Analysis

  • max time kernel
    128s
  • max time network
    158s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    24-01-2022 01:28

General

  • Target

    9e0e558814feed54ba998b6f8ed57b6ed6a540745138bd0954b67a830119ac2e.exe

  • Size

    117KB

  • MD5

    db9c42ae065b906bd4c3d3ca3eebf3a8

  • SHA1

    e4eb7de6f678f95a2fe41cab237507136a4e9ce3

  • SHA256

    9e0e558814feed54ba998b6f8ed57b6ed6a540745138bd0954b67a830119ac2e

  • SHA512

    7bba3974182da431e4f7f0adc0f891b1a1c3efe65df1c68a96d4c4b97541b3661fb71eb2addc001b70a61d318e6ee22d103428cd83235d95fc8a039741849ca5

Score
10/10

Malware Config

Extracted

Path

C:\m63fy-readme.txt

Family

ryuk

Ransom Note
---=== Welcome. Again. ===--- [+] Whats Happen? [+] Your files are encrypted, and currently unavailable. You can check it: all files on your computer has extension m63fy. By the way, everything is possible to recover (restore), but you need to follow our instructions. Otherwise, you cant return your data (NEVER). [+] What guarantees? [+] Its just a business. We absolutely do not care about you and your deals, except getting benefits. If we do not do our work and liabilities - nobody will not cooperate with us. Its not in our interests. To check the ability of returning files, You should go to our website. There you can decrypt one file for free. That is our guarantee. If you will not cooperate with our service - for us, its does not matter. But you will lose your time and data, cause just we have the private key. In practise - time is much more valuable than money. I suggest you read about us on the Internet, we are known as "Sodinokibi Ransomware". For example, this article: https://www.coveware.com/blog/2019/7/15/ransomware-amounts-rise-3x-in-q2-as-ryuk-amp-sodinokibi-spread Pay attention to that: "How Much Data Is Decrypted with a Ransomware Decryptor? In Q2 2019, victims who paid for a decryptor recovered 92% of their encrypted data. This statistic varied dramatically depending on the ransomware type. For example, Ryuk ransomware has a relatively low data recovery rate, at ~ 87%, while Sodinokibi was close to 100%. " Now you have a guarantee that your files will be returned 100 %. [+] How to get access on website? [+] You have two ways: 1) [Recommended] Using a TOR browser! a) Download and install TOR browser from this site: https://torproject.org/ b) Open our website: http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/A7C8D97C76B4B85E 2) If TOR blocked in your country, try to use VPN! But you can use our secondary website. For this: a) Open your any browser (Chrome, Firefox, Opera, IE, Edge) b) Open our secondary website: http://decryptor.cc/A7C8D97C76B4B85E Warning: secondary website can be blocked, thats why first variant much better and more available. If you have problem with connect, use strictly TOR version 8.5.5 link for download TOR version 8.5.5 here: https://filehippo.com/download_tor_browser_for_windows/ When you open our website, put the following data in the input form: Key: TZchVIdW+0JTzoMju0rtZMKzL2XMaPwlbVgXqx+IYImiht5SSVhQSQFGehkMZVeb sTvPhLDHRrgospSNmpJMtZ6gd+r81qAbha964Yb8dX+XOO45pghNnr9aTbbUoPt2 