755 ILCS 20/2
In case the estate consists of personal property, letters of office shall be granted thereon, as in other cases, and the same shall be administered in conformity with the probate laws of this State. Should there be any balance left in the possession of the administrator after the payment of debts and costs of administration, the administrator shall report the same to the circuit court, with a statement of all the facts within his knowledge as to the heirship of the decedent, which facts shall constitute a part of his report, and be filed in the court; and the court shall enter an order directing the administrator to pay over the balance found in his possession to the county treasurer of the county, taking his receipt therefor, which receipt shall be filed with the county clerk and entered of record, and shall be a good and sufficient voucher to the administrator. The county clerk shall also charge the amount to the county treasurer as an escheat fund, specially designating from whose estate the same was derived.
755 ILCS 20/2