Analysis

  • max time kernel
    2s
  • max time network
    123s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    14/07/2021, 19:16

General

  • Target
    2.exe
  • Size 2.4MB
  • Sample210714-rmcangttb2
  • SHA256 79b9e821bd34d0f1e5572eceb741caca3302cfaa4cfdf97c5ed78450355c4cbf
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Extracted

Path
  • C:\Boot\Fonts\HOW TO RESTORE YOUR FILES.TXT

Ransom Note
  • Hello! Dear, Die Stambula Fahrservice GmbH! All your files are encrypted! We have downloaded more that 1.5TB of sensitive data from your company servers. Email me if you want to get your files back - I will do it very quickly! Contact me by email: [email protected] or [email protected] The subject line must contain an encryption extension or the name of your company! Do not rename encrypted files, you may lose them forever. You may be a victim of fraud. Free decryption as a guarantee. Send us up to 3 files for free decryption. The total file size should be no more than 1 MB! (not in the archive), and the files should not contain valuable information. (databases, backups, large Excel spreadsheets, etc.) !!! Do not turn off or restart the NAS equipment. This will lead to data loss !!! To contact us, we recommend that you create an email address at protonmail.com or tutanota.com Because gmail and other public email programs can block our messages! If you do not receive a response from us for a long time, check your spam folder. Additional ways to communicate in tox chat https://tox.chat/ contact our tox id: 7229828E766B9058D329B2B4BC0EDDD11612CBCCFA4811532CABC76ACF703074E0D1501F8418
URLs
  • https://tox.chat/

Signatures

  • Launches sc.exe

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

  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2.exe
    "C:\Users\Admin\AppData\Local\Temp\2.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:568
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\esuiuotu.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:996
      • C:\Windows\system32\sc.exe
        SC QUERY
        3⤵
          PID:1768
        • C:\Windows\system32\findstr.exe
          FINDSTR SERVICE_NAME
          3⤵
            PID:1496
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\tlfegvlqgwwhn.bat
          2⤵
            PID:2884

        Network

              MITRE ATT&CK Matrix

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              Downloads