BatCloak[.]exe

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General

Target

BatCloak.exe
Size

55.8MB
MD5

1728518bdd6eacc50f55d2ccadd86fcc
SHA1

85dbd4a5f717216f825c98948866ab6af10b1cf6
SHA256

4c9e033a9e43b47f336c07d8c82abd6a9f102057019b9783f1765b4dbb7b0ac7
SHA512

b4b6f5f8ffd9ca5ba6a24c15066a104931c8083b3b10dec1b759f878d155e715156d26924a289968a5ee296f92b5e83420c1bfeda9bd80c3e1e0ed20db4a6d7d
SSDEEP

786432:hyYrHpU/ncgNzHj38QukYDHSs0fIBtPhyEmPr:UYrM4V0XEmD

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
BatCloak.exe

Files

BatCloak.exe
.exe windows:6 windows x86 arch:x86

5faa4e2549a90b4b068a8d326d23ab61

Headers

DLL Characteristics

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_32BIT_MACHINE

PDB Paths

D:\a\_work\1\s\artifacts\obj\coreclr\windows.x86.Release\Corehost.Static\singlefilehost.pdb

Imports

kernel32

MultiByteToWideChar
GetTickCount
QueryPerformanceFrequency
QueryPerformanceCounter
GetModuleHandleW
FlushInstructionCache
InterlockedPushEntrySList
InterlockedFlushSList
InitializeSListHead
GetTickCount64
DuplicateHandle
QueueUserAPC
WaitForSingleObjectEx
SetThreadPriority
GetThreadPriority
ResumeThread
GetCurrentThreadId
Sleep
TlsAlloc
GetCurrentThread
CreateThread
WaitForMultipleObjectsEx
SignalObjectAndWait
SetThreadStackGuarantee
VirtualQuery
GetStdHandle
WideCharToMultiByte
GetConsoleOutputCP
MapViewOfFileEx
UnmapViewOfFile
GetStringTypeExW
SetEvent
GetCurrentProcessorNumber
GlobalMemoryStatusEx
CreateIoCompletionPort
PostQueuedCompletionStatus
SleepEx
GetQueuedCompletionStatus
InterlockedPopEntrySList
GetCurrentProcessorNumberEx
ExitProcess
CreateMemoryResourceNotification
GetProcessAffinityMask
SetThreadIdealProcessorEx
GetThreadIdealProcessorEx
GetLargePageMinimum
VirtualUnlock
ResetWriteWatch
GetWriteWatch
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
CopyContext
GetSystemDefaultLCID
GetUserDefaultLCID
OutputDebugStringA
RtlUnwind
HeapAlloc
HeapFree
GetProcessHeap
HeapCreate
HeapDestroy
GetEnvironmentStringsW
FreeEnvironmentStringsW
FormatMessageW
GetACP
LCMapStringEx
LocalFree
VerSetConditionMask
VerifyVersionInfoW
IsWow64Process
FindClose
GetModuleFileNameW
FindNextFileW
QueryThreadCycleTime
VirtualAllocExNuma
GetNumaProcessorNodeEx
GetNumaHighestNodeNumber
GetSystemTimes
GetSystemTimeAsFileTime
CreateProcessW
GetCPInfo
LoadLibraryExW
CreateFileW
GetFileAttributesExW
GetTempPathW
GetCurrentDirectoryW
FindFirstFileExW
GetFullPathNameW
OpenProcess
LoadLibraryExA
OpenEventW
ExitThread
HeapReAlloc
CreateNamedPipeA
WaitForMultipleObjects
DisconnectNamedPipe
CreateFileA
CancelIoEx
GetOverlappedResult
ConnectNamedPipe
FlushFileBuffers
CreateFileMappingW
MapViewOfFile
GetActiveProcessorGroupCount
GetSystemTime
SetConsoleCtrlHandler
GetLocaleInfoEx
GetUserDefaultLocaleName
CreateDirectoryW
RemoveDirectoryW
GetFileSizeEx
LoadLibraryA
InitializeCriticalSectionAndSpinCount
AddVectoredExceptionHandler
SetUnhandledExceptionFilter
UnhandledExceptionFilter
TerminateProcess
GetCurrentProcessId
RaiseFailFastException
FreeLibrary
RaiseException
WaitForSingleObject
TlsSetValue
TlsGetValue
GetSystemInfo
ReadProcessMemory
IsDebuggerPresent
LeaveCriticalSection
EnterCriticalSection
DeleteCriticalSection
InitializeCriticalSection
WriteFile
GetProcessTimes
GetCommandLineW
ReadFile
SetFilePointer
GetProcAddress
GetModuleHandleExW
SetErrorMode
CloseHandle
GetCurrentProcess
FlushProcessWriteBuffers
SetLastError
GetLastError
OutputDebugStringW
SetXStateFeaturesMask
DebugBreak
DecodePointer
GetStringTypeW
IsProcessorFeaturePresent
EncodePointer
TlsFree
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

