How I tracked the Darkside bitcoins to Binance. Or, how the FBI *did not* hack Bitcoin
UPDATE: I have found more information about the Darkside addresses which I have published on my blog: https://notatether.com/bitcoin/gotcha-darkside-how-i-traced-the-stolen-bitcoins/
I think I have traced the DarkSide address myself since nobody's telling us which one this is.
Elliptic (the forensics company that ID'd the darkside wallet) said that Colonial Pipeline paid 75
BTC to the hackers on May 8 (
source). And it's got to be a 1-input 2-output transaction because do you really think the victims know how to do Pay-To-Many or CoinJoin?
If we filter the transactions on Blockchair based on this info, we get these results:
https://blockchair.com/bitcoin/transactions?s=output_total(desc)&q=time(2021-05-08),output_total(7400000000..7600000000)#There is only one transaction in that range that matches these details, and it's fc78327d4e46dac01dc313067b1ac7f274cdb3a07ea9f28f6f71473145f1b264, happened on 2021-05-08 17:47:50. On walletexplorer.com the corresponding "wallet" is
https://www.walletexplorer.com/wallet/b68f605feedee27e.
Also they had to have bought the bitcoins from an exchange, because there's no way the address "feeding" it could also have near exactly 75
BTC and another feeding address having a dust output to it that looks like covering a transaction fee.
The address must have been generated by the hackers, because it has only been used 3 times. Its last transaction was made on 18:21 on the same day, to an exchange, identified by this wallet:
https://www.walletexplorer.com/wallet/061e93d18ff39503. This is the deposit address of some exchange. But which one?
Reporters are mentioning that the FBI seized the entire contents of the darkside wallet which had about 63.7
BTC. So all we have to do is find the address where the exchange sends 63.7
BTC to internally.
We don't have to go very far down the page to see that it goes to this wallet:
https://www.walletexplorer.com/wallet/123085fff68ee703 , on 2021-05-09 16:33:54. It would stay dormant until May 28, when its moved to yet another wallet that happens to have two transactions yesterday, clearing the entire balance.
It occurs just before the first news reports announcing the FBI recovered the DarkSide ransom money so there is a strong correlation that the FBI seized the bitcoins from that address.
But how?Reports are claiming that the "hacker wallet" 061e93d18ff39503 has received 57 transactions to the tune of several million dollars. But I think it's merely an exchange's deposit address or an online custodial wallet's address.
I strongly doubt the FBI found the private keys to any of these addresses. The public keys can easily be found because they are revealed whenever an address is spent from. Therefore, the likely theory is that this is an exchange address, and the FBI sent a warrant to the exchange to hand over those 63.7 bitcoins. But the question is, which exchange?
If walletexplorer.com can identify other connected addresses to the 061e93d18ff39503 deposit wallet, then we can conclude that this wallet also belongs to that exchange.
Let's browse the wallets in the following order:
- wallet 061e93d18ff39503 makes THREE transactions to
https://www.walletexplorer.com/wallet/1b5c02f022e719e6 all with the same timestamp (2021-04-29 14:16:03)
- The 1b5c02f022e719e6 wallet received a transaction from wallet
https://www.walletexplorer.com/wallet/fd785af9bf3ec6fd on May 5 (before the ransom payment). Both of these wallets happen to receive transactions from a wallet ID'd from Binance:
https://www.walletexplorer.com/wallet/Binance.com- At this point it is getting suspicious that these are Binance-controlled wallets, but we still need more evidence. Tracing the fd785af9bf3ec6fd
transaction, it sends money to
https://www.walletexplorer.com/wallet/5acc6b7de22bf5b1 at the same transaction as to the 1b5c02f022e719e6 wallet.
- This wallet 5acc6b7de22bf5b1 also makes two transactions, one to
https://www.walletexplorer.com/wallet/00000e6843401c9c and another to
https://www.walletexplorer.com/wallet/0000255d26958dc3, on the same day: May 5. Both wallets have a heavy transaction frequency and history, with one of them frequently sending transactions to the Binance.com wallet, while the other receives transactions from the Binance.com wallet.
Since only an exchange would use an address that many times, and both have links to the Binance.com address, I think it's safe to conclude that the Darkside money was stored on
Binance.
That means the FBI served Binance an order to turn in the bitcoins, which also means that the
FBI did not hack bitcoin.
So please stop repeating this nonsense that FBI hacked bitcoin and private keys to get the ransom money, they did not get the private keys in the first place.