Quote from: N0sferatu on May 28, 2019, 11:15:30 AM

Maybe those information will help:

Last transactions from the address 37zfKL5EqsokYztEj6yrJxeJah52CgJixG were done on 2017-09-11, the day China declared to shut down all of its exchanges.

Those funds (and several others!!) lead to this address: 3DfVp3nuGyNbHgYKFrBs4L7nzsSkcdtejU

Approx. 28 BTC were then sent to a Bech32 address: bc1qzzxdvcpp9gk5lkk2zcf2hgz66ml3xasp75ty053094lz80pn52yqrju285
(At this time, the only exchange supporting withdrawals to Bech32 addresses was Coinbase!)

This happened 2018-12-14, a day Bitcoin saw a new yearly low.

~~So i guess, either Coinbase or any chinese exchange is involved.~~

Edit:

I just found a connection to this address: 1N52wHoVR79PMDishab2XmRHsbekCdGquK
(Transaction from that address to above mentioned 3DfVp3nuGyNbHgYKFrBs4L7nzsSkcdtejU)

This is a hot wallet of Bittrex!

In short:

37zfKL5EqsokYztEj6yrJxeJah52CgJixG and
1N52wHoVR79PMDishab2XmRHsbekCdGquK (<<< Bittrex Hot wallet)
sent funds to
3DfVp3nuGyNbHgYKFrBs4L7nzsSkcdtejU]3DfVp3nuGyNbHgYKFrBs4L7nzsSkcdtejU
and later to Bech32 address
bc1qzzxdvcpp9gk5lkk2zcf2hgz66ml3xasp75ty053094lz80pn52yqrju285

Thanks for the deep look, i followed your thoughts and i think that you are right and that the wallet is somehow related to Bittrex's hot wallet..
How to check even further if it is really the right answer? is it an old wallet or what?
I also think that you should be rewarded the 0.01 Btc, well done mate.