Multisig Exploit hacker-related addresses become active and launder money

Multisig Exploit's hacker attack was the first hacker attack in ETH's history, with over 150,000 ETH stolen, worth about $30 million at the time (back in July 2017). Today it is worth nearly $450 million, and more than 80,000 ETH is still involved in the addresses starting with 0xb37647. The address has sent about 70,000 ETH to seven different addresses, each with 10,000 ETH. In recent months, these different addresses have been slowly laundering the money. One of the addresses starting with 0x5167052 has recently become active again.