Function at 0x100419f
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.01003d35
mov esi, dword [sym.imp.KERNEL32.dll_GetTickCount]
call esi
and eax, 0x11
mov ebx, 0x1005010
cmp eax, 0x111
je 0x10045ef
call esi
mov dword [0x100500c], eax
call fcn.01003e27
mov ecx, eax
sub ecx, dword [0x100500c]
push 3
xor edx, edx
mov eax, ecx
pop esi
div esi
test ecx, 0xffff8000
jne 0x10044a0
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.01003e27
mov ecx, eax
sub ecx, dword [0x100500c]
xor edx, edx
mov eax, ecx
div esi
test ecx, 0xffff8000
jne 0x1004385
push 0x10010b0
lea eax, [esp + 0x8ec]
call fcn.010049b3
push 0x10
call dword [sym.imp.KERNEL32.dll_GetCurrentProcessId]
lea ecx, [esp + 0x8ec]
call fcn.010048f7
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 0x1004337
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 0x10046ec
push 0x1001188
lea eax, [esp + 0x8ec]
call fcn.01004997
mov eax, dword [esp + 0x34]
mov eax, dword [eax + 0x210]
push 0x10
lea ecx, [esp + 0x8ec]
call fcn.010048f7
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 0x1004715
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 0x100470c
add eax, 0xc
push eax
lea eax, [esp + 0x4d4]
call fcn.01004997
push dword [esp + 0x14]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
jmp 0x1004367
cmp eax, 2
jne 0x100487e
push 0x104
lea eax, [esp + 0x4d4]
push eax
push edi
call dword [sym.imp.KERNEL32.dll_GetModuleFileNameW]
lea ecx, [esp + 0x4d0]
call fcn.010048e6
mov dword [esp + 0x8e4], eax
call fcn.01003e27
mov ecx, eax
sub ecx, dword [0x100500c]
push 3
xor edx, edx
mov eax, ecx
pop esi
div esi
test ecx, 0xffff8000
je 0x100438c
cmp edx, edi
jmp 0x10044a2
lea eax, [esp + 0x4d0]
push eax
lea esi, [esp + 0xbc]
call fcn.0100495d
push 0x1001200
call fcn.0100495d
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 0x100471f
call fcn.01003d6e
test eax, eax
jne 0x10041d5
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 0x100472c
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 0x1004739
mov edi, eax
call fcn.01003da4
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 0x1004746
xor eax, eax
cmp dword [esp + 0xa4], eax
jne 0x1004463
cmp dword [esp + 0xa8], edi
jbe 0x10048df
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 0x1004753
call fcn.01003e27
mov ecx, eax
sub ecx, dword [0x100500c]
push 3
xor edx, edx
mov eax, ecx
pop edi
div edi
test ecx, 0xffff8000
je 0x10044b6
test edx, edx
je 0x1004810
cmp edx, 1
je 0x10041d5
jmp 0x10045ef
mov edi, esi
call fcn.01003da4
add eax, esi
mov ecx, dword [eax]
mov dword [esp + 0x10], eax
lea esi, [eax + 4]
cmp ecx, 0x6d7678
jne 0x1004760
mov eax, dword [esi]
add esi, 4
cmp eax, 1
jne 0x1004776
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 0x100478c
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 0x10047a2
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 0x10047b8
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 0x10047c8
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 0x10045ca
imul edi, edi, 0x343fd
add edi, 0x269ec3
mov edx, edi
shr edx, 0x10
xor byte [eax], dl
