Analysis

  • max time kernel
    160s
  • max time network
    165s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    24-01-2022 01:49

General

  • Target

    73dd3cb487dfb863304d9f6d79f60b2ab4adbd162e460a2210b4a6abf049ea53.exe

  • Size

    164KB

  • MD5

    4ab0b297f4c35399577557283efcb1bb

  • SHA1

    1ce1fb6b0fe56f682ecaded6a6267183f6b7a000

  • SHA256

    73dd3cb487dfb863304d9f6d79f60b2ab4adbd162e460a2210b4a6abf049ea53

  • SHA512

    43e0c81ea6970faeb6cda1b42d59366437d2f2024d9b49c8f16353df866f25a55fccf3bb89bd1daba7d5a82be57fc1eed6f8e1d1eaa0c63a0bd6a6c5ec43f559

Malware Config

Extracted

Path

C:\91s3sd53-readme.txt

Family

sodinokibi

Ransom Note
---=== Welcome. Again. ===--- [+] Whats Happen? [+] Your files are encrypted, and currently unavailable. You can check it: all files on you computer has expansion 91s3sd53. 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/0290E5E11B6BB381 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/0290E5E11B6BB381 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: LomxSXbjAzt21qwDRj3WNki0pxeWWJd5G7L3LUhZk4wKw0DQKnQwGhW16dmbJCLq EfmLbBl0tTd0dey9wr5m7AE3MMzqGp+RT5zJ6PbSyz8WWbt46MHqZ0Bo6SS4faoy JTHdZTE8j3+cVn0DTVmwGyAj9kOhiGApxSmBiNlX5fu7nDJIz5nWSHQ1kFq9LUZX IJ/FOGQFCMaCyIUazRB9zqyBlKQBezKyURHGDlK5Brb1Y6TzWo1QDnO+mM4rjrVk d1Th38FYz2UoiOygQaFLr+jnydV6ussMfdESBNHfSCaYLP50JyRnXBEeiRsFjqsy /1nYPLKXuVxeEB+m17pqx4KDttFn0NaTjMkAYBCTv3duJxtl+yhZ9+Eqv2cLcrCe PeFh2qsVmBUwKGL4aQk+udN+3/lf1egrGQ1wFRx9oYTWl0IatCm7arbfjOBeQMMk d22mdOx+6n/GvEHsefa7gwXxY4i/LgQ8k9AmW7MUs4DmPBDzELo5Adn7lCXlIooB uGdFiNORNnFnkcHnMQ6h22G6xi+3V7QcOj7b0FJGZG5LeBwHC2VmVhEsdTSFFBAS C5oSljDKHzYwhvh7W/I2zCAfgoQQoT6v4iMlzaDTPDZvcqG6WqwfCErXQ5LjJ34D Ybv6DVne4fyv4TEJjkPbMYXefgGHRzs79w+lEv1L8UXIGhtKH4EkD1Hjlmry+YVz Tf6hP7r415VGGnzyhiwvv0xScJrgP6VQmOQFi8R2wUdj/STuym8xgwcKwsbC+Mxv KPzbRKIhGc5SoBvZ7nRoFjUNkX7ndDptxOFGzQ0kNAyNUD1FlrPIa2KSC0gxzagu ETiZOyAseRHr+AObQEEKVOsNnuRZk5RJ18hYSmlF3WzT+m1T142VP1NT11LFi+zx vAQbrZgHvCSO0VxBtAJIjdakihYrituV97bbEzJg7AhL6eXUY0VAKa7fHPNYBNq9 dLvDeO6WRMIaX0rNeRb9zmP2Jp8IkjPTJBRMhZeZbaNgbwKJ7CjvXnF/Dn75tB9l RLdOMPOU2JuDKFPtycNXYGNexDWEo2RR7NZKE2dwN1twM1y/2w/HYJ1VqxXadxvq u++fdKIHxPVeoT0v/6a5EzEo5kXqKPIHXbWSJX+Aa7Ac+q26ORuVEc5IsNA= Extension name: 91s3sd53 ----------------------------------------------------------------------------------------- !!! 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/0290E5E11B6BB381

http://decryptor.top/0290E5E11B6BB381

Extracted

Path

\??\c:\vcredist2010_x64.log.html

Family

ryuk

Ransom Note
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I�X`��������xD�'�R:��ɮ/�9��>��q{�r��ޠz��i"/����>#�3��U�k{�>�=Y�� ���-Gx�����)���F�w*�6���@�o������H��g0G����`��� -�W����=���b�Ѣ3��l�3���|�bi���\h~7A��N�����w,߬�Fp��� P��h����~�,ՅSF��ͅӮtts�t��\�af�<R�x�gB�H~�����muz��դ���#�l�r�(�P�q�ԞЏr�l w�B��ie����*�c[�_���\9�#��,����!�65��d�8���8z����Sꅯ�����z ���-/3pl�����w�fT�9��{������"��GE����<�d/~IJ�/]YoC���~��@�P$��(����oW<����XWY��qh�5G�����4N�@h��o���¬� |ʳ�������YM1�j���B�۠?xm ���t8�Vb?d �A�t����F����^�ǩ���B���0]��;U�"��q�(v�ǝ�p�z��y0�J�&%0��H\����yB{Y���f+c Wy�"���\�V��[�����p64��a����Z����_N���4հr�����q���Q�D����JD�>x�W�rό���)�5#\��q>_K��f�3��t��,)3���l�[I3�n���rOŒc=�з!)Y����H%Ei�#s�b���AD���]��������Bc�TBTJ��s��Ж_c�v)U��e|#�eF��Ni�P7

Signatures

  • Ryuk

    Ransomware distributed via existing botnets, often Trickbot or Emotet.

  • Sodin,Sodinokibi,REvil

    Ransomware with advanced anti-analysis and privilege escalation functionality.

  • Modifies extensions of user files 3 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 23 IoCs
  • Modifies system certificate store 2 TTPs 10 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\73dd3cb487dfb863304d9f6d79f60b2ab4adbd162e460a2210b4a6abf049ea53.exe
    "C:\Users\Admin\AppData\Local\Temp\73dd3cb487dfb863304d9f6d79f60b2ab4adbd162e460a2210b4a6abf049ea53.exe"
    1⤵
    • 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 WriteProcessMemory
    PID:2388
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2368
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:656
    • 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/2368-122-0x000002678E2D0000-0x000002678E2F2000-memory.dmp

      Filesize

      136KB

    • memory/2368-125-0x000002678DFE0000-0x000002678E090000-memory.dmp

      Filesize

      704KB

    • memory/2368-126-0x000002678DFE0000-0x000002678E090000-memory.dmp

      Filesize

      704KB

    • memory/2368-127-0x00000267A6590000-0x00000267A6606000-memory.dmp

      Filesize

      472KB