Ace is a proprietary data compression archive file format developed by Marcel Lemke. It was very popular around 19992001, and at the time provided slightly better compression than RAR. Inside the Ace file is a Windows Executable file: “Sha256”; “Aega” is a compressed archive file with a Hash Hash: 5f20238b7d7d7684b10df695ae3ee56dd1e656e692fcdda30255c218f81d7da39 [1]”]
Source: http://sanesecurity.blogspot.com/2015/03/saleem-nadapuram-invoice.html