273. That's How PDB Paths Help to Uncover Malicious Files

Hello everyone!

Let's look at a bit less common way to identify suspicious and malicious software - analyzing program database (PDB) paths.

In some cases the adversary really wants us to understand the goals and find the malware. Let's look at an example. A Bookworm malware sample. According to the report, it has the following PDB path:

C:\Users\hack\Documents\WhiteFile\LTDIS13n\Release\LTDIS13n.pdb

Yes, "hack". So, if your EDR solution collects information about PDB paths, this may be a good detection opportunity:

event_type: "processcreatewin"

AND

proc_file_pdb_path: "hack"

Also, make sure to check the report to look at how to use The Unit 42 Attribution Framework in practice.

See you tomorrow!

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