kali64 install ferret
ferret is not 64 bit
32-bit can be installed
1. Add support for 32-bit
dpkg --add-architecture i386
2. Update
apt-get clean && apt-get update && apt-get upgrade -y && apt-get dist-upgrade -y
3. Install ferret
sudo aptitude install ferret-sidejack:i386
-- apt-get install aptitude