General

  • Target

    1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe

  • Size

    434KB

  • Sample

    241122-lslltavjbp

  • MD5

    1ca4a0e2f74e5ffd751683f6afd1556e

  • SHA1

    228e7c61d1f6963a1a6617d02c9e3d8705088d64

  • SHA256

    1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6

  • SHA512

    5de83b5f4823e6fcc6f0f297a43c581bbcb875ba9ad78afc2d45179dc1d7040725c612392113ae47fcbf8957891439f1247b92091f2efbc861b8fe2ab1d92819

  • SSDEEP

    12288:nmJileuH/oPLDnoG3l+g9whD89s88C51/lX:Lee8FV+Gigs8H

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

37.0.10.137:9025

Mutex

b7d9d933-745d-49c1-bd0c-e06768b05c24

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    37.0.10.137

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-08-01T05:05:17.189046036Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    9025

  • default_group

    LYDECKER

  • 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

    b7d9d933-745d-49c1-bd0c-e06768b05c24

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    37.0.10.137

  • 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

      1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe

    • Size

      434KB

    • MD5

      1ca4a0e2f74e5ffd751683f6afd1556e

    • SHA1

      228e7c61d1f6963a1a6617d02c9e3d8705088d64

    • SHA256

      1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6

    • SHA512

      5de83b5f4823e6fcc6f0f297a43c581bbcb875ba9ad78afc2d45179dc1d7040725c612392113ae47fcbf8957891439f1247b92091f2efbc861b8fe2ab1d92819

    • SSDEEP

      12288:nmJileuH/oPLDnoG3l+g9whD89s88C51/lX:Lee8FV+Gigs8H

    • NanoCore

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

    • Nanocore family

    • 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 Enterprise v15

Tasks