Unable to crack Excel 2007 password - what am I doing wrong?
#1
Hello Smile

I have been wondering about why it seems to be impossible to crack a super easy password from an Excel 2007 document.
I have created two empty xlsx documents, one encrypted with one letter password: "C" and another one with one letter password "Ć" - this is a polish letter.

C in UTF8 is 0043
Ć in UTF8 is c486

I tried to crack the C password and of course succeded with this command to launch hashcat:
  • hashcat64.exe -a 3 -w 3 -m 9400 testhash-C.lst --hex-charset -1 0043 ?1
So i thought that it should work exactly the same way for the Ć password:
  • hashcat64.exe -a 3 -w 3 -m 9400 testhash-Ć.lst --hex-charset -1 c486 ?1
Of course the "Ć" password is exhausted and nothing seems to make it work.
I tried to break the hex values to base code and character code by using two separate charsets - still EXHAUSTED:
  • hashcat64.exe -a 3 -w 3 -m 9400 testhash-Ć.lst --hex-charset -1 c4 -2 86 ?1?2
Could you please tell me what am I doing wrong in this case?
I am attaching this empty file from Excel with Ć password - in case if it helps.

Thank you in advance!


Attached Files
.xlsx   testĆ.xlsx (Size: 7.5 KB / Downloads: 2)
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Messages In This Thread
Unable to crack Excel 2007 password - what am I doing wrong? - by placencjusz - 02-04-2020, 08:18 PM