According to CoinMeta, as reported by PeckShield, the attacker exploited manipulated prices of a nstr oracle to enable a single account to borrow approximately $3.5 million in ETH, STRK, USDC, USDT, WBTC, and DAI on the Nostra currency market, using nstr as collateral. Subsequently, the attacker transferred approximately $1.92 million of the stolen funds (2.3457 million ETH and 1.3 million DAI) across chains to Ethereum.