General

  • Target

    4639836760996b14f786e708189907dc5418670da0cbdbedf6646a387502a3db

  • Size

    1.0MB

  • Sample

    250116-3p67savrbk

  • MD5

    671b173b930b18df3594f416c2bf2fc1

  • SHA1

    e008debd76363ed7dbc2be393f595dc293525a24

  • SHA256

    4639836760996b14f786e708189907dc5418670da0cbdbedf6646a387502a3db

  • SHA512

    189fea38a9296396b1f3d049859af3bccf19016996f58679f969070a42ad749e90a6771a8207830f3b8767354a0d5d6bd656cd27e50523def8d4fafb27182a62

  • SSDEEP

    24576:Jur9gkEPGcHHXYDYDa6naGhywpCjq7jUv7cF6kZ6YriDfZ49p50/a:Ur9gNGKXYD+naGEsBXUv66k8o4yp5wa

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

testwork.kozow.com:8906

Mutex

bd6fc7b5-d48b-4e23-98f7-784bd3ef305c

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    testwork.kozow.com

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2019-02-16T16:47:25.218235636Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    8906

  • default_group

    star

  • 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

    bd6fc7b5-d48b-4e23-98f7-784bd3ef305c

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    testwork.kozow.com

  • 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

      4639836760996b14f786e708189907dc5418670da0cbdbedf6646a387502a3db

    • Size

      1.0MB

    • MD5

      671b173b930b18df3594f416c2bf2fc1

    • SHA1

      e008debd76363ed7dbc2be393f595dc293525a24

    • SHA256

      4639836760996b14f786e708189907dc5418670da0cbdbedf6646a387502a3db

    • SHA512

      189fea38a9296396b1f3d049859af3bccf19016996f58679f969070a42ad749e90a6771a8207830f3b8767354a0d5d6bd656cd27e50523def8d4fafb27182a62

    • SSDEEP

      24576:Jur9gkEPGcHHXYDYDa6naGhywpCjq7jUv7cF6kZ6YriDfZ49p50/a:Ur9gNGKXYD+naGEsBXUv66k8o4yp5wa

    • NanoCore

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

    • Nanocore family

    • Drops startup file

    • Checks whether UAC is enabled

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of SetThreadContext

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks