Overview

overview

10

Static

static

10

avi.exe

windows7-x64

10

avi.exe

windows10-2004-x64

10

Resubmissions

09/03/2023, 23:09

230309-244jrsaf7910

09/03/2023, 23:06

230309-23pdfscd4v10

12/10/2022, 19:46

221012-ygzqhsaabj9

Analysis

  • max time kernel
    98s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/03/2023, 23:06

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General

  • Target
    avi.exe
  • Size 2.9MB
  • Sample230309-23pdfscd4v
  • SHA256 f484f919ba6e36ff33e4fb391b8859a94d89c172a465964f99d6113b55ced429
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
royalransomware

Malware Config

Extracted

Path

  • C:\Program Files (x86)\README.TXT

  • royal

Ransom Note
  • Hello! If you are reading this, it means that your system were hit by Royal ransomware. Please contact us via : http://royal2xthig3ou5hd7zsliqagy6yygk2cdelaxtni2fyad6dpmpxedid.onion/12345678123456781234567812346578 In the meantime, let us explain this case.It may seem complicated, but it is not! Most likely what happened was that you decided to save some money on your security infrastructure. Alas, as a result your critical data was not only encrypted but also copied from your systems on a secure server. From there it can be published online.Then anyone on the internet from darknet criminals, ACLU journalists, Chinese government(different names for the same thing), and even your employees will be able to see your internal documentation: personal data, HR reviews, internal lawsuitsand complains, financial reports, accounting, intellectual property, and more! Fortunately we got you covered! Royal offers you a unique deal.For a modest royalty(got it; got it ? ) for our pentesting services we will not only provide you with an amazing risk mitigation service, covering you from reputational, legal, financial, regulatory, and insurance risks, but will also provide you with a security review for your systems. To put it simply, your files will be decrypted, your data restoredand kept confidential, and your systems will remain secure. Try Royal today and enter the new era of data security! We are looking to hearing from you soon!
URLs

  • http://royal2xthig3ou5hd7zsliqagy6yygk2cdelaxtni2fyad6dpmpxedid.onion/12345678123456781234567812346578

Signatures

  • Royal

    Royal is a ransomware first seen in 2022.

    ransomwareroyal
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies extensions of user files 3 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Drops startup file 1 IoCs
  • Drops desktop.ini file(s) 31 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

    ransomware
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\avi.exe
    C:\Users\Admin\AppData\Local\Temp\avi.exe -path C:\ -id 12345678123456781234567812346578
    1⤵
    • Modifies extensions of user files
    • Drops startup file
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3464
    • C:\Windows\System32\vssadmin.exe
      delete shadows /all /quiet
      2⤵
      • Interacts with shadow copies
      PID:2276
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1824
  • C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Public\Desktop\README.TXT
    1⤵
    • Opens file in notepad (likely ransom note)
    PID:6092

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        README.TXT
        • Path C:\Program Files (x86)\README.TXT
        • Size 1KB
        • SHA256 058d36320a6795759849643c65431a5206815dcf38f05df024b020d95820a66a
        • MD5 SHA1 SHA512
        Submit Download

        README.TXT
        • Path C:\Users\Public\Desktop\README.TXT
        • Size 1KB
        • SHA256 058d36320a6795759849643c65431a5206815dcf38f05df024b020d95820a66a
        • MD5 SHA1 SHA512
        Submit Download