Function at 0x40305d
Capabilities:
Check for time delay via gettickcount
Get file size

Disassembly:
push ebp
mov ebp, esp
sub esp, 0x12c
push ebx
push esi
xor esi, esi
push edi
mov dword [ebp - 4], esi
call dword [sym.imp.KERNEL32.dll_GetTickCount]
mov dword [ebp - 0xc], esi
mov dword [ebp - 8], esi
mov esi, 0x42cc00
push 0x400
push esi
mov ebx, eax
push dword [0x426700]
add ebx, 0x3e8
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameA]
push 3
push 0x80000000
push esi
call fcn.00405d6b
mov edi, eax
cmp edi, 0xffffffff
mov dword [0x40a5c4], edi
jne 0x4030bd
mov eax, str.Error_launching_installer
jmp 0x403348
push esi
call fcn.00405bee
push 0
push edi
call dword [sym.imp.KERNEL32.dll_GetFileSize]
test eax, eax
mov dword [0x4208b0], eax
mov esi, eax
jle 0x403204
mov eax, dword [0x42670c]
mov edi, esi
neg eax
sbb eax, eax
and eax, 0x7e00
add eax, 0x200
cmp esi, eax
jl 0x4030f6
mov edi, eax
push edi
push 0x4188b0
call fcn.0040365b
test eax, eax
je 0x40329b
xor eax, eax
cmp dword [0x42670c], eax
jne 0x403192
push 0x1c
lea eax, [ebp - 0x28]
push 0x4188b0
push eax
call fcn.00405d4b
mov ecx, dword [ebp - 0x28]
test ecx, 0xfffffff0
jne 0x4031cc
cmp dword [ebp - 0x24], 0xdeadbeef
jne 0x4031cc
cmp dword [ebp - 0x18], 0x74736e49
jne 0x4031cc
cmp dword [ebp - 0x1c], 0x74666f73
jne 0x4031cc
cmp dword [ebp - 0x20], 0x6c6c754e
jne 0x4031cc
mov eax, dword [ebp - 0x10]
cmp eax, esi
jg 0x4032ed
or dword [ebp + 8], ecx
mov edx, dword [0x4188a0]
test byte [ebp + 8], 8
mov dword [0x42670c], edx
jne 0x403184
test byte [ebp + 8], 4
jne 0x4031f5
inc dword [ebp - 8]
lea esi, [eax - 4]
cmp edi, esi
jbe 0x4031cc
mov edi, esi
jmp 0x4031cc
test byte [ebp + 8], 2
jne 0x4031cc
cmp dword [ebp - 4], eax
je 0x4031a5
push eax
call fcn.00406584
jmp 0x4031cc
call dword [sym.imp.KERNEL32.dll_GetTickCount]
cmp eax, ebx
jbe 0x4031cc
push str.verifying_installer:__d__
push 0x402faa
push 0
push 0x6f
push dword [0x426700]
call dword [sym.imp.USER32.dll_CreateDialogParamA]
mov dword [ebp - 4], eax
cmp esi, dword [0x4208b0]
jge 0x4031e5
push edi
push 0x4188b0
push dword [ebp - 0xc]
call fcn.004065b7
mov dword [ebp - 0xc], eax
add dword [0x4188a0], edi
sub esi, edi
test esi, esi
jg 0x4030db
cmp dword [ebp - 4], 0
je 0x403204
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
cmp dword [0x42670c], 0
je 0x4032ed
cmp dword [ebp - 8], 0
je 0x403241
push dword [0x4188a0]
call fcn.0040368d
lea eax, [ebp - 8]
push 4
push eax
call fcn.0040365b
test eax, eax
je 0x4032ed
mov eax, dword [ebp - 0xc]
cmp eax, dword [ebp - 8]
jne 0x4032ed
push dword [ebp - 0x14]
push 0x40
call dword [sym.imp.KERNEL32.dll_GlobalAlloc]
mov ecx, 0x40c7d8
mov esi, eax
call fcn.00406625
lea eax, [ebp - 0x12c]
push 0x42d400
push eax
call fcn.00405d9a
xor edi, edi
lea eax, [ebp - 0x12c]
push edi
push 0x4000100
push 2
push edi
push edi
push 0xc0000000
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileA]
cmp eax, 0xffffffff
mov dword [0x40a5c8], eax
jne 0x4032ac
mov eax, str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
jmp 0x403348
cmp dword [ebp - 4], 0
je 0x4032ed
push dword [ebp - 4]
call dword [sym.imp.USER32.dll_DestroyWindow]
jmp 0x4032ed
mov eax, dword [0x42670c]
add eax, 0x1c
push eax
call fcn.0040368d
mov ecx, dword [ebp - 0x28]
push dword [ebp - 0x14]
not ecx
and ecx, 4
mov dword [0x4208b4], eax
sub eax, ecx
mov ecx, dword [ebp - 0x10]
push esi
push edi
lea eax, [eax + ecx - 0x1c]
push 0xffffffffffffffff
mov dword [0x4188a8], eax
call fcn.0040334f
cmp eax, dword [ebp - 0x14]
je 0x4032f4
push esi
call dword [sym.imp.KERNEL32.dll_GlobalFree]
mov eax, str.The_installer_you_are_trying_to_use_is_corrupted_or_incomplete._nThis_could_be_the_result_of_a_damaged_disk__a_failed_download_or_a_virus._n_nYou_may_want_to_contact_the_author_of_this_installer_to_obtain_a_new_copy._n_nIt_may_be_possible_to_skip_this_check_using_the__NCRC_command_line_switch_n_NOT_RECOMMENDED_.
jmp 0x403348
test byte [ebp + 8], 2
mov dword [0x426708], esi
je 0x403303
or dword [esi], 8
mov eax, dword [esi]
and eax, 0x18
test byte [ebp - 0x28], 1
mov dword [0x4267a0], eax
mov eax, dword [esi]
mov dword [0x426710], eax
je 0x403320
inc dword [0x426714]
push 8
lea eax, [esi + 0x44]
pop ecx
sub eax, 8
add dword [eax], esi
dec ecx
jne 0x403326
mov eax, dword [0x4188a4]
push 0x40
mov dword [esi + 0x3c], eax
add esi, 4
push esi
push 0x426720
call fcn.00405d4b
xor eax, eax
pop edi
pop esi
pop ebx
leave
ret 4