General

  • Target

    317c98c6a3bd2983a4802e6694b95964ebebf4692f2b9d136fb46c817bd44e3cN.exe

  • Size

    416KB

  • Sample

    250103-tec2hs1ras

  • MD5

    98a5b7aae088d08f55b0a85507368c90

  • SHA1

    55a57c1759e564d09a48b844f4abe2ae5b72ea9f

  • SHA256

    317c98c6a3bd2983a4802e6694b95964ebebf4692f2b9d136fb46c817bd44e3c

  • SHA512

    4ef5f2eba9718efc30e3bb4dd6e2577a4573d1bd579eff28951f60c580d4be0de05690f902df04a2101ee74887ac07e00762abf552bc5f6d3268e544f75d62dc

  • SSDEEP

    6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7p:ITNYrnE3bm/CiejewY5vC

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

      317c98c6a3bd2983a4802e6694b95964ebebf4692f2b9d136fb46c817bd44e3cN.exe

    • Size

      416KB

    • MD5

      98a5b7aae088d08f55b0a85507368c90

    • SHA1

      55a57c1759e564d09a48b844f4abe2ae5b72ea9f

    • SHA256

      317c98c6a3bd2983a4802e6694b95964ebebf4692f2b9d136fb46c817bd44e3c

    • SHA512

      4ef5f2eba9718efc30e3bb4dd6e2577a4573d1bd579eff28951f60c580d4be0de05690f902df04a2101ee74887ac07e00762abf552bc5f6d3268e544f75d62dc

    • SSDEEP

      6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7p:ITNYrnE3bm/CiejewY5vC

    • 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