Yes... the tsukumogami of a jiangshi given life by the Miracle Mallet.

That's what she is right now.

However... even if I can identify her species, there are still many questions about her "true nature".

What does it take for an object in Gensokyo to incarnate as youkai?

That is not really known for certain.

But if I had to guess, I would say the Mallet classified the lifeless jiangshi as another "tool"

and gave her the magic energy needed to turn into a tsukumogami.

Then, much later, the moment came that the wicked hermit's control over her was broken.

The conditions were finally there for her to awaken. She gained free will, and began to move.