What is this mystery object in the Necho Crater on the Moon?

An image taken by the lunar reconnaissance orbiter camera shows the Necho crater on the Moon.

Necho is a Copernican-aged, 30-km diameter crater on the dark side of the Moon.

StreetCap1 who has analyzed the image found a strange massive object in the crater. It looks like it is an artificially made structure. It has a rectangular lit opening and ornate design on top of it.

But what is this mystery object, could it be a statue like the Great Sphinx of Giza in Egypt?

Is it coincidence that the crater with its complex structure and morphology is named after an Egyptian pharaoh?

  Link Image: http://lroc.sese.asu.edu/posts/413