CoreShellAPI[.]dll

Sharing

Copy URL Twitter E-mail

General

Target

CoreShellAPI.dll
Size

321KB
MD5

17bc7fdbb84dd8cbc00a0cf4c0aa412f
SHA1

71a8ccca895bb5c6b7c8a8f7f9f3376143435ddb
SHA256

ecf31a7735019dd94d6e1e5aec5246e81813f7a8cc73ee34df1eb02c50cd90f7
SHA512

b3631b2b9473299b2f9e42251e2ecb2d6178dd1f336502bc8384747a970dc038431491df9d664d0600184bccd6ad36d3379c826bdd69a9cbbc72f2da2c3d620b
SSDEEP

6144:J6YjrHYwwHfQyKYXhNeaiksQr2yQpuTZggLGs7s:JH4wwHYyhRNefksQr2yQU1s

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
CoreShellAPI.dll

Files

CoreShellAPI.dll
.dll windows:10 windows x86 arch:x86

d464bfee25232b0a64a534addc222934

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

CoreShellAPI.pdb

Imports

api-ms-win-crt-runtime-l1-1-0

_initterm
_initterm_e

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

memset

api-ms-win-crt-private-l1-1-0

_o__configure_narrow_argv
_o__crt_atexit
_o__errno
_o__execute_onexit_table
_o__initialize_narrow_environment
_o__initialize_onexit_table
_o__invalid_parameter_noinfo
_o__invalid_parameter_noinfo_noreturn
_o__purecall
_o__register_onexit_function
_o__seh_filter_dll
memmove
_o_free
_o_malloc
_o_realloc
_o_terminate
_except_handler4_common
_CxxThrowException
_o__cexit
_o__callnewh
_o___stdio_common_vswprintf
_o___stdio_common_vsnprintf_s
__std_terminate
__CxxFrameHandler3
_o___std_type_info_destroy_list
_o___std_exception_destroy
_o___std_exception_copy
memcmp
memcpy

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

GetProcAddress
FreeLibrary
GetModuleHandleExW
GetModuleHandleW
LoadLibraryExA
GetModuleFileNameA

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

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

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

HeapAlloc
HeapFree
GetProcessHeap

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

SetUnhandledExceptionFilter
RaiseException
SetLastError
GetLastError
UnhandledExceptionFilter

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

CreateThread
TerminateProcess
GetCurrentThreadId
GetCurrentProcess
OpenProcessToken
GetCurrentProcessId

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

FormatMessageW

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

IsDebuggerPresent
OutputDebugStringW
DebugBreak

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

CloseHandle

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

WindowsCompareStringOrdinal
WindowsDuplicateString
WindowsCreateStringReference
WindowsDeleteString
WindowsGetStringRawBuffer
WindowsStringHasEmbeddedNull
WindowsIsStringEmpty
WindowsCreateString

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

CoCreateInstance
CoTaskMemAlloc
CoTaskMemFree
CoGetApartmentType
CoDecrementMTAUsage
CoIncrementMTAUsage
CoCreateFreeThreadedMarshaler

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

RoOriginateError
RoOriginateErrorW
RoTransformError
SetRestrictedErrorInfo

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

EncodePointer
DecodePointer

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

IsProcessorFeaturePresent

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

QueryPerformanceCounter

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

GetSystemTimeAsFileTime
GetSystemInfo

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

InitializeSListHead

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

RoGetMatchingRestrictedErrorInfo
IsErrorPropagationEnabled
RoReportFailedDelegate

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

RoGetAgileReference

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

EventSetInformation
EventUnregister
EventWriteTransfer
EventActivityIdControl
EventRegister

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

CloseThreadpoolTimer
CreateThreadpoolTimer
WaitForThreadpoolTimerCallbacks
SetThreadpoolTimer
CreateThreadpoolWork
SubmitThreadpoolWork
WaitForThreadpoolWorkCallbacks
CloseThreadpoolWork

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

RegQueryInfoKeyW
RegGetValueW
RegEnumKeyExW
RegCloseKey
RegSetValueExW
RegCreateKeyExW
RegOpenKeyExW

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

CompareStringOrdinal

ntdll

NtPowerInformation
RtlUnsubscribeWnfNotificationWaitForCompletion
NtQueryWnfStateData
RtlSubscribeWnfStateChangeNotification
RtlGetDeviceFamilyInfoEnum

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

InitOnceBeginInitialize
InitOnceComplete
InitOnceExecuteOnce
WaitOnAddress
WakeByAddressSingle

