credui[.]dll | Triage

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General

Target

credui.dll
Size

58KB
MD5

6bec1971f396fc41528d4802bb01ee7f
SHA1

3bd63890a159cd6f895d2a539696a2967f802531
SHA256

9e11e38aca1d9154684733f6904a3274faea5119c982f5d36164f3656da4554f
SHA512

b664a2b013d6b19dc14cc7c4f567816f1e3a13fd03af7ead7389ab2fb63a07bf8d55ca146239f60bc1734538530db4fbd83961d1dce95bae080592803f8ef42f
SSDEEP

768:wIXKfbmevzqHRjDrbr/YPCg+9Q7KmqU0x45iFV+T8Jbhoq9UDZxU7:VXKDme7wjnvY6SqpxhFVE8Jbhoq+DZS

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
credui.dll

Files

credui.dll
.dll windows:10 windows x86 arch:x86

4900dd56af9b4dc86ef8224532af8758

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

credui.pdb

Imports

msvcrt

memcpy_s
wcsrchr
__dllonexit
_unlock
_lock
_wcsicmp
_snwprintf_s
wcschr
_except_handler4_common
_initterm
malloc
wcscpy_s
_purecall
_vsnwprintf
free
memcmp
memcpy
_amsg_exit
_onexit
_XcptFilter
memmove_s
memset

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

GetModuleHandleW
GetModuleHandleExW
GetModuleFileNameA
GetProcAddress
LoadLibraryExW
FreeLibrary
DisableThreadLibraryCalls

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

EventWriteTransfer
EventRegister
EventUnregister
EventSetInformation

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

Sleep

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

QueryPerformanceCounter

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

TerminateProcess
GetCurrentProcess
GetCurrentProcessId
GetCurrentThreadId

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

GetSystemDirectoryW
GetSystemTimeAsFileTime
GetTickCount

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

GetLastError
UnhandledExceptionFilter
SetUnhandledExceptionFilter
SetLastError

ntdll

NtOpenThreadToken
NtQueryInformationToken
RtlInitString
RtlCreateUnicodeStringFromAsciiz
RtlFreeAnsiString
RtlUnicodeStringToAnsiString
RtlInitUnicodeString
RtlNtStatusToDosErrorNoTeb
RtlFreeUnicodeString
RtlCreateUnicodeString
RtlGetLastNtStatus
RtlNtStatusToDosError
NtClose

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

LocalFree
LocalAlloc

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

HeapAlloc
GetProcessHeap
HeapFree

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

FormatMessageW

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

IsDebuggerPresent
OutputDebugStringW
DebugBreak

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

CreateSemaphoreExW
InitializeCriticalSectionEx
OpenSemaphoreW
WaitForSingleObject
EnterCriticalSection
DeleteCriticalSection
CreateMutexExW
AcquireSRWLockExclusive
ReleaseSRWLockExclusive
AcquireSRWLockShared
ReleaseSRWLockShared
LeaveCriticalSection
WaitForSingleObjectEx
ReleaseSemaphore
ReleaseMutex

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

CloseHandle

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

CreateThreadpoolTimer
SetThreadpoolTimer
CloseThreadpoolTimer
WaitForThreadpoolTimerCallbacks

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

MultiByteToWideChar
WideCharToMultiByte

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

RegCloseKey
RegQueryValueExW
RegOpenKeyExW

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

CredPackAuthenticationBufferA
CredPackAuthenticationBufferW
CredUICmdLinePromptForCredentialsA
CredUICmdLinePromptForCredentialsW
CredUIConfirmCredentialsA
CredUIConfirmCredentialsW
CredUIInitControls
CredUIParseUserNameA
CredUIParseUserNameW
CredUIPromptForCredentialsA
CredUIPromptForCredentialsW
CredUIPromptForWindowsCredentialsA
CredUIPromptForWindowsCredentialsW
CredUIPromptForWindowsCredentialsWorker
CredUIReadSSOCredA
CredUIReadSSOCredW
CredUIStoreSSOCredA
CredUIStoreSSOCredW
CredUnPackAuthenticationBufferA
CredUnPackAuthenticationBufferW
SspiGetCredUIContext
SspiIsPromptingNeeded
SspiPromptForCredentialsA
SspiPromptForCredentialsW
SspiUnmarshalCredUIContext
SspiUpdateCredentials

Sections

.text
Size: 48KB - Virtual size: 47KB

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: 4KB - Virtual size: 3KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.didat
Size: 512B - Virtual size: 264B

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: 2KB - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

4900dd56af9b4dc86ef8224532af8758

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

msvcrt

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

api-ms-win-eventing-provider-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

ntdll

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

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

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

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

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

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

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

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

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

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: 48KB - Virtual size: 47KB

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

.idata Size: 4KB - Virtual size: 3KB

.didat Size: 512B - Virtual size: 264B

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

.reloc Size: 2KB - Virtual size: 2KB

.text
Size: 48KB - Virtual size: 47KB

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

.idata
Size: 4KB - Virtual size: 3KB

.didat
Size: 512B - Virtual size: 264B

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

.reloc
Size: 2KB - Virtual size: 2KB