PyMISP/tests/test_mispevent.py

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import unittest
import json
from io import BytesIO
import glob
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import hashlib
from datetime import date, datetime
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from pymisp import (MISPEvent, MISPSighting, MISPTag, MISPOrganisation,
MISPObject)
from pymisp.exceptions import InvalidMISPObject
from pymisp.tools import GitVulnFinderObject
class TestMISPEvent(unittest.TestCase):
def setUp(self):
self.maxDiff = None
self.mispevent = MISPEvent()
def init_event(self):
self.mispevent.info = 'This is a test'
self.mispevent.distribution = 1
self.mispevent.threat_level_id = 1
self.mispevent.analysis = 1
self.mispevent.set_date("2017-12-31") # test the set date method
def test_simple(self):
with open('tests/mispevent_testfiles/simple.json', 'r') as f:
ref_json = json.load(f)
del self.mispevent.uuid
self.assertEqual(self.mispevent.to_json(sort_keys=True, indent=2), json.dumps(ref_json, sort_keys=True, indent=2))
def test_event(self):
self.init_event()
self.mispevent.publish()
with open('tests/mispevent_testfiles/event.json', 'r') as f:
ref_json = json.load(f)
del self.mispevent.uuid
self.assertEqual(self.mispevent.to_json(sort_keys=True, indent=2), json.dumps(ref_json, sort_keys=True, indent=2))
def test_loadfile(self):
self.mispevent.load_file('tests/mispevent_testfiles/event.json')
with open('tests/mispevent_testfiles/event.json', 'r') as f:
ref_json = json.load(f)
del self.mispevent.uuid
self.assertEqual(self.mispevent.to_json(sort_keys=True, indent=2), json.dumps(ref_json, sort_keys=True, indent=2))
def test_loadfile_validate(self):
misp_event = MISPEvent()
misp_event.load_file('tests/mispevent_testfiles/event.json', validate=True)
def test_loadfile_validate_strict(self):
misp_event = MISPEvent(strict_validation=True)
misp_event.load_file('tests/mispevent_testfiles/event.json', validate=True)
def test_event_tag(self):
self.init_event()
self.mispevent.add_tag('bar')
self.mispevent.add_tag(name='baz')
new_tag = MISPTag()
new_tag.from_dict(name='foo')
self.mispevent.add_tag(new_tag)
with open('tests/mispevent_testfiles/event_tags.json', 'r') as f:
ref_json = json.load(f)
del self.mispevent.uuid
self.assertEqual(self.mispevent.to_json(sort_keys=True, indent=2), json.dumps(ref_json, sort_keys=True, indent=2))
def test_attribute(self):
self.init_event()
a = self.mispevent.add_attribute('filename', 'bar.exe')
del a.uuid
a = self.mispevent.add_attribute_tag('osint', 'bar.exe')
attr_tags = self.mispevent.get_attribute_tag('bar.exe')
self.assertEqual(self.mispevent.attributes[0].tags[0].name, 'osint')
self.assertEqual(attr_tags[0].name, 'osint')
with open('tests/mispevent_testfiles/attribute.json', 'r') as f:
ref_json = json.load(f)
del self.mispevent.uuid
self.assertEqual(self.mispevent.to_json(sort_keys=True, indent=2), json.dumps(ref_json, sort_keys=True, indent=2))
# Fake setting an attribute ID for testing
self.mispevent.attributes[0].id = 42
self.mispevent.delete_attribute(42)
with open('tests/mispevent_testfiles/attribute_del.json', 'r') as f:
ref_json = json.load(f)
self.assertEqual(self.mispevent.to_json(sort_keys=True, indent=2), json.dumps(ref_json, sort_keys=True, indent=2))
def test_to_dict_json_format(self):
misp_event = MISPEvent()
av_signature_object = MISPObject("av-signature")
av_signature_object.add_attribute("signature", "EICAR")
av_signature_object.add_attribute("software", "ClamAv")
misp_event.add_object(av_signature_object)
self.assertEqual(json.loads(misp_event.to_json()), misp_event.to_dict(json_format=True))
def test_object_tag(self):
self.mispevent.add_object(name='file', strict=True)
