General

  • Target

    78fd654d1c45043e91c89a1a518d253223b33ed1fed355f3dd4b3699021c525a.exe

  • Size

    1.0MB

  • Sample

    250201-yfzzwsypbj

  • MD5

    df38030405cf4ad1861defaf41dc5917

  • SHA1

    8af5ac6c4d61bf76568b3a5ef8c605dcd465c0f2

  • SHA256

    78fd654d1c45043e91c89a1a518d253223b33ed1fed355f3dd4b3699021c525a

  • SHA512

    c40fa7096309d6c59c479a1c78ea908d531cb966d1c764b0bc36fa329a99616a92791a8522d415263d687f596545e998a08f441eb18bb66cfad526d1ff1ce996

  • SSDEEP

    24576:Jur9gkEPGcHHXYDYDa6naGhywpCjq7jUv7cF6kZ6YriDfZ49p50/z:Ur9gNGKXYD+naGEsBXUv66k8o4yp5wz

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

      78fd654d1c45043e91c89a1a518d253223b33ed1fed355f3dd4b3699021c525a.exe

    • Size

      1.0MB

    • MD5

      df38030405cf4ad1861defaf41dc5917

    • SHA1

      8af5ac6c4d61bf76568b3a5ef8c605dcd465c0f2

    • SHA256

      78fd654d1c45043e91c89a1a518d253223b33ed1fed355f3dd4b3699021c525a

    • SHA512

      c40fa7096309d6c59c479a1c78ea908d531cb966d1c764b0bc36fa329a99616a92791a8522d415263d687f596545e998a08f441eb18bb66cfad526d1ff1ce996

    • SSDEEP

      24576:Jur9gkEPGcHHXYDYDa6naGhywpCjq7jUv7cF6kZ6YriDfZ49p50/z:Ur9gNGKXYD+naGEsBXUv66k8o4yp5wz

    • 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