Hydra's Legacy: How $186 Million from Darknet Trade Was Laundered Through Kraken and Moved to Exchanges
When German law enforcement seized Hydra's servers in April 2022, the largest Russian-language darknet marketplace ceased to exist. But the vacuum in the black market did not last long—within a few months, a new player emerged on the scene, Kraken (not to be confused with the cryptocurrency exchange of the same name), which not only filled the vacated niche but built a full-fledged shadow financial empire.
Kraken's Rise: From Hydra's Ruins to Leadership
Kraken Market is a decentralized coordinator platform operating through Tor. Unlike Hydra's vertical structure, here hundreds of independent shops handle logistics and procurement themselves, while the administration only provides the interface, catalog, and settlement system. This architecture makes the platform nearly invulnerable to targeted strikes—the arrest of one seller does not affect the system's overall operation.
The scale is impressive: by 2025, Kraken had become the leader of the Russian-language darknet segment, and in 2024, approximately $737 million flowed through its infrastructure. For comparison, this is comparable to the GDP of small states. However, my analysis shows that the real figures could be significantly higher, given the complexity of tracking all flows.
Three Laundering Routes: How the Blockchain Link Is Broken
My research has identified three main money laundering schemes, each of which obscures traces in its own way. The total confirmed volume is $186.5 million, and this is only the lower bound, as a significant portion of operations remains beyond the view of analysts.
The first scheme ($72.55 million) uses the Bridgers bridge to convert bitcoins into BNB Smart Chain. Funds are collected into standard batches of ~10 BTC, held for several days to obscure traces, then split and converted into USDT/USDC stablecoins through exchange services. The final recipients are exchange wallets at HTX, MEXC, KuCoin, and Gate.io.
The second scheme ($74.19 million) is the most interesting. Through the Avalanche Bitcoin Bridge, funds are converted into BTC.b, exchanged for USDT via LFJ, and withdrawn to HTX. It is here that a connection to Hydra was discovered: money left over from the closed platform, years later, followed the same laundering route. This is not a coincidence but a clear sign that the financial flows of both platforms are managed by the same team.
The third scheme ($39.75 million) involves Kraken's built-in exchangers, which convert internal bitcoins into USDT on TRON for a fee. The speed of operations is impressive: in some cases, the exchange took less than three minutes.
Analyst's Conclusions
Kraken has built a multi-level laundering system that successfully breaks on-chain links. But the most important discovery is the confirmed connection to Hydra. The coincidence of complete money processing routes, rather than individual addresses, virtually rules out chance. We are likely witnessing continuity not only of market share but also of financial infrastructure. For law enforcement, this is a signal: the fight should target not individual platforms but entire laundering ecosystems that outlive their operators.