General

  • Target
    NEW PURCHASE ORDER AND SPECIFICATION.exe
  • Size 737KB
  • Sample220725-za94caabdk
  • SHA256 8dc19fdc6a2f27ae650d8868ddf42b3f9f9ce2cd517c74f7ba524656e2a68262
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • nanocore

Version
  • 1.2.2.0

C2
  • uyeco.pw:59066

  • 127.0.0.1:59066

Mutex
  • f8d3f7fb-a017-4255-8ee1-f7099245c62d

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-03-07T13:49:51.938097736Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    59066

  • 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

    f8d3f7fb-a017-4255-8ee1-f7099245c62d

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    uyeco.pw

  • 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

Targets

    • Target
      NEW PURCHASE ORDER AND SPECIFICATION.exe
    • Size 737KB
    • SHA256 8dc19fdc6a2f27ae650d8868ddf42b3f9f9ce2cd517c74f7ba524656e2a68262
    • MD5 SHA1 SHA512
    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks