Fetched 27.1 MB in 1min 30s (300 kB/s)
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/trusty-security/main/source/Sources  Hash Sum mismatch

W: Failed to fetch http://http.kali.org/kali/dists/sana/main/binary-amd64/Packages  Hash Sum mismatch

W: Failed to fetch http://http.kali.org/kali/dists/sana/main/binary-i386/Packages  Hash Sum mismatch

E: Some index files failed to download. They have been ignored, or old ones used instead.