0C7WG03P7IVQ4c2hILpeB1DUpif0ck/ez+JP9myOWwAcBZ+xWQPJENft3oJ5jHk0 CxeiK7OizW97FhEheQ1KcWoXz3dv0RX7yPYUSymmaGrQjPiLaNivYBUZJSf4AEzI g2H1brX7L1n+foGg+3wVM2G/7P14pTmSqhjWjWX6eUfeZswvkdWFVyJuqWJtE02r xW+WuJ7oA2d62FzEiJEQINOF/lB5xE9EvfumX7hH1XOXmeNuNGU7jXNi6l9QiqpM lF3KqHbrXk8tAlBPXdDxmQ0OVoha9dihrIDeKobaXW/fsCmQ+zLbWk2cXobksDLB MNyng0KdmwZC7lZAvQrKLrbHV+7nsz5Q5DQtDVXXBpXCzANDFJfiW4s0023hSt4N BlpUPKmzzgwguNBmb4iebB4D1HVYD72kKBj2PATaSKVl/V5/qfaCxT9kHRj0bBUc /V9Lpoepvqpilih09JJqjVE+rPPeqhMyTc4giLkdBm6psM6eA5UWLQuVj7OjJ5g/ wAYo2AKu5rPziC85yTVw4arUfRGwcJSk6CU9d/dOSXoAbvFjHtoglsI+5r+KWDaD r+2ekklUbvnizOuYFR0/xobGiJCyGtIMq8wQ6Lo72aX8n66yUYHZPchb19fWj9M5 nZOhWZWmluPKkFBhWtkqkt6ZqdmEIF0yjOOqoEb/LXA+oRZ3CmVQp8n7X/XuzVMd Hyyo+14QaaelLsB60xXOBmoecGElCEPVt2OJCpEzcYwOw1MEdHaLDuBcJrHT6dcd hlF3ZexB5DpEE29tJstuwnLQ/Zw+wgYZDHLO6YC3kPPRclDLH3Ix5O8/oI1AEqCT wGn00oJpb8iB0ElqISNPVJKMHVIi3Gm5ZpwpRLsd6RGWjY4zhsyF2W/o8g8s5Tle CxhAwVCKb5mY12kgb5IBBmKmazodH5EhcTt+2rVM35YeuQPdDd3TSHLq/aqQQnLd k+M3vdcoBu76w51IYz2r/J7dqsHBj991pbwo9St3OPBz2M7ufpmq22TZsKG4+qSu buCuVXixjnnk4uBnr9f3UPExUWz4NQ81gEyErkjYU3EV2CAngGjjzOraclMOSeGn OZQFpQwyWldnb5OfzBk4MrXPIDOOwRD+5e8Elg7UX7OHbQXHIRztD5/PcZOAzC4D 3TcICI3a+i7YX0XeoIGJ4spN9Qm6+Q== Extension name: m63fy ----------------------------------------------------------------------------------------- postscript: In case you want to independently decrypt your servers, we will be forced to put the databases of your companies in the public domain. MDF files: DB_UTILITY LeasePlus LPSecurity LTShared PaperVision !!! DANGER !!! DONT try to change files by yourself, DONT use any third party software for restoring your data or antivirus solutions - its may entail damge of the private key and, as result, The Loss all data. !!! !!! !!! ONE MORE TIME: Its in your interests to get your files back. From our side, we (the best specialists) make everything for restoring, but please should not interfere. !!! !!! !!!
URLs

https://www.coveware.com/blog/2019/7/15/ransomware-amounts-rise-3x-in-q2-as-ryuk-amp-sodinokibi-spread

http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/A7C8D97C76B4B85E

http://decryptor.cc/A7C8D97C76B4B85E

https://filehippo.com/download_tor_browser_for_windows/

Signatures

  • Ryuk

    Ransomware distributed via existing botnets, often Trickbot or Emotet.

  • Modifies extensions of user files 8 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Enumerates connected drives 3 TTPs 25 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Drops file in Program Files directory 23 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9e0e558814feed54ba998b6f8ed57b6ed6a540745138bd0954b67a830119ac2e.exe
    "C:\Users\Admin\AppData\Local\Temp\9e0e558814feed54ba998b6f8ed57b6ed6a540745138bd0954b67a830119ac2e.exe"
    1⤵
    • Modifies extensions of user files
    • Enumerates connected drives
    • Drops file in System32 directory
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1452
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:576
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1988

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/1452-54-0x0000000075D61000-0x0000000075D63000-memory.dmp

      Filesize

      8KB