Function at 0x40420f
Capabilities:
Check for time delay via gettickcount
Encode data using xor
Generate random numbers using the delphi lcg
Get file size
Read file via mapping

Disassembly:
push ebp
mov ebp, esp
and esp, 0xfffffff8
sub esp, 0xcf4
push ebx
push esi
push edi
call fcn.00403da5
mov esi, dword [sym.imp.KERNEL32.dll_GetTickCount]
call esi
and eax, 0x11
mov ebx, 0x405010
cmp eax, 0x111
je 0x40465f
call esi
mov dword [0x40500c], eax
call fcn.00403e97
mov ecx, eax
sub ecx, dword [0x40500c]
push 3
xor edx, edx
mov eax, ecx
pop esi
div esi
test ecx, 0xffff8000
jne 0x404510
xor eax, eax
xor edi, edi
mov dword [esp + 0x8e4], edi
mov word [esp + 0x4d0], ax
mov dword [esp + 0x4cc], edi
mov word [esp + 0xb8], ax
call fcn.00403e97
mov ecx, eax
sub ecx, dword [0x40500c]
xor edx, edx
mov eax, ecx
div esi
test ecx, 0xffff8000
jne 0x4043f5
push 0x4010d8
lea eax, [esp + 0x8ec]
call fcn.00404a23
push 0x10
call dword [sym.imp.KERNEL32.dll_GetCurrentProcessId]
lea ecx, [esp + 0x8ec]
call fcn.00404967
mov esi, dword [sym.imp.KERNEL32.dll_OpenFileMappingW]
mov eax, ecx
push eax
push edi
push 4
mov dword [esp + 0x40], edi
mov dword [esp + 0x44], edi
call esi
mov dword [esp + 0x14], eax
call dword [sym.imp.KERNEL32.dll_GetLastError]
mov dword [esp + 0x10], eax
cmp dword [esp + 0x14], edi
je 0x4043a7
push edi
push edi
push edi
push 4
push dword [esp + 0x24]
call dword [sym.imp.KERNEL32.dll_MapViewOfFile]
mov dword [esp + 0x34], eax
cmp eax, edi
je 0x40475c
push 0x4011b0
lea eax, [esp + 0x8ec]
call fcn.00404a07
mov eax, dword [esp + 0x34]
mov eax, dword [eax + 0x210]
push 0x10
lea ecx, [esp + 0x8ec]
call fcn.00404967
push dword [esp + 0x14]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
lea eax, [esp + 0x8e8]
push eax
push edi
push 4
call esi
mov esi, dword [sym.imp.KERNEL32.dll_GetLastError]
mov dword [esp + 0x14], eax
call esi
mov dword [esp + 0x10], eax
cmp dword [esp + 0x14], edi
je 0x404785
push edi
push edi
push edi
push 4
push dword [esp + 0x24]
call dword [sym.imp.KERNEL32.dll_MapViewOfFile]
mov dword [esp + 0x38], eax
cmp eax, edi
je 0x40477c
add eax, 0xc
push eax
lea eax, [esp + 0x4d4]
call fcn.00404a07
push dword [esp + 0x14]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
jmp 0x4043d7
cmp eax, 2
jne 0x4048ee
push 0x104
lea eax, [esp + 0x4d4]
push eax
push edi
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameW]
lea ecx, [esp + 0x4d0]
call fcn.00404956
mov dword [esp + 0x8e4], eax
call fcn.00403e97
mov ecx, eax
sub ecx, dword [0x40500c]
push 3
xor edx, edx
mov eax, ecx
pop esi
div esi
test ecx, 0xffff8000
je 0x4043fc
cmp edx, edi
jmp 0x404512
lea eax, [esp + 0x4d0]
push eax
lea esi, [esp + 0xbc]
call fcn.004049cd
push 0x401228
call fcn.004049cd
push edi
push edi
push 3
push edi
push 7
push 0x80000000
lea eax, [esp + 0x4e8]
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileW]
mov dword [esp + 0x18], eax
cmp eax, 0xffffffff
je 0x40478f
call fcn.00403dde
test eax, eax
jne 0x404245
xor edi, edi
push edi
push edi
push edi
push 2
push edi
push dword [esp + 0x2c]
call dword [sym.imp.KERNEL32.dll_CreateFileMappingW]
mov dword [esp + 0x20], eax
cmp eax, edi
je 0x40479c
mov esi, dword [sym.imp.KERNEL32.dll_MapViewOfFile]