a = self.mispevent.objects[0].add_attribute('filename', value='')
self.assertEqual(a, None)
a = self.mispevent.objects[0].add_attribute('filename', value=None)
self.assertEqual(a, None)
a = self.mispevent.objects[0].add_attribute('filename', value='bar', Tag=[{'name': 'blah'}])
del a.uuid
self.assertEqual(self.mispevent.objects[0].attributes[0].tags[0].name, 'blah')
self.assertTrue(self.mispevent.objects[0].has_attributes_by_relation(['filename']))
self.assertEqual(len(self.mispevent.objects[0].get_attributes_by_relation('filename')), 1)
self.mispevent.add_object(name='url', strict=True)
a = self.mispevent.objects[1].add_attribute('url', value='https://www.circl.lu')
del a.uuid
self.mispevent.objects[0].uuid = 'a'
self.mispevent.objects[1].uuid = 'b'
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reference = self.mispevent.objects[0].add_reference(self.mispevent.objects[1], 'baz', comment='foo')
del reference.uuid
self.assertEqual(self.mispevent.objects[0].references[0].relationship_type, 'baz')
with open('tests/mispevent_testfiles/event_obj_attr_tag.json', 'r') as f:
ref_json = json.load(f)
del self.mispevent.uuid
self.assertEqual(self.mispevent.to_json(sort_keys=True, indent=2), json.dumps(ref_json, sort_keys=True, indent=2))
@unittest.skip("Not supported on MISP: https://github.com/MISP/MISP/issues/2638 - https://github.com/MISP/PyMISP/issues/168")
def test_object_level_tag(self):
self.mispevent.add_object(name='file', strict=True)
self.mispevent.objects[0].add_attribute('filename', value='bar')
self.mispevent.objects[0].add_tag('osint')
self.mispevent.objects[0].uuid = 'a'
with open('tests/mispevent_testfiles/event_obj_tag.json', 'r') as f:
ref_json = json.load(f)
self.assertEqual(self.mispevent.to_json(sort_keys=True, indent=2), json.dumps(ref_json, sort_keys=True, indent=2))
def test_malware(self):
with open('tests/mispevent_testfiles/simple.json', 'rb') as f:
pseudofile = BytesIO(f.read())
self.init_event()
a = self.mispevent.add_attribute('malware-sample', 'bar.exe', data=pseudofile)
del a.uuid
attribute = self.mispevent.attributes[0]
self.assertEqual(attribute.malware_binary, pseudofile)
with open('tests/mispevent_testfiles/malware.json', 'r') as f:
ref_json = json.load(f)
del self.mispevent.uuid
self.assertEqual(self.mispevent.to_json(sort_keys=True, indent=2), json.dumps(ref_json, sort_keys=True, indent=2))
def test_existing_malware(self):
self.mispevent.load_file('tests/mispevent_testfiles/malware_exist.json')
with open('tests/mispevent_testfiles/simple.json', 'rb') as f:
pseudofile = BytesIO(f.read())
self.assertEqual(
self.mispevent.objects[0].get_attributes_by_relation('malware-sample')[0].malware_binary.read(),
pseudofile.read())
def test_sighting(self):
sighting = MISPSighting()
sighting.from_dict(value='1', type='bar', timestamp=11111111)
with open('tests/mispevent_testfiles/sighting.json', 'r') as f:
ref_json = json.load(f)
self.assertEqual(sighting.to_json(sort_keys=True, indent=2), json.dumps(ref_json, sort_keys=True, indent=2))
def test_existing_event(self):
self.mispevent.load_file('tests/mispevent_testfiles/existing_event.json')
with open('tests/mispevent_testfiles/existing_event.json', 'r') as f:
ref_json = json.load(f)
self.assertEqual(self.mispevent.to_json(sort_keys=True, indent=2), json.dumps(ref_json, sort_keys=True, indent=2))
def test_shadow_attributes_existing(self):
self.mispevent.load_file('tests/mispevent_testfiles/shadow.json')
with open('tests/mispevent_testfiles/shadow.json', 'r') as f:
ref_json = json.load(f)
self.assertEqual(self.mispevent.to_json(sort_keys=True, indent=2), json.dumps(ref_json, sort_keys=True, indent=2))
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@unittest.skip("Not supported on MISP.")
