323k truncated md5

[cyclone]

Info: truncated md5 (missing last 2 char)
Hints: may contain English and Polish
Hashes: truncated_md5_323k.7z
Note:: since hashcat does not support truncated md5, you have several options:

a.

Spoiler

run hashes as-is with mdxfind

b.

Spoiler

append missing chars to hashes and run with hashcat -m 0

c.

Spoiler

run cut -c -16 on hashes and run with hashcat -m 5100 (half-md5)

d.

Spoiler

write your own tooling to handle these

Have fun!

[tychotithonus]

Are these synthetic?

[cyclone]

@tychotithonus No, these truncated hashes are from an early 2000's dump.

[casper_]

Found with HM substr(md5($pass),0,30) {AVX2}
Hashes loaded: 323604
Found_230431 / Left_93173

[casper_]

93173_left.7z
230431_found.7z

[v1cvap0r]

HM still rocks !

[cyclone]

As a little incentive, here's a sneak peak of my results. I'll upload my found / left lists once everyone has had a chance to crack these.
Total: 323,604
Found: 300,269 (92.79%)
Left: 23,335

[tychotithonus]

Cracked: 304261 / 323604 - 94.0226% (Tue Jun 24 02:23:00 UTC 2025)
Cracked: 304646 / 323604 - 94.1416% (Tue Jun 24 14:35:23 UTC 2025)
Cracked: 305953 / 323604 - 94.5454% (Wed Jun 25 01:34:26 UTC 2025)
Cracked: 306152 / 323604 - 94.6069% (Wed Jun 25 19:38:52 UTC 2025)
Cracked: 307521 / 323604 - 95.0300% (Sat Jun 28 23:45:09 UTC 2025)

[v1cvap0r]

Both of you used cpu? Do you mind specifying the model? Would like to have some references to compare to my primitive i7 7700k, but mainly run those on a i7 3770k (even worse).

[tychotithonus]

Ah, no -- I'm using the 2x 4090s. For faster hashes and smaller targets I'm usually only using CPU for wordlist mangling / preparation, etc.

[petrovivo1234]

It was fun...this is what I got...far away from 94%..
Recovered........: 294590/323604 (91.03%) Digests
Remaining........: 29014 (8.97%) Digests

[A1131]

Recovered........: 292105/323604 (90.27%)
Remaining........: 31499 (9.73%)

[cyclone]

@v1cvap0r I started off using mdxfind to see what algo(s) the db contained and ended up cracking over 200k with CPU. I then switched over to GPU for the last several runs.

Hardware and software used for this:
CPU: AMD Ryzen 7 3700X, mdxfind
GPU: 1x RTX 4090, hashcat

I then wrote a few lines of Go code to combine the differently formatted found and left lists between my methods of cracking with mdxfind and hashcat.

[cyclone]

Here's the found / left lists from my previous post.
300269_found.7z
23335_left.7z