money-ware

https://play.picoctf.org/practice/challenge/357?page=10

• search 1Mz7153HMuxXTuR2R1t78mGSdzaAtNbBWX up

• leads you to some news articles such as https://www.cnbc.com/2017/06/28/ransomware-cyberattack-petya-bitcoin-payment.html

• click and learn it is Petya

• picoCTF{Petya}