General

  • Target

    71ffb4adaf9ddd9cb14cec83b4384b02

  • Size

    876KB

  • Sample

    240124-mk56xsgacl

  • MD5

    71ffb4adaf9ddd9cb14cec83b4384b02

  • SHA1

    380d074988f1867c3787a5490fb6ecaf977177a6

  • SHA256

    105337f9b1676a95f4d8d0d23ff07b507ffa0e092d131c99dedb0513d3e5515b

  • SHA512

    c4e000abafff243c53b1d74264f16ebf89006cb6caf8b9f8001864eaba3b2c883b2d7ac1e40fe6a45280b8ea1f179115f0dd5317316ff95bc6a4b652d2687bbe

  • SSDEEP

    24576:C9QyQidv1gCIbhXGFUQXqcgHTkOM7mo5oFCEkv:iQXibgCgoUQ6lTCosv

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

91.193.75.228:1985

127.0.0.1:1985

Mutex

76ab9a6f-655c-4b06-a052-5a2cb9e07a2f

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-05-07T21:13:54.381433036Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1985

  • default_group

    KingT

  • 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

    76ab9a6f-655c-4b06-a052-5a2cb9e07a2f

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    91.193.75.228

  • 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

      71ffb4adaf9ddd9cb14cec83b4384b02

    • Size

      876KB

    • MD5

      71ffb4adaf9ddd9cb14cec83b4384b02

    • SHA1

      380d074988f1867c3787a5490fb6ecaf977177a6

    • SHA256

      105337f9b1676a95f4d8d0d23ff07b507ffa0e092d131c99dedb0513d3e5515b

    • SHA512

      c4e000abafff243c53b1d74264f16ebf89006cb6caf8b9f8001864eaba3b2c883b2d7ac1e40fe6a45280b8ea1f179115f0dd5317316ff95bc6a4b652d2687bbe

    • SSDEEP

      24576:C9QyQidv1gCIbhXGFUQXqcgHTkOM7mo5oFCEkv:iQXibgCgoUQ6lTCosv

    • NanoCore

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

    • CustAttr .NET packer

      Detects CustAttr .NET packer in memory.

    • Checks computer location settings

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

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks