Overview

overview

10

Static

static

10

fd164c4c12...87.exe

windows7_x64

1

fd164c4c12...87.exe

windows10_x64

10

Resubmissions

23-08-2021 11:12

210823-681sdqb6fx 10

29-06-2021 23:44

210629-4zlddtzv5e 10

Analysis

  • max time kernel
    150s
  • max time network
    164s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    29-06-2021 23:44

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General

  • Target

    fd164c4c121371f94cfd3a034ad8cf8edc7c0f7141a8f4c9da1683d41b212a87.exe

  • Size

    122KB

  • MD5

    fc9edc350d7ffdcb9e53390dae26ea5a

  • SHA1

    06b1f63eb58202a630cfab82c608111a53177db3

  • SHA256

    fd164c4c121371f94cfd3a034ad8cf8edc7c0f7141a8f4c9da1683d41b212a87

  • SHA512

    84b377ea7f5b066b26f2ba60d3b9dc7fbb088d2f0cca16716bc99fc7bfcdd6f1451bcf3b134b925c090f291bb97fdc5f589dd645795e4d1e5c124a316756c86a

Score
10/10
evasionpersistenceransomware

Malware Config

Extracted

Path

C:\2lkjf4-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 2lkjf4 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/62B33D67A15B504B 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/62B33D67A15B504B 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: VXwNnVCK2xS90drfKkf94Ueavapqhj8fEwRU0KFHfJFvA0XVNrYTBa+CbxLw0o4a NqtAFsFXg/he5qvxBw2pqWqZPHDsETunu5CAhkmpp2VjhguIIj1GGKXmAkq4mK51 CmV9O3+MViwVknsIPx0e3qXrQxD0xrjf3oNz84oOwLNclSI7NM61pjuwmROw45xp /YEanbia9jA9wWnazMrn4KXbf2n2g5JeB/uoaKe93ajzJLg95uWtDCIOe0AXETpi uEzR8Zwg/7CyUTYQnyLgiBKyp6Ie8P1RJB4nQOwe/tIFyKbFp28B++DxKZBxi2YB NnN87sAKyxVT4yUBPQ0czZtoHgVfypCOw5Jco1tPMJcQnNj6q/dezm5JVkgi3bAJ GZMiTFSBa2Zk60byXcABAgEjC8e26ZDfGnOm8XbkVCCOjvcAfQa762kFDWaemIoP bt2gABX++kdu29WjLR/7c4TXWBF+uL8hT74CpDNeQKT9Q3e9trw9V1oNlVkTFgbl ckbcpLyX6/91RsJrHnZU7HtO6cwoU6kIbAec7rLVvUeHummarZpTYJYllQs5rELw +32DnWLR6zStYW+0pe4+VZeXcu2iyWfwMOtrzGgF4fkxVC93BGUzB8etntac5VDq Kx8CVo2qt1cku5q3el1pqsdqrKZyPsFL0knUJSnxX2IPXxaV7LVwTAWMApMhjBlu zrS8ZV+SQWQfw6lOYGzdmk+dfBT98No+PD9ZsyFl31So6ov+sSfna04Be1MZaSXu yigRlv9bDk/ntw/Jm0CzA8K9gAMcQvp5P3Z0dsmaRBvU3Cxemxmx9c9/3PDFQnwJ O5MRHl0udLLTWP7OMTIUTgh6m4EraKiQ991ztbsqfhtkU6JDZhkCIb8xwH5jfCp2 z8HQ6rx1xI/4oR8cY2Z2kHhxastqu22FDoza6NewloMg5N/hsvxQYLL5WgZOhHvI dodmChJL1cKLh0tAfaGof4hQ8+ki62szCWlIK62zHgAmNJh81fF20uS4JiT3g5VN T12t1pIuMbualA/XqW3tgrL3l+FcKGoSY3l5c8ixW8GaGjWlUsFMwro0agNNP/S2 RMYIEfpb7QsJuoja8xVOXeVTq0h7+3zHaeI97TVdD5TLgZdKIrHPWjQ78veQoFYN +HXaRg5AZCidKSM1k1EMb+I+EEniB1pjRzHckrMO7C7lMFZmxVqoAK18/u/4bGGD FKYAoAili6KG8VXGjTJ3ULBQeLHRy/fSB8YoyVKsngkbLvweoyvCiU1lyTNJb9/l /1VvvgWZ ---------------------------------------------------------------------------------- !!! 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/62B33D67A15B504B

http://decoder.re/62B33D67A15B504B

Signatures

  • Modifies Windows Firewall 1 TTPs
    evasion
  • Modifies extensions of user files 8 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 23 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 10 IoCs
    evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 3 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
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3952
    • C:\Windows\SysWOW64\netsh.exe
      netsh advfirewall firewall set rule group="Network Discovery" new enable=Yes
      2⤵
        PID:2940
    • C:\Windows\system32\wbem\unsecapp.exe
      C:\Windows\system32\wbem\unsecapp.exe -Embedding
      1⤵
        PID:1548
      • C:\Windows\system32\vssvc.exe
        C:\Windows\system32\vssvc.exe
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3632

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • memory/2940-114-0x0000000000000000-mapping.dmp
        Download