Analysis

  • max time kernel
    157s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-11-2023 23:50

General

  • Target

    133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe

  • Size

    114KB

  • MD5

    77be32b91561d1ac5e36464766b7b0a7

  • SHA1

    9c72fe9c8e24b5c0bde50c71d74fb2586c4201ce

  • SHA256

    133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de

  • SHA512

    c8d0d6d15322172631b184acf5df86851dff7d8f15fde9cee7d0b7e4919433ec5b096f4079b5acba78d27dcfc42bfc2bcd3f184cb0a54c13b71aeb40f8ea4152

  • SSDEEP

    1536:FApx/1k2jbVnO3c+FpR5Q9JzY02pTmZ0ICS4AtebOMZzqFTj5vel1KkK3I:ck2X8M+Fp4vY06A2roFTj5vYc

Malware Config

Extracted

Path

C:\Recovery\04umsm-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 04umsm. 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/6EF327E2F29499A3 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/6EF327E2F29499A3 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: kxewLe/4IYKSkBLK/tB3J3ktfNxN/i8tdqS5pEi00dsYTdDoSVOxLAD0UmWDo2vY id0OwKSVunP+GMhHsWfKxyinHhkDkjvnV2Hnfj/5qmg3iRCKY9gBpvkEwvOKamaz yziZB+24nrEBq0FQ8AmCIkZliJEtt7RozRo2G5woF6XEYcSvkeOSBwIdLCnV8LW6 nSso3+hjRRXr7G+okZNqffZmnoxSdqaabZ1/5XqhwCWd/yTPO9eUrCpmDnOVxBBX D48R4mzqd3kgHjSydm06STPvTGDNzNhWIhuXSdZouYXA7oQxUlAYiZM+jQvFA7Yy /zbvJnCvMlJ6XOQF172c1r0YkuKtzNDxkzs8gBeGJKhlCFrQ05cWpE7YlTF1EHnJ NEs1tWH4JJ0URKsl5mq9ANtZ1qxvFocVPQcobVVP5uE9WVtwzlNGF9+GhUBMKqZx asnw2I+hEO+DSYb/cXuxcBXWcQ3QzfuEzRDpib3TglSh6hffc1QbtZZvZufa2Gq6 TUpkhUx4PvfkSEZuIFslvKlq7J5VRJSgptGpHYb9dgfEPUxDr9snXf4BZSbNsSuP qM+PbLHde0DXUQKs+w0oo8Fu0KZg6lXJYV6AaLrHQIn81RzqdXdWCxHWeyyjBh18 wOpL1yhVDiayCViS9KLqHzZP8WVtwsebm93bNBXXiAVfBu4saLzu9DahF1+qW5MW 6s/QCiJ7MCgykAeE3O5jw0RYGsDv925yp389n0qNbzu10EE+u9LfzbcUResSLMQd 6kgH7qwXTV/VsTJR34zJEwqBpK3jus5R7d473BNcCBt4eAJp1BO/qbFa3iVV+FGh 55zXSAvhImFme9/dU/pEcJxzhaGhGl+40THJg1EbZlb6eE6wy2qelonDWD8tOacL nofSr3yWnCXvPJI0cIG57kN64/EjGu1GpHjQzk7eb6v1rvybT7yWhSvM11XAKMTo 6FFU3q4X8UpG9YRpDx6k21jfBoXOctU9xSKO3CJXnMxlS+bHMzJ6+oH4iLf7t7RM W+nzVwYFlmNPb350ZnV4xzejvZ4DbNazfm0RpbioGWPcHWK9sJs+7S3q9eZI4qT9 wJVOVEhXT0LpmNoD/xAwNBcLNqdBOY+VLBPnLRmk+sn0j6yL8Ag0GBe/Atf0G/5q uBymoy3UuTPFOXSaCQB7CQ2iVg7X+jiih14pNNoLE5gLQ8H9ch8mwwqKj3ibLevL u2HyvCknIXI8pKMR+wFI1uhdfRj1TH8omd+MLNTl37CY2es+6UPRsBXvehRnVCfg Z89igzfhicLF5GstA27n5wIDiK6Osgy17YXLyVUuUzNGshANGwZzR6bfeo3ZLXhA EIvoFp3nS7pAGhKO6PsFPGVd75r1Rbfyz35ZFHDnXdzTasI2S9c= ----------------------------------------------------------------------------------------- !!! 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/6EF327E2F29499A3

http://decryptor.cc/6EF327E2F29499A3

Signatures

  • Sodin,Sodinokibi,REvil

    Ransomware with advanced anti-analysis and privilege escalation functionality.

  • Adds Run key to start application 2 TTPs 1 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 29 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe
    "C:\Users\Admin\AppData\Local\Temp\133bf8be0cf7003b83b03579970997d408a930e58ec2726715140520900c06de.exe"
    1⤵
    • Adds Run key to start application
    • 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:4584
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2228
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:2288
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1648

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Recovery\04umsm-readme.txt

      Filesize

      6KB

      MD5

      61eeff0ad8a495f2377d4d00b3ace3ca

      SHA1

      d3c4721ac0fc37dfa2276200c50dce668b2472ef

      SHA256

      e8ee4ee0aada45585bc257a95dbab38952bd0b87d79723888d9e0cbfd1ff1c4f

      SHA512

      b1f3511e672794b4f2ec487ef1688b281de5a97979ea7b4edba21958e667f81e82167a80b9c5aae38809cb14388844dcb766e1e63a449ceac0b7975a2bb41087

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_zgfvmpac.4uq.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/2228-5-0x0000026B3BC70000-0x0000026B3BC92000-memory.dmp

      Filesize

      136KB

    • memory/2228-10-0x00007FFC16C50000-0x00007FFC17711000-memory.dmp

      Filesize

      10.8MB

    • memory/2228-11-0x0000026B3BCD0000-0x0000026B3BCE0000-memory.dmp

      Filesize

      64KB

    • memory/2228-12-0x0000026B3BCD0000-0x0000026B3BCE0000-memory.dmp

      Filesize

      64KB

    • memory/2228-13-0x0000026B3BCD0000-0x0000026B3BCE0000-memory.dmp

      Filesize

      64KB

    • memory/2228-16-0x00007FFC16C50000-0x00007FFC17711000-memory.dmp

      Filesize

      10.8MB