Overview

overview

10

Static

static

10

cd50529f1e...f8.exe

windows7_x64

10

cd50529f1e...f8.exe

windows10_x64

10

Analysis

  • max time kernel
    138s
  • max time network
    178s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    24-01-2022 01:02

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General

  • Target

    cd50529f1ebd3bc934d761d2e7da23a4225e90020ee9cd9d564df3db0aef3af8.exe

  • Size

    115KB

  • MD5

    193f84c1f7e306144ef53b019e46bd10

  • SHA1

    4ab67ccfe975625992cf34c19c9bfc6d3a72ec38

  • SHA256

    cd50529f1ebd3bc934d761d2e7da23a4225e90020ee9cd9d564df3db0aef3af8

  • SHA512

    dbe6f8fac6939bd14b7d476504a806aeab8b9b6a655cc6cbf10179452dd6707ca2ce3fa72653347417340a81d6a23e81bc8255dd4717cdfa20a1dc4c3756a7f9

Score
10/10
ryukransomware

Malware Config

Extracted

Path

C:\y1i9oi-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 y1i9oi. 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/4E0774232C0833FA 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/4E0774232C0833FA 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: jEEG221PXjVWc9pugw/RXVZlsrwyx92KFSxVzyQn8INicv3iD42KdVdQVAeDucmO fC4fUjVfVXIKQBmfwrHwjuA3HeUT5z3TiWrClaJjsdvN3lhQ4CQYKL7HFh0u0275 2p+1dz5dHwFbCymQtBNXtVF8nA3LLO1xxURrA8n4xHjKMSbn9DUPIW5jR51RE8R/ Zl6ee3ahmFjZe0VB+5ht7EQDAX0lAfrOLCuoZ6/Z00PG7oKqZZp/Hz5XUX4m1rkC PbXDIMpwYQNg+ynGdVCPk8XKgN2KPQK6hlqNYw393zxu4g6S4x/uNmRzCEKvL1Ue CpOnmxOzg+fHW63J2t68AeGwxVHPVHddBIgwkxRyMYy7zZO78zfXn4tqvh7CDG7X UA929vrGA1BevZyll7ytTw9iPMQi+ii1TEX3kPYu124ztC4JryMd+e3DttBd1Wi/ vHW3G4NXJ92lae21zogovLcb2p2XqgJLZGpK4xcL/YojgqoMW6g0CgExBDsjG+aw pa11LTyw48Dl12rm3mFmVH0Rrp3/th0xGQp+h5bvlWdgrgXei76WLwkGGDH6yYKJ Jqhsl0V6ZexXJS1ZrZtJQz+V/W0VIa3UJc/NvAGftsWSTKlGrMTqokp137Qb481z LB9uYVMFYTeEAKq5b0uoEMHgxXA/HMeYsx4+aazP8n8vSYQuZT1jOdndWPvKpXi/ kpubjcJHBLkUjUamxMpq6N11r73HTDV5xiniVBG/5z0bkcOPasCuqVa+tOQk/9P5 iRLkhBC8IkQRLwnzybtJBANRcvXebSrMneIsNh1lr4mjsQAC09aYWpqxSrV1Xsne cD+9pyKi0HbE6w3PUD6w6hQwV+pma5q0nbEPgdTDoNe2GNiYlM+bnzl0D7+UR5Tk wp0I1E2ASSs3UPJjiAd1yrVqegZXuoL40upT9ljN4SSGT5djoAmh1ZyjOqRw5lKz Uu4EFbOuVAhttDmxuyWXb3jDDbf0FUnXM36zj05Rre69ujmNRs25aQk0xQZUkaNL wf/FnMS2HRWu4tqjgdSyPhxUPudeK/ZojawcFxQvXNZ3H5qT9pReDgRYCblVcNW0 Hwn31Q3ttXJ/Z9BYWsQR6jblZcmSZQIF9TEh77Jna3YBexO0vPXg9SoNES3NQlDI eLwISoMCVrUq/zW0+y4wmLZj0uxQZLJ3ocTITncbaUVtmyFzCaYFh5sRZgaDi32J J2QwAxttkOm0ZmXSPIZVodTUPoLMWucEsHxHOGln+OoN97PAY3bfiuGYHMHcr479 B0LRLGqjXNPVAUqpE3pzlDkTx+0Xi9gu Extension name: y1i9oi ----------------------------------------------------------------------------------------- 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/4E0774232C0833FA

http://decryptor.cc/4E0774232C0833FA

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 16 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.

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
    ransomware
  • Drops file in Program Files directory 37 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cd50529f1ebd3bc934d761d2e7da23a4225e90020ee9cd9d564df3db0aef3af8.exe
    "C:\Users\Admin\AppData\Local\Temp\cd50529f1ebd3bc934d761d2e7da23a4225e90020ee9cd9d564df3db0aef3af8.exe"
    1⤵
    • Modifies extensions of user files
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1592
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1472
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:1136
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1796

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/1472-55-0x000007FEFBC11000-0x000007FEFBC13000-memory.dmp

      Filesize

      8KB

      Download

    • memory/1472-56-0x000007FEF2FB0000-0x000007FEF3B0D000-memory.dmp

      Filesize

      11.4MB

      Download

    • memory/1472-57-0x00000000027C0000-0x00000000027C2000-memory.dmp

      Filesize

      8KB

      Download

    • memory/1472-58-0x00000000027C2000-0x00000000027C4000-memory.dmp

      Filesize

      8KB

      Download

    • memory/1472-59-0x00000000027C4000-0x00000000027C7000-memory.dmp

      Filesize

      12KB

      Download

    • memory/1472-60-0x00000000027CB000-0x00000000027EA000-memory.dmp

      Filesize

      124KB

      Download

    • memory/1592-54-0x0000000076151000-0x0000000076153000-memory.dmp

      Filesize

      8KB

      Download