General

  • Target

    906b2a749ade93ddb03fac1b962eebd5895f677a5156b100361252804e5b8b8d

  • Size

    280KB

  • Sample

    221119-b8b27sch5y

  • MD5

    531955c2858a3d6d54ad2ad737ecfde0

  • SHA1

    2889d7a4c4bec15bfb42673c019c31d00e3bd66b

  • SHA256

    906b2a749ade93ddb03fac1b962eebd5895f677a5156b100361252804e5b8b8d

  • SHA512

    c6993f024f74465bdefb01cd81d5a4b243dd3ffcd27e8e22b0bdb3ff0f61b052f366a90162c37c81b893e16efd9784b27ed1e73504ad1e6209072a8e7d77f823

  • SSDEEP

    6144:hmmNqVyntdSFI9I30Gq7FO6/CvtDztym:hmmNqidSFI9I30lFn/CvtDk

Malware Config

Extracted

Family

nanocore

Version

1.2.2.2

C2

avito.duckdns.org:49562

Mutex

09f5c282-d61d-471d-899f-67d7d3d7b786

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    avito.duckdns.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2015-04-18T19:55:13.265527836Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    49562

  • default_group

    Updated

  • 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

    09f5c282-d61d-471d-899f-67d7d3d7b786

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    avito.duckdns.org

  • 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

    1.2.2.2

  • wan_timeout

    8000

Targets

    • Target

      906b2a749ade93ddb03fac1b962eebd5895f677a5156b100361252804e5b8b8d

    • Size

      280KB

    • MD5

      531955c2858a3d6d54ad2ad737ecfde0

    • SHA1

      2889d7a4c4bec15bfb42673c019c31d00e3bd66b

    • SHA256

      906b2a749ade93ddb03fac1b962eebd5895f677a5156b100361252804e5b8b8d

    • SHA512

      c6993f024f74465bdefb01cd81d5a4b243dd3ffcd27e8e22b0bdb3ff0f61b052f366a90162c37c81b893e16efd9784b27ed1e73504ad1e6209072a8e7d77f823

    • SSDEEP

      6144:hmmNqVyntdSFI9I30Gq7FO6/CvtDztym:hmmNqidSFI9I30lFn/CvtDk

    • NanoCore

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

    • Executes dropped EXE

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks