Overview

overview

10

Static

static

10

7c8cb66e9e...34.exe

windows7_x64

1

7c8cb66e9e...34.exe

windows10_x64

10

Analysis

  • max time kernel
    140s
  • max time network
    146s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    17-06-2021 04:58

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General

  • Target

    7c8cb66e9e5ac66415273a48528e1b2f781003f2109b5d704254b9e91d745a34.exe

  • Size

    122KB

  • MD5

    9ccb042cb5bbfba12d009ea0b5f1a660

  • SHA1

    9f8ef2e46e22f12c889a8644a2129202602feeaa

  • SHA256

    7c8cb66e9e5ac66415273a48528e1b2f781003f2109b5d704254b9e91d745a34

  • SHA512

    deef869719908687d9f63ffc2ba37c7ee340b5ce2ad9ecc3aba8849a2a5562904ddfa1bb4e1a0ad9f43944e6a198022496921f7f0658553ff5e37d815699fce4

Score
10/10
evasionpersistenceransomware

Malware Config

Extracted

Path

C:\5kr68he-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 5kr68he 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/1C7D05152BD92BC9 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/1C7D05152BD92BC9 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: hbytM4StDOgwRwKlwZTS61gJtDk+RZxO/cqD8MFkECcd0m3T1z3W0qzCFy5ay4N0 mYmI7tblFr4YpzYCIqmXCnOqn16CmFobIF0MZuATW6oYJ3sHMLJC2iQeDSQgbVh1 yLV1CoMDN0yJ21t5Xai1itBc1Tf10aJKztwwzBIA7s45iKDbM1mpKNEgh8gT/cU+ /0XqYP8HAU9ERRYIPXSgbfmDLsQxl+ofh3rHPyIzUBNULgfji976Y6/fk2I8Zjcl CZota2b8DUlYxa1OQ3foGD+/2Q5K6/qAhLMtCTcBRrq8XZq3ObOXjwqyOoAZn3l9 N4YOzi1iga3J0W3l18ZtyVEUc9T9uDYdXlp+rw5xzm3NYNVwu3Fo3wmprXzU6TEI 1kh9L2FK370U6lpY6LO3xBoEUgEM1HEsAnIe4Mj9huC321tHrI+ytq838LjuJtph IU/QLUMp8URd814K0iUoO1fHEKwxlG5mIqkQzZO2y9UaLJJOwVPDxA5NOwN711Wy HQpwjgQ3C7VEShgX/pFCzR4hGHfPFsv5r1nrlY0dahfy6O/qPP4YkDOWVZOhJoza U813XAma4Uc+VsoRaRDJky/czHJZrZhx1cNcYoaxmc3OGofC//C4faGElss64GGn 3kutq6QlxkQFtrjosvv4+m4lYBWf7tmzRpA/CbriLmmVE3eVwx491TY5J1NdIGCH kpNrf5QvAYwaX/RpKSCFFFHzrDxiyx51W+RI9/w9JC6ngxZzXjHT7nPTybUai5hC UFdG3Q1ga+BCYckc9cbY36dd3inlCFyz9PVSCNnAh3XU7FuIUMK6eh722VT/LkMP 8prYfI5wWLZhVYRVhVhKLU8BNVYgSfUtifKGJed89iatIizWN00ss0e+fGnhTQQu McKUPguiuP7pSVmh6qdp+qF0qtSF3TSxqxIfHZr7jTmeghMn6IT17cZZIOwX3/vZ cWGgwOmTeeB7FQMUAV8yp4PFOkpi4JBvPnpTz3U6nroi7cdNRFPVW0NdXSuNaxpV dd772CPdE85yn335Pzexkk9HaPiaKkZSafgXXzGfSx4YWmD3y8zjWm3PZv6Milx6 b0XDCRk+Li6h1bsOiMHn3bMkVMw/e6bdM8k0TJx72EDapAyMz32F3WR8tLzfJxSn NBDiKKRtRtuyRzBVfGY1fONRZvhf1LKCXgYmIEhXGiSnAwc4qYPDGL1IQbOQX5I/ heeAiyI+1SNirc9bruf077ICfNVTuYkG2QbXX7pqt4uRVGZdKq5pbW+7oMPZZewn 6GOghA+GQno= ---------------------------------------------------------------------------------- !!! 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/1C7D05152BD92BC9

http://decoder.re/1C7D05152BD92BC9

Signatures

  • Modifies Windows Firewall 1 TTPs
    evasion
  • Modifies extensions of user files 4 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • 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
    ransomware
  • Drops file in Program Files directory 40 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7c8cb66e9e5ac66415273a48528e1b2f781003f2109b5d704254b9e91d745a34.exe
    "C:\Users\Admin\AppData\Local\Temp\7c8cb66e9e5ac66415273a48528e1b2f781003f2109b5d704254b9e91d745a34.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:804
    • C:\Windows\SysWOW64\netsh.exe
      netsh advfirewall firewall set rule group="Network Discovery" new enable=Yes
      2⤵
        PID:2648
    • C:\Windows\system32\wbem\unsecapp.exe
      C:\Windows\system32\wbem\unsecapp.exe -Embedding
      1⤵
        PID:936
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1312

      Network

      MITRE ATT&CK Enterprise v6

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      Downloads

      • memory/2648-114-0x0000000000000000-mapping.dmp
        Download