It sounds like you're looking for information on a specific cracked repack of Mass Effect 2 : the including all DLCs , repacked by R.G. Games (often associated with R.G. Mechanics, R.G. Catalyst, or R.G. Revenants), and labeled with "NAS" (likely a site tag or uploader group).
Would you like help identifying whether your game files match this repack, or instructions on migrating saves to the Legendary Edition? Mass Effect 2 DDE All DLCS Repack R.G Games NAS...
If you want the repack for preservation or offline archival, treat it as abandonware-adjacent, but be aware of the risks and lack of support. It sounds like you're looking for information on