def test_shadow_attributes(self):
self.init_event()
p = self.mispevent.add_proposal(type='filename', value='baz.jpg')
del p.uuid
a = self.mispevent.add_attribute('filename', 'bar.exe')
del a.uuid
p = self.mispevent.attributes[0].add_proposal(type='filename', value='bar.pdf')
del p.uuid
with open('tests/mispevent_testfiles/proposals.json', 'r') as f:
ref_json = json.load(f)
self.assertEqual(self.mispevent.to_json(sort_keys=True, indent=2), json.dumps(ref_json, sort_keys=True, indent=2))
def test_default_attributes(self):
self.mispevent.add_object(name='file', strict=True)
a = self.mispevent.objects[0].add_attribute('filename', value='bar', Tag=[{'name': 'blah'}])
del a.uuid
a = self.mispevent.objects[0].add_attribute('pattern-in-file', value='baz')
self.assertEqual(a.category, 'Artifacts dropped')
del a.uuid
self.mispevent.add_object(name='file', strict=False, default_attributes_parameters=self.mispevent.objects[0].attributes[0])
a = self.mispevent.objects[1].add_attribute('filename', value='baz')
del a.uuid
self.mispevent.objects[0].uuid = 'a'
self.mispevent.objects[1].uuid = 'b'
with open('tests/mispevent_testfiles/event_obj_def_param.json', 'r') as f:
ref_json = json.load(f)
del self.mispevent.uuid
self.assertEqual(self.mispevent.to_json(sort_keys=True, indent=2), json.dumps(ref_json, sort_keys=True, indent=2))
def test_obj_default_values(self):
self.init_event()
self.mispevent.add_object(name='whois', strict=True)
a = self.mispevent.objects[0].add_attribute('registrar', value='registar.example.com')
del a.uuid
a = self.mispevent.objects[0].add_attribute('domain', value='domain.example.com')
del a.uuid
a = self.mispevent.objects[0].add_attribute('nameserver', value='ns1.example.com')
del a.uuid
a = self.mispevent.objects[0].add_attribute('nameserver', value='ns2.example.com', disable_correlation=False, to_ids=True, category='External analysis')
del a.uuid
self.mispevent.objects[0].uuid = 'a'
with open('tests/mispevent_testfiles/def_param.json', 'r') as f:
ref_json = json.load(f)
del self.mispevent.uuid
self.assertEqual(self.mispevent.to_json(sort_keys=True, indent=2), json.dumps(ref_json, sort_keys=True, indent=2))
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def test_obj_references_export(self):
self.init_event()
obj1 = MISPObject(name="file")
obj2 = MISPObject(name="url", standalone=False)
obj1.add_reference(obj2, "downloads")
obj2.add_reference(obj1, "downloaded-by")
self.assertFalse("ObjectReference" in obj1.jsonable())
self.assertTrue("ObjectReference" in obj2.jsonable())
self.mispevent.add_object(obj1)
obj2.standalone = True
self.assertTrue("ObjectReference" in obj1.jsonable())
self.assertFalse("ObjectReference" in obj2.jsonable())
def test_event_not_edited(self):
self.mispevent.load_file('tests/mispevent_testfiles/existing_event.json')
self.assertFalse(self.mispevent.edited)
def test_event_edited(self):
self.mispevent.load_file('tests/mispevent_testfiles/existing_event.json')
self.mispevent.info = 'blah'
self.assertTrue(self.mispevent.edited)
def test_event_tag_edited(self):
self.mispevent.load_file('tests/mispevent_testfiles/existing_event.json')
self.assertFalse(self.mispevent.edited)
self.mispevent.add_tag('foo')
self.assertTrue(self.mispevent.edited)
def test_event_attribute_edited(self):
self.mispevent.load_file('tests/mispevent_testfiles/existing_event.json')
self.mispevent.attributes[0].value = 'blah'
self.assertTrue(self.mispevent.attributes[0].edited)
self.assertFalse(self.mispevent.attributes[1].edited)
self.assertTrue(self.mispevent.edited)
def test_event_attribute_tag_edited(self):
self.mispevent.load_file('tests/mispevent_testfiles/existing_event.json')
self.assertFalse(self.mispevent.edited)
self.mispevent.attributes[0].tags[0].name = 'blah'
self.assertTrue(self.mispevent.attributes[0].tags[0].edited)
