ExLoader[.]exe

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General

Target

ExLoader.exe
Size

199KB
MD5

101d19cf228bc8eae04d4c0e0b1cbd5a
SHA1

a9af3a16ee707c8ef53b48d37be4bf36b49eb796
SHA256

72ff6a19030ca6fd7e31a44e5e9343cce04c5029db8092c43430d5f5fd5897ae
SHA512

0d8172eba90a4083cef15c9ade47faf83d68d865b3e39c7ff7734eedc6b5ac8594bf510e625b02194d378d99c0397e7c5f44ad0477c9bce710e6644d4ab82929
SSDEEP

6144:hCQTJ5xfRk1L1JvANdsJqihHp+pWYGZ8YXk:hTxRkR17okJq5a8YXk

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
ExLoader.exe

Files

ExLoader.exe
.exe windows x64

4e8d6f9bba383ad52166b9cf88380a88

Headers

DLL Characteristics

IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE

File Characteristics

IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE

Imports

flutter_windows

FlutterDesktopMessengerUnlock
FlutterDesktopResyncOutputStreams
FlutterDesktopGetDpiForMonitor
FlutterDesktopEngineCreate
FlutterDesktopEngineDestroy
FlutterDesktopMessengerLock
FlutterDesktopMessengerIsAvailable
FlutterDesktopMessengerRelease
FlutterDesktopMessengerAddRef
FlutterDesktopMessengerSetCallback
FlutterDesktopMessengerSendResponse
FlutterDesktopMessengerSendWithReply
FlutterDesktopMessengerSend
FlutterDesktopViewControllerHandleTopLevelWindowProc
FlutterDesktopViewControllerGetView
FlutterDesktopViewControllerDestroy
FlutterDesktopViewControllerCreate
FlutterDesktopEngineGetMessenger
FlutterDesktopEngineGetPluginRegistrar
FlutterDesktopEngineReloadSystemFonts
FlutterDesktopViewGetHWND

kernel32

InitializeSListHead
GetSystemTimeAsFileTime
GetCurrentThreadId
GetCurrentProcessId
QueryPerformanceCounter
TerminateProcess
GetCurrentProcess
IsProcessorFeaturePresent
GetStartupInfoW
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
CreateEventW
WaitForSingleObjectEx
ResetEvent
SetEvent
DeleteCriticalSection
InitializeCriticalSectionAndSpinCount
LeaveCriticalSection
EnterCriticalSection
CloseHandle
LoadLibraryA
GetModuleHandleW
FreeLibrary
AllocConsole
WideCharToMultiByte
ReadProcessMemory
GetModuleHandleA
GetProcAddress
IsDebuggerPresent
AttachConsole
GetCommandLineW
LocalFree

user32

SetForegroundWindow
GetClientRect
GetWindowRect
GetWindowLongPtrW
SetWindowLongPtrW
GetSystemMetrics
LoadCursorW
LoadIconW
MonitorFromPoint
GetMonitorInfoW
GetAncestor
SetFocus
SetParent
GetMessageW
TranslateMessage
DispatchMessageW
IsWindowVisible
SetWindowPos
MoveWindow
ShowWindow
DestroyWindow
CreateWindowExW
UnregisterClassW
RegisterClassW
PostQuitMessage
DefWindowProcW
PostMessageW
IsIconic

shell32

CommandLineToArgvW

ole32

CoInitializeEx
CoUninitialize

msvcp140

?sync_with_stdio@ios_base@std@@SA_N_N@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@H@Z
?cerr@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
?_Raise_handler@std@@3P6AXAEBVexception@stdext@@@ZEA
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ
?put@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@D@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@P6AAEAV01@AEAV01@@Z@Z
?_Osfx@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAXXZ
?widen@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBADD@Z
?setstate@?$basic_ios@DU?$char_traits@D@std@@@std@@QEAAXH_N@Z
?sputn@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAA_JPEBD_J@Z
?sputc@?$basic_streambuf@DU?$char_traits@D@std@@@std@@QEAAHD@Z
?_Xbad_function_call@std@@YAXXZ
?_Xlength_error@std@@YAXPEBD@Z

vcruntime140

_CxxThrowException
__std_exception_copy
__C_specific_handler
__current_exception_context
__current_exception
__std_type_info_compare
__std_exception_destroy
__std_terminate
memset
memcmp
memcpy
memmove

vcruntime140_1

__CxxFrameHandler4

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

_initterm_e
exit
_invoke_watson
_initterm
_get_wide_winmain_command_line
_initialize_wide_environment
_configure_wide_argv
_invalid_parameter_noinfo_noreturn
_exit
_c_exit
terminate
_register_thread_local_exe_atexit_callback
_initialize_onexit_table
_register_onexit_function
_crt_atexit
_cexit
_seh_filter_exe
_set_app_type

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

_stricmp
isdigit

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

free
_callnewh
malloc
_set_new_mode

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

_fileno
freopen_s
__acrt_iob_func
_dup2
__p__commode
__stdio_common_vsprintf
__stdio_common_vsprintf_s
_set_fmode

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

atof

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

__setusermatherr

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

_configthreadlocale

Sections

.text
Size: 63KB - Virtual size: 62KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 24KB - Virtual size: 23KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 3KB - Virtual size: 4KB

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

.rsrc
Size: 104KB - Virtual size: 103KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 512B - Virtual size: 352B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

4e8d6f9bba383ad52166b9cf88380a88

Headers

DLL Characteristics

File Characteristics

Imports

flutter_windows

kernel32

user32

shell32

ole32

msvcp140

vcruntime140

vcruntime140_1

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

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

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

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

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

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

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

Sections

.text Size: 63KB - Virtual size: 62KB

.rdata Size: 24KB - Virtual size: 23KB

.data Size: 3KB - Virtual size: 4KB

.pdata Size: 4KB - Virtual size: 3KB

.rsrc Size: 104KB - Virtual size: 103KB

.reloc Size: 512B - Virtual size: 352B

.text
Size: 63KB - Virtual size: 62KB

.rdata
Size: 24KB - Virtual size: 23KB

.data
Size: 3KB - Virtual size: 4KB

.pdata
Size: 4KB - Virtual size: 3KB

.rsrc
Size: 104KB - Virtual size: 103KB

.reloc
Size: 512B - Virtual size: 352B