Resubmissions

23-08-2021 11:12

210823-5x9wmtn1z6 10

29-06-2021 22:41

210629-sx1ckbaqwx 10

Analysis

  • max time kernel
    1618s
  • max time network
    1801s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    23-08-2021 11:12

General

  • Target

    496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe

  • Size

    122KB

  • MD5

    a87f7cffde5ae5a31ee93010f6dd844f

  • SHA1

    381016c06a5af24bb285a1d2d1cb3d9aef3593ea

  • SHA256

    496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94

  • SHA512

    0895cd5dd27f0355587f491e54ef7ef794588edb3ea01bb59ff0f789e2e114745d10992570ec110d343cc2039c12b6b178621b3fdd956fcb1b6bc4ec476938d0

Malware Config

Extracted

Path

C:\7t10d2-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 7t10d2. 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/549065814122E616 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/549065814122E616 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: zVzuSbahMi6C38NRk1OEWhWFAg11DlRM1LRHDEcpLHcWmWQX5RH7HBkqNWUCwF70 ajIBwO43ySEpKyVgxrJI9Z9WbM1kN9dXHRibKOMYxvLEnR3hogmFjmEAZBTH3kRj g8WEbC9YhPpTVkH9YqOJXEi0pMiRBOwULRgUrxidjVrgr+IlHbiSkmGG4K9kPWKL KyGRy/odaaXN2F4gapkTFUNT+GmwsWh8BuLw87n7lmgcQbyKq7ci1wLgeZcK4Wsn KKbo0s0e4mku7vWSrSNz1zuHwVOP87kyh5iujvyRlymsX5K2gP1UHoNXIpFlF+2i 7W86WTWreR7aKtpLQMGmP2rxnuspzg0rUQnKZVrValNP6duR3qW8z99KXtMCXuzf Bsau3X8STktlPpQP1aiFWOtsSM6T2RA39PN57B7XZZeqZLcRkMhkobiS+AWPTk4h FsLOFBq73AK9fBquvMiklEx/2StYjtNsXGD9rHztsG75ScGvQL44LEkrm2ZyRGjf O0JgByc2SdLsTknzFkC435Hgq9uE7SUhl4gz0ieXbLHecQtw6BsoLWRNl1hcxmTd C7InHokNv/Wh2f0GsVVTcHn6WeFIr0HkbEP56WuEMewXr9P7GznM+7BqrNiwzAx+ Jv2K6OIpS5LfvRmPgVXrmIMqsB6UVuGyCObvhhzijShiPEvorhu3jDs6lWJxPJB6 UdQAQneZPBX9BPrXCkxlYLdB1LWLgd+h9nW7qMvd6Y0zLB1JcZI2CKPy8EW+KJ11 4rT5RDeWHGZnyFlKs5FATzOlcxkTcgYseM0iOMLxs3UEz+dogcRxvCHC3YmGB/z1 PH6/niG4AwFk2oYU8JPt/jH26wZq1uEsW80upr3acGXOx7HjPf5Daudk6lu3uScE xnW+l0Okiu+Vvn8nIsn6ycCthHOUyLut2ngvY3AI2JnMYFBKDgQyDujvp3gPetc6 iOLoCSVRfDPddJHmvKRGoMLG/eYBZgKxvkFHqpkK/9e+NdSqMNr//jFb/n/zzTVc Z4rAncMzgjC7JgxDEveaapufzPyLq+XGc+S3Va+jhyGZVU15UFcIn3iEhXV/eGs9 0MS+7a2jV3sE7CDF6IUN6NrZN4kP0CHJFoSX/f/YPK3y/vNnn3noIZvol0sBoIVK G50vYOlv+7Zd593efIL4XZmj7tFgR7rThPo4Y3QK5YHmjE2wUTBaw4uP46/v9fHw OEO62L0Ksna+14zFKE+9DSotrJNA0JXKZoINB9Zryej9oqirDftv8//umPixMNyd dVs4SnCKwr9eBSSVsa7NgjF/C0UG8Q== ----------------------------------------------------------------------------------------- !!! 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/549065814122E616

http://decoder.re/549065814122E616

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 Windows Firewall 1 TTPs
  • Modifies extensions of user files 6 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 30 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies system certificate store 2 TTPs 24 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.exe
    "C:\Users\Admin\AppData\Local\Temp\496b2fb067c9640106f02a678d39ca833a7f5c52c58c5914ee932446696b8e94.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
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1100
    • C:\Windows\SysWOW64\netsh.exe
      netsh advfirewall firewall set rule group="Network Discovery" new enable=Yes
      2⤵
        PID:292
    • C:\Windows\system32\wbem\unsecapp.exe
      C:\Windows\system32\wbem\unsecapp.exe -Embedding
      1⤵
        PID:1140
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1164

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/292-61-0x0000000000000000-mapping.dmp
      • memory/1100-60-0x0000000075A31000-0x0000000075A33000-memory.dmp
        Filesize

        8KB