General

  • Target

    3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a.exe

  • Size

    416KB

  • Sample

    241218-l79besvjcw

  • MD5

    3ccac33b001ff12e4d02d46545877b60

  • SHA1

    4fd29a4c6b19deb87057a191f1636a9e40a49401

  • SHA256

    3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a

  • SHA512

    b7861012a11d7d18db5aefef5fb4be5659cee33b29fd3cf7716b0748676f0fb61d441856e0201d111679219d8ef365bb9e6d05f22b8f1bca4ff7fbd90e4cd6ff

  • SSDEEP

    6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7A:ITNYrnE3bm/CiejewY5vD

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

[email protected]:46218

178.32.224.116:46218

Mutex

4af74541-e3f1-469c-8af7-efe4071b81cf

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    178.32.224.116

  • backup_dns_server

  • buffer_size

    65535

  • build_time

    2018-07-28T12:59:38.488799236Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    46218

  • default_group

    tourex

  • 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

    4af74541-e3f1-469c-8af7-efe4071b81cf

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    [email protected]

  • 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

      3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a.exe

    • Size

      416KB

    • MD5

      3ccac33b001ff12e4d02d46545877b60

    • SHA1

      4fd29a4c6b19deb87057a191f1636a9e40a49401

    • SHA256

      3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a

    • SHA512

      b7861012a11d7d18db5aefef5fb4be5659cee33b29fd3cf7716b0748676f0fb61d441856e0201d111679219d8ef365bb9e6d05f22b8f1bca4ff7fbd90e4cd6ff

    • SSDEEP

      6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7A:ITNYrnE3bm/CiejewY5vD

    • 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