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

oleaut32

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

user32

MessageBoxW
LoadStringW

version

VerQueryValueW
GetFileVersionInfoExW
GetFileVersionInfoSizeExW

shell32

ShellExecuteW

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

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

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

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

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

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

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

atoi
_ltow_s
_wtoi
_wcstoui64
strtoul
strtoull
atol
_itow_s
wcstoul

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

_set_new_mode
malloc
calloc
free
realloc

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

qsort

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

_CIcosh
__libm_sse2_tan
_libm_sse2_acos_precise
_libm_sse2_asin_precise
_CIfmod
_CIsinh
_CItanh
__libm_sse2_sin
__libm_sse2_acos
__libm_sse2_asin
__libm_sse2_atan
_copysign
log2
atanh
modf
ilogb
cbrt
asinh
asinhf
ilogbf
atanhf
cbrtf
acoshf
log2f
_libm_sse2_atan_precise
__libm_sse2_pow
_libm_sse2_cos_precise
_libm_sse2_exp_precise
_isnan
_libm_sse2_log10_precise
_libm_sse2_log_precise
_libm_sse2_pow_precise
_libm_sse2_sin_precise
_libm_sse2_sqrt_precise
_fdopen
_libm_sse2_tan_precise
ceil
_finite
__libm_sse2_atan2
_CIatan2
__libm_sse2_cos
floor
__libm_sse2_log10
frexp
fma
fmaf
__libm_sse2_exp
acosh
__libm_sse2_log
__setusermatherr

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

_time64
_gmtime64_s
wcsftime

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

_configthreadlocale
localeconv
_lock_locales
_unlock_locales
setlocale
__pctype_func
___lc_locale_name_func
___lc_codepage_func
___mb_cur_max_func

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

_wremove
_wrename
_lock_file
_unlock_file

Exports

Exports

CLRJitAttachState
DotNetRuntimeInfo
MetaDataGetDispenser
g_CLREngineMetrics

Sections

.text
Size: 5.3MB - Virtual size: 5.3MB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.CLR_UEF
Size: 512B - Virtual size: 68B

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 1.2MB - Virtual size: 1.2MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 20KB - Virtual size: 72KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.didat
Size: 512B - Virtual size: 12B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

_RDATA
Size: 68KB - Virtual size: 67KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 1.2MB - Virtual size: 1.2MB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 268KB - Virtual size: 267KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

5faa4e2549a90b4b068a8d326d23ab61

Headers

DLL Characteristics

File Characteristics

PDB Paths

Imports

kernel32

advapi32

ole32

oleaut32

user32

version

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-locale-l1-1-0

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

Exports

Exports

Sections

.text Size: 5.3MB - Virtual size: 5.3MB

.CLR_UEF Size: 512B - Virtual size: 68B

.rdata Size: 1.2MB - Virtual size: 1.2MB

.data Size: 20KB - Virtual size: 72KB

.didat Size: 512B - Virtual size: 12B

_RDATA Size: 68KB - Virtual size: 67KB

.rsrc Size: 1.2MB - Virtual size: 1.2MB

.reloc Size: 268KB - Virtual size: 267KB

.text
Size: 5.3MB - Virtual size: 5.3MB

.CLR_UEF
Size: 512B - Virtual size: 68B

.rdata
Size: 1.2MB - Virtual size: 1.2MB

.data
Size: 20KB - Virtual size: 72KB

.didat
Size: 512B - Virtual size: 12B

_RDATA
Size: 68KB - Virtual size: 67KB

.rsrc
Size: 1.2MB - Virtual size: 1.2MB

.reloc
Size: 268KB - Virtual size: 267KB