General

  • Target

    e46cb8f9c54febd77571ca20cb26a243da6eebaec4f5de6564404fcfd81ad4f0N

  • Size

    282KB

  • Sample

    240917-k5s1zsverj

  • MD5

    485cf2b51b028e7c281c5c7f249578a0

  • SHA1

    b3f195e1a8f4a954d8ce313842ad3e6fefb004a2

  • SHA256

    e46cb8f9c54febd77571ca20cb26a243da6eebaec4f5de6564404fcfd81ad4f0

  • SHA512

    93d68ab032e9cb2db0a214628efa64484437616329ed8a0cc6d8dae4107c30151206d3577a737e50c72b3f6e4482284243b16461c5c550b8d05f56a78ae426ac

  • SSDEEP

    6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkf0:boSeGUA5YZazpXUmZhZ6SR

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

sysupdate24.ddns.net:45400

Mutex

ae82ab7f-db07-49ee-9d2b-76075d76f37f

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

  • buffer_size

    65535

  • build_time

    2020-04-24T17:41:53.492468936Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    45400

  • default_group

    Default

  • 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

    ae82ab7f-db07-49ee-9d2b-76075d76f37f

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    sysupdate24.ddns.net

  • primary_dns_server

  • 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

Targets

    • Target

      e46cb8f9c54febd77571ca20cb26a243da6eebaec4f5de6564404fcfd81ad4f0N

    • Size

      282KB

    • MD5

      485cf2b51b028e7c281c5c7f249578a0

    • SHA1

      b3f195e1a8f4a954d8ce313842ad3e6fefb004a2

    • SHA256

      e46cb8f9c54febd77571ca20cb26a243da6eebaec4f5de6564404fcfd81ad4f0

    • SHA512

      93d68ab032e9cb2db0a214628efa64484437616329ed8a0cc6d8dae4107c30151206d3577a737e50c72b3f6e4482284243b16461c5c550b8d05f56a78ae426ac

    • SSDEEP

      6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkf0:boSeGUA5YZazpXUmZhZ6SR

    • 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

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks