Scarab[.]exe | Triage

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General

Target

Scarab.exe
Size

88.7MB
MD5

d686d4e45653e4c407cdd05989dcb298
SHA1

c45dd624dc66df6dd38c2fd2c88b048242551881
SHA256

19a0cbff33c56822aa0f148d9895a259da6043cf6c415c55752b8a0cee264e95
SHA512

ed88cdaa089fd8b75eb74f1583488e78c4fe86014a4a0af980c90e97edaa929be3d590ac652b2ece2b5d6b7d73c49a8dcac1ac5d9228bee4da2d3f0c4d9d5c03
SSDEEP

786432:Ed0w8valRKJIPTwZofD53ludMnCCBRuMGyj6l:EdYilRKQTb4KCyuMGB

Score

9^/10

coreentity

Malware Config

Signatures

CoreEntity .NET Packer 1 IoCs
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
coreentity

Processes:

resource yara_rule

sample coreentity
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.

Processes:

resource

Scarab.exe

resource	yara_rule
sample	coreentity

resource
Scarab.exe

Files

Scarab.exe
.exe windows x64

afbe22b511a8b89ca86e08c478dd4819

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

Imports

kernel32

MultiByteToWideChar
GetTickCount
QueryPerformanceFrequency
QueryPerformanceCounter
GetModuleHandleW
FlushInstructionCache
RtlLookupFunctionEntry
RtlDeleteFunctionTable
InterlockedPushEntrySList
InterlockedFlushSList
InitializeSListHead
GetTickCount64
DuplicateHandle
QueueUserAPC
WaitForSingleObjectEx
SetThreadPriority
GetThreadPriority
ResumeThread
GetCurrentThreadId
Sleep
TlsAlloc
GetCurrentThread
CreateThread
WaitForMultipleObjectsEx
SignalObjectAndWait
RtlCaptureContext
SetThreadStackGuarantee
VirtualQuery
GetStdHandle
WideCharToMultiByte
GetConsoleOutputCP
MapViewOfFileEx
UnmapViewOfFile
GetStringTypeExW
SetEvent
GetCurrentProcessorNumber
GlobalMemoryStatusEx
CreateIoCompletionPort
PostQueuedCompletionStatus
SleepEx
GetQueuedCompletionStatus
InterlockedPopEntrySList
GetCurrentProcessorNumberEx
ExitProcess
CreateMemoryResourceNotification
GetProcessAffinityMask
SetThreadIdealProcessorEx
GetThreadIdealProcessorEx
GetLargePageMinimum
VirtualUnlock
GetLogicalProcessorInformation
SetThreadGroupAffinity
SetThreadAffinityMask
IsProcessInJob
QueryInformationJobObject
K32GetProcessMemoryInfo
VirtualAlloc
VirtualFree
VirtualProtect
SwitchToThread
CloseThreadpoolTimer
CreateThreadpoolTimer
SetThreadpoolTimer
GetFileSize
GetEnvironmentVariableW
SetEnvironmentVariableW
CreateEventW
ResetEvent
CreateSemaphoreExW
ReleaseSemaphore
CreateMutexW
ReleaseMutex
GetThreadContext
SuspendThread
SetThreadContext
GetEnabledXStateFeatures
InitializeContext
SetXStateFeaturesMask
RtlInstallFunctionTableCallback
GetSystemDefaultLCID
GetUserDefaultLCID
RtlUnwind
LoadLibraryExW
HeapAlloc
HeapFree
GetProcessHeap
HeapCreate
HeapDestroy
GetEnvironmentStringsW
FreeEnvironmentStringsW
FormatMessageW
OutputDebugStringA
GetACP
LCMapStringEx
LocalFree
VerSetConditionMask
VerifyVersionInfoW
FindClose
GetModuleFileNameW
FindNextFileW
QueryThreadCycleTime
VirtualAllocExNuma
GetNumaProcessorNodeEx
GetNumaHighestNodeNumber
GetLogicalProcessorInformationEx
GetThreadGroupAffinity
GetSystemTimes
GetSystemTimeAsFileTime
CreateFileMappingW
CreateProcessW
GetCPInfo
CreateFileW
GetFileAttributesExW
GetTempPathW
GetCurrentDirectoryW
FindFirstFileExW
GetFullPathNameW
OpenProcess
OpenEventW
ExitThread
HeapReAlloc
CreateNamedPipeA
WaitForMultipleObjects
DisconnectNamedPipe
CreateFileA
CancelIoEx
GetOverlappedResult
ConnectNamedPipe
FlushFileBuffers
MapViewOfFile
GetActiveProcessorGroupCount
GetSystemTime
SetConsoleCtrlHandler
GetLocaleInfoEx
GetUserDefaultLocaleName
RtlAddFunctionTable
CreateDirectoryW
RemoveDirectoryW
GetFileSizeEx
LoadLibraryA
IsWow64Process
InitializeCriticalSectionAndSpinCount
AddVectoredExceptionHandler
SetUnhandledExceptionFilter
UnhandledExceptionFilter
TerminateProcess
GetCurrentProcessId
RaiseFailFastException
FreeLibrary
RaiseException
WaitForSingleObject
TlsSetValue
TlsGetValue
GetSystemInfo
IsDebuggerPresent
LeaveCriticalSection
EnterCriticalSection
DeleteCriticalSection
InitializeCriticalSection
WriteFile
GetProcessTimes
GetCommandLineW
ReadFile
SetFilePointer
GetProcAddress
GetModuleHandleExW
SetErrorMode
CloseHandle
GetCurrentProcess
FlushProcessWriteBuffers
SetLastError
GetLastError
OutputDebugStringW
RtlRestoreContext
DebugBreak
DecodePointer
GetStringTypeW
RtlVirtualUnwind
IsProcessorFeaturePresent
RtlUnwindEx
EncodePointer
TlsFree
RtlPcToFileHeader
InitializeConditionVariable
WakeConditionVariable
WakeAllConditionVariable
SleepConditionVariableCS
SleepConditionVariableSRW
InitializeSRWLock
ReleaseSRWLockExclusive
AcquireSRWLockExclusive
InitializeCriticalSectionEx
TryEnterCriticalSection
GetExitCodeThread
CreateFileMappingA

