Analysis

  • max time kernel
    148s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/12/2023, 12:58

General

  • Target
    37035aa02a65b1b869898cb611d37686.exe
  • Size 166KB
  • Sample231231-p7vd2sgbf8
  • SHA256 4c01cc3dd96c524054207f6b37a334c62549857f28c0286cc8dfc30b6d388e34
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • netwire

C2
  • needforrat.hopto.org:3360

  • needforrat.hopto.org:7777

Attributes
  • activex_autorun

    false

  • copy_executable

    true

  • delete_original

    false

  • host_id

    HostId-%Rand%

  • install_path

    %AppData%\Install\Host.exe

  • keylogger_dir

    %AppData%\Logs\

  • lock_executable

    false

  • mutex

    qRhguWXi

  • offline_keylogger

    true

  • password

    Password

  • registry_autorun

    true

  • startup_name

    Crack_Windows

  • use_mutex

    true

Signatures

  • NetWire RAT payload 4 IoCs
  • Netwire

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\37035aa02a65b1b869898cb611d37686.exe
    "C:\Users\Admin\AppData\Local\Temp\37035aa02a65b1b869898cb611d37686.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1020
    • C:\Users\Admin\AppData\Roaming\Install\Host.exe
      "C:\Users\Admin\AppData\Roaming\Install\Host.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      PID:2200

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Host.exe

        • Path C:\Users\Admin\AppData\Roaming\Install\Host.exe
        • Size 166KB
        • SHA256 4c01cc3dd96c524054207f6b37a334c62549857f28c0286cc8dfc30b6d388e34
        • MD5 SHA1 SHA512 SSDEEP

        memory/1020-8-0x0000000000400000-0x0000000000433000-memory.dmp

        memory/2200-9-0x0000000000400000-0x0000000000433000-memory.dmp

        memory/2200-11-0x0000000000400000-0x0000000000433000-memory.dmp