mirror of https://github.com/MISP/misp-modules
66 lines
2.1 KiB
Python
66 lines
2.1 KiB
Python
import json
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import binascii
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import np
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from pptx import Presentation
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import io
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misperrors = {'error': 'Error'}
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mispattributes = {'input': ['attachment'],
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'output': ['freetext', 'text']}
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moduleinfo = {
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'version': '0.1',
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'author': 'Sascha Rommelfangen',
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'description': 'Module to extract freetext from a .pptx document.',
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'module-type': ['expansion'],
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'name': 'PPTX Enrich',
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'logo': 'pptx.png',
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'requirements': ['pptx: Python library to read PowerPoint files.'],
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'features': 'The module reads the text contained in a .pptx document. The result is passed to the freetext import parser so IoCs can be extracted out of it.',
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'references': [],
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'input': 'Attachment attribute containing a .pptx document.',
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'output': 'Text and freetext parsed from the document.',
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}
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moduleconfig = []
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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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q = json.loads(q)
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filename = q['attachment']
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try:
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pptx_array = np.frombuffer(binascii.a2b_base64(q['data']), np.uint8)
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except Exception as e:
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print(e)
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err = "Couldn't fetch attachment (JSON 'data' is empty). Are you using the 'Query enrichment' action?"
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misperrors['error'] = err
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print(err)
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return misperrors
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ppt_content = ""
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ppt_file = io.BytesIO(pptx_array)
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try:
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ppt = Presentation(ppt_file)
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for slide in ppt.slides:
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for shape in slide.shapes:
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if hasattr(shape, "text"):
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print(shape.text)
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ppt_content = ppt_content + "\n" + shape.text
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return {'results': [{'types': ['freetext'], 'values': ppt_content, 'comment': ".pptx-to-text from file " + filename},
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{'types': ['text'], 'values': ppt_content, 'comment': ".pptx-to-text from file " + filename}]}
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except Exception as e:
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print(e)
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err = "Couldn't analyze file as .pptx. Error was: " + str(e)
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misperrors['error'] = err
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return misperrors
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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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