Analysis

  • max time kernel
    121s
  • max time network
    132s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    17-06-2021 04:59

General

  • Target

    b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe

  • Size

    122KB

  • MD5

    1e971a9a6f5d19a7383e9f4d7fa7e3e0

  • SHA1

    62b177d400485f41b2ff5800622f24213c41a557

  • SHA256

    b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152

  • SHA512

    4037cc8f0e605327381d7aca13fda4da4f4945ecfccc04ce7d0c0ce651c3e408b33984b9d144c25cb459928e6c15aac9521d31a92567cb24e31c41dd9bb66577

Malware Config

Extracted

Path

C:\be1g8-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 be1g8. 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. [+] Data leak [+] First of all we have uploaded more then 200 Gb archived data from your file server and SQL server Example of data: - Full financial information - Accounting data - HR - Scans of docs - Confidential files And more other... Our blog: http://dnpscnbaix6nkwvystl3yxglz7nteicqrou3t75tpcc5532cztc46qyd.onion/ Read what happens to those who do not pay. [+] 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/BB570B2F2E8BCAC1 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/BB570B2F2E8BCAC1 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: RlbkZEoU4CQr6S+gF3MfrtquLwJBloA7vCJLG+tII1MOsqiBSIYd126qI/z8PXA/ njxWxqC93O2JCXvS7iX7tjeY5KLjBKbI3bXtxtBufDblOkP1a8z6lVm8c0G6IZUu JA1oYJJTIg317Q5v2HLBmDGxkPXfErULiJ6gwUb0UTQ5aT8O0h2qDMKIcKFVlabN V9fQPtJSYMHvr1uLogjAVl1i1J6FzQvglIbZUJoKCUe8hJz2kQ6aTBMISzLz50CT zrAMyrW637MGwARz5NUJLDLbaKxtIAq8aIkFBHc+wxU3wRZ5jStrJGDwn01H5b+L 131L0rUotLyTIf9amMXIsJ/U5y73qVq8K5ocLQTEvJDJG/taH5x3zibYT6SSlT3v XUCKMBSb2hiG9ZasUJupg1H7d0lWR7BFlaEk0sdUPRkYShAsof8ciSkIIRkGHsdf IXyQWCvFcXks8YgSSI1+kGnsgCadgvgomZI0BH9LEZFyywsSti/HPvu0U7S2ObZF BgrCUdJp9oYt42Hb/zcVwp220b9lPeWbz3Uiw6qYlw81GRTOv9qrVFoHfpijbydI tQR2QPrcGJaGeSK+EXcZZErw9vaYj1/6sKv7627RwgA8RO+U1emK14p3TNVM9GOi 9u8mwgREIvdWHcQuzSWQYHaGbipmhPI5nKg0J2LuPPm7rjDdprNDUu+Eti7VogWy /O8D9Wf9PW1vqxHW0WqkpXIORTm/St8JBP6lyMFhfAMCwdxHOwBrg6t/McTQGqJn ZE+L6U3CDgtDsdszlEGMNUCxGO+2j5CIwlERCYlGLD7S2xXMHnr4oVTLAxW6NADm kF6Yjk6PXBYUMnQEkhaHXkSOTLspyKY0bNAJGFjuGt9BKFARxSzuKR11KXXkX7Hu yKpZmW7gSRM/3lkzsvgtmsqL8UyIxsLKXi1yvng/bauQw20xpCAXKMf7919odORJ zmzN/noxbX++NZUggytN3TNqhEStHdpm1lxE2fnT8fTXFbKXvy/aeAs6UWjNoMXI KrVmkbevH5Cn87VJ1VwJDlKlXnH042jbiUqJ5BhPeZGNdjcYvyx8WnJYgDZsB9KX l6kQ0D8aWWVHoTH0v3T5zaIam+pxgL4VL2ZpOZRwzUU/6VqY6ruL1NiGikZVnxzF m922kQRatoofavo40S8oloPrakhmMGCUMjK7r49krcbzoqtLQsgPhixYbebvZFWj 9Hn4l25qd0qKrKnfvQiphf7bf5vpp1DVu70e9F35jgj8LKu7RKmONhZCNgQRMLTP FP0buA== ----------------------------------------------------------------------------------------- !!! DANGER !!! DON'T try to change files by yourself, DON'T 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/BB570B2F2E8BCAC1

http://decoder.re/BB570B2F2E8BCAC1

Signatures

  • Sodin,Sodinokibi,REvil

    Ransomware with advanced anti-analysis and privilege escalation functionality.

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

    Ransomware generally changes the extension on encrypted files.

  • 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 31 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.exe
    "C:\Users\Admin\AppData\Local\Temp\b9924321b4f05ec0b98e272ddd4f91feb69eb93c44186ca165a4d51beed91152.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:636
    • C:\Windows\SysWOW64\netsh.exe
      netsh advfirewall firewall set rule group="Network Discovery" new enable=Yes
      2⤵
        PID:184
    • C:\Windows\system32\wbem\unsecapp.exe
      C:\Windows\system32\wbem\unsecapp.exe -Embedding
      1⤵
        PID:820
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2260

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/184-114-0x0000000000000000-mapping.dmp