WhatIsThis[.]exe

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General

Target

WhatIsThis.exe
Size

71.8MB
MD5

4b9ae0e013684d27fac7284af04ad8dd
SHA1

87d5118a157f4f8b89b01024cb46f176cb1ba434
SHA256

e5e186dd0aca5bbb3d8f585893f7af50ddf030e8608c4831ca8ee57f4bf28aaa
SHA512

fe700374713e8210a30b507c513894e455dce41df8a0dce8066ad0c2d0ca126e49495525613fb6c800b37955c1e7b4f672dd9c6ee646d2e71b399ceebf2080a9
SSDEEP

786432:FtU7JpoRIePqST3b9RgSPqvPsqmL7ShHct6b/:Fq7rwfISSvPjRhHct6b/

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
WhatIsThis.exe

Files

WhatIsThis.exe
.exe windows:6 windows x64 arch:x64

d0fac2b7c8fb9ed2f981441c80f023ac

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

D:\a\_work\1\s\artifacts\obj\coreclr\windows.x64.Release\Corehost.Static\singlefilehost.pdb

Imports

kernel32

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

advapi32

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

ole32

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

oleaut32

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

user32

LoadStringW
MessageBoxW

shell32

ShellExecuteW

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

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

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

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

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

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

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

_atoi64
strtoull
_wtoi
_ltow_s
atol
wcstoul
strtoul
_wcstoui64
_itow_s

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

_set_new_mode
calloc
realloc
free
malloc

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

qsort

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

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

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

_time64
wcsftime
_gmtime64_s

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

getenv

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

_unlock_locales
setlocale
__pctype_func
___lc_locale_name_func
localeconv
_lock_locales
___mb_cur_max_func
_configthreadlocale
___lc_codepage_func

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

_wrename
_unlock_file
_lock_file
_wremove

Exports

Exports

CLRJitAttachState
DotNetRuntimeInfo
MetaDataGetDispenser
g_CLREngineMetrics
g_dacTable

Sections

.text
Size: 6.0MB - Virtual size: 5.9MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.CLR_UEF
Size: 512B - Virtual size: 221B

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: 29KB - Virtual size: 121KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 217KB - Virtual size: 217KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.didat
Size: 512B - Virtual size: 56B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

Section
Size: 512B - Virtual size: 8B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

_RDATA
Size: 77KB - Virtual size: 77KB

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: 30KB - Virtual size: 30KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

d0fac2b7c8fb9ed2f981441c80f023ac

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

advapi32

ole32

oleaut32

user32

shell32

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-environment-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: 5.9MB

.CLR_UEF Size: 512B - Virtual size: 221B

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

.data Size: 29KB - Virtual size: 121KB

.pdata Size: 217KB - Virtual size: 217KB

.didat Size: 512B - Virtual size: 56B

Section Size: 512B - Virtual size: 8B

_RDATA Size: 77KB - Virtual size: 77KB

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

.reloc Size: 30KB - Virtual size: 30KB

.text
Size: 6.0MB - Virtual size: 5.9MB

.CLR_UEF
Size: 512B - Virtual size: 221B

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

.data
Size: 29KB - Virtual size: 121KB

.pdata
Size: 217KB - Virtual size: 217KB

.didat
Size: 512B - Virtual size: 56B

Section
Size: 512B - Virtual size: 8B

_RDATA
Size: 77KB - Virtual size: 77KB

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

.reloc
Size: 30KB - Virtual size: 30KB