It's an arrow pointing straight up and angled to the right. The direction that could also be used to describe this arrow is much like you would see if looking at a compass and it pointed to a north east direction.
This Up Right 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 5,500 icons, all in the same style and quality.