mirror of https://github.com/MISP/misp-modules
173 lines
9.7 KiB
Python
173 lines
9.7 KiB
Python
import json, datetime, time, base64
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import xml.etree.ElementTree as ET
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from collections import defaultdict
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from pymisp import MISPEvent, MISPObject
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misperrors = {'error': 'Error'}
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moduleinfo = {'version': 1, 'author': 'Christian Studer',
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'description': 'Import from GoAML',
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'module-type': ['import']}
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moduleconfig = []
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mispattributes = {'inputSource': ['file'], 'output': ['MISP objects']}
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t_from_objects = {'nodes': ['from_person', 'from_account', 'from_entity'],
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'leaves': ['from_funds_code', 'from_country']}
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t_to_objects = {'nodes': ['to_person', 'to_account', 'to_entity'],
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'leaves': ['to_funds_code', 'to_country']}
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t_person_objects = {'nodes': ['addresses'],
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'leaves': ['first_name', 'middle_name', 'last_name', 'gender', 'title', 'mothers_name', 'birthdate',
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'passport_number', 'passport_country', 'id_number', 'birth_place', 'alias', 'nationality1']}
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t_account_objects = {'nodes': ['signatory'],
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'leaves': ['institution_name', 'institution_code', 'swift', 'branch', 'non_banking_insitution',
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'account', 'currency_code', 'account_name', 'iban', 'client_number', 'opened', 'closed',
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'personal_account_type', 'balance', 'date_balance', 'status_code', 'beneficiary',
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'beneficiary_comment', 'comments']}
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entity_objects = {'nodes': ['addresses'],
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'leaves': ['name', 'commercial_name', 'incorporation_legal_form', 'incorporation_number', 'business', 'phone']}
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goAMLobjects = {'report': {'nodes': ['reporting_person', 'location'],
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'leaves': ['rentity_id', 'submission_code', 'report_code', 'submission_date', 'currency_code_local']},
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'reporting_person': {'nodes': ['addresses'], 'leaves': ['first_name', 'middle_name', 'last_name', 'title']},
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'location': {'nodes': [], 'leaves': ['address_type', 'address', 'city', 'zip', 'country_code', 'state']},
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'transaction': {'nodes': ['t_from', 't_from_my_client', 't_to', 't_to_my_client'],
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'leaves': ['transactionnumber', 'transaction_location', 'date_transaction',
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'transmode_code', 'amount_local']},
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't_from': t_from_objects, 't_from_my_client': t_from_objects,
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't_to': t_to_objects, 't_to_my_client': t_to_objects,
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'addresses': {'nodes': ['address'], 'leaves': []},
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'address': {'nodes': [], 'leaves': ['address_type', 'address', 'city', 'zip', 'country_code', 'state']},
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'from_person': t_person_objects, 'to_person': t_person_objects, 't_person': t_person_objects,
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'from_account': t_account_objects, 'to_account': t_account_objects,
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'signatory': {'nodes': ['t_person'], 'leaves': []},
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'from_entity': entity_objects, 'to_entity': entity_objects,
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}
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t_account_mapping = {'misp_name': 'bank-account', 'institution_name': 'institution-name', 'institution_code': 'institution-code',
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'iban': 'iban', 'swift': 'swift', 'branch': 'branch', 'non_banking_institution': 'non-bank-institution',
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'account': 'account', 'currency_code': 'currency-code', 'account_name': 'account-name',
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'client_number': 'client-number', 'personal_account_type': 'personal-account-type', 'opened': 'opened',
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'closed': 'closed', 'balance': 'balance', 'status_code': 'status-code', 'beneficiary': 'beneficiary',
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'beneficiary_comment': 'beneficiary-comment', 'comments': 'comments'}
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t_person_mapping = {'misp_name': 'person', 'comments': 'text', 'first_name': 'first-name', 'middle_name': 'middle-name',
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'last_name': 'last-name', 'title': 'title', 'mothers_name': 'mothers-name', 'alias': 'alias',
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'birthdate': 'date-of-birth', 'birth_place': 'place-of-birth', 'gender': 'gender','nationality1': 'nationality',
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'passport_number': 'passport-number', 'passport_country': 'passport-country', 'ssn': 'social-security-number',
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'id_number': 'identity-card-number'}
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location_mapping = {'misp_name': 'geolocation', 'city': 'city', 'state': 'region', 'country_code': 'country', 'address': 'address',
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'zip': 'zipcode'}
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t_entity_mapping = {'misp_name': 'legal-entity', 'name': 'name', 'business': 'business', 'commercial_name': 'commercial-name',
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'phone': 'phone-number', 'incorporation_legal_form': 'legal-form', 'incorporation_number': 'registration-number'}
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goAMLmapping = {'from_account': t_account_mapping, 'to_account': t_account_mapping, 't_person': t_person_mapping,
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'from_person': t_person_mapping, 'to_person': t_person_mapping, 'reporting_person': t_person_mapping,
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'from_entity': t_entity_mapping, 'to_entity': t_entity_mapping,
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'location': location_mapping, 'address': location_mapping,
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'transaction': {'misp_name': 'transaction', 'transactionnumber': 'transaction-number', 'date_transaction': 'date',
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'transaction_location': 'location', 'transmode_code': 'transmode-code', 'amount_local': 'amount',
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'transmode_comment': 'transmode-comment', 'date_posting': 'date-posting', 'teller': 'teller',
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'authorized': 'authorized', 'transaction_description': 'text'}}
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nodes_to_ignore = ['addresses', 'signatory']
