Analysis

  • max time kernel
    155s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    08/02/2022, 16:34

General

  • Target

    c5b5b8c520b0619549653a1e68d2318547483e59d39dc57352e2c39d84869d3c.exe

  • Size

    13.6MB

  • MD5

    bea610a4b1e7649e623ca842c7b5eabe

  • SHA1

    35c14688cf42428e3e811c5ac78f31c8665f635a

  • SHA256

    c5b5b8c520b0619549653a1e68d2318547483e59d39dc57352e2c39d84869d3c

  • SHA512

    539d8012eca78e207aeba36cf94e01a9edbf3b9c046d0b8fd0b9acc2886ac554513c81a7d24eecb4ea675495ed36315dee51b29106e54944431d00578ddcebbf

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 9 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\c5b5b8c520b0619549653a1e68d2318547483e59d39dc57352e2c39d84869d3c.exe
    "C:\Users\Admin\AppData\Local\Temp\c5b5b8c520b0619549653a1e68d2318547483e59d39dc57352e2c39d84869d3c.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3100
    • C:\Windows\system32\cmd.exe
      "C:\Windows\sysnative\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\C438.tmp\C439.bat C:\Users\Admin\AppData\Local\Temp\c5b5b8c520b0619549653a1e68d2318547483e59d39dc57352e2c39d84869d3c.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1828
      • C:\Users\Admin\AppData\Local\Temp\C438.tmp\2.exe
        2.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        PID:1936
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1404
  • 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:2292

Network

        MITRE ATT&CK Enterprise v6

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