AuthBroker[.]dll

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General

Target

AuthBroker.dll
Size

158KB
MD5

7bc0c283b1387ee2acfe9149a7d4d39b
SHA1

0b5bb313d96ef1a4318adaef315717ba8679760f
SHA256

e0ab7fa50453e9034aff064ee5d5099806120a017948e47bdae502f766ff51ca
SHA512

0edf9f86ae2fa10516ecf293057834e18f577b58f0e4d53970aea24a09231434078bbc27be5193907cae71be25c3ceefb3f871219665ac3dbe30cb9ddba536dd
SSDEEP

3072:WLBjKa2Exeeec2Or/ly2DuzA/LsoWwXa82eZAro3iyjC3BOYSrQsRmQVa/Di:sVeeeWr/ly2Duc/LsoWwXa82eZ93i5BC

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

da5a79da3add2775a2bf25b9753c5bff

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

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

rpcrt4

CStdStubBuffer_DebugServerRelease
CStdStubBuffer_Disconnect
NdrOleAllocate
CStdStubBuffer_QueryInterface
IUnknown_QueryInterface_Proxy
IUnknown_AddRef_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

GetModuleHandleExW
GetProcAddress
GetModuleHandleW
GetModuleFileNameA
LoadStringW

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

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

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

HeapAlloc
GetProcessHeap
HeapFree

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

UnhandledExceptionFilter
RaiseException
SetUnhandledExceptionFilter
SetLastError
GetLastError

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

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

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

EventUnregister
EventWriteTransfer
EventActivityIdControl
EventRegister
EventSetInformation

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

EncodePointer
DecodePointer

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

GetTraceEnableFlags
TraceMessage
GetTraceLoggerHandle
UnregisterTraceGuids
RegisterTraceGuidsW
GetTraceEnableLevel

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

SetThreadpoolTimer
FreeLibraryWhenCallbackReturns
CreateThreadpoolWork
SubmitThreadpoolWork
WaitForThreadpoolTimerCallbacks
CloseThreadpoolWork
CreateThreadpoolTimer
CloseThreadpoolTimer

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

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

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

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

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

InitOnceExecuteOnce
InitOnceBeginInitialize
SleepConditionVariableSRW
InitOnceComplete
Sleep
WakeAllConditionVariable

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

RegQueryInfoKeyW
RegOpenKeyExW
RegGetValueW
RegCreateKeyExW
RegCloseKey
RegQueryValueExW
RegDeleteValueW
RegSetValueExW
RegEnumKeyExW

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

GetTokenInformation
FreeSid
AllocateAndInitializeSid
GetLengthSid
CopySid
ImpersonateLoggedOnUser
GetSidSubAuthorityCount

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

Wow64RevertWow64FsRedirection
Wow64DisableWow64FsRedirection
IsWow64Process

wkscli

NetGetJoinInformation

netutils

NetApiBufferFree

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

RoInitialize
RoGetActivationFactory
RoActivateInstance
RoUninitialize

winhttp

WinHttpCrackUrl
WinHttpCreateUrl

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

RoGetMatchingRestrictedErrorInfo
IsErrorPropagationEnabled
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_UserUnmarshal
HWND_UserSize
HWND_UserMarshal

combase

ord140

ntdll

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

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: 136KB - Virtual size: 135KB

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: 9KB - Virtual size: 8KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

da5a79da3add2775a2bf25b9753c5bff

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

msvcrt

rpcrt4

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

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: 136KB - Virtual size: 135KB

.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: 9KB - Virtual size: 8KB

.text
Size: 136KB - Virtual size: 135KB

.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: 9KB - Virtual size: 8KB