push 0x1000
push edi
push edi
push 4
push eax
call esi
mov dword [esp + 0x1c], eax
cmp eax, edi
je 0x4047a9
mov edi, eax
call fcn.00403e14
push dword [esp + 0x1c]
mov edi, eax
mov dword [esp + 0x34], edi
call dword [sym.imp.KERNEL32.dll_UnmapViewOfFile]
lea eax, [esp + 0x84]
push eax
push dword [esp + 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileInformationByHandle]
test eax, eax
je 0x4047b6
xor eax, eax
cmp dword [esp + 0xa4], eax
jne 0x4044d3
cmp dword [esp + 0xa8], edi
jbe 0x40494f
add edi, 0x1000
push edi
push eax
push eax
push 4
push dword [esp + 0x30]
call esi
mov esi, eax
mov dword [esp + 0x1c], esi
test esi, esi
je 0x4047c3
call fcn.00403e97
mov ecx, eax
sub ecx, dword [0x40500c]
push 3
xor edx, edx
mov eax, ecx
pop edi
div edi
test ecx, 0xffff8000
je 0x404526
test edx, edx
je 0x404880
cmp edx, 1
je 0x404245
jmp 0x40465f
mov edi, esi
call fcn.00403e14
add eax, esi
mov ecx, dword [eax]
mov dword [esp + 0x10], eax
lea esi, [eax + 4]
cmp ecx, 0x6d7678
jne 0x4047d0
mov eax, dword [esi]
add esi, 4
cmp eax, 1
jne 0x4047e6
mov eax, dword [esi]
mov edi, eax
imul edi, edi, 0x8088405
add esi, 4
mov ecx, dword [esi]
inc edi
mov edx, edi
xor edx, eax
add esi, 4
cmp edx, ecx
jne 0x4047fc
mov ecx, dword [esi]
mov eax, edi
imul eax, eax, 0x8088405
inc eax
mov edx, eax
xor edx, edi
add esi, 4
cmp edx, ecx
jne 0x404812
mov ecx, dword [esi]
imul eax, eax, 0x8088405
push dword [esp + 0x1c]
inc eax
xor ecx, eax
imul eax, eax, 0x8088405
add esi, 4
inc eax
xor eax, dword [esi]
mov dword [esp + 0x2c], ecx
mov dword [esp + 0x28], eax
call dword [sym.imp.KERNEL32.dll_UnmapViewOfFile]
push dword [esp + 0x20]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
xor eax, eax
push eax
push eax
push eax
push 8
push eax
push dword [esp + 0x2c]
call dword [sym.imp.KERNEL32.dll_CreateFileMappingW]
mov dword [esp + 0x20], eax
test eax, eax
je 0x404828
sub esi, dword [esp + 0x10]
mov ecx, dword [esp + 0x24]
add esi, 4
add ecx, esi
add ecx, dword [esp + 0x30]
mov dword [esp + 0x3c], esi
push ecx
push 0
push 0
push 1
push eax
call dword [sym.imp.KERNEL32.dll_MapViewOfFile]
xor ecx, ecx
mov dword [esp + 0x1c], eax
cmp eax, ecx
je 0x404838
mov eax, dword [esp + 0x30]
add eax, esi
add eax, dword [esp + 0x1c]
mov esi, dword [esp + 0x24]
mov dword [esp + 0x2c], eax
cmp esi, ecx
jbe 0x40463a
imul edi, edi, 0x343fd
add edi, 0x269ec3
mov edx, edi
shr edx, 0x10
xor byte [eax], dl
inc eax
dec esi
jne 0x404623
lea esi, [esp + 0x4c]
mov dword [esp + 0x6c], ecx
mov dword [esp + 0x70], ecx
mov dword [esp + 0x74], ecx
mov dword [esp + 0x50], ecx
mov dword [esp + 0x4c], ecx
call fcn.00403d30
test eax, eax
jne 0x404848
push 4
push 0x1000
push dword [esp + 0x30]
push 0
call dword [sym.imp.KERNEL32.dll_VirtualAlloc]
mov esi, eax
call fcn.00403e97
mov ecx, eax
sub ecx, dword [0x40500c]
push 3
xor edx, edx
mov eax, ecx
pop edi
div edi
test ecx, 0xffff8000
je 0x4046a4
test edx, edx
je 0x404880
cmp edx, 1
jne 0x40465f
jmp 0x404245
mov eax, dword [esp + 0x24]
mov dword [esp + 0x50], eax
mov eax, dword [esp + 0x2c]
mov dword [esp + 0x4c], eax
mov eax, dword [esp + 0x28]
mov dword [esp + 0x5c], eax
lea eax, [esp + 0x4c]
push eax
