Function at 0x4038da
Capabilities:
Accept command line arguments
Check for time delay via gettickcount
Copy file
Create directory
Delete file
Get common file path
Get file system object information
Set current directory
Shutdown system
Terminate process

Disassembly:
sub esp, 0x2d8
push ebx
push ebp
push esi
push edi
push 0x20
xor ebx, ebx
pop esi
mov dword [esp + 0x18], ebx
mov dword [esp + 0x10], str.Error_writing_temporary_file._Make_sure_your_temp_folder_is_valid.
mov dword [esp + 0x14], ebx
call dword [sym.imp.KERNEL32.dll_GetTickCount]
mov dword [esp + 0x1c], eax
call dword [sym.imp.COMCTL32.dll_InitCommonControls]
push 0x8001
call dword [sym.imp.KERNEL32.dll_SetErrorMode]
push ebx
call dword [sym.imp.ole32.dll_OleInitialize]
push 8
mov dword [0x47fb98], eax
call fcn.00406352
push ebx
push 0x2b4
mov dword [0x47fab0], eax
lea eax, [esp + 0x3c]
push eax
push ebx
push 0x40a2cc
call dword [sym.imp.SHELL32.dll_SHGetFileInfoW]
push str.NSIS_Error
push 0x477aa0
call fcn.0040605f
call dword [sym.imp.KERNEL32.dll_GetCommandLineW]
push eax
mov edi, 0x4d00a0
push edi
call fcn.0040605f
push ebx
call dword [sym.imp.KERNEL32.dll_GetModuleHandleW]
cmp word [0x4d00a0], 0x22
mov dword [0x47fab8], eax
mov eax, edi
jne 0x403984
push 0x22
pop esi
mov eax, 0x4d00a2
push esi
push eax
call fcn.00405d5e
push eax
call dword [sym.imp.USER32.dll_CharNextW]
mov esi, eax
mov dword [esp + 0x20], esi
jmp 0x403a29
push 0x20
pop ebp
cmp ax, bp
jne 0x4039ac
inc esi
inc esi
cmp word [esi], bp
je 0x4039a5
cmp word [esi], 0x22
jne 0x4039b7
inc esi
push 0x22
inc esi
pop ebp
cmp word [esi], 0x2f
jne 0x403a18
inc esi
inc esi
cmp word [esi], 0x53
jne 0x4039d9
movzx eax, word [esi + 2]
cmp ax, 0x20
je 0x4039d4
cmp ax, bx
jne 0x4039d9
or dword [esp + 0x14], 2
push 4
push str.NCRC
push esi
call fcn.00403859
add esp, 0xc
test eax, eax
jne 0x403a01
movzx eax, word [esi + 8]
cmp ax, 0x20
je 0x4039fc
cmp ax, bx
jne 0x403a01
or dword [esp + 0x14], 4
push 4
lea eax, [esi - 4]
push str.__D
push eax
call fcn.00403859
add esp, 0xc
test eax, eax
je 0x403a37
push ebp
push esi
call fcn.00405d5e
mov esi, eax
cmp word [esi], 0x22
jne 0x403a29
inc esi
inc esi
movzx eax, word [esi]
cmp ax, bx
jne 0x40399d
jmp 0x403a54
push 8
lea eax, [esi - 4]
push ebx
push eax
call fcn.00408c0c
add esp, 0xc
add esi, 4
push esi
push 0x4d40a8
call fcn.0040605f
mov ebp, 0x4e40c8
push ebp
push 0x2004
call dword [sym.imp.KERNEL32.dll_GetTempPathW]
call fcn.00403825
test eax, eax
jne 0x403a92
push 0x1fff
push ebp
call dword [sym.imp.KERNEL32.dll_GetWindowsDirectoryW]
push str.Temp
push ebp
call sub.KERNEL32.dll_lstrcatW
call fcn.00403825
test eax, eax
je 0x403b46
push 0x4e00c0
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
push dword [esp + 0x14]
call fcn.004035e0
cmp eax, ebx
mov dword [esp + 0x10], eax
jne 0x403b46
cmp dword [0x47fb04], ebx
je 0x403b19
push ebx
push edi
