Analysis

  • max time kernel
    172s
  • max time network
    171s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    07/02/2022, 14:22

General

  • Target

    b27d94521600c442e32f934365fd38936a54c395cca4f8727578b1f759d385d7.exe

  • Size

    2.0MB

  • MD5

    9dab96a19ce340608e3cde6691eaa76d

  • SHA1

    6864b6fe38285e6e8e98f8d9bc182b19f9528597

  • SHA256

    b27d94521600c442e32f934365fd38936a54c395cca4f8727578b1f759d385d7

  • SHA512

    7e696c149cae3e04b8888d9e3b0fc2087d65a2a9c4abe8b3012068b934e12afcc591d981f5c5bda39c5cd05e3f27c69ccf5e4e7a7e24fd2972fe72f35d03bab5

Score
8/10

Malware Config

Signatures

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

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

  • Drops file in Program Files directory 5 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 45 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b27d94521600c442e32f934365fd38936a54c395cca4f8727578b1f759d385d7.exe
    "C:\Users\Admin\AppData\Local\Temp\b27d94521600c442e32f934365fd38936a54c395cca4f8727578b1f759d385d7.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1568
    • C:\Windows\system32\cmd.exe
      "C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\CD99.tmp\CF8E.bat C:\Users\Admin\AppData\Local\Temp\b27d94521600c442e32f934365fd38936a54c395cca4f8727578b1f759d385d7.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2580
      • C:\Users\Admin\AppData\Local\Temp\CD99.tmp\1.exe
        1.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        PID:2860
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3372
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:1596

Network

        MITRE ATT&CK Enterprise v6

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