advapi32

RegGetValueW
SetKernelObjectSecurity
GetSidSubAuthorityCount
GetSidSubAuthority
GetTokenInformation
DeregisterEventSource
ReportEventW
RegisterEventSourceW
RegQueryValueExW
RegOpenKeyExW
RegCloseKey
EventRegister
AdjustTokenPrivileges
OpenProcessToken
LookupPrivilegeValueW
SetThreadToken
RevertToSelf
OpenThreadToken
EventWriteTransfer
EventWrite

ole32

CoTaskMemAlloc
CoTaskMemFree
CoWaitForMultipleHandles
IIDFromString
CLSIDFromProgID
CoGetMarshalSizeMax
CoInitializeEx
CoMarshalInterface
CoUnmarshalInterface
CoGetObjectContext
CoGetContextToken
CoGetClassObject
CoCreateFreeThreadedMarshaler
CreateStreamOnHGlobal
StringFromGUID2
CoCreateGuid
CoUninitialize
CoRegisterInitializeSpy
CoRevokeInitializeSpy
CoReleaseMarshalData

oleaut32

SafeArrayAllocData
SafeArrayGetElemsize
SysStringByteLen
SysAllocStringByteLen
SafeArrayCreateVector
SafeArrayPutElement
LoadRegTypeLi
CreateErrorInfo
SafeArrayAllocDescriptorEx
VarCyFromDec
VariantInit
VariantClear
SafeArraySetRecordInfo
VariantChangeType
SafeArrayGetVartype
LoadTypeLibEx
QueryPathOfRegTypeLi
SafeArrayDestroy
SafeArrayGetLBound
SafeArrayGetDim
SysAllocStringLen
SysStringLen
SysAllocString
SetErrorInfo
GetErrorInfo
SysFreeString
VariantChangeTypeEx
GetRecordInfoFromTypeInfo

user32

MessageBoxW
LoadStringW

version

VerQueryValueW
GetFileVersionInfoExW
GetFileVersionInfoSizeExW

shell32

ShellExecuteW

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

RoUninitialize
RoInitialize

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

_stricmp
strcspn
wcsncmp
iswupper
towlower
isalpha
isdigit
wcstok_s
strnlen
iswascii
wcscpy_s
strcpy_s
strlen
strcmp
_strnicmp
isupper
strtok_s
isspace
_wcsdup
_strdup
tolower
strncpy_s
islower
strcat_s
_wcsicmp
wcsnlen
iswspace
__strncnt
towupper
wcscat_s
wcsncpy_s
wcsncat_s
strncat_s
strncmp
_wcsnicmp

