Analysis

  • max time kernel
    136s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    17-06-2021 05:11

General

  • Target

    fd164c4c121371f94cfd3a034ad8cf8edc7c0f7141a8f4c9da1683d41b212a87.exe

  • Size

    122KB

  • MD5

    fc9edc350d7ffdcb9e53390dae26ea5a

  • SHA1

    06b1f63eb58202a630cfab82c608111a53177db3

  • SHA256

    fd164c4c121371f94cfd3a034ad8cf8edc7c0f7141a8f4c9da1683d41b212a87

  • SHA512

    84b377ea7f5b066b26f2ba60d3b9dc7fbb088d2f0cca16716bc99fc7bfcdd6f1451bcf3b134b925c090f291bb97fdc5f589dd645795e4d1e5c124a316756c86a

Malware Config

Extracted

Path

C:\127fouk0-readme.txt

Ransom Note
---=== Welcome. Again. ===--- We strongly encourage You to pay your attention to this message and read it to the end. All Your files are encrypted, and currently unavailable, now all files on your system has extension 127fouk0 Before that, all of your most important personal and business files were backed up to our secure offline storage. We took them for temporary storage - but we don't need your files and we are not personally interested in your business. Our encryption algorithm is the most technically difficult and max resistant to burglary. Only OUR specialists can decrypted your files without loss(!) Any attempts to decrypt files on your own lead to damage them beyond repair(!) Best way to you will be consent to negotiations and mutual agreement between us. To connect us you need to download TOR browser and follow the link to begin negotiations.(You can find full instructions below.) We are waiting You and ready to listen all your offers and discuss them. If You will ignore this letter - we will have to sell closed auction all yours private files, photoes, business correspondence, documents and business files + with our analysis of your work activity (weakness of your business, financial violations and the opportunity to profit from this information). It will offset our financial losses. Or we'll just put all your files in the public domain, where everyone can download and use them as they wish. * For TOR Browser http://dnpscnbaix6nkwvystl3yxglz7nteicqrou3t75tpcc5532cztc46qyd.onion/ We are known as "Sodinokibi (REvil) Ransomware". For example, this article: https://www.coveware.com/blog/2019/7/15/ransomware-amounts-rise-3x-in-q2-as-ryuk-amp-sodinokibi-spread You have a guarantee that your files will be returned 100 %. And remember, this is only business, nothing personal.. We have a concept of business honor, and we can promise something if we come to a mutual agreement: 1. We guarantee to decrypt all your files in the shortest possible time 2. We will delete all your files and forget about your company. 3. We will show your weaknesses in your networks. .-= INSTRUCTIONS TO CONNECT =-. 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: /mLxn4z290T+9mapAcm8fE7VEtFlpfKu9+j2PYml5XAn3Lqd3UwkN6R3JoGkuowo oJVe3Sa5s2y0qFnGFdLpu9Npd44gxdl7mKa+tM8XsOMDD5xooaQeWKtBOY+e85lG B7c+j5Gi4+v1vRmbWqueTKq/EuHmNoBPFiGBVDw0NbbE94ApH2a/PdThTs4mz1vf z+FuknmMvxmGC7CUfy1wG3Lt7oWYv/d67qrVHfamsCFB9gRLZSQDGCvQzkj+RyGH Imd1tjBJVIDmcgXL0+y16odoWigabmhT2CsOSTdPniqR8xXpnGLAGdtabVOt4OPU EAfnbKQaXuWt/0L+pUioD8SRT36pE5ZwN0/IVhqqI9dBg8lPN/Q/tkKKgJQyUahe A2fInbMux4GRRk38RbFCeQTQBA2l+IqoRarSJGlGy6YZUVLpK1dacKACWyRFlrcI kZ7M5IsB1tcpLoAqB0TzJxufcVNmFVs+kYDAoWvX5M2i/7gtKUtjkTdSnqZ3Zw75 uMFznBNclWvvVgkRmZZeGHTAZSSXll//GgGiDV0icirP8DiPH8o3+Q9OPfxWo5n4 wViBHp2+C4+xtjkGF6/kDFKg9ASTYe1ZoIR3zBIsZjhAcAm/4tsxFTRyHspNU/bF gmV21bf/8/oFEZy7i4L727kBkz6E6vc/25FKky7zB0qzdzjDiYJ+7CnJtIDx5iXh fDf0Nwlp8L6wSy2btNOIrv+vmoJwIi/KFsFDZKlNkJOWBUn16yxOtMxF66vZCUoQ 2/pB1XKFgk51DFTM+CGw3iuA3IVEDPFyvlg9WtXtPRc2oYcaXV2zuU13KBs1t4Zh ByPVEBNo4vQtg6omHINcxVCjskvNJ5W6k9A5UFhMnP17A993Ba0vhQZ0dMFcYqkX mCmTnI+ga5F4ydLjKhUTVDN1g5y3qcz1mE1xbXHINsJ8LKCpEjgzgojoFPD7uyPI idljjauwieCwld9dBnFuGXOv353C7+x+5ed5OBzhSzjR7kTBDuDXcwYXGFcGVDpf 4EQCmcwOt6oKXLbsyEjc6+IPxWFhl+92h7K765HSr9cHIgx4FuVe0lWtN7M5Ym31 NqXObkAHXVCb4oH1F0GFaRxYgJmnbZTM61fyg/dj1HW8NkwFOeKYsldwbfup212k NqKGUnLOq66aTd36DsiowcBa//nPWS+rJlsOxxRwlXaJeuuGp3t2O9rGOIBGfQIc H1kbFMyJxhkmChpoU9p6g42KYhpkLre3Mj3o5yqBlEA28xsJvx6M1ecCBpICzu8R 8AEdG8M4xvLbv1cclkg45JK53nmy7g0Niso= ---------------------------------------------------------------------------------- !!! 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 your data!
URLs

http://dnpscnbaix6nkwvystl3yxglz7nteicqrou3t75tpcc5532cztc46qyd.onion/

https://www.coveware.com/blog/2019/7/15/ransomware-amounts-rise-3x-in-q2-as-ryuk-amp-sodinokibi-spread

http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/549065814122E616

http://decoder.re/549065814122E616

Signatures

  • 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.

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fd164c4c121371f94cfd3a034ad8cf8edc7c0f7141a8f4c9da1683d41b212a87.exe
    "C:\Users\Admin\AppData\Local\Temp\fd164c4c121371f94cfd3a034ad8cf8edc7c0f7141a8f4c9da1683d41b212a87.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:308
    • C:\Windows\SysWOW64\netsh.exe
      netsh advfirewall firewall set rule group="Network Discovery" new enable=Yes
      2⤵
        PID:1608
    • C:\Windows\system32\wbem\unsecapp.exe
      C:\Windows\system32\wbem\unsecapp.exe -Embedding
      1⤵
        PID:568
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:108

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/308-60-0x0000000075A31000-0x0000000075A33000-memory.dmp
        Filesize

        8KB

      • memory/1608-61-0x0000000000000000-mapping.dmp