Left-back Easton has made 16 appearances since joining from Dundee in the summer while former Falkirk player Scobbie has played 23 times this season.
Manager Tommy Wright told the club's official website: "It's great to have them tied up on extended deals.
"Both have been very influential for us and coming on the heels of Gary McDonald and Scott Brown renewing their contracts recently, it is good news. We will be working hard to tie up others in the weeks ahead."
- Sports & Recreation