If you have binary data in your input file, but you want to see or search on decoded data you have some choices:
Both options require development, and depending on your usage it might be better to choose one or the other:
The Python SDK contains examples of both
Way more details please - sample events, how you've setup log ingestion for these events, what search you're using, what you mean by blob reference, etc etc. We don't know your setup or your situation so you have to tell us if we're to stand a chance of helping you!
This is just a simple query against Active Directory. When pulling information from AD for a list of IDs, a few descriptions are coming back as binary-blob instead of the actual description within AD.