Overview

overview

10

Static

static

10

7029920843...1a.exe

windows7_x64

10

7029920843...1a.exe

windows10_x64

10

Analysis

  • max time kernel
    131s
  • max time network
    175s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    24-01-2022 01:51

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General

  • Target

    7029920843b2208d76c02eedd06402b066a8ecbeb6331969c2deb82302dee71a.exe

  • Size

    164KB

  • MD5

    8cca2085504d50223994b77637e3c946

  • SHA1

    cb0cae364b3993732e9f832dabc1425cb9ebafe8

  • SHA256

    7029920843b2208d76c02eedd06402b066a8ecbeb6331969c2deb82302dee71a

  • SHA512

    56157c3770c7f3f272b6a8ffd36b2cd25e151efa08bd30cf0fb2f1bf40fee4346771a67eca70c59083125bd5a441cc08de6be527548f1d147d8cea8f01efdf51

Score
10/10
ryukransomware

Malware Config

Extracted

Path

C:\yw1o8n-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 yw1o8n. 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/6D23E46DB199E64B 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/6D23E46DB199E64B 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: Q1AuTZkceX+U30cC8CI4LpVVCtbFaZMCTXG3j1J1SAXUQjFCQ+AR8bhra+Jk6/YE ecCJiKOiwjjhfv4rdRpDpZmnftR5XB+Px5hApQFhzinqDA1RuALQ5jcyXB8sk9yL q2WIKFH8cWsTcXYceK2D7gj4lG5WtV9Jm9RJ6vRwYxOgPGWlxB8NDDVxdJ9aZrIo Il8X+rw97DagAsNIj288GlCtV2SkNvIChfa8w/x2YZ9Bxq8qqEwIly7j6qruPflc bRflAsX/MoIq/GGVl2lWz2HkMr23HYuM7m6PDXZY3gI/th0DpEU6azeLMctkF+lX G+WBM7IWEMEB9ICOZma5eWKa2+chetRa43Y21Hsa2OwY+G7dqUZReEnjIMeLsbIa NYACG8x5B2yxgNTAXz3CjrFazLlZiS9bepFW2pKjFCLFRNtPYPKBSwtIRJ6+XQdv lp3vpBEmIwQrk2PzTKeDeOLn0FQUrmqBy1AoetZFY4oTnLTfeKOmmgYcv25f9lEP P6ZwVM1mBBIda7SFZTIOexGYDEbIAuO+7/zdiIXhb7aHi8UOfO1LeCBstP92Dl0b ae55rXvdbbZ4IRMRFL/x3NcNyLXChhZg3g44FWprDW7kfBRx50kA08SXd7H3xQv1 ohwz2kjHaEhdMT1EtnfO+WnofT4LniHuFoQym9TGtsRjxkWln74QaV4oAGNCwsz/ GyrHtvLzKmttHZmH0Phs6uFOURZ5J6m7zQlFEbz3wBNJw4sZGn3rYj3RQF7O6Pkp /LmVVsmLMgKih0JoZyuKCdr/THmxHc/sbGABdqkYqeZ2a/Dup9ffvT/4Wn14CxvE UgRVrzMfIxBUtCnZw3rgxCn4p07pYNxdlRNsKUhsIBXJQ9DZsFl/eqAEoovsmhvH gjeQBaX+qDWr3Lx8cJUMUg74NNPYMLpLWp4qZIU+gzx6TkuTof0qM+ZQuC8BrqQ/ SwgRWOOLqedaYXGKKHG3f/OGC5zw7IHbCzlRXbBdkk03PucO37vRl2xg8Pe9jCHA lJjNM20xot7PdLUhxlYRF2Fwf0JKPdYKQL3md5sXlyha3yVd5DipL3ORGz+LSSMb LwyF7lRVDMOMJgixY95E42pcCuBhs2m2x5MsCLGQA02RsLQXBzblKppEu2pK9Vmc J2jO0w== Extension name: yw1o8n ----------------------------------------------------------------------------------------- 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/6D23E46DB199E64B

http://decryptor.top/6D23E46DB199E64B

https://filehippo.com/download_tor_browser_for_windows/

Signatures

  • Ryuk

    Ransomware distributed via existing botnets, often Trickbot or Emotet.

    ransomwareryuk
  • Modifies extensions of user files 3 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • 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
    ransomware
  • Drops file in Program Files directory 35 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7029920843b2208d76c02eedd06402b066a8ecbeb6331969c2deb82302dee71a.exe
    "C:\Users\Admin\AppData\Local\Temp\7029920843b2208d76c02eedd06402b066a8ecbeb6331969c2deb82302dee71a.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 WriteProcessMemory
    PID:1072
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:516
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:856
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1944

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/516-55-0x000007FEFBEE1000-0x000007FEFBEE3000-memory.dmp

      Filesize

      8KB

      Download

    • memory/516-57-0x00000000026F0000-0x00000000026F2000-memory.dmp

      Filesize

      8KB

      Download

    • memory/516-58-0x00000000026F2000-0x00000000026F4000-memory.dmp

      Filesize

      8KB

      Download

    • memory/516-59-0x00000000026F4000-0x00000000026F7000-memory.dmp

      Filesize

      12KB

      Download

    • memory/516-56-0x000007FEF2FB0000-0x000007FEF3B0D000-memory.dmp

      Filesize

      11.4MB

      Download

    • memory/516-60-0x00000000026FB000-0x000000000271A000-memory.dmp

      Filesize

      124KB

      Download

    • memory/1072-54-0x0000000075D61000-0x0000000075D63000-memory.dmp

      Filesize

      8KB

      Download