See this sample:
It looks like IRIS-H finds a unicode filename/path that rtfobj does not report:
https://iris-h.services/#/pages/report/7663ae93af3c9058649e91d8704309a1ce86c5d3

And some OLE objects are not well formed:
rtfobj 0.54dev1 on Python 2.7.14 - http://decalage.info/python/oletools
THIS IS WORK IN PROGRESS - Check updates regularly!
Please report any issue at https://github.com/decalage2/oletools/issues
===============================================================================
File: '8326bcb300389a2d654e6e921e259e553f33f8949984c2da55ccb6e9ed3f6480' - size: 3210111 bytes
---+----------+---------------------------------------------------------------
id |index |OLE Object
---+----------+---------------------------------------------------------------
0 |0000FF12h |format_id: 2 (Embedded)
| |class name: 'Excel.Chart.8'
| |data size: 390656
| |CLSID: 00020821-0000-0000-C000-000000000046
| |Microsoft Excel.Chart.8
---+----------+---------------------------------------------------------------
1 |00132A95h |format_id: 2 (Embedded)
| |class name: 'Excel.Chart.8'
| |data size: 390144
| |CLSID: 00020821-0000-0000-C000-000000000046
| |Microsoft Excel.Chart.8
---+----------+---------------------------------------------------------------
2 |002A921Bh |format_id: 2 (Embedded)
| |class name: 'Package'
| |data size: 359075
| |OLE Package object:
| |Filename: u'1111111111'
| |Source path: u'111111111111111111111111111111111111111111111111
| |1111111111111111111111111111111111111111'
| |Temp path = u'1111111111111111111111111111111111111111111111'
---+----------+---------------------------------------------------------------
3 |00301413h |format_id: 2 (Embedded)
| |class name: 'Package'
| |data size: 4862
| |OLE Package object:
| |Filename: u'crossaaa.dll'
| |Source path: u'C:\\crossaaa.dll'
| |Temp path =
| |u'C:\\Users\\Reverse\\AppData\\Local\\Temp\\crossaaa.dll'
| |EXECUTABLE FILE
---+----------+---------------------------------------------------------------
4 |00303F9Eh |format_id: 2 (Embedded)
| |class name: 'Package'
| |data size: 5886
| |OLE Package object:
| |Filename: u'croszaaa.dll'
| |Source path: u'C:\\croszaaa.dll'
| |Temp path =
| |u'C:\\Users\\Reverse\\AppData\\Local\\Temp\\croszaaa.dll'
| |EXECUTABLE FILE
---+----------+---------------------------------------------------------------
5 |00307342h |Not a well-formed OLE object
---+----------+---------------------------------------------------------------
6 |00307336h |Not a well-formed OLE object
---+----------+---------------------------------------------------------------
7 |0030B792h |Not a well-formed OLE object
---+----------+---------------------------------------------------------------
8 |0030B786h |Not a well-formed OLE object
---+----------+---------------------------------------------------------------
See this sample:
It looks like IRIS-H finds a unicode filename/path that rtfobj does not report:
https://iris-h.services/#/pages/report/7663ae93af3c9058649e91d8704309a1ce86c5d3
And some OLE objects are not well formed: