mirror of https://github.com/MISP/PyMISP
94 lines
4.0 KiB
Python
94 lines
4.0 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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import sys
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from . import FileObject, PEObject, ELFObject, MachOObject
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from ..exceptions import MISPObjectException
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import logging
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logger = logging.getLogger('pymisp')
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try:
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import lief
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from lief import Logger
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Logger.disable()
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HAS_LIEF = True
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except ImportError:
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HAS_LIEF = False
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class FileTypeNotImplemented(MISPObjectException):
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pass
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def make_pe_objects(lief_parsed, misp_file, standalone=True, default_attributes_parameters={}):
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pe_object = PEObject(parsed=lief_parsed, standalone=standalone, default_attributes_parameters=default_attributes_parameters)
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misp_file.add_reference(pe_object.uuid, 'includes', 'PE indicators')
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pe_sections = []
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for s in pe_object.sections:
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pe_sections.append(s)
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return misp_file, pe_object, pe_sections
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def make_elf_objects(lief_parsed, misp_file, standalone=True, default_attributes_parameters={}):
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elf_object = ELFObject(parsed=lief_parsed, standalone=standalone, default_attributes_parameters=default_attributes_parameters)
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misp_file.add_reference(elf_object.uuid, 'includes', 'ELF indicators')
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elf_sections = []
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for s in elf_object.sections:
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elf_sections.append(s)
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return misp_file, elf_object, elf_sections
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def make_macho_objects(lief_parsed, misp_file, standalone=True, default_attributes_parameters={}):
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macho_object = MachOObject(parsed=lief_parsed, standalone=standalone, default_attributes_parameters=default_attributes_parameters)
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misp_file.add_reference(macho_object.uuid, 'includes', 'MachO indicators')
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macho_sections = []
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for s in macho_object.sections:
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macho_sections.append(s)
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return misp_file, macho_object, macho_sections
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def make_binary_objects(filepath=None, pseudofile=None, filename=None, standalone=True, default_attributes_parameters={}):
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misp_file = FileObject(filepath=filepath, pseudofile=pseudofile, filename=filename,
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standalone=standalone, default_attributes_parameters=default_attributes_parameters)
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if HAS_LIEF and (filepath or (pseudofile and filename)):
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try:
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if filepath:
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lief_parsed = lief.parse(filepath=filepath)
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else:
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if sys.version_info < (3, 0):
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logger.critical('Pseudofile is not supported in python2. Just update.')
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lief_parsed = None
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else:
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lief_parsed = lief.parse(raw=pseudofile.getvalue(), name=filename)
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if isinstance(lief_parsed, lief.PE.Binary):
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return make_pe_objects(lief_parsed, misp_file, standalone, default_attributes_parameters)
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elif isinstance(lief_parsed, lief.ELF.Binary):
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return make_elf_objects(lief_parsed, misp_file, standalone, default_attributes_parameters)
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elif isinstance(lief_parsed, lief.MachO.Binary):
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return make_macho_objects(lief_parsed, misp_file, standalone, default_attributes_parameters)
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except lief.bad_format as e:
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logger.warning('Bad format: {}'.format(e))
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except lief.bad_file as e:
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logger.warning('Bad file: {}'.format(e))
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except lief.conversion_error as e:
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logger.warning('Conversion file: {}'.format(e))
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except lief.builder_error as e:
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logger.warning('Builder file: {}'.format(e))
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except lief.parser_error as e:
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logger.warning('Parser error: {}'.format(e))
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except lief.integrity_error as e:
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logger.warning('Integrity error: {}'.format(e))
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except lief.pe_error as e:
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logger.warning('PE error: {}'.format(e))
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except lief.type_error as e:
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logger.warning('Type error: {}'.format(e))
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except lief.exception as e:
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logger.warning('Lief exception: {}'.format(e))
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except FileTypeNotImplemented as e:
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logger.warning(e)
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if not HAS_LIEF:
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logger.warning('Please install lief, documentation here: https://github.com/lief-project/LIEF')
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return misp_file, None, []
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