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relationship_to_keep = ['signatory', 't_from', 't_from_my_client', 't_to', 't_to_my_client', 'address']
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class GoAmlParser():
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def __init__(self):
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self.misp_event = MISPEvent()
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def read_xml(self, data):
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self.tree = ET.fromstring(data)
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def parse_xml(self):
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self.first_itteration()
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for t in self.tree.findall('transaction'):
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self.itterate(t, 'transaction')
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def first_itteration(self):
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submission_date = self.tree.find('submission_date').text.split('+')[0]
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self.misp_event.timestamp = int(time.mktime(time.strptime(submission_date, "%Y-%m-%dT%H:%M:%S")))
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for node in goAMLobjects['report']['nodes']:
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element = self.tree.find(node)
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if element is not None:
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self.itterate(element, element.tag)
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def itterate(self, tree, aml_type, referencing_uuid=None, relationship_type=None):
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objects = goAMLobjects[aml_type]
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referenced_uuid = referencing_uuid
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rel = relationship_type
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if aml_type not in nodes_to_ignore:
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try:
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mapping = goAMLmapping[aml_type]
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misp_object = MISPObject(name=mapping['misp_name'])
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for leaf in objects['leaves']:
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element = tree.find(leaf)
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if element is not None:
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object_relation = mapping[element.tag]
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attribute = {'object_relation': object_relation, 'value': element.text}
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misp_object.add_attribute(**attribute)
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if aml_type == 'transaction':
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for node in objects['nodes']:
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element = tree.find(node)
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if element is not None:
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self.fill_transaction(element, element.tag, misp_object)
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self.misp_event.add_object(misp_object)
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last_object = self.misp_event.objects[-1]
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referenced_uuid = last_object.uuid
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if referencing_uuid and relationship_type:
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referencing_object = self.misp_event.get_object_by_uuid(referencing_uuid)
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referencing_object.add_reference(referenced_uuid, rel, None, **last_object)
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except KeyError:
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pass
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for node in objects['nodes']:
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element = tree.find(node)
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if element is not None:
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tag = element.tag
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if tag in relationship_to_keep:
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rel = tag[2:] if tag.startswith('t_') else tag
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self.itterate(element, element.tag, referencing_uuid=referenced_uuid, relationship_type=rel)
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@staticmethod
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def fill_transaction(element, tag, misp_object):
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if 't_from' in tag:
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from_funds = element.find('from_funds_code').text
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from_funds_attribute = {'object_relation': 'from-funds-code', 'value': from_funds}
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misp_object.add_attribute(**from_funds_attribute)
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from_country = element.find('from_country').text
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from_country_attribute = {'object_relation': 'from-country', 'value': from_country}
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misp_object.add_attribute(**from_country_attribute)
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if 't_to' in tag:
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to_funds = element.find('to_funds_code').text
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to_funds_attribute = {'object_relation': 'to-funds-code', 'value': to_funds}
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misp_object.add_attribute(**to_funds_attribute)
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to_country = element.find('to_country').text
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to_country_attribute = {'object_relation': 'to-country', 'value': to_country}
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misp_object.add_attribute(**to_country_attribute)
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def handler(q=False):
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if q is False:
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return False
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request = json.loads(q)
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if request.get('data'):
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data = base64.b64decode(request['data']).decode('utf-8')
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else:
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misperrors['error'] = "Unsupported attributes type"
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return misperrors
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aml_parser = GoAmlParser()
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try:
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aml_parser.read_xml(data)
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except:
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misperrors['error'] = "Impossible to read XML data"
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return misperrors
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aml_parser.parse_xml()
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r = {'results': [obj.to_json() for obj in aml_parser.misp_event.objects]}
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return r
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def introspection():
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return mispattributes
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def version():
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moduleinfo['config'] = moduleconfig
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return moduleinfo
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