It's a logo for a document called DOC. It has a piece of paper with the top-right corner folded over. It has the word DOC written on the center of the piece of paper.
This DOC icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 5,700 icons, all in the same style and quality.