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

fwrite
__stdio_common_vfprintf
__p__commode
_set_fmode
__stdio_common_vsnprintf_s
_putws
_flushall
_wfsopen
fseek
__stdio_common_vsprintf_s
fputws
__acrt_iob_func
fflush
ftell
_fileno
_dup
_setmode
fputwc
_get_stream_buffer_pointers
_fseeki64
fread
fsetpos
ungetc
fgetpos
fgetc
fputc
__stdio_common_vswprintf
fopen
fputs
setvbuf
__stdio_common_vfwprintf
__stdio_common_vsnwprintf_s
_wfopen
fclose
fgets
__stdio_common_vsscanf
__stdio_common_vswprintf_s

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

_beginthreadex
terminate
_errno
_invalid_parameter_noinfo_noreturn
abort
exit
_initialize_onexit_table
_register_onexit_function
_crt_atexit
_cexit
_seh_filter_exe
_set_app_type
_configure_wide_argv
_initialize_wide_environment
_get_initial_wide_environment
_initterm
_initterm_e
_exit
_controlfp_s
__p___argc
__p___wargv
_c_exit
_register_thread_local_exe_atexit_callback
_invalid_parameter_noinfo
_wcserror

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

_wtoi
atol
_ltow_s
strtoul
_itow_s
_wcstoui64
wcstoul
strtoull
_atoi64

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

realloc
calloc
malloc
_set_new_mode
free

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

qsort

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

atan2
atan
asinf
asin
acosf
acos
modff
powf
pow
exp
expf
floor
log2
atanh
acosh
ilogb
atanf
asinh
asinhf
ilogbf
atanhf
cbrtf
acoshf
log2f
ceil
floorf
ceilf
cos
modf
cosf
cosh
coshf
__setusermatherr
_fdopen
fma
fmaf
_copysignf
_isnanf
_copysign
atan2f
fmod
fmodf
_isnan
frexp
log
cbrt
log10
log10f
logf
sin
sinf
sinh
sinhf
sqrt
sqrtf
tan
tanf
tanh
_finite
tanhf

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

_time64
wcsftime
_gmtime64_s

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

localeconv
_lock_locales
_unlock_locales
setlocale
__pctype_func
___lc_locale_name_func
___lc_codepage_func
___mb_cur_max_func
_configthreadlocale

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

_unlock_file
_wremove
_wrename
_lock_file

Exports

Exports

CLRJitAttachState
DotNetRuntimeInfo
MetaDataGetDispenser
g_CLREngineMetrics

Sections

.text
Size: 6.0MB - Virtual size: 6.0MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.CLR_UEF
Size: 512B - Virtual size: 271B

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 1.5MB - Virtual size: 1.5MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 28KB - Virtual size: 120KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 214KB - Virtual size: 214KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

Section
Size: 512B - Virtual size: 8B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

_RDATA
Size: 77KB - Virtual size: 76KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 1.3MB - Virtual size: 1.3MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 28KB - Virtual size: 28KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

afbe22b511a8b89ca86e08c478dd4819

Headers

DLL Characteristics

File Characteristics

Imports

kernel32

advapi32

ole32

oleaut32

user32

version

shell32

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

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

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

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

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

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

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

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

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

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

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

Exports

Exports

Sections

.text Size: 6.0MB - Virtual size: 6.0MB

.CLR_UEF Size: 512B - Virtual size: 271B

.rdata Size: 1.5MB - Virtual size: 1.5MB

.data Size: 28KB - Virtual size: 120KB

.pdata Size: 214KB - Virtual size: 214KB

Section Size: 512B - Virtual size: 8B

_RDATA Size: 77KB - Virtual size: 76KB

.rsrc Size: 1.3MB - Virtual size: 1.3MB

.reloc Size: 28KB - Virtual size: 28KB

.text
Size: 6.0MB - Virtual size: 6.0MB

.CLR_UEF
Size: 512B - Virtual size: 271B

.rdata
Size: 1.5MB - Virtual size: 1.5MB

.data
Size: 28KB - Virtual size: 120KB

.pdata
Size: 214KB - Virtual size: 214KB

Section
Size: 512B - Virtual size: 8B

_RDATA
Size: 77KB - Virtual size: 76KB

.rsrc
Size: 1.3MB - Virtual size: 1.3MB

.reloc
Size: 28KB - Virtual size: 28KB