General

  • Target

    3764f61dd92f5f521bc221985d4aeed8049f19de67c017e1df6c29e27c5c650f

  • Size

    771KB

  • Sample

    240518-syb3wsad53

  • MD5

    556e43bc94adb1bd9b16ec5d7808934c

  • SHA1

    87faf1dfcc3428080ea06cacf3d5283332d4cdfe

  • SHA256

    3764f61dd92f5f521bc221985d4aeed8049f19de67c017e1df6c29e27c5c650f

  • SHA512

    2c6cf7bf0bfb8ad94d9fb4b30a1d2f22123e7b8ee1fddc5aad65eeb2350a38ac2bab38caa57889ccd4d0f3a06210f244842427cbea7e4afedbc57d5442436a4f

  • SSDEEP

    12288:dpuu6vpqDcNzugN6exufBRSg+5oRsahG38YwORAWtgc7nR5ItNdHz/6UCHny:dpiv8DGbODSb5oRsaM8Rhsb7nR0dHdCS

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

stanadmin.nhlfan.net:64599

Mutex

eb096d51-1ad9-49ce-92ab-d800105cf070

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    stanadmin.nhlfan.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2018-03-10T08:07:01.129925936Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    64599

  • default_group

    GOAL

  • 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

    eb096d51-1ad9-49ce-92ab-d800105cf070

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    stanadmin.nhlfan.net

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Targets

    • Target

      PAYMENT039039049CONTRACTSCAN.exe

    • Size

      817KB

    • MD5

      2f37625a143ed0614188a7d0695d27fc

    • SHA1

      c86cf55b8fd40911eea9dbdd3a9fa9cb9e609ea8

    • SHA256

      e607a09fa81e0a95499ccf098ff304066f0051a48e23cd1ec38ec65bddcc5228

    • SHA512

      76f12b0a521527d3e87c9d8002548fec7e9dde9220c8d2fec5ff8b564300d8e1c59517e97983d2623a6aec59b193aad235126da7b4073fd9bcfc6decafc47354

    • SSDEEP

      24576:j2O/Gl4qAmhX326dFl+/6Z7AMkycLZpNYq:czhn2U+/U9/qZpb

    • NanoCore

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks