metamask_pwn - Metamask Vault Extractor & Decryptor

[cyclone]

Title: metamask_pwn
Author: cyclone
URL: metamask_pwn
Description: Tools to extract and decrypt metamask vaults. Supports previous versions and the new Metamask wallet vaults which have a dynamic iteration.

metamask_pwn

Toolset to extract and decrypt metamask vaults (wallets)

• Contact me at https://forum.hashpwn.net/user/cyclone if you need help recovering your Metamask wallet password or seed phrase

Metamask Vault Hash Extractor

Tool to extract metamask vaults to JSON and hashcat compatible formats

Info:

• Metamask JSON vaults can be decrypted with https://github.com/cyclone-github/metamask_pwn
• Previous Metamask hashes can be cracked using hashcat -m 26600
• New Metamask hashes can be cracked with hashcat using the custom -m 26620 kernel below
  • https://github.com/cyclone-github/hashcat_26620_kernel

Metamask Vault location for Chrome extensions:

• Linux: /home/$USER/.config/google-chrome/Default/Local\ Extension\ Settings/nkbihfbeogaeaoehlefnkodbefgpgknn/
• Mac: Library>Application Support>Google>Chrome>Default>Local Extension Settings>nkbihfbeogaeaoehlefnkodbefgpgknn
• Windows C:\Users\$USER\AppData\Local\Google\Chrome\User Data\Default\Local Extension Settings\nkbihfbeogaeaoehlefnkodbefgpgknn

Usage:

• Linux: ./metamask_extractor.bin {metamask_vault_dir}
• Windows: metamask_extractor.exe {metamask_vault_dir}

Compile from source:

• If you want the latest features, compiling from source is the best option since the release version may run several revisions behind the source code.
• This assumes you have Go and Git installed
  • git clone https://github.com/cyclone-github/metamask_pwn.git
  • cd metamask_pwn
  • cd metamask_extractor
  • go mod init metamask_extractor
  • go mod tidy
  • go build -ldflags="-s -w" metamask_extractor.go
• Compile from source code how-to:
  • https://github.com/cyclone-github/scripts/blob/main/intro_to_go.txt

Metamask Vault Decryptor

POC tool to decrypt metamask vault wallets

This tool is proudly the first publicly released Metamask Vault decryptor / cracker to support the new Metamask wallet vaults which have a dynamic iteration.

./metamask_decryptor_amd64.bin -h metamask_json.txt -w wordlist.txt
 ------------------------------------ 
| Cyclone's Metamask Vault Decryptor |
 ------------------------------------ 

Vault file:     metamask_json.txt
Valid Vaults:   1
CPU Threads:    16
Wordlist:       wordlist.txt
Working...

Decrypted: 0/1  5430.89 h/s     00h:01m:00s

Info:

• Supports previous Metamask vaults as well as new vaults with "KeyMetadata" which have dynamic iterations
• If you need help extracting Metamask vaults, use Metamask Extractor https://github.com/cyclone-github/metamask_pwn
• Metamask Vault Decryptor is superseded by hashcat, however, Metamask Vault Decryptor also displays the seed phrase alongside the vault password, which hashcat does not currently support

Example vaults supported:

• Old vault format: {"data": "","iv": "","salt": ""}
• New vault format: {"data": "","iv": "","keyMetadata": {"algorithm": "PBKDF2","params": {"iterations": }},"salt": ""}

Usage example:

• ./metamask_decryptor.bin -h {wallet_json} -w {wordlist}

Output example:

If the tool successfully decrypts the vault, tool will print the vault json, seed phrase and vault password

Decrypted Vault: '{}'
Seed Phrase:    ''
Vault Password: ''

[rickyc2024]

I am creating my own metamask vault decryptor, not to sell. The issue is python and leveldb hate eachother, I can't get leveldb working with python. Mind if I rewrite your metamask extractor?

[cyclone]

@rickyc2024 Sure, thanks for asking! metamask_pwn is released under the GPL v2.0 License, so you're free to use, modify, and redistribute it as long as you comply with the license terms. Please make sure to:

1. Retain the GPL v2.0 License in your modified code
2. Include a reference to the metamask_pwn repository in your project
3. Provide source code if you distribute the modified version

https://github.com/cyclone-github/metamask_pwn

Good luck with your project!

[deva]

Hey cyclone i am trying to decrypt my metamsk vaulkt using the metamask decryptor but it says " can not read infor from vault" would your tool help me read the contents.

[cyclone]

@deva I moved your reply to the correct Topic. Read through the info above (https://forum.hashpwn.net/post/74) and send me a DM if you still have any questions.