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General

  • Target

    tmp

  • Size

    314KB

  • Sample

    231011-yzmhxaaf8w

  • MD5

    0f82973b8fb033ddf1737a08ee7af0ad

  • SHA1

    617aaac77fee3dcd155dae0207d45297563b9b91

  • SHA256

    61dd71f5c77595869823f58be7c12eb1d2729d718880d596bf5ac54a789854d3

  • SHA512

    1c66e5777cfb5b618fe24eaf4606f1ddf53448f3518ff235432b5a11ac01d471e62f2b8b34419584562cfd19d9fa9df52f89b6b1e91f828b944219789d35f001

  • SSDEEP

    6144:2TouKrWBEu3/Z2lpGDHU3ykJotX+t41/GA:2ToPWBv/cpGrU3yVtX+t4VGA

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

mphlabs.ddns.net:8273

mphnewconn.ddns.net:8273

Mutex

d198e7e6-5881-4519-8bb5-76dd9a9eb1e1

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    mphnewconn.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-02-10T07:10:50.745546436Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    8273

  • default_group

    p-man

  • 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

    d198e7e6-5881-4519-8bb5-76dd9a9eb1e1

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    mphlabs.ddns.net

  • 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

      tmp

    • Size

      314KB

    • MD5

      0f82973b8fb033ddf1737a08ee7af0ad

    • SHA1

      617aaac77fee3dcd155dae0207d45297563b9b91

    • SHA256

      61dd71f5c77595869823f58be7c12eb1d2729d718880d596bf5ac54a789854d3

    • SHA512

      1c66e5777cfb5b618fe24eaf4606f1ddf53448f3518ff235432b5a11ac01d471e62f2b8b34419584562cfd19d9fa9df52f89b6b1e91f828b944219789d35f001

    • SSDEEP

      6144:2TouKrWBEu3/Z2lpGDHU3ykJotX+t41/GA:2ToPWBv/cpGrU3yVtX+t4VGA

    • Modifies Windows Defender Real-time Protection settings

    • NanoCore

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

    • Downloads MZ/PE file

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Checks whether UAC is enabled

MITRE ATT&CK Enterprise v15

Tasks