General

  • Target

    2024-02-01_4b856a1955455820d78ff42a58a77cd8_ryuk

  • Size

    212KB

  • Sample

    240201-q1h8wagfal

  • MD5

    4b856a1955455820d78ff42a58a77cd8

  • SHA1

    738ac3a6503620634fe841aac9a3bdff44efe8db

  • SHA256

    2d90f3ce2c9cb5e3cb5365e5f618e96c80a08133839ff6b29fc4808fe70ddf41

  • SHA512

    d017e766a3ca6f4ef71f137c3b8acd9e4b764ab47c3b5436113c08f1df0e33604b4f2954555edbcd1f3c38d64795a007a627656178c5827661773c45b162ab6f

  • SSDEEP

    3072:skoemwJEECCvcVbQQFrUoR19V6To0Hqs3WvSp:ZEECCElQk3wqFu

Score
10/10

Malware Config

Extracted

Path

C:\RyukReadMe.txt

Family

ryuk

Ransom Note
Your network has been penetrated. All files on each network host have been encrypted with a strong algorithm. Backups were encrypted too. Shadow copies also removed, so F8 or any other methods may damage encrypted data but not recover. Only we have exclusive decryption software, suitable for your situation. More than a year ago, world experts recognized the impossibility of such encryption deciphering by any means except the original decoder. No decryption software is available in the public. Antivirus companies, researchers, IT specialists, and any other persons cannot help you to decipher the data. Decryption takes from ten minutes up to several hours. It is performed automatically and doesn't require from you any actions except decoder launching. DO NOT RESET OR SHUTDOWN SYSTEM � files may be damaged. DO NOT DELETE readme files. To confirm our honest intentions. Send 2 different random files and you will get them back decrypted. It can be from different computers on your network to be sure that one key decrypts everything. We will unlock 2 files for free. To get info (decrypt your files) contact us a KaysynKuechle@protonmail.com or StridDeana1995@protonmail.com You will receive btc address for payment in the reply letter Ryuk No system is safe
Emails

KaysynKuechle@protonmail.com

StridDeana1995@protonmail.com

Targets

    • Target

      2024-02-01_4b856a1955455820d78ff42a58a77cd8_ryuk

    • Size

      212KB

    • MD5

      4b856a1955455820d78ff42a58a77cd8

    • SHA1

      738ac3a6503620634fe841aac9a3bdff44efe8db

    • SHA256

      2d90f3ce2c9cb5e3cb5365e5f618e96c80a08133839ff6b29fc4808fe70ddf41

    • SHA512

      d017e766a3ca6f4ef71f137c3b8acd9e4b764ab47c3b5436113c08f1df0e33604b4f2954555edbcd1f3c38d64795a007a627656178c5827661773c45b162ab6f

    • SSDEEP

      3072:skoemwJEECCvcVbQQFrUoR19V6To0Hqs3WvSp:ZEECCElQk3wqFu

    Score
    10/10
    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

    • Detects command variations typically used by ransomware

    • Drops desktop.ini file(s)

MITRE ATT&CK Matrix ATT&CK v13

Tasks