HermeticWiper is data and MBR Wiper that is being targeting Ukraine and is allegedly link to Russia. It intentionally cleans data on a device make it unrecoverable. It also deletes the MBR of the machine so that the operating system wont boot again.
WhisperGate is a fake ransomware targeted toward Ukrainian victims. It destroys user data and display a ransom note demanding $10000 in bitcoins.