The Bitkeep exploit that occurred on Dec. 26 used phishing websites to idiot customers into downloading faux wallets, according to a report by blockchain analytics supplier OKLink.
The report acknowledged that the attacker arrange a number of faux Bitkeep web sites which contained an APK file that appeared like model 7.2.9 of the Bitkeep pockets. When customers “up to date” their wallets by downloading the malicious file, their personal keys or seed phrases have been stolen and despatched to the attacker.
【12-26 #BitKeep Hack Occasion Abstract】
In keeping with OKLink knowledge, the bitkeep theft concerned 4 chains BSC, ETH, TRX, Polygon, OKLink included 50 hacker addresses and complete Txns quantity reached $31M.
— OKLink (@OKLink) December 26, 2022
The report didn’t say how the malicious file stole the customers’ keys in an unencrypted type. Nevertheless, it might have merely requested the customers to re-enter their seed phrases as a part of the “replace,” which the software program may have logged and despatched to the attacker.
As soon as the attacker had customers’ personal keys, they unstaked all property and drained them into 5 wallets underneath the attacker’s management. From there, they tried to money out among the funds utilizing centralised exchanges: 2 ETH and 100 USDC have been despatched to Binance, and 21 ETH have been despatched to Changenow.
The assault occurred throughout 5 completely different networks: BNB Chain, Tron, Ethereum, and Polygon, and BNB Chain bridges Biswap, Nomiswap, and Apeswap have been used to bridge among the tokens to Ethereum. In complete, over $13 million price of crypto was taken within the assault.
It isn’t but clear how the attacker satisfied customers to go to the faux web sites. The official web site for BitKeep supplied a hyperlink that despatched customers to the official Google Play Retailer web page for the app, nevertheless it doesn’t carry an APK file of the app in any respect.
The BitKeep assault was first reported by Peck Defend at 7:30 a.m. UTC. On the time, it was blamed on an “APK model hack.” This new report from OKLink means that the hacked APK got here from malicious websites, and that the developer’s official web site has not been breached.