This Star Wars papercraft is a B1 Battle Droid, a model of droid built by Baktoid Combat Automata to serve as military foot-soldiers, the paper model was created by Black Fold Work Shop. There is also an E-5 Blaster Rifle Paper Model available.
There are other versions of Star Wars B1 Battle Droid paper craft model at the site:
Star Wars – B1 Battle Droid Free Paper Model
Star Wars – Trade Federation B1 Battle Droid Free Paper Model
Star Wars – B1 Battle Droid Ver.3 Free Papercraft
Star Wars - B1 Battle Droid Ver.4 Free Papercraft
You can download the paper model template here: Star Wars - B1 Battle Droid Ver.5 Free Paper Model Download