userinit.pdb
Static task
static1
Behavioral task
behavioral1
Sample
userinit.exe
Resource
win10v2004-20240802-en
General
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Target
userinit.exe
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Size
128KB
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MD5
8235639808a6b6a8c70bab62d52097e0
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SHA1
c9fc0709471ba2623e0e1be2c2d108541af03935
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SHA256
5eb2da14c54c642ffcef0e53ac934c5f750d9fff3c529cbe55248586a2392d66
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SHA512
b4f306c9e4fa560a725e445603489ac386ea4050f9981cf8235805a382bacd7e421ad4f7ae8777f2560d78dba5bb71d61e950b39e02255c67fe882763f938db8
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SSDEEP
1536:lC292fFR6vDLXr/+/GxnxVdlhrT4YTqX4MIUV/FrpZPxZXnfr8YB:w2YR6fKarOYTmh/lZPLfR
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource userinit.exe
Files
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userinit.exe.exe windows:10 windows x64 arch:x64
dafdfeea533e98f48223b56b19d509d5
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_GUARD_CF
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
PDB Paths
Imports
ntdll
RtlVirtualUnwind
RtlCaptureContext
RtlLookupFunctionEntry
NtQueryInformationProcess
RtlGetActiveConsoleId
api-ms-win-core-file-l1-1-0
CompareFileTime
GetFileAttributesExW
api-ms-win-core-processenvironment-l1-1-0
SetEnvironmentVariableW
ExpandEnvironmentStringsW
SearchPathW
GetEnvironmentVariableW
api-ms-win-core-registry-l1-1-0
RegQueryInfoKeyW
RegOpenKeyExW
RegGetValueW
RegQueryValueExW
RegCloseKey
RegEnumValueW
RegCreateKeyExW
RegOpenCurrentUser
api-ms-win-core-errorhandling-l1-1-0
UnhandledExceptionFilter
SetUnhandledExceptionFilter
SetLastError
GetLastError
api-ms-win-core-processthreads-l1-1-0
GetCurrentThread
TerminateProcess
GetCurrentProcess
GetCurrentThreadId
CreateThread
CreateProcessW
ProcessIdToSessionId
GetStartupInfoW
SetThreadPriority
GetCurrentProcessId
api-ms-win-eventing-classicprovider-l1-1-0
RegisterTraceGuidsW
GetTraceEnableLevel
UnregisterTraceGuids
GetTraceEnableFlags
GetTraceLoggerHandle
TraceMessage
api-ms-win-core-synch-l1-1-0
OpenSemaphoreW
WaitForSingleObjectEx
AcquireSRWLockExclusive
CreateMutexExW
AcquireSRWLockShared
ReleaseMutex
InitializeCriticalSectionEx
ReleaseSemaphore
EnterCriticalSection
CreateEventExW
ReleaseSRWLockShared
ReleaseSRWLockExclusive
CreateSemaphoreExW
CreateEventW
OpenEventW
DeleteCriticalSection
WaitForSingleObject
InitializeCriticalSectionAndSpinCount
ResetEvent
SetEvent
LeaveCriticalSection
api-ms-win-core-heap-l2-1-0
LocalFree
LocalAlloc
api-ms-win-core-string-l2-1-0
CharNextW
api-ms-win-core-sysinfo-l1-1-0
GetSystemTimeAsFileTime
GetSystemDirectoryW
logoncli
DsGetDcNameW
api-ms-win-core-synch-l1-2-0
InitOnceComplete
InitOnceBeginInitialize
Sleep
api-ms-win-core-handle-l1-1-0
CloseHandle
api-ms-win-core-heap-l1-1-0
HeapAlloc
HeapSetInformation
HeapFree
GetProcessHeap
api-ms-win-core-libraryloader-l1-2-0
FreeLibrary
GetProcAddress
LoadLibraryExW
LoadStringW
FindStringOrdinal
GetModuleHandleExW
GetModuleFileNameW
GetModuleHandleW
GetModuleFileNameA
api-ms-win-core-com-l1-1-0
CoTaskMemFree
CoTaskMemAlloc
api-ms-win-eventing-provider-l1-1-0
EventSetInformation
EventUnregister
EventWriteTransfer
EventRegister
api-ms-win-core-psapi-l1-1-0
K32GetModuleFileNameExW
api-ms-win-core-threadpool-l1-2-0
WaitForThreadpoolTimerCallbacks
CloseThreadpoolTimer
SetThreadpoolTimer
CreateThreadpoolTimer
api-ms-win-core-processthreads-l1-1-1
IsProcessorFeaturePresent
OpenProcess
api-ms-win-core-localization-l1-2-0
FormatMessageW
api-ms-win-core-debug-l1-1-0
IsDebuggerPresent
OutputDebugStringW
DebugBreak
api-ms-win-core-registry-l1-1-1
RegSetKeyValueW
user32
GetShellWindow
GetWindowThreadProcessId
api-ms-win-crt-runtime-l1-1-0
_c_exit
_initterm_e
_register_thread_local_exe_atexit_callback
_initterm
api-ms-win-crt-private-l1-1-0
__CxxFrameHandler4
__std_terminate
wcsrchr
_o___p__commode
_o___std_exception_copy
_o___std_exception_destroy
_o___stdio_common_vsnprintf_s
_o___stdio_common_vswprintf
_o__cexit
_o__configthreadlocale
_o__configure_narrow_argv
_o__crt_atexit
_o__errno
_o__exit
_o__get_narrow_winmain_command_line
_o__initialize_narrow_environment
_o__initialize_onexit_table
_o__invalid_parameter_noinfo
_CxxThrowException
memmove
_o__purecall
_o__register_onexit_function
_o__seh_filter_exe
_o__set_app_type
_o__set_fmode
_o__set_new_mode
_o__wcsicmp
_o__wtoi
_o_exit
_o_free
_o_terminate
__C_specific_handler
__current_exception
__current_exception_context
memcmp
memcpy
api-ms-win-crt-string-l1-1-0
memset
api-ms-win-core-profile-l1-1-0
QueryPerformanceCounter
api-ms-win-core-interlocked-l1-1-0
InitializeSListHead
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
Sections
.text Size: 76KB - Virtual size: 73KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 28KB - Virtual size: 24KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 4KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 4KB - Virtual size: 3KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.didat Size: 4KB - Virtual size: 200B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.rsrc Size: 4KB - Virtual size: 1KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 4KB - Virtual size: 232B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