self.assertFalse(self.mispevent.attributes[0].tags[1].edited)
self.assertTrue(self.mispevent.attributes[0].edited)
self.assertTrue(self.mispevent.edited)
def test_event_attribute_tag_edited_second(self):
self.mispevent.load_file('tests/mispevent_testfiles/existing_event.json')
self.assertFalse(self.mispevent.edited)
self.mispevent.attributes[0].add_tag(name='blah')
self.assertTrue(self.mispevent.attributes[0].edited)
self.assertTrue(self.mispevent.edited)
def test_event_object_edited(self):
self.mispevent.load_file('tests/mispevent_testfiles/existing_event.json')
self.assertFalse(self.mispevent.edited)
self.mispevent.objects[0].comment = 'blah'
self.assertTrue(self.mispevent.objects[0].edited)
self.assertFalse(self.mispevent.objects[1].edited)
self.assertTrue(self.mispevent.edited)
def test_event_object_attribute_edited(self):
self.mispevent.load_file('tests/mispevent_testfiles/existing_event.json')
self.assertFalse(self.mispevent.edited)
self.mispevent.objects[0].attributes[0].comment = 'blah'
self.assertTrue(self.mispevent.objects[0].attributes[0].edited)
self.assertTrue(self.mispevent.objects[0].edited)
self.assertTrue(self.mispevent.edited)
def test_event_object_attribute_edited_tag(self):
self.mispevent.load_file('tests/mispevent_testfiles/existing_event.json')
self.assertFalse(self.mispevent.edited)
self.mispevent.objects[0].attributes[0].add_tag('blah')
self.assertTrue(self.mispevent.objects[0].attributes[0].edited)
self.assertTrue(self.mispevent.objects[0].edited)
self.assertTrue(self.mispevent.edited)
with open('tests/mispevent_testfiles/existing_event_edited.json', 'r') as f:
ref_json = json.load(f)
self.assertEqual(self.mispevent.to_json(sort_keys=True, indent=2), json.dumps(ref_json, sort_keys=True, indent=2))
def test_obj_by_id(self):
self.mispevent.load_file('tests/mispevent_testfiles/existing_event.json')
misp_obj = self.mispevent.get_object_by_id(1556)
self.assertEqual(misp_obj.uuid, '5a3cd604-e11c-4de5-bbbf-c170950d210f')
def test_userdefined_object_custom_template(self):
self.init_event()
with open('tests/mispevent_testfiles/test_object_template/definition.json') as f:
template = json.load(f)
self.mispevent.add_object(name='test_object_template', strict=True,
misp_objects_template_custom=template)
with self.assertRaises(InvalidMISPObject) as e:
# Fail on required
self.mispevent.to_json(sort_keys=True, indent=2)
self.assertEqual(e.exception.message, '{\'member3\'} are required.')
a = self.mispevent.objects[0].add_attribute('member3', value='foo')
del a.uuid
with self.assertRaises(InvalidMISPObject) as e:
# Fail on requiredOneOf
self.mispevent.to_json(sort_keys=True, indent=2)
self.assertEqual(e.exception.message, 'At least one of the following attributes is required: member1, member2')
a = self.mispevent.objects[0].add_attribute('member1', value='bar')
del a.uuid
a = self.mispevent.objects[0].add_attribute('member1', value='baz')
del a.uuid
with self.assertRaises(InvalidMISPObject) as e:
# member1 is not a multiple
self.mispevent.to_json(sort_keys=True, indent=2)
self.assertEqual(e.exception.message, 'Multiple occurrences of member1 is not allowed')
self.mispevent.objects[0].attributes = self.mispevent.objects[0].attributes[:2]
self.mispevent.objects[0].uuid = 'a'
with open('tests/mispevent_testfiles/misp_custom_obj.json', 'r') as f:
ref_json = json.load(f)
del self.mispevent.uuid
self.assertEqual(self.mispevent.to_json(sort_keys=True, indent=2), json.dumps(ref_json, sort_keys=True, indent=2))
def test_userdefined_object_custom_dir(self):
self.init_event()
self.mispevent.add_object(name='test_object_template', strict=True, misp_objects_path_custom='tests/mispevent_testfiles')
with self.assertRaises(InvalidMISPObject) as e:
# Fail on required
self.mispevent.to_json(sort_keys=True, indent=2)
self.assertEqual(e.exception.message, '{\'member3\'} are required.')
