General

  • Target

    Reference Order.xlsx

  • Size

    1.5MB

  • Sample

    240123-m33thshfgk

  • MD5

    348399b31948fa77755655048af16d6c

  • SHA1

    aa0de7d16111089477382db8693b887bf206429d

  • SHA256

    b3b3624957a632017af99affbceff947012ca9f534ebe633ea5b3305703dc671

  • SHA512

    8e222cc262e70cefb909bbbcc2f4152571d0e38a3a4e4c270b8f9135cdbac796a8db54db3c482af755b883036256a7c9153aa4a4d4e213e6ea3f07b1039a664b

  • SSDEEP

    24576:ZYluZwcmLI40fUClRpefkpDCghBf2cr7+QVqh3Jdd8Drd7INpzXwKV3QH+X9:6UMs408oPikp+L2+QVqfdd8Drd7IzzD3

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

macgains.duckdns.org:6269

Mutex

a3f5e025-fc32-42de-b484-aff3ac6134e8

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    macgains.duckdns.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2023-11-03T06:19:24.177926136Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    6269

  • default_group

    SLAVES

  • 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

    a3f5e025-fc32-42de-b484-aff3ac6134e8

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    macgains.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

    1.2.2.0

  • wan_timeout

    8000

Targets

    • Target

      Reference Order.xlsx

    • Size

      1.5MB

    • MD5

      348399b31948fa77755655048af16d6c

    • SHA1

      aa0de7d16111089477382db8693b887bf206429d

    • SHA256

      b3b3624957a632017af99affbceff947012ca9f534ebe633ea5b3305703dc671

    • SHA512

      8e222cc262e70cefb909bbbcc2f4152571d0e38a3a4e4c270b8f9135cdbac796a8db54db3c482af755b883036256a7c9153aa4a4d4e213e6ea3f07b1039a664b

    • SSDEEP

      24576:ZYluZwcmLI40fUClRpefkpDCghBf2cr7+QVqh3Jdd8Drd7INpzXwKV3QH+X9:6UMs408oPikp+L2+QVqfdd8Drd7IzzD3

    • NanoCore

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

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Checks whether UAC is enabled

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks