Lazarus Group was behind Bybit's $1.5 billion hack on Friday, Arkham Intelligence said, citing ZackXBT.
The week's uptrend was quickly upended by the hack at crypto exchange Bybit.
The agency has been plagued with procedural and organizational issues for years.
The Securities and Exchange Commission blocked staking when crypto exchange-traded funds were granted, but the lawmakers suggest the SEC may have been off-base.
Bybit CEO has said that the exchange is solvent and withdrawals remain open.
It will mark the first time that Costa Ricans will have access to any type of crypto investment product through the country's banking system.
The move happened as crypto exchange Bybit saw a sudden $1.4 billion worth of ETH outflow.
A portion of staked ether is currently being liquidated on decentralized exchanges.
The move is meant to help lure instituional investors and improve market transparency.
The agency's withdrawal of the lawsuit could boost crypto prices, marking a milestone in U.S. regulatory oversight for the digital asset industry.