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General

  • Target

    60ef0ca5e6e7d62a7750cfe1c0b08d473cb19a6817a799f035ac56e0d27ce3df.zip

  • Size

    68KB

  • Sample

    210610-vhw5g8e9fj

  • MD5

    108ecdb8e50ca029a3c49100c7d270c4

  • SHA1

    147be17f110f52421910e378cd6ca2f34395f4d8

  • SHA256

    3383294e58d3251a4c7be46edf9863c291eef97932a56f0987b0553405d4b608

  • SHA512

    771c71eb2de1a4d535a8afae640b2f167d717de4460b8b8462a3634fcd0145d1c65d071235c6b600fb349419a47744eea4d2dbca3fe2e96fdebff5d2c506a84b

Malware Config

Extracted

Path

C:\MSOCache\All Users\RyukReadMe.html

Family

ryuk

Ransom Note
contact balance of shadow universe Ryuk $password = '8x0nKKx5'; $torlink = 'http://rk2zzyh63g5avvii4irkhymha3irblchdfj7prk6zwy23f6kahidkpqd.onion'; function info(){alert("INSTRUCTION:\r\n1. Download tor browser.\r\n2. Open link through tor browser: " + $torlink + "\r\n3. Fill the form, your password: "+ $password +"\r\nWe will contact you shortly.\r\nAlways send files for test decryption.");};
URLs

http://rk2zzyh63g5avvii4irkhymha3irblchdfj7prk6zwy23f6kahidkpqd.onion

Targets

    • Target

      d6b7b27e13700aaa7f108bf9e76473717a7a1665198e9aafcc2d2227ca11bba9

    • Size

      131KB

    • MD5

      2cc630e080bb8de5faf9f5ae87f43f8b

    • SHA1

      5a385b8b4b88b6eb93b771b7fbbe190789ef396a

    • SHA256

      d6b7b27e13700aaa7f108bf9e76473717a7a1665198e9aafcc2d2227ca11bba9

    • SHA512

      901939718692e20a969887e64db581d6fed62c99026709c672edb75ebfa35ce02fa68308d70d463afbcc42a46e52ea9f7bc5ed93e5dbf3772d221064d88e11d7

    • Ryuk

      Ransomware distributed via existing botnets, often Trickbot or Emotet.

    • Modifies extensions of user files

      Ransomware generally changes the extension on encrypted files.

    • Drops startup file

    • Modifies file permissions

    • Drops desktop.ini file(s)

    • Enumerates connected drives

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

MITRE ATT&CK Enterprise v6

Tasks