General

  • Target

    dbf4194e27254f56ff4c456a2a2ca07c7a2a4432553c013e50724a0f31017727.exe

  • Size

    1.4MB

  • Sample

    241124-cyp2razjft

  • MD5

    4cb7425442688fe6a78d203dbb8b2ade

  • SHA1

    07e898706bba2fad06868827397cba204bc4c983

  • SHA256

    dbf4194e27254f56ff4c456a2a2ca07c7a2a4432553c013e50724a0f31017727

  • SHA512

    ef39c104e2de10eb3c1466669af99f6fb0aad03f23ad4a253a7aaf2c885046f9ceef0bb3a2458739f13572eded6b865c5581a078f5b361bb09f6f8535f525711

  • SSDEEP

    24576:rAOcZEhNWxlG7m4/9eBcA4CCEti0POqh/0rEOTq6ai0bagi7xa53:tyxlk9eBVlCGVPOwOTq6d4a5wN

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

newme122.3utilities.com:8822

newme1122.3utilities.com:8822

Mutex

dcf3fee6-c103-45ee-a2f0-f8afaa78d1fe

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    newme1122.3utilities.com

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-07-31T13:00:17.372768836Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    8822

  • default_group

    A New TIme Has Come

  • 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

    dcf3fee6-c103-45ee-a2f0-f8afaa78d1fe

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    newme122.3utilities.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

      dbf4194e27254f56ff4c456a2a2ca07c7a2a4432553c013e50724a0f31017727.exe

    • Size

      1.4MB

    • MD5

      4cb7425442688fe6a78d203dbb8b2ade

    • SHA1

      07e898706bba2fad06868827397cba204bc4c983

    • SHA256

      dbf4194e27254f56ff4c456a2a2ca07c7a2a4432553c013e50724a0f31017727

    • SHA512

      ef39c104e2de10eb3c1466669af99f6fb0aad03f23ad4a253a7aaf2c885046f9ceef0bb3a2458739f13572eded6b865c5581a078f5b361bb09f6f8535f525711

    • SSDEEP

      24576:rAOcZEhNWxlG7m4/9eBcA4CCEti0POqh/0rEOTq6ai0bagi7xa53:tyxlk9eBVlCGVPOwOTq6d4a5wN

    • 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