call fcn.00405d5e
mov esi, eax
jmp 0x403adb
push 4
push 0x40a284
push esi
call fcn.00403859
add esp, 0xc
test eax, eax
je 0x403adf
dec esi
dec esi
cmp esi, edi
jae 0x403ac5
cmp esi, edi
mov dword [esp + 0x10], str.Error_launching_installer
jb 0x403b71
mov word [esi], bx
add esi, 8
push esi
call fcn.004067ca
test eax, eax
je 0x403b46
push esi
push 0x4d40a8
call fcn.0040605f
push esi
push 0x4d80b0
call fcn.0040605f
mov dword [esp + 0x10], ebx
or dword [0x47fb8c], 0xffffffff
call fcn.00405989
mov dword [esp + 0x18], eax
call dword [sym.imp.KERNEL32.dll_GetTickCount]
sub eax, dword [esp + 0x1c]
push eax
push dword [esp + 0x1c]
call fcn.00407a41
pop ecx
pop ecx
push 1
call fcn.0040613d
call fcn.004038b0
call dword [sym.imp.ole32.dll_OleUninitialize]
cmp dword [esp + 0x10], ebx
je 0x403c48
push 0x200010
push dword [esp + 0x14]
call fcn.00405cfa
push 2
call dword [sym.imp.KERNEL32.dll_ExitProcess]
push 0x40a270
push ebp
call sub.KERNEL32.dll_lstrcatW
mov esi, 0x4dc0b8
push esi
push ebp
call dword [sym.imp.KERNEL32.dll_lstrcmpiW]
test eax, eax
je 0x403b46
push ebx
push ebp
call dword [sym.imp.KERNEL32.dll_CreateDirectoryW]
push ebp
call dword [sym.imp.KERNEL32.dll_SetCurrentDirectoryW]
cmp word [0x4d40a8], bx
jne 0x403bb0
push esi
push 0x4d40a8
call fcn.0040605f
push dword [esp + 0x20]
push section..ndata
call fcn.0040605f
push 0x40a26c
push 0x484008
call fcn.0040605f
push 0x1a
pop edi
mov esi, 0x43ed40
mov eax, dword [0x47fabc]
push dword [eax + 0x134]
push esi
call fcn.00406852
push esi
call dword [sym.imp.KERNEL32.dll_DeleteFileW]
cmp dword [esp + 0x10], ebx
je 0x403c32
push 1
push esi
push 0x4ec0d8
call dword [sym.imp.KERNEL32.dll_CopyFileW]
test eax, eax
je 0x403c32
push ebx
push esi
call fcn.00406cae
mov eax, dword [0x47fabc]
push dword [eax + 0x138]
push esi
call fcn.00406852
push esi
call fcn.00405c99
cmp eax, ebx
je 0x403c32
push eax
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov dword [esp + 0x10], ebx
inc word [0x484008]
dec edi
jne 0x403bd5
push ebx
push ebp
call fcn.00406cae
jmp 0x403b46
cmp dword [0x47fb74], ebx
je 0x403ccb
push 3
call fcn.00406352
push 4
mov ebp, eax
call fcn.00406352
push 5
mov esi, eax
call fcn.00406352
cmp ebp, ebx
mov edi, eax
je 0x403cb7
cmp esi, ebx
je 0x403cb7
cmp edi, ebx
je 0x403cb7
lea eax, [esp + 0x1c]
push eax
push 0x28
call dword [sym.imp.KERNEL32.dll_GetCurrentProcess]
push eax
call ebp
test eax, eax
je 0x403cb7
lea eax, [esp + 0x28]
push eax
push str.SeShutdownPrivilege
push ebx
call esi
push ebx
push ebx
push ebx
lea eax, [esp + 0x30]
push eax
push ebx
push dword [esp + 0x30]
mov dword [esp + 0x3c], 1
mov dword [esp + 0x48], 2
call edi
push ebx
push 2
call dword [sym.imp.USER32.dll_ExitWindowsEx]
test eax, eax
jne 0x403ccb
push 9
call fcn.00401414
mov eax, dword [0x47fb8c]
cmp eax, 0xffffffff
je 0x403cd9
mov dword [esp + 0x18], eax
push dword [esp + 0x18]
jmp 0x403b6b