inc eax
dec esi
jne 0x10045b3
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.01003cc0
test eax, eax
jne 0x10047d8
push 4
push 0x1000
push dword [esp + 0x30]
push 0
call dword [sym.imp.KERNEL32.dll_VirtualAlloc]
mov esi, eax
call fcn.01003e27
mov ecx, eax
sub ecx, dword [0x100500c]
push 3
xor edx, edx
mov eax, ecx
pop edi
div edi
test ecx, 0xffff8000
je 0x1004634
test edx, edx
je 0x1004810
cmp edx, 1
jne 0x10045ef
jmp 0x10041d5
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.01002dd0
pop ecx
cmp eax, 1
jne 0x10047ee
push dword [esp + 0x1c]
call dword [sym.imp.KERNEL32.dll_UnmapViewOfFile]
push dword [esp + 0x20]
call dword [sym.imp.KERNEL32.dll_CloseHandle]
call fcn.01003e27
mov ecx, eax
sub ecx, dword [0x100500c]
push 3
xor edx, edx
mov eax, ecx
pop edi
div edi
test ecx, 0xffff8000
jne 0x10044a0
push esi
call fcn.01003eee
mov dword [esp], 0x8000
push dword [esp + 0x2c]
mov edi, eax
push esi
call dword [sym.imp.KERNEL32.dll_VirtualFree]
test edi, edi
je 0x10048bc
push edi
call fcn.01003df1
pop ecx
push edi
call fcn.01003e54
pop ecx
mov dword [esp + 0x10], eax
test eax, eax
jne 0x1004804
push 0x10010f8
mov eax, ebx
call fcn.01004997
push 0x1001334
jmp 0x10048b5
call dword [sym.imp.KERNEL32.dll_GetLastError]
push 0x10010e4
lea esi, [esp + 0xbc]
mov edi, eax
call fcn.0100495d
mov eax, edi
jmp 0x1004893
call esi
push 0x10011c4
jmp 0x10046f7
push 0x10011d8
jmp 0x1004883
call dword [sym.imp.KERNEL32.dll_GetLastError]
push 0x1001208
jmp 0x10046f7
call dword [sym.imp.KERNEL32.dll_GetLastError]
push 0x1001254
jmp 0x10046f7
call dword [sym.imp.KERNEL32.dll_GetLastError]
push 0x1001268
jmp 0x10046f7
call dword [sym.imp.KERNEL32.dll_GetLastError]
push 0x100127c
jmp 0x10046f7
call dword [sym.imp.KERNEL32.dll_GetLastError]
push 0x1001290
jmp 0x10046f7
push 0x10010f8
mov eax, ebx
call fcn.01004997
push 0x10012a4
jmp 0x10048b5
push 0x10010f8
mov eax, ebx
call fcn.01004997
push 0x10012b4
jmp 0x10048b5
push 0x10010f8
mov eax, ebx
call fcn.01004997
push 0x10012c4
jmp 0x10048b5
push 0x10010f8
mov eax, ebx
call fcn.01004997
push 0x10012d4
jmp 0x10048b5
call dword [sym.imp.KERNEL32.dll_GetLastError]
push 0x10012e4
jmp 0x10046f7
call dword [sym.imp.KERNEL32.dll_GetLastError]
push 0x10012f8
jmp 0x10046f7
push 0x10010f8
mov eax, ebx
call fcn.01004997
push 0x100130c
jmp 0x10048b5
push 0x10010f8
mov eax, ebx
call fcn.01004997
push 0x100131c
jmp 0x10048b5
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 0x1004838
call dword [sym.imp.KERNEL32.dll_GetLastError]
push 0x1001344
jmp 0x10046f7
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 0x10048df
push 0x10011ec
lea esi, [esp + 0xbc]
call fcn.0100495d
mov eax, dword [esp + 0x10]
push 0xa
lea ecx, [esp + 0xbc]
call fcn.010048f7
push 0x10010f8
mov eax, ebx
call fcn.01004997
lea eax, [esp + 0xb8]
push eax
mov esi, ebx
call fcn.0100495d
push 0x1001358
push 0x1001364
call dword [sym.imp.KERNEL32.dll_LoadLibraryW]
push eax
call dword [sym.imp.KERNEL32.dll_GetProcAddress]
push 0x10
push 0x1001380
push ebx
push 0
call eax
pop edi
pop esi
pop ebx
mov esp, ebp
pop ebp
ret