Need help finding a script for *.ca2 files

[Trash_Bandatcoot]

Title says it pretty much. These files are from Forza Motorsport and are basically encrypted *.cab files. I can extract those no problem with a script I found online, but I've got yet to find a tool or script for QuickBMS that can extract *.ca2. This is pretty annoying. Any help in the right direction is appreciated.

[Trash_Bandatcoot]

Here's the two files for comparison in a hex editor, and here's the script I used if anyone's curious: http://aluigi.altervista.org/bms/forza_motorsport.bms