Analysis

  • max time kernel
    120s
  • max time network
    118s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/01/2025, 12:44

General

  • Target
    546fd85604b4e1a86d62696998881e1501a20fa1d49df027caa6cb73ca311a46N.exe
  • Size 926KB
  • Sample250120-pyvy8azldl
  • SHA256 546fd85604b4e1a86d62696998881e1501a20fa1d49df027caa6cb73ca311a46
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • nanocore

Version
  • 1.2.2.0

C2
  • motherpure.duckdns.org:3920

  • 185.214.10.57:3920

Mutex
  • bf795df6-2075-40d9-84eb-258bd0bbe097

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    185.214.10.57

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2019-02-22T15:40:23.303555136Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    3920

  • default_group

    MAY13

  • enable_debug_mode

    true

  • gc_threshold

    1.048576e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.048576e+07

  • mutex

    bf795df6-2075-40d9-84eb-258bd0bbe097

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    motherpure.duckdns.org

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    true

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Signatures

  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • Nanocore family
  • AutoIT Executable 12 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • UPX packed file 13 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\546fd85604b4e1a86d62696998881e1501a20fa1d49df027caa6cb73ca311a46N.exe
    "C:\Users\Admin\AppData\Local\Temp\546fd85604b4e1a86d62696998881e1501a20fa1d49df027caa6cb73ca311a46N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2456
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:3804

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/2456-0-0x0000000000680000-0x000000000087A000-memory.dmp

        memory/2456-17-0x0000000000680000-0x000000000087A000-memory.dmp

        memory/2456-2-0x0000000000680000-0x000000000087A000-memory.dmp

        memory/2456-3-0x0000000000680000-0x000000000087A000-memory.dmp

        memory/2456-6-0x0000000004110000-0x0000000004111000-memory.dmp

        memory/2456-30-0x0000000000680000-0x000000000087A000-memory.dmp

        memory/2456-1-0x0000000000680000-0x000000000087A000-memory.dmp

        memory/2456-28-0x0000000000680000-0x000000000087A000-memory.dmp

        memory/2456-23-0x0000000000680000-0x000000000087A000-memory.dmp

        memory/2456-27-0x0000000000680000-0x000000000087A000-memory.dmp

        memory/2456-29-0x0000000000680000-0x000000000087A000-memory.dmp

        memory/2456-18-0x0000000004110000-0x0000000004111000-memory.dmp

        memory/2456-26-0x0000000000680000-0x000000000087A000-memory.dmp

        memory/2456-25-0x0000000000680000-0x000000000087A000-memory.dmp

        memory/2456-24-0x0000000000680000-0x000000000087A000-memory.dmp

        memory/3804-12-0x0000000074132000-0x0000000074133000-memory.dmp

        memory/3804-22-0x0000000074130000-0x00000000746E1000-memory.dmp

        memory/3804-21-0x0000000074130000-0x00000000746E1000-memory.dmp

        memory/3804-20-0x0000000074130000-0x00000000746E1000-memory.dmp

        memory/3804-19-0x0000000074132000-0x0000000074133000-memory.dmp

        memory/3804-16-0x0000000074130000-0x00000000746E1000-memory.dmp

        memory/3804-14-0x0000000074130000-0x00000000746E1000-memory.dmp

        memory/3804-13-0x0000000074130000-0x00000000746E1000-memory.dmp

        memory/3804-8-0x0000000000160000-0x0000000000198000-memory.dmp