Analysis

  • max time kernel
    144s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    05-03-2022 19:23

General

  • Target

    9a18e445b1dc26e179e43bcc64a8c4580a300fe0ddfa02a1abb9d6380ce96326.exe

  • Size

    4.6MB

  • MD5

    3f1c123e7a80fef58cf0d2e55f5a74f2

  • SHA1

    4dbb92b7af113b25c4fc1c4ce75fd1e8800a82e0

  • SHA256

    9a18e445b1dc26e179e43bcc64a8c4580a300fe0ddfa02a1abb9d6380ce96326

  • SHA512

    1963b1aa61c6ce561d00f6db6221b7381e28fc02eb1237320e133aec6d5e0e13cc72151a9033026cf8269cd828ec7de3568f2e8f02509a75a93b8fb413917452

Malware Config

Extracted

Path

C:\Program Files\7-Zip\Lang\HOW TO RESTORE YOUR FILES.TXT

Ransom Note
Hello! All your files are encrypted and only I can decrypt them. Contact me: [email protected] or [email protected] Write me if you want to return your files - I can do it very quickly! The header of letter must contain extension of encrypted files. I'm always reply within 24 hours. If not - check spam folder, resend your letter or try send letter from another email service. Attention! Do not rename or edit encrypted files: you may have permanent data loss. To prove that I can recover your files, I am ready to decrypt any three files (less than 1Mb) for free (except databases, Excel and backups) HURRY UP! ! ! ! If you do not email me in the next 48 hours then your data may be lost permanently ! ! !

Signatures

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies extensions of user files 18 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Drops startup file 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in Program Files directory 64 IoCs
  • Launches sc.exe

    Sc.exe is a Windows utlilty to control services on the system.

  • Interacts with shadow copies 2 TTPs 1 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9a18e445b1dc26e179e43bcc64a8c4580a300fe0ddfa02a1abb9d6380ce96326.exe
    "C:\Users\Admin\AppData\Local\Temp\9a18e445b1dc26e179e43bcc64a8c4580a300fe0ddfa02a1abb9d6380ce96326.exe"
    1⤵
    • Modifies extensions of user files
    • Drops startup file
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:396
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\prefunylucoebincll.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1664
      • C:\Windows\system32\sc.exe
        SC QUERY
        3⤵
          PID:2512
        • C:\Windows\system32\findstr.exe
          FINDSTR SERVICE_NAME
          3⤵
            PID:324
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\ympbqm.bat
          2⤵
            PID:2244
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\ejxbuwympbdxbhhldum.bat
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3608
            • C:\Windows\system32\vssadmin.exe
              vssadmin delete shadows /all /quiet
              3⤵
              • Interacts with shadow copies
              PID:3888
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\dveupwr.bat
            2⤵
              PID:324
          • C:\Windows\system32\vssvc.exe
            C:\Windows\system32\vssvc.exe
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:3472

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads