Deceased's bank account question

My mom passed recently without a will. She had basically no assets (she only received social security and I paid for most everything), but she does have a bank account with maybe $500 in it. I am not on her account (we didn't want my money to be attributed to her), but I do have her online banking credentials. I'm considering just transferring all of the remaining funds to my account. Of course I have no interest in getting in trouble (especially since I work for the bank). Any thoughts are welcome. I am not in need of the money. I guess I could just let it go through probate, however that works.

Colorado, USA.