ok the 36.6 is actually a legit one.. address and balance checks out on blockchain.info AND on  bitinfocharts .. 2 deposits both in 2013, no movement since.. 2013 also coincides witht he 25000 iterations since back then bitcoin core used some really funky openssl rng approach.
hmm.. probably gonna let it run for a while..
the 75 seems also legit, its 2 addresses one with 25 and one with 50.. the 50 were deposited in 2009!! but there has been some activity (0.000547 btc?) in 2020..
both wallet load with no issues and both show full balance and take ages to import and open going through the transaction history