The Twelve Days of Christmas 2025 Challenge - Double Time

[cyclone]

Challenge Sample Hashes

---

Test your skills out on these sample hashes.

Sample Hashes 01:

Spoiler

Hint: These hashes look sick, might need to call an MD.

03d3435836d6c779224596f2e107a96a73cbf591
c5f5d9aa0f22346cb0f2fefa967b39580c5caeee
bcaa486211c29cac4decc528f6f8ef56fb23a67a
88f44391df1071314ac6d4301cb7f5cf381c33e6
aa29ebc703b6cff77eb7d94483481c365e5fcf09

Sample Hashes 02:

Spoiler

Hint: Let's touch base before we do anything crazy.

aWwwdmVicml0
cXdlcnR5MDIx
Y3VlbnRhc3A=
NDU1MzU0
bW9wYXI3NA==

Sample Hashes 03:

Spoiler

Hint: What appears hard becomes easy, if you know where to look.

$2a$10$RsDUNnVUjr90Ir9aBL8Peez7d/dWFb/ppinmDnkrzW29qe2Jvfqma
$2a$10$VxIJpXYdcI/c5PWipJSP9u1IC9E/iqJlPAhDo2fgN0pYgoVvxgwTK
$2a$10$iRCROUFD7s2w6vpjyWc82eBTQGIcpLt16dSSb1H1k8Z/YBIA1kSg2
$2a$10$WeN7yY96nXwwYysBtneU9..nmKixtpWMJfXQZCjW6XRFMjI6c.uc.
$2a$10$LjEdGXgwtrMekDVNCDjQ7.MC3z9Yr2f4OItmmxuVg8YS7kMzST45a

Last updated: 2025/12/08@23:47UTC

[cyclone]

Recommended Tools

---

It would be helpful to be familiar with some of the following tools:

• hash cracking
  • hashcat: https://github.com/hashcat/hashcat
    • https://hashcat.net/wiki/doku.php?
  • mdxfind: https://www.techsolvency.com/pub/bin/mdxfind/
  • jtr: https://github.com/openwall/john
• encoding
  • hashgen: https://github.com/cyclone-github/hashgen
  • cyberchef: https://gchq.github.io/CyberChef/

Last updated: 2025/12/08@23:47UTC

[cyclone]

Challenge Submission Info

---

Everyone participating will need to be familiar with the Challenge Submission page as you'll be using it for each of the 12 challenges.

• Each challenge will be posted with a unique Word of the Day Challenge URL
  • ie: https://contest.hashpwn.net/foobar/[uuid1234]
• There are no tips, tricks, secrets or hidden messages on the submission page, it is solely for submitting your puzzle results
• The submission page is not case-sensitive
• Make sure to properly copy/paste your puzzle results in the correct order before submitting
• If you make a mistake when submitting, you can try again
• Abusive IPs will be rate limited / banned
• Any and all participants found attempting to cheat or abuse *hashpwn.net will be fully disqualification from the Challenge without question

---

1. Challenge Submission (example)
   

---

2. Submission accepted (won)
   

---

3. Submission recorded (completed, not won)
   

---

4. Submission rejected (wrong plaintext)
   

---

5. Submission rejected (incorrect word of the day)
   

---

6. Rate limited
   

---

7. IP Banned
   

Last updated: 2025/12/08@23:48UTC

[test123456]

good nice

[cyclone]

The Challenge starts in 24 hours!

Follow this page as the first challenge will be posted here on Dec 20, 2025 @ 00:00 UTC.

---

Make sure to read through the posts, follow directions, watch for hints, and take notes!

---

Challenge Info:
https://forum.hashpwn.net/post/4844

---

Challenge Sample Hashes:
https://forum.hashpwn.net/post/7147

---

Challenge Submission Info:
https://forum.hashpwn.net/post/7149

---

[hashpwn-bot]

Challenge 01 - HASH
UTC: 2025-12-20T00:00:00Z

Secret:

57bbb659e56913a47fc91718cde35c3a
0ad9112ba115e1fd5be1fc2aff7e7de4
9e150cf81af2b645f02cfaa5655e8ab9
fedb82a5a79ed69b760e118615cd39b5

Word of the Day Challenge URL: https://contest.hashpwn.net/claim/74899148c5ae1382b2376e3e73efdaeb

[cyclone]

Congrats to our first Challenge winner! @petrovivo1234

Everyone else, keep at it! Hints will also be posted later for those who need a nudge.

[penguinkeeper]

Given it's been solved, I'm probably just being silly here but what is the word of the day and/or how do we find it? (if it's not a part of the challenge?)

[hashpwn-bot]

Challenge 01 - HINT
UTC: 2025-12-20T04:49:00Z

Spoiler

Santa suggests you use your favorite wordlist on this coMMon algo.

PRO TIP from Santa's helper:

1. When submitting, you must keep the original order and format of hashes exactly as they are posted on the challenge.
2. The first letter of each plaintext will then spell out the Word of the Day... write that down!
3. To keep you from unnecessarily banging your head against the wall on a few challenges, the submitter is not case-sensitive.
4. Take good notes!

[cyclone]

@penguinkeeper Challenge 01 - Hint answers your question.
https://forum.hashpwn.net/post/7664

[hashpwn-bot]

Challenge 02 - HASH
UTC: 2025-12-20T12:00:00Z

Secret:

59Qtuu8u5X
4h77ydZDJj
zUMry8be
3x8zW4

Word of the Day Challenge URL: https://contest.hashpwn.net/claim/81b6ba4de79c55d6335c044b7fd0986f

[hashpwn-bot]

Challenge 02 - HINT
UTC: 2025-12-20T17:21:47Z

Spoiler

What elf encoded this mess?! It's going to take me 58 minutes to figure this out.

[cyclone]

Congrats to the 8 who have completed Challenge 01 so far!

The Challenge is open to everyone of all skill levels including visitors, members and hashpwn staff.

Word to the wise, if you want a chance at the Grand Prize, you'll need to have completed all previous Challenges!