Companion to: The 38KB Fingerprint: How Guccifer 2.0 Cloned Contaminated Documents
This guide shows you how to verify that Guccifer 2.0 used Microsoft Word 2007—not Word 2010 or any other version—to create the fabricated documents.
What you'll need:
What you'll verify:
Time required: About 5 minutes
Every RTF file saved by Microsoft Word contains an embedded "datastore" object with XML metadata that reveals the Word version used. This metadata is automatically embedded by Word during the save operation—users cannot alter it.
Two key version indicators:
Combined, these prove Word 2007:
Download "1.doc" from Guccifer 2.0's blog:
Alternatively, view it directly in our interactive viewer:
Option A: Using our interactive viewer (easiest)
Click here to jump directly to the datastore in 1.doc with highlighting:
The highlighted section shows the hexadecimal data we need to examine.
Option B: Using a text editor
Copy the hexadecimal block:
Starting immediately after {\*\datastore, copy the entire block of hex characters (they look like: 4d73786d6c322e534158584d4c526561646572...)
Convert to readable text:
At the top of the converted text, you'll see:

MSXML version from 1.doc datastore
Result: Msxml2.SAXXMLReader.5.0
What this means: This is the MSXML version embedded by Word 2007.
Scroll down in the converted text and you'll find:

Bibliography namespace from 1.doc datastore
Result: http://schemas.microsoft.com/office/2006/bibliography
What this means: This is the bibliography feature introduced in Word 2007.
According to Wikipedia (citing Microsoft TechNet):
MSXML 5.0 was a binary developed specifically for Microsoft Office. It originally shipped with Office 2003 and also ships with Office 2007. Microsoft has not released documentation for this version because Microsoft considers MSXML 5 an internal/integrated component of Office 2003. MSXML 5 is not included in Office 2010.
This definitively rules out Word 2010.
The 2006 bibliography namespace debuted in Word 2007, which rules out Word 2003.
Combined evidence:
Conclusion: Word 2007
Confirming Word 2007 usage is important because it:
This Word version identification is part of a larger forensic analysis demonstrating systematic document fabrication. For the complete picture, see:
Guccifer 2.0's Document Fabrication Assembly Line: The 38KB Smoking Gun →
If you want to verify this finding further, you can:
Test 1: Check other Guccifer 2.0 documents
Test 2: Compare with Word 2010 output
Test 3: Local file link preservation
To carry out these tests you can obtain Word 2007 and Word 2010 from the following locations:
What we verified:
How long it took: ~5 minutes
Tools required: Text editor + web browser
Trust required: Zero—Microsoft's own documentation confirms the version identification
Want to verify other aspects of the analysis?
Last updated: January 2026
This guide demonstrates one specific aspect of the forensic analysis: Word version identification. Every claim is independently verifiable using publicly available files and Microsoft's own documentation.