_        _______           _______  _          _______ 
( \      (  ____ \|\     /|(  ____ \( \        / ___   )
| (      | (    \/| )   ( || (    \/| (        \/   )  |
| |      | (__    | |   | || (__    | |            /   )
| |      |  __)   ( (   ) )|  __)   | |          _/   / 
| |      | (       \ \_/ / | (      | |         /   _/  
| (____/\| (____/\  \   /  | (____/\| (____/\  (   (__/\
(_______/(_______/   \_/   (_______/(_______/  \_______/

You still need a hint? Here it is...

Hint 4
Use cp command to get an object.
Get the object and look inside it.


You got all hints. The task is easy now. Just read the treasure2 file.
Get the secret code, and use
https://s3game-level3.s3.us-east-2.amazonaws.com/level3-<THE CODE>.html