mirror of https://github.com/MISP/PyMISP
95 lines
3.4 KiB
Python
95 lines
3.4 KiB
Python
#!/usr/bin/env python
|
|
# -*- coding: utf-8 -*-
|
|
|
|
import six
|
|
|
|
from . import FileObject, PEObject, ELFObject, MachOObject
|
|
from ..exceptions import MISPObjectException
|
|
import logging
|
|
|
|
logger = logging.getLogger('pymisp')
|
|
|
|
try:
|
|
import lief
|
|
from lief import Logger
|
|
Logger.disable()
|
|
HAS_LIEF = True
|
|
except ImportError:
|
|
HAS_LIEF = False
|
|
|
|
|
|
class FileTypeNotImplemented(MISPObjectException):
|
|
pass
|
|
|
|
|
|
def make_pe_objects(lief_parsed, misp_file):
|
|
pe_object = PEObject(parsed=lief_parsed)
|
|
misp_file.add_reference(pe_object.uuid, 'included-in', 'PE indicators')
|
|
pe_sections = []
|
|
for s in pe_object.sections:
|
|
pe_sections.append(s)
|
|
return misp_file, pe_object, pe_sections
|
|
|
|
|
|
def make_elf_objects(lief_parsed, misp_file):
|
|
elf_object = ELFObject(parsed=lief_parsed)
|
|
misp_file.add_reference(elf_object.uuid, 'included-in', 'ELF indicators')
|
|
elf_sections = []
|
|
for s in elf_object.sections:
|
|
elf_sections.append(s)
|
|
return misp_file, elf_object, elf_sections
|
|
|
|
|
|
def make_macho_objects(lief_parsed, misp_file):
|
|
macho_object = MachOObject(parsed=lief_parsed)
|
|
misp_file.add_reference(macho_object.uuid, 'included-in', 'MachO indicators')
|
|
macho_sections = []
|
|
for s in macho_object.sections:
|
|
macho_sections.append(s)
|
|
return misp_file, macho_object, macho_sections
|
|
|
|
|
|
def make_binary_objects(filepath=None, pseudofile=None, filename=None):
|
|
misp_file = FileObject(filepath=filepath, pseudofile=pseudofile, filename=filename)
|
|
if HAS_LIEF and filepath or (pseudofile and filename):
|
|
try:
|
|
if filepath:
|
|
lief_parsed = lief.parse(filepath=filepath)
|
|
else:
|
|
if six.PY2:
|
|
logger.critical('Pseudofile is not supported in python2. Just update.')
|
|
lief_parsed = None
|
|
else:
|
|
lief_parsed = lief.parse(raw=pseudofile.getvalue(), name=filename)
|
|
if isinstance(lief_parsed, lief.PE.Binary):
|
|
return make_pe_objects(lief_parsed, misp_file)
|
|
elif isinstance(lief_parsed, lief.ELF.Binary):
|
|
return make_elf_objects(lief_parsed, misp_file)
|
|
elif isinstance(lief_parsed, lief.MachO.Binary):
|
|
return make_macho_objects(lief_parsed, misp_file)
|
|
except lief.bad_format as e:
|
|
logger.warning('Bad format: {}'.format(e))
|
|
except lief.bad_file as e:
|
|
logger.warning('Bad file: {}'.format(e))
|
|
except lief.conversion_error as e:
|
|
logger.warning('Conversion file: {}'.format(e))
|
|
except lief.builder_error as e:
|
|
logger.warning('Builder file: {}'.format(e))
|
|
except lief.parser_error as e:
|
|
logger.warning('Parser error: {}'.format(e))
|
|
except lief.integrity_error as e:
|
|
logger.warning('Integrity error: {}'.format(e))
|
|
except lief.pe_error as e:
|
|
logger.warning('PE error: {}'.format(e))
|
|
except lief.type_error as e:
|
|
logger.warning('Type error: {}'.format(e))
|
|
except lief.exception as e:
|
|
logger.warning('Lief exception: {}'.format(e))
|
|
except FileTypeNotImplemented as e:
|
|
logger.warning(e)
|
|
if not HAS_LIEF:
|
|
logger.warning('Please install lief, documentation here: https://github.com/lief-project/LIEF')
|
|
if not filepath:
|
|
logger.warning('LIEF currently requires a filepath and not a pseudo file')
|
|
return misp_file, None, None
|