Overview

overview

10

Static

static

10

adbc8ca7ca...4e.exe

windows7_x64

10

adbc8ca7ca...4e.exe

windows10_x64

10

Analysis

  • max time kernel
    135s
  • max time network
    158s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    24-01-2022 01:19

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General

  • Target

    adbc8ca7ca54b8a91955af1d93f090a44ce5dd4d8fbc4ccc182857f67aed554e.exe

  • Size

    166KB

  • MD5

    ae6cea145c9f39c5b318a82b796736e6

  • SHA1

    4d55570bdba189d703c16a65ecbc6148cd426e14

  • SHA256

    adbc8ca7ca54b8a91955af1d93f090a44ce5dd4d8fbc4ccc182857f67aed554e

  • SHA512

    fe9dd654a75bf1dcc004a4bb7841892ecc48004721aae6b7d3ee5e5dc79aac29175e81d14d053ee01b2cc9a98bd329fa3910b3eaa2e20bab6e382fbbfdc1fb80

Score
10/10
ryukransomware

Malware Config

Extracted

Path

C:\68gs2k6f-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 68gs2k6f. 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/4D38C94E35AA41E3 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/4D38C94E35AA41E3 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: wSzBtZU94BWycOxzivHKnzca2GZuD9/MEgxA1YL5tU8PtPyzN1G4h6Ui42laIdKv o7Wd4wwZuNTo34M054og6eWWfpcl9ZeqnCndXLLdiJDq7zu/j7IWeZkwqjohktUh v39weYFYraVTDgXCDW9MIHIzUSZezO2T88E4FYS28Bpj+LNeY2EM1ifZQ3AN7s29 aiHZ9cUDQsW+K2zkb+gnhFNg7nfzO2yVEVwBHW8nl4eTzCp7u98osKofmPep7Fqf n88gcP/Nl2dADsW0kteAId0VxrxMrcng8r6SnEqv4sMlK3txBpT7Aky5ZQMmC8Za GzYPH55oymLPJEf0Sg6Bwntjy+CgfgMQNpofudH1KYr/n2h7YJTKUJebmUu4QuOE xlIOgiXpW6YXjSAut/loA6x9VODI+xKukbL6MDFij50T9UOXjfBSvfTyhMTc8Ow+ HrxCNhNJQ4B4APt8hgXh1Od8FV4MmGzpoRGSiWkL8AniNIgS0cUCWoqpqNTFJtnw 8D4897Vy17DE6UBW1jFK+fZyNrwCFCWi+Xpbza/chE68HYDVouwkOCOcITYpYS3p doU+cUM2YE7oC2OcbJ2OE/T5GHbmKl5jlMRWssC1USR0PeQXAGHVtpbvc7TBoAPN 40Xn3fdTDJdYb4ndV3Wrx/mpv06qkSWLTqF3nZAqqpQalqc1y220r3r3Da0U0Lxx crB4u0yHdPPjN+4xHXIzjOZAtlJm6kT6uWLKDrLMZ+m5rDapyBCEqSEP6jI5m0Jb rS//D5Rm3Ge+P33GGikNf+7Kw/A2xVnhKkvZU01dQvsgY9XikEr84YfI5n1k1Zcw MgT3OwVsMMDqbhkFnaJaWhyD6v5z9HgdqrtqlrNOfx7j+NIcUdTlHSdoAUzNbJ+f 0XazofF/m7tyR+4dGMT1GqUo3SqVh6Gj3wHwtGGPCmQ4pCS3Ua3HDLJTfCRrdBKc 68ajyJLjAZ22evOlAaYgkaIlpVyE84oOXJPgqEMw//5pNcIvQb70M7EhyBeFOmqD rJY8gEyEcTNjpp9V87AbxQcasgBoqPo/KQOFv+FJfLFXV7kj0pEp0xL2p+5furEv 0x01bV1elgjSondSmGTGY/PQ2sITLQYhREH+m/elT53nSmF7a00ONgK3G8Oh2cck pCVghQa9lz6CtXW3iwSpOZvkhpzW6EGM8toIxo/dBukxSlZwLraBMIiNvdzG0rmX dyR3Fbxq4jsTSkpN6wfD96eHRB97ajfqPWEeknQz9FZNfv2+5kDetZz5pRvARuIz Z/qKA+gCRjpfm/ZlQ/WHQVnrYMSdPOhiesUing== Extension name: 68gs2k6f ----------------------------------------------------------------------------------------- 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/4D38C94E35AA41E3

http://decryptor.cc/4D38C94E35AA41E3

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 8 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 42 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
    evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\adbc8ca7ca54b8a91955af1d93f090a44ce5dd4d8fbc4ccc182857f67aed554e.exe
    "C:\Users\Admin\AppData\Local\Temp\adbc8ca7ca54b8a91955af1d93f090a44ce5dd4d8fbc4ccc182857f67aed554e.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
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1656
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1552
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:1216
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:452

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/1552-56-0x000007FEFC2D1000-0x000007FEFC2D3000-memory.dmp

      Filesize

      8KB

      Download

    • memory/1552-58-0x0000000002880000-0x0000000002882000-memory.dmp

      Filesize

      8KB

      Download

    • memory/1552-60-0x0000000002884000-0x0000000002887000-memory.dmp

      Filesize

      12KB

      Download

    • memory/1552-59-0x0000000002882000-0x0000000002884000-memory.dmp

      Filesize

      8KB

      Download

    • memory/1552-57-0x000007FEF3530000-0x000007FEF408D000-memory.dmp

      Filesize

      11.4MB

      Download

    • memory/1552-61-0x000000001B6E0000-0x000000001B9DF000-memory.dmp

      Filesize

      3.0MB

      Download

    • memory/1552-62-0x000000000288B000-0x00000000028AA000-memory.dmp

      Filesize

      124KB

      Download

    • memory/1656-55-0x0000000075801000-0x0000000075803000-memory.dmp

      Filesize

      8KB

      Download