Resubmissions

15-08-2024 11:42

240815-nt6pgsvcmj 7

15-08-2024 11:37

240815-nrkz1avbpj 10

15-08-2024 11:36

240815-nqyjpsvbmq 10

15-08-2024 11:33

240815-npbcsavbjm 10

General

  • Target

    ae1265e9fe0ac39bbe970a3fa66c64b0N.exe

  • Size

    282KB

  • Sample

    240815-npbcsavbjm

  • MD5

    ae1265e9fe0ac39bbe970a3fa66c64b0

  • SHA1

    9239a5d795a2d97e72e7bd9b48b125d0e2459960

  • SHA256

    87a574cbf6233e2fd7a3872da22451ae49f6248cca5c900dab49207e0f0135b0

  • SHA512

    ff66d820fd16cc06ee99b995b1de7aa22d545da35518a1b02c5d5dee6a2d6c8670d3c3ba6934c0f0ebeaadb577c9de91dd9db8f8b27d1636f4f7514a6b4430a5

  • SSDEEP

    6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfQ:boSeGUA5YZazpXUmZhZ6Sp

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

sysupdate24.ddns.net:45400

Mutex

ae82ab7f-db07-49ee-9d2b-76075d76f37f

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

  • buffer_size

    65535

  • build_time

    2020-04-24T17:41:53.492468936Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    45400

  • 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

    ae82ab7f-db07-49ee-9d2b-76075d76f37f

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    sysupdate24.ddns.net

  • primary_dns_server

  • 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

      ae1265e9fe0ac39bbe970a3fa66c64b0N.exe

    • Size

      282KB

    • MD5

      ae1265e9fe0ac39bbe970a3fa66c64b0

    • SHA1

      9239a5d795a2d97e72e7bd9b48b125d0e2459960

    • SHA256

      87a574cbf6233e2fd7a3872da22451ae49f6248cca5c900dab49207e0f0135b0

    • SHA512

      ff66d820fd16cc06ee99b995b1de7aa22d545da35518a1b02c5d5dee6a2d6c8670d3c3ba6934c0f0ebeaadb577c9de91dd9db8f8b27d1636f4f7514a6b4430a5

    • SSDEEP

      6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfQ:boSeGUA5YZazpXUmZhZ6Sp

    • 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

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks