Function at 0x405240
Capabilities:
Allocate or change rwx memory
Create thread
Execute shellcode via indirect call
Inject thread
Spawn thread to rwx shellcode

Disassembly:
push ebp
mov ebp, esp
and esp, 0xfffffff8
push ecx
push ebx
push esi
push edi
push ecx
push 0
push 0x1fffff
mov esi, edx
call dword [sym.imp.KERNEL32.dll_OpenProcess]
mov edi, eax
test edi, edi
jne 0x405298
mov ecx, dword [sym.imp.MSVCP140.dll_class_std::basic_ostream_char__struct_std::char_traits_char___std::cerr]
mov edx, 0x415744
call fcn.00409440
mov esi, eax
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
mov ecx, esi
call dword [sym.imp.MSVCP140.dll_public:_class_std::basic_ostream_char__struct_std::char_traits_char______thiscall_std::basic_ostream_char__struct_std::char_traits_char__::operator___unsigned_long_int_]
push 0x409660
mov ecx, eax
call dword [sym.imp.MSVCP140.dll_public:_class_std::basic_ostream_char__struct_std::char_traits_char______thiscall_std::basic_ostream_char__struct_std::char_traits_char__::operator___class_std::basic_ostream_char__struct_std::char_traits_char_______cdecl___class_std::basic_ostream_char__struct_std::char_traits_char_____]
or eax, 0xffffffff
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
push str.LoadLibraryA
push str.kernel32.dll
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
push eax
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
mov dword [esp + 0xc], eax
test eax, eax
jne 0x4052f6
mov ecx, dword [sym.imp.MSVCP140.dll_class_std::basic_ostream_char__struct_std::char_traits_char___std::cerr]
mov edx, 0x415770
call fcn.00409440
mov esi, eax
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
mov ecx, esi
call dword [sym.imp.MSVCP140.dll_public:_class_std::basic_ostream_char__struct_std::char_traits_char______thiscall_std::basic_ostream_char__struct_std::char_traits_char__::operator___unsigned_long_int_]
push 0x409660
mov ecx, eax
call dword [sym.imp.MSVCP140.dll_public:_class_std::basic_ostream_char__struct_std::char_traits_char______thiscall_std::basic_ostream_char__struct_std::char_traits_char__::operator___class_std::basic_ostream_char__struct_std::char_traits_char_______cdecl___class_std::basic_ostream_char__struct_std::char_traits_char_____]
push edi
call dword [sym.imp.KERNEL32.dll_CloseHandle]
or eax, 0xffffffff
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
mov ecx, esi
lea edx, [ecx + 1]
nop dword [eax + eax]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x405300
sub ecx, edx
push 0x40
push 0x3000
lea eax, [ecx + 1]
push eax
push 0
push edi
call dword [sym.imp.KERNEL32.dll_VirtualAllocEx]
mov ebx, eax
test ebx, ebx
jne 0x405362
mov ecx, dword [sym.imp.MSVCP140.dll_class_std::basic_ostream_char__struct_std::char_traits_char___std::cerr]
mov edx, 0x4157a4
call fcn.00409440
mov esi, eax
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
mov ecx, esi
call dword [sym.imp.MSVCP140.dll_public:_class_std::basic_ostream_char__struct_std::char_traits_char______thiscall_std::basic_ostream_char__struct_std::char_traits_char__::operator___unsigned_long_int_]
push 0x409660
mov ecx, eax
call dword [sym.imp.MSVCP140.dll_public:_class_std::basic_ostream_char__struct_std::char_traits_char______thiscall_std::basic_ostream_char__struct_std::char_traits_char__::operator___class_std::basic_ostream_char__struct_std::char_traits_char_______cdecl___class_std::basic_ostream_char__struct_std::char_traits_char_____]
push edi
call dword [sym.imp.KERNEL32.dll_CloseHandle]
or eax, 0xffffffff
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
mov ecx, esi
lea edx, [ecx + 1]
mov al, byte [ecx]
inc ecx
test al, al
jne 0x405367
sub ecx, edx
push 0
lea eax, [ecx + 1]
push eax
push esi
push ebx
push edi
call dword [sym.imp.KERNEL32.dll_WriteProcessMemory]
test eax, eax
jne 0x4053d1
mov ecx, dword [sym.imp.MSVCP140.dll_class_std::basic_ostream_char__struct_std::char_traits_char___std::cerr]
mov edx, 0x4157d8
call fcn.00409440
mov esi, eax
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
mov ecx, esi
call dword [sym.imp.MSVCP140.dll_public:_class_std::basic_ostream_char__struct_std::char_traits_char______thiscall_std::basic_ostream_char__struct_std::char_traits_char__::operator___unsigned_long_int_]
push 0x409660
mov ecx, eax
call dword [sym.imp.MSVCP140.dll_public:_class_std::basic_ostream_char__struct_std::char_traits_char______thiscall_std::basic_ostream_char__struct_std::char_traits_char__::operator___class_std::basic_ostream_char__struct_std::char_traits_char_______cdecl___class_std::basic_ostream_char__struct_std::char_traits_char_____]
push 0x8000
push 0
push ebx
push edi
call dword [sym.imp.KERNEL32.dll_VirtualFreeEx]
push edi
call dword [sym.imp.KERNEL32.dll_CloseHandle]
or eax, 0xffffffff
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
push 0
push 0
push ebx
push dword [esp + 0x18]
push 0
push 0
push edi
call dword [sym.imp.KERNEL32.dll_CreateRemoteThread]
mov esi, eax
test esi, esi
jne 0x405439
mov ecx, dword [sym.imp.MSVCP140.dll_class_std::basic_ostream_char__struct_std::char_traits_char___std::cerr]
mov edx, 0x41580c
call fcn.00409440
mov esi, eax
call dword [sym.imp.KERNEL32.dll_GetLastError]
push eax
mov ecx, esi
call dword [sym.imp.MSVCP140.dll_public:_class_std::basic_ostream_char__struct_std::char_traits_char______thiscall_std::basic_ostream_char__struct_std::char_traits_char__::operator___unsigned_long_int_]
push 0x409660
mov ecx, eax
call dword [sym.imp.MSVCP140.dll_public:_class_std::basic_ostream_char__struct_std::char_traits_char______thiscall_std::basic_ostream_char__struct_std::char_traits_char__::operator___class_std::basic_ostream_char__struct_std::char_traits_char_______cdecl___class_std::basic_ostream_char__struct_std::char_traits_char_____]
push 0x8000
push 0
push ebx
push edi
call dword [sym.imp.KERNEL32.dll_VirtualFreeEx]
push edi
call dword [sym.imp.KERNEL32.dll_CloseHandle]
or eax, 0xffffffff
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret
push 0xffffffffffffffff
push esi
call dword [sym.imp.KERNEL32.dll_WaitForSingleObject]
push 0x8000
push 0
push ebx
push edi
call dword [sym.imp.KERNEL32.dll_VirtualFreeEx]
push esi
mov esi, dword [sym.imp.KERNEL32.dll_CloseHandle]
call esi
push edi
call esi
pop edi
pop esi
mov eax, 1
pop ebx
mov esp, ebp
pop ebp
ret