a = self.mispevent.objects[0].add_attribute('member3', value='foo')
del a.uuid
with self.assertRaises(InvalidMISPObject) as e:
# Fail on requiredOneOf
self.mispevent.to_json(sort_keys=True, indent=2)
self.assertEqual(e.exception.message, 'At least one of the following attributes is required: member1, member2')
a = self.mispevent.objects[0].add_attribute('member1', value='bar')
del a.uuid
a = self.mispevent.objects[0].add_attribute('member1', value='baz')
del a.uuid
with self.assertRaises(InvalidMISPObject) as e:
# member1 is not a multiple
self.mispevent.to_json(sort_keys=True, indent=2)
self.assertEqual(e.exception.message, 'Multiple occurrences of member1 is not allowed')
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self.mispevent.objects[0].attributes = self.mispevent.objects[0].attributes[:2]
self.mispevent.objects[0].uuid = 'a'
with open('tests/mispevent_testfiles/misp_custom_obj.json', 'r') as f:
ref_json = json.load(f)
del self.mispevent.uuid
self.assertEqual(self.mispevent.to_json(sort_keys=True, indent=2), json.dumps(ref_json, sort_keys=True, indent=2))
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def test_first_last_seen(self):
me = MISPEvent()
me.info = 'Test First and Last Seen'
me.date = '2020.01.12'
self.assertEqual(me.date.day, 12)
me.add_attribute('ip-dst', '8.8.8.8', first_seen='06-21-1998', last_seen=1580213607.469571)
self.assertEqual(me.attributes[0].first_seen.year, 1998)
self.assertEqual(me.attributes[0].last_seen.year, 2020)
now = datetime.now().astimezone()
me.attributes[0].last_seen = now
today = date.today()
me.attributes[0].first_seen = today
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self.assertEqual(me.attributes[0].first_seen.year, today.year)
self.assertEqual(me.attributes[0].last_seen, now)
def test_feed(self):
me = MISPEvent()
me.info = 'Test feed'
org = MISPOrganisation()
org.name = 'TestOrg'
org.uuid = '123478'
me.Orgc = org
me.add_attribute('ip-dst', '8.8.8.8')
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obj = me.add_object(name='file')
obj.add_attributes('filename', *['foo.exe', 'bar.exe'])
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h = hashlib.new('md5')
h.update(b'8.8.8.8')
hash_attr_val = h.hexdigest()
feed = me.to_feed(with_meta=True)
self.assertEqual(feed['Event']['_hashes'][0], hash_attr_val)
self.assertEqual(feed['Event']['_manifest'][me.uuid]['info'], 'Test feed')
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self.assertEqual(len(feed['Event']['Object'][0]['Attribute']), 2)
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def test_object_templates(self):
me = MISPEvent()
for template in glob.glob(str(me.misp_objects_path / '*' / 'definition.json')):
with open(template) as f:
t_json = json.load(f)
if 'requiredOneOf' in t_json:
obj_relations = set(t_json['attributes'].keys())
subset = set(t_json['requiredOneOf']).issubset(obj_relations)
self.assertTrue(subset, f'{t_json["name"]}')
if 'required' in t_json:
obj_relations = set(t_json['attributes'].keys())
subset = set(t_json['required']).issubset(obj_relations)
self.assertTrue(subset, f'{t_json["name"]}')
for obj_relation, entry in t_json['attributes'].items():
self.assertTrue(entry['misp-attribute'] in me.describe_types['types'], f'Missing type: {entry["misp-attribute"]}')
if 'categories' in entry:
subset = set(entry['categories']).issubset(me.describe_types['categories'])
self.assertTrue(subset, f'{t_json["name"]} - {obj_relation}')
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def test_git_vuln_finder(self):
with open('tests/git-vuln-finder-quagga.json') as f:
dump = json.load(f)
for vuln in dump.values():
author = vuln['author']
vuln_finder = GitVulnFinderObject(vuln)
self.assertEqual(vuln_finder.get_attributes_by_relation('author')[0].value, author)
if __name__ == '__main__':
unittest.main()