Resubmissions

25-08-2021 09:58

210825-v7zzyl2nr6 10

27-04-2021 14:41

210427-xtq2b4mr86 10

General

  • Target

    red-necessary

  • Size

    171KB

  • Sample

    210427-xtq2b4mr86

  • MD5

    8819d7f8069d35e71902025d801b44dd

  • SHA1

    5af393e60df1140193ad172a917508e9682918ab

  • SHA256

    98ece6bcafa296326654db862140520afc19cfa0b4a76a5950deedb2618097ab

  • SHA512

    41ada66895e76a0ba3cf1feea4b9cb4c76d2df1b801c44a1d333cdb8c737001ab9dcc9ef35ba8f1a87d329aa23eeca0729b2279e1955d6657172a3593627cbb2

Malware Config

Extracted

Path

C:\RyukReadMe.txt

Family

ryuk

Ransom Note
Gentlemen! Your business is at serious risk. There is a significant hole in the security system of your company. We've easily penetrated your network. You should thank the Lord for being hacked by serious people not some stupid schoolboys or dangerous punks. They can damage all your important data just for fun. Now your files are crypted with the strongest millitary algorithms RSA4096 and AES-256. No one can help you to restore files without our special decoder. Photorec, RannohDecryptor etc. repair tools are useless and can destroy your files irreversibly. If you want to restore your files write to emails (contacts are at the bottom of the sheet) and attach 2-3 encrypted files (Less than 5 Mb each, non-archived and your files should not contain valuable information (Databases, backups, large excel sheets, etc.)). You will receive decrypted samples and our conditions how to get the decoder. Please don't forget to write the name of your company in the subject of your e-mail. You have to pay for decryption in Bitcoins. The final price depends on how fast you write to us. Every day of delay will cost you additional +0.5 BTC Nothing personal just business As soon as we get bitcoins you'll get all your decrypted data back. Moreover you will get instructions how to close the hole in security and how to avoid such problems in the future + we will recommend you special software that makes the most problems to hackers. Attention! One more time ! Do not rename encrypted files. Do not try to decrypt your data using third party software. P.S. Remember, we are not scammers. We don`t need your files and your information. But after 2 weeks all your files and keys will be deleted automatically. Just send a request immediately after infection. All data will be restored absolutely. Your warranty - decrypted samples. contact emails [email protected] or [email protected] BTC wallet: 17v2cu8RDXhAxufQ1YKiauBq6GGAZzfnFw Ryuk No system is safe
Wallets

17v2cu8RDXhAxufQ1YKiauBq6GGAZzfnFw

Targets

    • Target

      red-necessary

    • Size

      171KB

    • MD5

      8819d7f8069d35e71902025d801b44dd

    • SHA1

      5af393e60df1140193ad172a917508e9682918ab

    • SHA256

      98ece6bcafa296326654db862140520afc19cfa0b4a76a5950deedb2618097ab

    • SHA512

      41ada66895e76a0ba3cf1feea4b9cb4c76d2df1b801c44a1d333cdb8c737001ab9dcc9ef35ba8f1a87d329aa23eeca0729b2279e1955d6657172a3593627cbb2

    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

MITRE ATT&CK Enterprise v6

Tasks