A quick look at the chain:
Conclusion: It comes from ancient times, but the possibility of Satoshi Nakamoto's revival is basically ruled out.
-The 50 bitcoins in this super long dormant address come from the 2247 block height reward mined on January 30, 2009.
https://btc.com/btc/transaction/77fe7a6eb5e98bf533cafb46b3b6863f0f1de629fc7f2c9726110e2a38615ba0
-For comparison: The first Bitcoin block was mined on January 9th, and by January 30th, people other than Satoshi Nakamoto were already mining.
- According to statistics from http://Satoshiblocks.info, the block at height 2247 did not come from the "Genesis miner (suspected to be Satoshi Nakamoto, temporarily called Patoshi)".