Has anyone ever heard of a Dixon or on Capital Funding?

They offered me a $25,000 secured loan at 7.5% for 4 years. I just have to make the first 4 months payment upfront ($2400). I don't have good credit. They are saying that the loan is "secured" because I am paying the $2400 upfront. Does that make sense? Normally a secured loan offers something that would be equal to the loan amount for collateral right? Any advice would be really helpful. Thanks!!