General

  • Target

    d48b7e4c2955e6764ab696429590bed38b4afa9b4d49a103e99a61314825e9cd

  • Size

    456KB

  • Sample

    220414-n1zjraadh6

  • MD5

    f8dbb51b18bc60d943da14368a5d6c58

  • SHA1

    fae8de8cc751859d7498b8e28104b462beca0a96

  • SHA256

    d48b7e4c2955e6764ab696429590bed38b4afa9b4d49a103e99a61314825e9cd

  • SHA512

    1e5284515b33a4de8ee00833d2cd8073bf762fca530fba950d71849773a00492b60f126a77ac4d3df01ce8b09b25abcc00419aa41efbedb20edbf45d9090ecc0

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

farah99.zapto.org:19720

Mutex

6d50c134-6325-499c-b5ec-dbc7a37a8117

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    farah99.zapto.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-08-20T23:36:09.518759436Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    19720

  • default_group

    Default

  • 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

    6d50c134-6325-499c-b5ec-dbc7a37a8117

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    farah99.zapto.org

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    true

  • timeout_interval

    5000

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Targets

    • Target

      d48b7e4c2955e6764ab696429590bed38b4afa9b4d49a103e99a61314825e9cd

    • Size

      456KB

    • MD5

      f8dbb51b18bc60d943da14368a5d6c58

    • SHA1

      fae8de8cc751859d7498b8e28104b462beca0a96

    • SHA256

      d48b7e4c2955e6764ab696429590bed38b4afa9b4d49a103e99a61314825e9cd

    • SHA512

      1e5284515b33a4de8ee00833d2cd8073bf762fca530fba950d71849773a00492b60f126a77ac4d3df01ce8b09b25abcc00419aa41efbedb20edbf45d9090ecc0

    • Meta Stealer Stealer

      Meta Stealer steals passwords stored in browsers, written in C++.

    • NanoCore

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

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks