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 flat color style
. This format was developed by Icons8 designer team and became immensely popular for use in web and mobile applications. Feel free to download this icon in PNG format for free, or unlock other formats for $5. Unlike other icon packs that have merely hundreds of icons, this monster icon pack contains 5,900 icons, all in the same style and quality.