General

  • Target

    8dbcbae2519137f60138985a2dbc608ac867c81aa53acb30d77fa5fb3b5a0f31

  • Size

    254KB

  • Sample

    241031-ch6pkaykgk

  • MD5

    6c2bd80509268a8a12cbbb903172e992

  • SHA1

    a4efa65945aaa2e72492d6c90a058dc1d20f46e3

  • SHA256

    8dbcbae2519137f60138985a2dbc608ac867c81aa53acb30d77fa5fb3b5a0f31

  • SHA512

    66a3ba1bc30720b2efb08010b3d127a3e4f86e4dab38d4fd46fdba4180eff1210337da97fc8b0625157e1feed6cc94bf9bb5231c90004010edec12568ccbf14a

  • SSDEEP

    6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ4E:EeGUA5YZazpXUmZhPE

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

      8dbcbae2519137f60138985a2dbc608ac867c81aa53acb30d77fa5fb3b5a0f31

    • Size

      254KB

    • MD5

      6c2bd80509268a8a12cbbb903172e992

    • SHA1

      a4efa65945aaa2e72492d6c90a058dc1d20f46e3

    • SHA256

      8dbcbae2519137f60138985a2dbc608ac867c81aa53acb30d77fa5fb3b5a0f31

    • SHA512

      66a3ba1bc30720b2efb08010b3d127a3e4f86e4dab38d4fd46fdba4180eff1210337da97fc8b0625157e1feed6cc94bf9bb5231c90004010edec12568ccbf14a

    • SSDEEP

      6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ4E:EeGUA5YZazpXUmZhPE

    • NanoCore

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

    • Nanocore family

    • 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