Analysis

  • max time kernel
    139s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    17/02/2022, 02:45

General

  • Target

    5f88b8a047553a717d2674304233b5f3fce063f46b22b33b272a4296af2b6f20.exe

  • Size

    160KB

  • MD5

    ea930dacbcdccf4d29416392cdab6a36

  • SHA1

    b9f7505a3b100d524edae9488e3818080d338dfa

  • SHA256

    5f88b8a047553a717d2674304233b5f3fce063f46b22b33b272a4296af2b6f20

  • SHA512

    fea4ff24f3090be851113a98915d418d489184c1b421a38ebe8252f4905be2edf77018a4062351c0cbf27404feb1d25bc72fdc0478e09336e6c244b7d146094f

Malware Config

Extracted

Family

netwire

C2

kingshakes.linkpc.net:2017

Attributes
  • activex_autorun

    false

  • activex_key

  • copy_executable

    true

  • delete_original

    false

  • host_id

    Anjolaoluwa

  • install_path

    %AppData%\Windows\windowsupdate.exe

  • keylogger_dir

    %AppData%\Logs\

  • lock_executable

    true

  • mutex

    CSeLVtDF

  • offline_keylogger

    true

  • password

    Password

  • registry_autorun

    true

  • startup_name

    NetWire

  • use_mutex

    true

Signatures

  • NetWire RAT payload 2 IoCs
  • Netwire

    Netwire is a RAT with main functionalities focused password stealing and keylogging, but also includes remote control capabilities as well.

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

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 8 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5f88b8a047553a717d2674304233b5f3fce063f46b22b33b272a4296af2b6f20.exe
    "C:\Users\Admin\AppData\Local\Temp\5f88b8a047553a717d2674304233b5f3fce063f46b22b33b272a4296af2b6f20.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2696
    • C:\Users\Admin\AppData\Roaming\Windows\windowsupdate.exe
      "C:\Users\Admin\AppData\Roaming\Windows\windowsupdate.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      PID:2068
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:2008
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:1840

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/2008-132-0x000002D831C20000-0x000002D831C30000-memory.dmp

          Filesize

          64KB

        • memory/2008-133-0x000002D831C80000-0x000002D831C90000-memory.dmp

          Filesize

          64KB

        • memory/2008-134-0x000002D834340000-0x000002D834344000-memory.dmp

          Filesize

          16KB