Many types of cubes, including the Rubik's brand DIY cube, are made with white plastic. Also, the puzzle may have been restickered and the logo was removed. Because of these things, I can't tell what kind of cube it is. Showing pictures of the individual pieces, such as a corner and an edge, might help. The following image shows a white Rubik's DIY cube.
Even if the pieces look like that, that may not indicate what brand it is. The pieces of some 3x3s look similar.