Analysis

  • max time kernel
    145s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    09-11-2020 19:27

General

  • Target

    file.dll

  • Size

    164KB

  • MD5

    0ae77d606609c1f0fc3f1fbac91cf140

  • SHA1

    c1d7832d4e1ef884dcf00be860517abad5d0c1d2

  • SHA256

    ccdb5316112f277ca0b8475884223713ca5afc4f9b729250fa5be07c486822a4

  • SHA512

    3236e6bcb11ba90ba7dbb591200d316f6c3168cb9c21623caba23d36a1724f11fc036a3629cecf88e21506feebdfe0002906cec41b0cf5e96a28b2e97a6e541e

Malware Config

Extracted

Path

C:\wt70e7-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 computer has extension wt70e7. 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. [+] 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/B52B4A891FFCC5A1 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/B52B4A891FFCC5A1 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: +VDtIHcHz6gUDFedk8JfgOXf/NV2/32CicBtjuvXWmO/QIGJLl5xII77I8erloRD qBdxRoADDXsVnkjCxIkSRnhYZO5sYhv52hAgT+20Rpso1O8r+kk1tNTCra/rpwqX FXnwGcqcBS5xx9rbd1BWeRa9S1ehAboXMCspFmxcGHyk7K8ykdrqvEC/mgzHn3tp PLSHa1f5GTQY03xs50imWJcAFOi7rejEGkG8MhwW1kDhi1FbO3Cv7J8LjUVfEBAm ojlaukfFT82OUOMr85nFE1cCWjT+55E/TJav1qCeR/+s71si/pstf47CD+19A42S VORKx4/xFM7HvEQW50vcGwvBOzJ8+DQbtQE0MXhjQlJMjSKO0QgnHoSAy+uAEJfh I5P/vjzSbMxfQuvY+s1UJ1/c0GANMkq33DaKs4NqUNlBmnibeJ/8yr78mHsdFqfv 4uYJdPCjccYNiPwjAVS+FiA3oC6bphmU3JDZPDDkKTWf8x3wIeFoyy24K264o/4+ R4Yck3OzMeO8nz6igtI58oYcD3CnnHjLijsGREqTH2rMISnWLTLS2yNfkWBvwEDi elghR2ugwMsILbOXj26IubEf5L8DtyYsDaA4Bun1p8DUadWsZPgKV7Y/Jjz992o2 HerIdK2FnAcBPxAT9PSGWAyO32L9Rgs6R4WDJUnnJ/tvxwQfsSsM04TVQv60Nb3H p4hmHZeZjSaQpQuck8WlmWaXIu9TkkJrgJrehHbaEpd/mphaxa9RXcHw/+CVUI5/ Ks5Tbg8CalpW6gHljqUtYxM3tBeTRCdTg7ad9S/WJkSQJ/kdjPI10BzG4n3gsg6N QEDd6UrcrZexfqnwYcla+3D7SdDyGnCFQkaB8BHhc+MUqd/E9VYf04IjIF+3oVo6 WsmoSR1dpz4voxCJdVtzo/vPsCmyob517PjcKLS2EpDYAiBJpFpuLgUBBxudGV/d zoG0xQPnwQv7bUqGGsROU8WWL1qIB49FKRZI9Kv+asEftDKxtJSCEulUbhT1Pbyc BkuMPubNd/3Z2nQT2mYV8e88VYz0MM1B+lZ9HCzxX7RKZp3JdzxGkM/q3m246b2k HK4TD3ZuZMX+yXOBdz/y0xSShlr+rQUsVzfwhwFVzyJjUZSYo+W9t7TwfCM= Extension name: wt70e7 -------------------------------------------------------------------------------------- !!! 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

http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/B52B4A891FFCC5A1

http://decryptor.top/B52B4A891FFCC5A1

Signatures

  • Sodin,Sodinokibi,REvil

    Ransomware with advanced anti-analysis and privilege escalation functionality.

  • Blacklisted process makes network request 100 IoCs
  • Modifies extensions of user files 11 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.

  • Modifies service 2 TTPs 5 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Drops file in Program Files directory 17 IoCs
  • Modifies system certificate store 2 TTPs 7 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\file.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:500
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\file.dll,#1
      2⤵
      • Blacklisted process makes network request
      • Modifies extensions of user files
      • 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:1152
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3608
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:3948
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Modifies service
      • Suspicious use of AdjustPrivilegeToken
      PID:580

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/1152-0-0x0000000000000000-mapping.dmp

    • memory/3608-1-0x0000000000000000-mapping.dmp

    • memory/3608-2-0x00007FFE99A10000-0x00007FFE9A3FC000-memory.dmp

      Filesize

      9.9MB

    • memory/3608-3-0x0000023224A90000-0x0000023224A91000-memory.dmp

      Filesize

      4KB

    • memory/3608-4-0x000002323F940000-0x000002323F941000-memory.dmp

      Filesize

      4KB