mov dword [esp + 0x5c], esi
call fcn.00402e40
pop ecx
cmp eax, 1
jne 0x40485e
push dword [esp + 0x1c]
call dword [sym.imp.KERNEL32.dll_UnmapViewOfFile]
push dword [esp + 0x20]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
call fcn.00403e97
mov ecx, eax
sub ecx, dword [0x40500c]
push 3
xor edx, edx
mov eax, ecx
pop edi
div edi
test ecx, 0xffff8000
jne 0x404510
push esi
call fcn.00403f5e
mov dword [esp], 0x8000
push dword [esp + 0x2c]
mov edi, eax
push esi
call dword [sym.imp.KERNEL32.dll_VirtualFree]
test edi, edi
je 0x40492c
push edi
call fcn.00403e61
pop ecx
push edi
call fcn.00403ec4
pop ecx
mov dword [esp + 0x10], eax
test eax, eax
jne 0x404874
push 0x401120
mov eax, ebx
call fcn.00404a07
push 0x40135c
jmp 0x404925
call dword [sym.imp.KERNEL32.dll_GetLastError]
push 0x40110c
lea esi, [esp + 0xbc]
mov edi, eax
call fcn.004049cd
mov eax, edi
jmp 0x404903
call esi
push 0x4011ec
jmp 0x404767
push 0x401200
jmp 0x4048f3
call dword [sym.imp.KERNEL32.dll_GetLastError]
push 0x401230
jmp 0x404767
call dword [sym.imp.KERNEL32.dll_GetLastError]
push 0x40127c
jmp 0x404767
call dword [sym.imp.KERNEL32.dll_GetLastError]
push 0x401290
jmp 0x404767
call dword [sym.imp.KERNEL32.dll_GetLastError]
push 0x4012a4
jmp 0x404767
call dword [sym.imp.KERNEL32.dll_GetLastError]
push 0x4012b8
jmp 0x404767
push 0x401120
mov eax, ebx
call fcn.00404a07
push 0x4012cc
jmp 0x404925
push 0x401120
mov eax, ebx
call fcn.00404a07
push 0x4012dc
jmp 0x404925
push 0x401120
mov eax, ebx
call fcn.00404a07
push 0x4012ec
jmp 0x404925
push 0x401120
mov eax, ebx
call fcn.00404a07
push 0x4012fc
jmp 0x404925
call dword [sym.imp.KERNEL32.dll_GetLastError]
push 0x40130c
jmp 0x404767
call dword [sym.imp.KERNEL32.dll_GetLastError]
push 0x401320
jmp 0x404767
push 0x401120
mov eax, ebx
call fcn.00404a07
push 0x401334
jmp 0x404925
push 0x401120
mov eax, ebx
call fcn.00404a07
push 0x401344
jmp 0x404925
push 0
call dword [sym.imp.KERNEL32.dll_GetModuleHandleA]
mov dword [esp + 0x2c], eax
xor edi, edi
push edi
push edi
push edi
push 2
push edi
push dword [esp + 0x2c]
call dword [sym.imp.KERNEL32.dll_CreateFileMappingW]
mov esi, eax
cmp esi, edi
jne 0x4048a8
call dword [sym.imp.KERNEL32.dll_GetLastError]
push 0x40136c
jmp 0x404767
lea eax, [esp + 0x40]
push eax
push dword [esp + 0x1c]
call dword [sym.imp.KERNEL32.dll_GetFileSizeEx]
push dword [esp + 0x18]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push dword [esp + 0x38]
mov ecx, dword [esp + 0x28]
push dword [esp + 0x38]
mov eax, dword [esp + 0x44]
add eax, ecx
add eax, dword [esp + 0x38]
push eax
push dword [esp + 0x50]
push dword [esp + 0x50]
push esi
push dword [esp + 0x44]
call dword [esp + 0x2c]
add esp, 0x1c
jmp 0x40494f
push 0x401214
lea esi, [esp + 0xbc]
call fcn.004049cd
mov eax, dword [esp + 0x10]
push 0xa
lea ecx, [esp + 0xbc]
call fcn.00404967
push 0x401120
mov eax, ebx
call fcn.00404a07
lea eax, [esp + 0xb8]
push eax
mov esi, ebx
call fcn.004049cd
push 0x401380
push 0x40138c
call dword [sym.imp.KERNEL32.dll_LoadLibraryW]
push eax
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
push 0x10
push 0x4013a8
push ebx
push 0
call eax
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret