Bruteforce not finding simple 4 letter hash?

[led5150]

Hi,

I must be doing something wrong, because I can't seem to have hashcat crack a simple 4 letter hash using brute-force.  Here is what I'm trying.

The hash is:

NOTE: Edited below per the 'rules' section! Sorry for posting the hash.. didn't know that wasn't allowed. Have masked now.

Code:

cindybear:1001:aad3b435b51404eeaad3b435b51404ee:B28XX81XXX43XX086XX2XXX7XXXDXXX65:::

The password for this hash should be "what".  Four lowercase letters w, h, a, t

The command I'm running is:

Code:

hashcat -m 1000 -a 3 -i --increment-min=4  easyntlm.txt ?l?l?l?l -O

But hashcat does not find it!  What am I doing wrong?  Is there a flag I'm missing?

Please help!  I've been running a 10 char brute force for a while now using a similar method and I'm afraid that I've lost a lot of time because the command I ran is wrong.

Thanks!