General

  • Target

    26dafe289b4249ecff3cd945e81eeb99.bin

  • Size

    746KB

  • Sample

    230322-bg1w9aea55

  • MD5

    dcea4b2e7728d000ce8b4380c4cf63ec

  • SHA1

    11ff1e0a38fc7bc467ab51ed0a35a38af6a10fb6

  • SHA256

    703bdf2ca62398c2a4530cb974068e3ecad0c293b336495b86991a40db946139

  • SHA512

    fee17a00beb2ea0cec90615292214b284afd1c554e6153fa4d64ec015a2250f95e85f9580451d02663ddfc37c64c390c4360f1fb0ba2419060ea9ff11efe81a1

  • SSDEEP

    12288:68sBfO5nba1+xf4xXA9tN+JNueFumdqJa5JNt6ImoNJLhXu+BlIq1k4NHX:nEEnba1sf4xXBOsjt6kPFoq17h

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

claude111.duckdns.org:31740

Mutex

0bcbe88e-f672-4ae9-8d88-8c69d7bd7e44

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    claude111.duckdns.org

  • backup_dns_server

    claude111.duckdns.org

  • buffer_size

    65535

  • build_time

    2022-12-25T22:39:01.788668536Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    31740

  • default_group

    march

  • 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

    0bcbe88e-f672-4ae9-8d88-8c69d7bd7e44

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    claude111.duckdns.org

  • primary_dns_server

    claude111.duckdns.org

  • 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

      b68d4952eaf5950f31cadf83a575f3d9ffd0f46b560a39abb3b013039fcb2293.exe

    • Size

      837KB

    • MD5

      26dafe289b4249ecff3cd945e81eeb99

    • SHA1

      9b5e8adfede3c032cbfc91cf0d8c6b17c0971bed

    • SHA256

      b68d4952eaf5950f31cadf83a575f3d9ffd0f46b560a39abb3b013039fcb2293

    • SHA512

      03a98b486a225143c5b65509cd4606528cf52a3053422d031e6946e67e931d8f98e6a00995f8eaf946a2dbf7ed29cf48e10fbaf310d28257c0e75dd5f72182ba

    • SSDEEP

      24576:sHYQwcFz4c9Vjw+jNN2R9x8TsFvfSki5ZmICdoHwJbQ:oF8cvjEosBVymIgJ

    • 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.

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Tasks