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

RoActivateInstance
RoGetActivationFactory

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

RoCreateNonAgilePropertySet

api-ms-win-security-lsalookup-l2-1-0

LookupPrivilegeValueW

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

AdjustTokenPrivileges

api-ms-win-power-setting-l1-1-0

PowerSettingRegisterNotification

api-ms-win-rtcore-ntuser-powermanagement-l1-1-0

UnregisterPowerSettingNotification

api-ms-win-shcore-taskpool-l1-1-0

SHTaskPoolQueueTask

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

RegDeleteKeyW

api-ms-win-rtcore-ntuser-window-l1-1-0

PostMessageW
CreateWindowExW
RegisterClassExW
DefWindowProcW
DestroyWindow

msvcp_win

?__ExceptionPtrToBool@@YA_NPBX@Z
?_Execute_once@std@@YAHAAUonce_flag@1@P6GHPAX1PAPAX@Z1@Z
?__ExceptionPtrCurrentException@@YAXPAX@Z
?__ExceptionPtrCreate@@YAXPAX@Z
?_XGetLastError@std@@YAXXZ
_Cnd_broadcast
?_Throw_C_error@std@@YAXH@Z
_Mtx_unlock
_Mtx_lock
?GetCurrentThreadId@platform@details@Concurrency@@YAJXZ
_Mtx_destroy_in_situ
??0task_continuation_context@Concurrency@@AAE@XZ
_Mtx_init_in_situ
?__ExceptionPtrRethrow@@YAXPBX@Z
?_ReportUnobservedException@details@Concurrency@@YAXXZ
?_Release_chore@details@Concurrency@@YAXPAU_Threadpool_chore@12@@Z
?_Schedule_chore@details@Concurrency@@YAHPAU_Threadpool_chore@12@@Z
?_CallInContext@_ContextCallback@details@Concurrency@@QBEXV?$function@$$A6AXXZ@std@@_N@Z
?_Capture@_ContextCallback@details@Concurrency@@AAEXXZ
?_Xbad_function_call@std@@YAXXZ
?_LogScheduleTask@_TaskEventLogger@details@Concurrency@@QAEX_N@Z
?_LogCancelTask@_TaskEventLogger@details@Concurrency@@QAEXXZ
_Cnd_wait
?_LogTaskExecutionCompleted@_TaskEventLogger@details@Concurrency@@QAEXXZ
?_LogTaskCompleted@_TaskEventLogger@details@Concurrency@@QAEXXZ
?_LogWorkItemStarted@_TaskEventLogger@details@Concurrency@@QAEXXZ
?_LogWorkItemCompleted@_TaskEventLogger@details@Concurrency@@QAEXXZ
?_Reset@_ContextCallback@details@Concurrency@@AAEXXZ
?__ExceptionPtrCopy@@YAXPAXPBX@Z
_Cnd_init_in_situ
?__ExceptionPtrDestroy@@YAXPAX@Z
?_Xlength_error@std@@YAXPBD@Z
_Cnd_destroy_in_situ

combase

ord157
ord90

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

VirtualProtect
VirtualQuery

Exports

Exports

DllCanUnloadNow
DllGetActivationFactory
DllGetClassObject

Sections

.text
Size: 287KB - Virtual size: 286KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.data
Size: 1024B - Virtual size: 2KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

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

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.didat
Size: 512B - Virtual size: 8B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.rsrc
Size: 1024B - Virtual size: 1016B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 22KB - Virtual size: 21KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

d464bfee25232b0a64a534addc222934

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

api-ms-win-crt-runtime-l1-1-0

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

api-ms-win-crt-private-l1-1-0

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-processthreads-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-winrt-string-l1-1-0

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

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

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

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

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

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

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

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

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

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

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

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

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

ntdll

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

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

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

api-ms-win-security-lsalookup-l2-1-0

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

api-ms-win-power-setting-l1-1-0

api-ms-win-rtcore-ntuser-powermanagement-l1-1-0

api-ms-win-shcore-taskpool-l1-1-0

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

api-ms-win-rtcore-ntuser-window-l1-1-0

msvcp_win

combase

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

Exports

Exports

Sections

.text Size: 287KB - Virtual size: 286KB

.data Size: 1024B - Virtual size: 2KB

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

.didat Size: 512B - Virtual size: 8B

.rsrc Size: 1024B - Virtual size: 1016B

.reloc Size: 22KB - Virtual size: 21KB

.text
Size: 287KB - Virtual size: 286KB

.data
Size: 1024B - Virtual size: 2KB

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

.didat
Size: 512B - Virtual size: 8B

.rsrc
Size: 1024B - Virtual size: 1016B

.reloc
Size: 22KB - Virtual size: 21KB