I don't know how accurate any of this is, or how supercomputers or Bitcoin have changed in the past half decade, or how seriously such comparisons can or should be taken, but:

    The suspects had tried to use one of Russia's
    most powerful supercomputers to mine Bitcoins

4-5 years ago:

    the entire bitcoin network is roughly 256 times
    faster than all the top 500 supercomputers around
    the globe combined.

https://www.forbes.com/sites/reuvencohen/2013/11/28/global-b...

What hashrate is this supercomputer giving? want to calculate the profitability https://www.coingecko.com/en/coins/bitcoin/mining_calculator

Sounds like they got caught almost imidately after connecting it to the internet so propably not much.