep
InitOnceExecuteOnce
InitOnceComplete
InitOnceBeginInitialize

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

ReleaseSemaphore
EnterCriticalSection
AcquireSRWLockExclusive
WaitForSingleObject
CreateSemaphoreExW
CreateEventExW
CreateMutexW
CreateMutexExW
AcquireSRWLockShared
LeaveCriticalSection
ReleaseSRWLockExclusive
WaitForSingleObjectEx
ReleaseSRWLockShared
WaitForMultipleObjectsEx
CreateEventW
SetEvent
InitializeCriticalSectionEx
DeleteCriticalSection
OpenSemaphoreW
ReleaseMutex

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

HeapFree
GetProcessHeap
HeapAlloc

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

UnhandledExceptionFilter
SetUnhandledExceptionFilter
RaiseException
SetLastError
GetLastError

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

WindowsCompareStringOrdinal
HSTRING_UserMarshal
WindowsGetStringRawBuffer
HSTRING_UserFree
WindowsCreateStringReference
WindowsCreateString
WindowsStringHasEmbeddedNull
WindowsDeleteString
WindowsIsStringEmpty
HSTRING_UserUnmarshal
WindowsGetStringLen
WindowsDuplicateString
HSTRING_UserSize

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

EventRegister
EventSetInformation
EventUnregister
EventWriteTransfer
EventActivityIdControl

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

DecodePointer
EncodePointer

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

GetTraceEnableLevel
TraceMessage
GetTraceEnableFlags
GetTraceLoggerHandle
UnregisterTraceGuids
RegisterTraceGuidsW

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

CreateThreadpoolWork
SubmitThreadpoolWork
CreateThreadpoolTimer
FreeLibraryWhenCallbackReturns
CloseThreadpoolTimer
CloseThreadpoolWork
SetThreadpoolTimer
WaitForThreadpoolTimerCallbacks

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

GetExitCodeProcess
SetThreadToken
OpenProcessToken
DeleteProcThreadAttributeList
CreateProcessW
UpdateProcThreadAttribute
InitializeProcThreadAttributeList
TlsAlloc
TlsGetValue
CreateThread
ResumeThread
GetProcessId
GetCurrentThread
OpenThreadToken
GetCurrentThreadId
GetCurrentProcessId
TlsFree
GetCurrentProcess
TerminateProcess
TlsSetValue
GetProcessIdOfThread
OpenThread

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

RoOriginateErrorW
GetRestrictedErrorInfo
RoOriginateError
RoTransformError
SetRestrictedErrorInfo

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

FormatMessageW

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

DebugBreak
IsDebuggerPresent
OutputDebugStringW

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

DuplicateHandle
CloseHandle

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

CStdStubBuffer2_Disconnect
CStdStubBuffer2_CountRefs
ObjectStublessClient21
CStdStubBuffer2_QueryInterface
ObjectStublessClient4
NdrProxyForwardingFunction4
ObjectStublessClient20
ObjectStublessClient17
ObjectStublessClient11
ObjectStublessClient16
NdrProxyForwardingFunction5
ObjectStublessClient14
NdrProxyForwardingFunction3
ObjectStublessClient10
ObjectStublessClient3
ObjectStublessClient18
ObjectStublessClient9
ObjectStublessClient8
ObjectStublessClient6
CStdStubBuffer2_Connect
ObjectStublessClient12
ObjectStublessClient19
ObjectStublessClient5
ObjectStublessClient13
ObjectStublessClient7
ObjectStublessClient15

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

QueryPerformanceCounter

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

GetSystemTimeAsFileTime
GetTickCount
GetSystemTime

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

RegQueryValueExW
RegOpenKeyExW
RegEnumKeyExW
RegQueryInfoKeyW
RegSetValueExW
RegCloseKey
RegCreateKeyExW
RegGetValueW
RegDeleteValueW

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

ImpersonateLoggedOnUser
CopySid
GetSidSubAuthorityCount
GetLengthSid
AllocateAndInitializeSid
FreeSid
GetTokenInformation

api-ms-win-security-base-l1-2-0

CheckTokenCapability

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

LocalReAlloc
LocalFree
LocalAlloc

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

CreateFileW

authz

AuthzInitializeResourceManager
AuthzAccessCheck
AuthzFreeResourceManager
AuthzFreeContext
AuthzInitializeContextFromSid

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

OpenProcess

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

GetAppContainerNamedObjectPath

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

WaitForMultipleObjects

api-ms-win-core-wow64-l1-1-0

Wow64DisableWow64FsRedirection
IsWow64Process
Wow64RevertWow64FsRedirection

wkscli

NetGetJoinInformation

netutils

NetApiBufferFree

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

RoInitialize
RoUninitialize
RoGetActivationFactory
RoActivateInstance

winhttp

WinHttpCrackUrl
WinHttpCreateUrl

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

IsErrorPropagationEnabled
RoGetMatchingRestrictedErrorInfo
RoReportFailedDelegate

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

ParseURLW

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

GetSecurityInfo

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

HWND_UserFree
HWND_UserSize
HWND_UserUnmarshal
HWND_UserMarshal

combase

ord140

ntdll

RtlInitializeCriticalSection
RtlDeleteCriticalSection
RtlEnterCriticalSection
RtlLeaveCriticalSection
WinSqmAddToStream
wcstoul
RtlIsStateSeparationEnabled
_wcsicmp
RtlAllocateAndInitializeSidEx
RtlDeriveCapabilitySidsFromName
RtlInitUnicodeString
RtlEqualSid
_wcsnicmp

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

ResolveDelayLoadedAPI

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

DelayLoadFailureHook

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

ApiSetQueryApiSetPresence

Exports

Exports

AuthBrokerClearThreadClientContext
AuthBrokerCreateClientContext
AuthBrokerFreeClientContext
AuthBrokerSetThreadClientContext
DllCanUnloadNow
DllGetActivationFactory
DllGetClassObject
DllInstall
DllRegisterServer
FindCallingThreadImmersiveWindow
PurgeAuthHostSsoCache

Sections

.text
Size: 142KB - Virtual size: 141KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 512B - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.idata
Size: 10KB - Virtual size: 9KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.didat
Size: 512B - Virtual size: 340B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

ed2eff265d804d2f1bc27e162a4717f1

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

msvcrt

rpcrt4

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

api-ms-win-security-base-l1-2-0

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

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

authz

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

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

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

api-ms-win-core-wow64-l1-1-0

wkscli

netutils

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

winhttp

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

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

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

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

combase

ntdll

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

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

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

Exports

Exports

Sections

.text Size: 142KB - Virtual size: 141KB

.data Size: 512B - Virtual size: 2KB

.idata Size: 10KB - Virtual size: 9KB

.didat Size: 512B - Virtual size: 340B

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

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

.text
Size: 142KB - Virtual size: 141KB

.data
Size: 512B - Virtual size: 2KB

.idata
Size: 10KB - Virtual size: 9KB

.didat
Size: 512B - Virtual size: 340B

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

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