Resubmissions

23-08-2021 11:13

210823-b34vrz3tqx 10

28-06-2021 08:37

210628-da5jtgxlvn 10

Analysis

  • max time kernel
    1734s
  • max time network
    1806s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    23-08-2021 11:13

General

  • Target

    892083cb3f064e9434df593bfdf6f00e48ab68778bfca8d9a64d697d5d19fe5f.dll

  • Size

    119KB

  • MD5

    52d280d45daba695a565e25cdd2863d8

  • SHA1

    60c525e2a52137514d3dfa72e8a49a0d4da98759

  • SHA256

    892083cb3f064e9434df593bfdf6f00e48ab68778bfca8d9a64d697d5d19fe5f

  • SHA512

    8304713277dddc0e9f899d3f91b1a8e33fb654945bd71f45185dcfee70a681df337d53df891272003ec93827aa2d5db77a9c652a3253409fe65b42c368a55701

Malware Config

Extracted

Path

C:\o2cb495rx-read-me-KRBL.txt

Family

sodinokibi

Ransom Note
---=== Welcome Kubasta Bickford & Lorenson ===--- [+] Whats Happen? [+] Your network has been penetrated. Your files are encrypted with strong military algorithm, and currently unavailable. You can check it: all files on your system has extension o2cb495rx. By the way, everything is possible to recover (restore), but you need to follow our instructions. Otherwise, you cant return your data (NEVER). Also, all your info copyed to our servers. If you do not take action to contact us, the data will be published for free access to everyone. As soon as we receive the payment, all data will be deleted from our servers. [+] 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/E491EFEEBAD66778 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/E491EFEEBAD66778 Contact with us in chat on website. You have 3 days. If you need more time to make a decision and collect money for payment - inform the support chat about this. [+] How will the decryption process proceed after payment? [+] After payment we will send to you our scanner-decoder program and detailed instructions for use. With this program you will be able to decrypt all your encrypted files. 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: JXiH9zS2Ky8hN0G7mE+Y5e3AFTiFWnRZpZ3BH4fWHuhI24CQscDYq+4tIOxsP04P JTKhcpoDFi1C6sR+i8rCGN3pt3iWBxnfWTYHvEYbvqhWGHb1usUt52CbggtTQsXh bS/HwMt1rjiotxtdmutyR5OiAHpSHbA5o0aLC6xVVpbLNdBduAjlVuNG9HmoNlti k+nnuaCguB5K+lb2HAVhv18aBS8M3RwEFKujpTrEdCsZ03h1ERQbac0Hl+uutczB 5DdDFHpwU4VA8Y/pOVYqLNMy+41pS90MS5RKOsopEMC/TlRcAXKWOMHsTie7ztmd +P14Vmrru8AsICP3D4cN2CugP50HFHyFdOqr6GdqSISjupxsYNJLiFWp9obcN4hu MOgWZV4CTrloAiYh0qP+GQn355gekjEGOggZOknDk9UV4sd12UDWknxKgwdKtWoS 3FFYZ4uiW/NB1RYxSDrk+/1unmfv77RHyfUfW8Kd+oSash/cLmy4KR5w2twEQ342 vISGFFmyQB2FRR2A6gpc90Tteo8hZhDSvCe/5rK2egT7xoQzAA1PXaTFvCy0QPkb 7Ill4gqJCY9pdcdxS+ZFNOm4SWMXEtdnGX7ybhUuhD5h3XJBcy9fFhBd0bnRvrp5 BMbClHTFUgkwDQEpmLsnLEzPS4m7c6YCIAJs52tR6c94vOGJa9xRlgYDv2y9JEZe BJo61xhFhlrHZJPBmXRV1obqTi2EgDOMGGOo4TAXTqksoy/klxtHNufhKuC1QJ4E JS3kFnj5UDbrO05ICyQKDRHXrfkMEMVIGalBebGcPcAzXGcfOK2Q/tZdZ52i3l8S OZBXNEM/ZJTYwJKEwI52Mi9vBin8Zeu7F6zUZFUs5zmVru73Nwy3IXws8aSdPISW y0TUbZr7tHziiuG/mfaj9PLH05XKjq9EsvhPeSW+2tggKdfB48hiEH/TtEr6yl4+ fWr6Ys2juSkdqg8O4zyNwxA3Or4IfzAEN+yynVqwUF2gMj7x/cY/L7H+8YpJiVYx QVi+5TrcJnjIPgA0REbj+NCMZg6G6iSS4YVOTY4Pxg6dmK2IRXuwbfFyaTAvAfXp cQZ2bhpuXI8tGfATX94feiz77ofIctfUlCSAm0dxSczhemDMXPLLTeDyXrPH811M SqcMtdJWS+tAcSQcKfvqfO+bZkb3ZpqoOJYtVa/Jvz6GKMO7jK8YSy7DuvBjY9e9 ug5YEGTewOYtZoNNx4ygIqnLQ0gEIcdt2iLmMQzCMFbNReASb+sTaBOhWHcuZQXd S47OEb6ALAqmLANVuQd3+RbnqQWY6kDpqpWC+A== ----------------------------------------------------------------------------------------- !!! 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/E491EFEEBAD66778

http://decoder.re/E491EFEEBAD66778

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 extensions of user files 5 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.

  • Drops file in System32 directory 1 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Drops file in Program Files directory 20 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\892083cb3f064e9434df593bfdf6f00e48ab68778bfca8d9a64d697d5d19fe5f.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:880
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\892083cb3f064e9434df593bfdf6f00e48ab68778bfca8d9a64d697d5d19fe5f.dll
      2⤵
      • Modifies extensions of user files
      • Enumerates connected drives
      • Drops file in System32 directory
      • Sets desktop wallpaper using registry
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1196
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:1292
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:612

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/880-60-0x000007FEFBD61000-0x000007FEFBD63000-memory.dmp
      Filesize

      8KB

    • memory/1196-61-0x0000000000000000-mapping.dmp
    • memory/1196-62-0x0000000075801000-0x0000000075803000-memory.dmp
      Filesize

      8KB