ExLoader[.]exe

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General

Target

ExLoader.exe
Size

376KB
MD5

60a6aba47fc3600e528f887ba8729170
SHA1

2478457d843fb6e4e366d28b592714622ad2f322
SHA256

3ed4e307356719e89bf61c6c76b026881767feff903cfb820eea8d988c7799ba
SHA512

2845239cef9676fe692b84c86e594f0558b05f595c4fafc7ebbdab0d548edc0a39b44333e3da77b3d7fecf4688a43c6914e499f9f47cb270fe54711b003a1c4b
SSDEEP

6144:taoIdvCSw3setwSMXnWXjgiDm+WQ87W84mOIqMLHxY1rnPAoViXbaGJECW:DWCb8eT0WXjgiDpP87imOIBLxY1TfAS3

Score

3^/10

Malware Config

Signatures

Unsigned PE 1 IoCs

Checks for missing Authenticode signature.

resource
ExLoader.exe

Files

ExLoader.exe
.exe windows:6 windows x64 arch:x64

738663afa4c817f39926f21ad28104f4

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

dwmapi

DwmSetWindowAttribute

flutter_windows

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

kernel32

GetCurrentProcessId
QueryPerformanceCounter
TerminateProcess
GetCurrentProcess
IsProcessorFeaturePresent
GetStartupInfoW
SetUnhandledExceptionFilter
UnhandledExceptionFilter
RtlVirtualUnwind
RtlLookupFunctionEntry
RtlCaptureContext
SleepConditionVariableSRW
GetCurrentThreadId
Sleep
AcquireSRWLockExclusive
ReleaseSRWLockExclusive
LoadLibraryExA
VirtualQuery
VirtualProtect
GetSystemInfo
RaiseException
GetSystemTimeAsFileTime
WakeAllConditionVariable
LoadLibraryA
GetModuleHandleW
FreeLibrary
GetLastError
WaitForSingleObject
GetTickCount64
LocalFree
GetCurrentDirectoryW
IsDebuggerPresent
GetModuleFileNameW
GetModuleHandleA
GetProcAddress
SetDllDirectoryW
AttachConsole
GetCommandLineW
WideCharToMultiByte
AllocConsole
InitializeSListHead

user32

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

shell32

CommandLineToArgvW

ole32

CoUninitialize
CoInitializeEx

advapi32

RegGetValueW
FreeSid

msvcp140

?cerr@std@@3V?$basic_ostream@DU?$char_traits@D@std@@@1@A
?_Raise_handler@std@@3P6AXAEBVexception@stdext@@@ZEA
?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
?fill@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBADXZ
?rdbuf@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBAPEAV?$basic_streambuf@DU?$char_traits@D@std@@@2@XZ
?tie@?$basic_ios@DU?$char_traits@D@std@@@std@@QEBAPEAV?$basic_ostream@DU?$char_traits@D@std@@@2@XZ
?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
?width@ios_base@std@@QEAA_J_J@Z
?width@ios_base@std@@QEBA_JXZ
?flags@ios_base@std@@QEBAHXZ
?good@ios_base@std@@QEBA_NXZ
?_Xbad_function_call@std@@YAXXZ
?_Throw_Cpp_error@std@@YAXH@Z
_Cnd_do_broadcast_at_thread_exit
_Thrd_detach
_Query_perf_frequency
_Query_perf_counter
?_Xout_of_range@std@@YAXPEBD@Z
?_Xlength_error@std@@YAXPEBD@Z
?_Xinvalid_argument@std@@YAXPEBD@Z
?sync_with_stdio@ios_base@std@@SA_N_N@Z
??6?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV01@H@Z
?flush@?$basic_ostream@DU?$char_traits@D@std@@@std@@QEAAAEAV12@XZ

vcruntime140

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

vcruntime140_1

__CxxFrameHandler4

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

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

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

free
_set_new_mode
malloc
_callnewh

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

rand
srand

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

atof
strtoll

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

_time64

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

__stdio_common_vsprintf_s
__stdio_common_vsprintf
_dup2
_fileno
freopen_s
__p__commode
_set_fmode
__acrt_iob_func

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

__setusermatherr

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

_configthreadlocale

Sections

.text
Size: 170KB - Virtual size: 169KB

IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ

.rdata
Size: 48KB - Virtual size: 48KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.data
Size: 4KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE

.pdata
Size: 7KB - Virtual size: 6KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.rsrc
Size: 144KB - Virtual size: 144KB

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ

.reloc
Size: 1024B - Virtual size: 544B

IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ

Sharing

General

Malware Config

Signatures

Files

738663afa4c817f39926f21ad28104f4

Headers

DLL Characteristics

File Characteristics

Imports

dwmapi

flutter_windows

kernel32

user32

shell32

ole32

advapi32

msvcp140

vcruntime140

vcruntime140_1

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

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

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

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

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

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

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

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

Sections

.text Size: 170KB - Virtual size: 169KB

.rdata Size: 48KB - Virtual size: 48KB

.data Size: 4KB - Virtual size: 6KB

.pdata Size: 7KB - Virtual size: 6KB

.rsrc Size: 144KB - Virtual size: 144KB

.reloc Size: 1024B - Virtual size: 544B

.text
Size: 170KB - Virtual size: 169KB

.rdata
Size: 48KB - Virtual size: 48KB

.data
Size: 4KB - Virtual size: 6KB

.pdata
Size: 7KB - Virtual size: 6KB

.rsrc
Size: 144KB - Virtual size: 144KB

.reloc
Size: 1024B - Virtual size: 544B