735 ILCS 5/12-134
If at any sale held pursuant to Section 12-132 of this Act, a greater amount is bid and the premises sold for more than the amount of such redemption money, interest and costs, the excess shall be applied on the judgment under which the redemption was made; and a certificate of the purchase shall be delivered to the new purchaser in like form and manner as upon the first sale, for a deed of the premises so sold, in 60 days from the date of such sale, unless the same are redeemed before the expiration of that time, by some other judgment creditor, his or her heirs, executors, administrators or assigns, or by any defendant, his or her heirs, executors, administrators, assigns, or any person interested in the premises through or under the defendant, as provided in Section 12-137 of this Act.
735 ILCS 5/12-134