Recursive Archive File Characterization (embedded) - Container

example.json

{
    "type": "package",
    "spec_version": "stix-2.0",
    "observations": [{
        "type": "observation",
        "id": "observation--4",
        "spec_version": "stix-2.0",
        "created_at": "2016-03-21T01:01:01Z",
        "observed_at": "2016-03-21T01:01:01Z",
        "objects": [{
            "id": "file-object--1",
            "type": "file-object",
            "hashes": {"md5": "C37D819D0C4C16865E9519478897D5D4"},
            "extended-properties": {"archive": {
                "file_count": 1,
                "contained_objects": [{
                    "type": "file-object",
                    "hashes": {"md5": "B4D33B0C7306351B9ED96578465C5579"},
                    "extended-properties": {"archive": {
                        "file_count": 1,
                        "contained_objects": [{
                            "type": "file-object",
                            "hashes": {"md5": "B4D33B0C7306351B9ED96578465C5579"}
                        }]
                    }}
                }]
            }}
        }]
    }]
}