General

  • Target

    4a925b21396d0857247c4fda247b4013

  • Size

    10.0MB

  • Sample

    231226-b9tzeaega3

  • MD5

    4a925b21396d0857247c4fda247b4013

  • SHA1

    94451a7969803fe2f4c7b4fac6e6c3918bb3664d

  • SHA256

    eba4e98e32ac6ae21675ef2f0367ebae91008cd0948d9f2d7b4d4d162ef5275b

  • SHA512

    ca6b483d821cc5d477dd6d15c50ff7a6469285f4b7de6add4d2895eb43829ca93c72209a6759270c5087db2bdd63530304378c49b3f64906dbaf806b47c135ab

  • SSDEEP

    49152:hfunoRgSFuY+258phuinSjIiFjaLcfvSuhhlD/7dvU+J4NES8C9GqMime+2mVVG9:h2YgSFy

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

desdemone.ddns.net:54984

Mutex

389ac8e1-237e-4496-aaad-e6c59071c44b

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    desdemone.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-05-10T23:44:45.859137736Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    54984

  • 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

    389ac8e1-237e-4496-aaad-e6c59071c44b

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    desdemone.ddns.net

  • 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

      4a925b21396d0857247c4fda247b4013

    • Size

      10.0MB

    • MD5

      4a925b21396d0857247c4fda247b4013

    • SHA1

      94451a7969803fe2f4c7b4fac6e6c3918bb3664d

    • SHA256

      eba4e98e32ac6ae21675ef2f0367ebae91008cd0948d9f2d7b4d4d162ef5275b

    • SHA512

      ca6b483d821cc5d477dd6d15c50ff7a6469285f4b7de6add4d2895eb43829ca93c72209a6759270c5087db2bdd63530304378c49b3f64906dbaf806b47c135ab

    • SSDEEP

      49152:hfunoRgSFuY+258phuinSjIiFjaLcfvSuhhlD/7dvU+J4NES8C9GqMime+2mVVG9:h2YgSFy

    • Contains code to disable Windows Defender

      A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

    • Modifies Windows Defender Real-time Protection settings

    • NanoCore

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

    • Checks whether UAC is enabled

MITRE ATT&CK Enterprise v15

Tasks