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Cracking Word 2007 passwords

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sommersb

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Post Wed Jul 01, 2009 4:34 pm

Cracking Word 2007 passwords

Looking for any tools/insights into getting past a Word 2007 doc with password protection (128 AES).  Seems like a pretty tough nut to crack.  I see Elcomsoft has a commercial tool - are there any open source alternatives?
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Ketchup

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Post Wed Jul 01, 2009 6:08 pm

Re: Cracking Word 2007 passwords

Microsoft's encryption in Office docs has gotten a lot better.  We typically use FTK's or Paraben's decryption suite for cracking these passwords.  If it's a long password, the distributed architecture of these tools helps.  They are obviously commercial tools though.  I haven't seen any open source tools for this.
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UNIX

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Post Thu Jul 02, 2009 12:29 am

Re: Cracking Word 2007 passwords

Only possibilities I know are either a bruteforce-attack or a dictionary-attack. Do you know how the password looks like?
Didn't came across any open-source tools for this yet.

If it is not something very confidential or similar maybe someone can help you who has such software available..
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sommersb

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Post Thu Jul 02, 2009 7:50 am

Re: Cracking Word 2007 passwords

Thanks for the tips - I've used the FTK Imager program but didn't know about their password product.  I just looked through the user guide and didn't see that their tool does Office 2007 docs though.

I'd not heard of Paraben before but just looked at their products.  If I need to go commercial I'll probably lean towards the Elcomsoft tools since they seem to be cheaper, unless someone has a reason to avoid them.  I'm currently trying their Office recovery tool in demo mode, using a series of dictionary files.  Their brute force portion is pretty limited in demo mode, but the dictionary mode is available.
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Ketchup

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Post Thu Jul 02, 2009 9:54 am

Re: Cracking Word 2007 passwords

It's a pretty straight forward process, brute-forcing a password.  My only suggestion is to use a tool that supports a distributed attack.  20 machines cracking a password is much faster than 1. 
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UNIX

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Post Fri Jul 03, 2009 12:08 am

Re: Cracking Word 2007 passwords

Although it may not be usual to have 20 PCs at home. ;)
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Ketchup

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Post Fri Jul 03, 2009 5:30 am

Re: Cracking Word 2007 passwords

I have about 20 probably, although not many of them actually work :) 
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linky1124

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Post Mon Aug 31, 2009 9:09 pm

Re: Cracking Word 2007 passwords

it is too hard to crack office 2007!
welcome to my blog--reset windows password

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