HI ,
Check below two links i hope you will get solution;
https://www.ibm.com/community/qradar/ce/
https://kifarunix.com/how-to-install-ibm-qradar-ce-v7-3-1-on-virtualbox/
If you still feel you need some sort of IBM Qradar project support or IBM Qradar Training do reach us...
