Thank you for your answer nc50lc,

is there a way to do some reverse engineering on these wallets? I've tried billions of passwords but none of them seem to match. Now I'm using this command but no succes so far.

python C:\Users\[MYDESKTOPHERE]\Downloads\btcrecover-master\btcrecover-master\btcrecover.py `
    --wallet C:\Users\[MYDESKTOPHERE]\Downloads\Test\wallet_07_06_2013_21_36_42.aes.json `
    --tokenlist C:\Users\[MYDESKTOPHERE]\Downloads\Test\tokens.txt `
    --no-dupchecks `
    --max-tokens 2 `
    --typos 5 `
    --typos-capslock `
    --typos-swap `
    --typos-repeat `
    --typos-delete `
    --typos-case `
    --typos-replace `
    --typos-insert