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fix: Handling case of multiple processes in behavior field

- Also starting parsing file activities
pull/304/head
chrisr3d 3 years ago
parent
commit
067b229224
No known key found for this signature in database GPG Key ID: 6BBED1B63A6D639F
  1. 29
      misp_modules/modules/import_mod/joe_import.py

29
misp_modules/modules/import_mod/joe_import.py

@ -1,7 +1,7 @@
# -*- coding: utf-8 -*-
from collections import defaultdict
from datetime import datetime
from pymisp import MISPEvent, MISPObject
from pymisp import MISPAttribute, MISPEvent, MISPObject
import json
import base64
@ -29,6 +29,8 @@ pe_object_mapping = {'CompanyName': 'company-name', 'FileDescription': 'file-des
process_object_fields = {'cmdline': 'command-line', 'name': 'name',
'parentpid': 'parent-pid', 'pid': 'pid',
'path': 'current-directory'}
process_references_mapping = {'fileCreated': 'creates', 'fileDeleted': 'deletes',
'fileMoved': 'moves', 'fileRead': 'reads', 'fileWritten': 'writes'}
section_object_mapping = {'characteristics': ('text', 'characteristic'),
'entropy': ('float', 'entropy'),
'name': ('text', 'name'), 'rawaddr': ('hex', 'offset'),
@ -67,15 +69,22 @@ class JoeParser():
network = self.data['behavior']['network']
def parse_behavior_system(self):
processes = self.data['behavior']['system']['processes']['process'][0]
general = processes['general']
process_object = MISPObject('process')
for feature, relation in process_object_fields.items():
process_object.add_attribute(relation, **{'type': 'text', 'value': general[feature]})
start_time = datetime.strptime('{} {}'.format(general['date'], general['time']), '%d/%m/%Y %H:%M:%S')
process_object.add_attribute('start-time', **{'type': 'datetime', 'value': start_time})
self.misp_event.add_object(**process_object)
self.references[self.fileinfo_uuid].append({'idref': process_object.uuid, 'relationship': 'calls'})
for process in self.data['behavior']['system']['processes']['process']:
general = process['general']
process_object = MISPObject('process')
for feature, relation in process_object_fields.items():
process_object.add_attribute(relation, **{'type': 'text', 'value': general[feature]})
start_time = datetime.strptime('{} {}'.format(general['date'], general['time']), '%d/%m/%Y %H:%M:%S')
process_object.add_attribute('start-time', **{'type': 'datetime', 'value': start_time})
for feature, files in process['fileactivities'].items():
if files:
for call in files['call']:
file_attribute = MISPAttribute()
file_attribute.from_dict(**{'type': 'filename', 'value': call['path']})
process_object.add_reference(file_attribute.uuid, process_references_mapping[feature])
self.misp_event.add_attribute(**file_attribute)
self.misp_event.add_object(**process_object)
self.references[self.fileinfo_uuid].append({'idref': process_object.uuid, 'relationship': 'calls'})
def parse_fileinfo(self):
fileinfo = self.data['fileinfo']

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