Overview

overview

10

Static

static

10

cd50529f1e...f8.exe

windows7_x64

10

cd50529f1e...f8.exe

windows10_x64

10

Analysis

  • max time kernel
    156s
  • max time network
    141s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    24-01-2022 01:02

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General

  • Target

    cd50529f1ebd3bc934d761d2e7da23a4225e90020ee9cd9d564df3db0aef3af8.exe

  • Size

    115KB

  • MD5

    193f84c1f7e306144ef53b019e46bd10

  • SHA1

    4ab67ccfe975625992cf34c19c9bfc6d3a72ec38

  • SHA256

    cd50529f1ebd3bc934d761d2e7da23a4225e90020ee9cd9d564df3db0aef3af8

  • SHA512

    dbe6f8fac6939bd14b7d476504a806aeab8b9b6a655cc6cbf10179452dd6707ca2ce3fa72653347417340a81d6a23e81bc8255dd4717cdfa20a1dc4c3756a7f9

Score
10/10
ryukransomware

Malware Config

Extracted

Path

C:\o3r08vnz7l-readme.txt

Family

ryuk

Ransom Note
---=== Welcome. Again. ===--- [+] Whats Happen? [+] Your files are encrypted, and currently unavailable. You can check it: all files on your computer has extension o3r08vnz7l. 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. I suggest you read about us on the Internet, we are known as "Sodinokibi Ransomware". For example, this article: https://www.coveware.com/blog/2019/7/15/ransomware-amounts-rise-3x-in-q2-as-ryuk-amp-sodinokibi-spread Pay attention to that: "How Much Data Is Decrypted with a Ransomware Decryptor? In Q2 2019, victims who paid for a decryptor recovered 92% of their encrypted data. This statistic varied dramatically depending on the ransomware type. For example, Ryuk ransomware has a relatively low data recovery rate, at ~ 87%, while Sodinokibi was close to 100%. " Now you have a guarantee that your files will be returned 100 %. [+] 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/A0F1F924A1352797 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/A0F1F924A1352797 Warning: secondary website can be blocked, thats why first variant much better and more available. If you have problem with connect, use strictly TOR version 8.5.5 link for download TOR version 8.5.5 here: https://filehippo.com/download_tor_browser_for_windows/ When you open our website, put the following data in the input form: Key: A716ySBDVZ87dE66d1HCPE5C+7IUe1Iyfos394LYuVl8fwZ8BfrqgcjB/tpSQlXY r6gq2r/LouS96LIjeMP14XeRXHt6va4n8XIQZ95d2LEK0AUusgFypbCq03Mwj+K1 0w95Z4/oABPPBGBXk1QnXrne8v4+C8BZ/FbdvVoGrvmol3v/JfY6ENcVwj6KgBi+ ScuZv2t05gZRRqNWRPONXvJZvoyxTPV5KNT43B8Nz7AoRw8EegJVMsFk2QqJNbWN 4q8pGMZNBlym+cJFPiMvGeexl3TlFQIe+IU7p6BnYAXP5p1MceLuSf0jl7cAZRgn PAbDIOhhg56t6VHJ8VG1G1A0qlm6NuAC6kKts0vgsTJh/FO4zlq6YN5VwT6YG5al 5t6KIoKUW4429tdxaJ/plk2S28YT8EbDqG5/1h6daXDtMvUrt5BaLDdsF43eliWs Of1bIzMfzFd225wp9azkIOGW59CDWDUo0QQSA6i11LGNPvLkBzpVFVbF8Hsj3dIz LfPmknjBbhD252kaWK9c4HwEbSWtS5Wu/ax3Izjdgd9ZcziPTPigX3c92ihqvmnZ DWMfcsfMRjdFvWRONTXbbmkqvPaWyUINCQt4MwEVOUXU2JpLEEGT4nsSu0moG15m uIZh5LunI6MwxoxmHlOe/dGf+tMyWGEs+al7wXuFv+QOej57hxkmF8rN3EzzxIzr wE/qZS+GwO4BqrypQ3AZtNbpzrnFuNaunq4C4mQGZNF7qUSN9YSSDwM2H2aVcwPo ZG42FtcoBg8OdRWUhW03/o5o6qnpFLqFaCUHKTJ7GnGMYgbjzPWThcK4JfZll8eF jZkz0QKhiJPCl6/5/1RcUx2J+Z8WvUsJd8fGiQtL0RAw66cQRAY2fjyHlMl6T9eg 9+5g3VX/M4yC6HgkW+E3s7iuzkUs26FiLl4EXNV4brhzEaIeG5dhVtMU9K818ZsW l6hEdoP3nZrIVEwvn5sNr9GtlKeF0zQCYJIjVWUtkasT3Yj9KLvq8wI7dN4W0zzT 6pJDo0p0Iy3/ECNu7mW0/Z1u5Twjl6E6ZAxyllfXWEZabFfRNe1+EmcCM1eEY9AY kvnsoyI3V+yjad+R1mFgZhutYahj2sQxVuCjAbxxm1a6nznHjn8Aa4DJu9Pajw6V QKSUGsIWpCsmtKbn3CGJ3AzK9+3cL0Wy2SCUHocIKWOaGnxqTcB/pF5CDeVAWBbv s+jclOfszJCrS6BxniMXPqcLXC/YEzlFUWXRS36ajA6SnqRcZP0UVEh+Yc/yXHRs jD8Rfp9l1x0S+uLfRUvJ6hxnmwqcWdrZ Extension name: o3r08vnz7l ----------------------------------------------------------------------------------------- postscript: In case you want to independently decrypt your servers, we will be forced to put the databases of your companies in the public domain. MDF files: DB_UTILITY LeasePlus LPSecurity LTShared PaperVision !!! 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

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

http://aplebzu47wgazapdqks6vrcv6zcnjppkbxbr6wketf56nf6aq2nmyoyd.onion/A0F1F924A1352797

http://decryptor.cc/A0F1F924A1352797

https://filehippo.com/download_tor_browser_for_windows/

Signatures

  • Ryuk

    Ransomware distributed via existing botnets, often Trickbot or Emotet.

    ransomwareryuk
  • Modifies extensions of user files 3 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 12 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\cd50529f1ebd3bc934d761d2e7da23a4225e90020ee9cd9d564df3db0aef3af8.exe
    "C:\Users\Admin\AppData\Local\Temp\cd50529f1ebd3bc934d761d2e7da23a4225e90020ee9cd9d564df3db0aef3af8.exe"
    1⤵
    • Modifies extensions of user files
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3808
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:744
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:1168
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1248

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    Credential Access

    Discovery

    Query Registry

    1
    T1012

    Peripheral Device Discovery

    1
    T1120

    System Information Discovery

    1
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • memory/744-119-0x00000208F7330000-0x00000208F7352000-memory.dmp
      Filesize

      136KB

      Download
    • memory/744-122-0x00000208F74E0000-0x00000208F7556000-memory.dmp
      Filesize

      472KB

      Download
    • memory/744-127-0x00000208F7320000-0x00000208F7322000-memory.dmp
      Filesize

      8KB

      Download
    • memory/744-129-0x00000208F7323000-0x00000208F7325000-memory.dmp
      Filesize

      8KB

      Download