During the last weeks, Yoroi’s monitoring operation intercepted some malicious emails required further attention: they were sent to a very few organizations and the contents was specifically tailored for Italian speaking targets. This messages warned the users about imminent summons against them, inviting them to read the attached lawsuit, a not so innocent looking file named “Avviso del tribunale.jar”.

https://blog.yoroi.company/research/decrypting-the-qrypter-payload/