There are several methods to store the your data into Object Variable in SSIS. (See: SSIS - Mapping Full Resultset with Execute SQL Task to Object Variable)
The second method is by Dataflow Task and a Recordset Destination.

1. Drag and Drop Dataflow Task to Control Flow



2. Create a Object Variable


3. Drag and drop a Datasource


4.Drag and drop a RecordSet Destination and Map object variable


Now you are done with getting values to object variable.