Preheat the oven to 325 degrees F (165 degrees C). Grease and flour a 9x13-inch pan.
Mix together cake mix, 2 eggs, and ½ cup melted butter in a large bowl. Pour into the prepared pan.
Beat cream cheese in another bowl until smooth. Blend in remaining ½ cup melted butter and 2 eggs. Gradually beat in confectioners' sugar. Pour over cake mixture already in the pan.
Bake in the preheated oven for 1 hour. Allow to cool.
