Resubmissions

23-08-2021 11:15

210823-pxagdkdr6e 10

23-06-2021 19:07

210623-8q5a1e72gs 10

Analysis

  • max time kernel
    1788s
  • max time network
    1806s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    23-08-2021 11:15

General

  • Target

    full.bin.exe

  • Size

    122KB

  • MD5

    75b7a0612a92dd0230ab84ca81e07e01

  • SHA1

    c459b33b46d4d08ea720a449422ff2253ad16a09

  • SHA256

    203e8db304a49ec45bb077154254d8209074ce0bbceede18c02de5cd27ed4e46

  • SHA512

    cd09cf413da8792373362abae9cc787524a7022ee28ab59d33aca4e5bddae14845658e24844b9d92ed46fa8038fc729ddb7fcd743d12dc01eb416e4b1af637bf

Malware Config

Extracted

Path

C:\8z10cl9y-readme.txt

Family

sodinokibi

Ransom Note
---=== Welcome. Again. ===--- [+] Whats Happen? [+] Your files are encrypted, and currently unavailable. You can check it: all files on your system has extension 8z10cl9y. 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 practice - time is much more valuable than money. [+] 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/683031DAAB05A186 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://decoder.re/683031DAAB05A186 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: ZfvNLO+q49DtIQs1hF+tHQ3B58PW6sVtD+Pfy4wUUCxFKV1qPAAQXWD3nFdqfDGv eluEVZh8ZPz3CTDPe8difsvHbTkFGy5baEZuWFnGVfy+ebEedXiuNWZJzt+IECjg 8QtwMEz4QSj5d3OHB+/AEb92wXAl6WXD6RcmiG0H6iZ3/CLuL+BMD3l3nkL9ao6l IRhpA2lSzHMHRnTRQcUyVk7wg0QqiAOzo09GiMnLqMGBqsMm3jO6NJpH8uAOJemD P26CciMLnFwiY3vgjE4hWwO18pkzjG3GU8e51Mc47O8lqPmvva+snNgfKNtAXqXe 2E4lVwgrynuqp+0iirDF/Oxu3KIZNwCjNM06L/3iVl+3Rv803764tVIwb4rDp1Hs AJkBQaZNr2qdeinj5RVq9lMAUHSSPYI3s7b5UKbOJdYLpsB6bgG1/hS+Qf7L9JbL hgfuxU1tPmMW0TkNx6SfBfRkJTlj2WuCGSK8SNPG19X01b/lUK6myybxezgcnBeS qVBV+WM3cvpFM2mp36W1z2HnTMPTUbpqOiEMdu4cG+3UY29y8iRUxGH1mIqW46Af hIkSjRjp5JVxoQYlosl0IjhroSgYd7JZhFQFOZ6Cdvjta9Zic1eu2IengiXB4UJe wcGIQnn+hL1c1lY6YQ+PEvZDxEhtagtN8/6VqZmKH4tiOOu8SRORXYJk6f+vHvmS y2cLXjVeJlyT/KVHmwWj131zXP0QOqcoue1fhMeObZxV6qx/82aWoPz7mWFWwt/T DDPwjkM74UW9J7CAd93+8FouvEUdDoFNUZU8PVNhnNwWlIaqXqSRiETDkpAeo6sm OONQjEzF58nZ0aSkzPRbKsZf7rUNVS/zXkmozPRJJhJvy8ab31LGKmiRTzoIbrps YVwdojMKAPNp3cE9i//GBuwf5h2oQl2kjvoiwBbmvsRtGE0skXOHJYa8fV8FS10p uUtJ6YOvHQTU/V6ChYbHMYl5zIUbnnoS1QyrChrbKfDo1uK3ST29XZRBqHmytmvq 2DaW/xAFtEveb8s8EZvc6bRVjPcw66rIW4hDrnTGKdAS0bAZu8WRAe9BMa9y2i6J qCmwTW8PvS7iPiDMy8fL9898/RW+fTjPl/sjAJfJkLPMDlLNNg+eI7KcbLpmtxk+ 1ekvmN1EM4SzUK0Psz0l/ppwsolV6cLC52kly+mL0eweos3XQmTn5kP0jG/vLjLa V21V84RyvryfHtW5+cuxfMPjzuBw+SoECy89kb1eVREtBJubUVgfsKh1q01zFMj1 EG6CDi7JkvT5cQ== ----------------------------------------------------------------------------------------- !!! DANGER !!! DONT try to change files by yourself, DONT use any third party software for restoring your data or antivirus solutions - its may entail damage 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

http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/683031DAAB05A186

http://decoder.re/683031DAAB05A186

Signatures

  • Sodin,Sodinokibi,REvil

    Ransomware with advanced anti-analysis and privilege escalation functionality.

  • suricata: ET MALWARE Known Sinkhole Response Header

    suricata: ET MALWARE Known Sinkhole Response Header

  • Modifies Windows Firewall 1 TTPs
  • Modifies extensions of user files 4 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • 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
  • Drops file in Program Files directory 19 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\full.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\full.bin.exe"
    1⤵
    • Modifies extensions of user files
    • Adds Run key to start application
    • Enumerates connected drives
    • 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:628
    • C:\Windows\SysWOW64\netsh.exe
      netsh advfirewall firewall set rule group="Network Discovery" new enable=Yes
      2⤵
        PID:3136
    • C:\Windows\system32\wbem\unsecapp.exe
      C:\Windows\system32\wbem\unsecapp.exe -Embedding
      1⤵
        PID:2860
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3684

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/3136-114-0x0000000000000000-mapping.dmp