This icon is a part of a collection of Formularz flat icons produced by Icons8. Icons follow the guidelines of iOS, Windows, and Android and are designed by a single designer, guaranteeing the consistent quality. Both PNG and vector are available.
This looks like a square with several objects in the center of it. At the top of the square, there is a line on the left and a horizontal rectangle on the right. These two same shapes are across the middle. at the bottom, there's a small square and a line to its right.