General

  • Target

    b1d5ed26e4c2a2d3a0bd199829ed8797d73a86263448612bbfa7d5e77881809c.exe

  • Size

    415KB

  • Sample

    241124-nl53zsxmdy

  • MD5

    9a1bc53fb599e522844243dcef5f27e8

  • SHA1

    25eb2abab65a2fd76f7cd420214f0789edb83bfd

  • SHA256

    b1d5ed26e4c2a2d3a0bd199829ed8797d73a86263448612bbfa7d5e77881809c

  • SHA512

    bde01fea16c83402e9e1f02b4d38a7e95eee6aa5a67a5f64301af971c9d2ed2b699e92cb9a2ee1489ab5d3861a0de4319aff4eb96abeb36fb34d6ffa8ed093a8

  • SSDEEP

    6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUwK:ITNYrnE3bm/CiejewY5vu

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

      b1d5ed26e4c2a2d3a0bd199829ed8797d73a86263448612bbfa7d5e77881809c.exe

    • Size

      415KB

    • MD5

      9a1bc53fb599e522844243dcef5f27e8

    • SHA1

      25eb2abab65a2fd76f7cd420214f0789edb83bfd

    • SHA256

      b1d5ed26e4c2a2d3a0bd199829ed8797d73a86263448612bbfa7d5e77881809c

    • SHA512

      bde01fea16c83402e9e1f02b4d38a7e95eee6aa5a67a5f64301af971c9d2ed2b699e92cb9a2ee1489ab5d3861a0de4319aff4eb96abeb36fb34d6ffa8ed093a8

    • SSDEEP

      6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUwK:ITNYrnE3bm/CiejewY5vu

    • 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