General

  • Target

    add4512a49cdf9c7b9f7a234a556860049775056871d0116182170f2ed786b56

  • Size

    615KB

  • Sample

    241114-lej6tsxbnl

  • MD5

    c2c82b8e556403f9a6f244c3f90a5d93

  • SHA1

    3bd4690f4113356bcaff6c379a43c13228a5438f

  • SHA256

    add4512a49cdf9c7b9f7a234a556860049775056871d0116182170f2ed786b56

  • SHA512

    3f902a858b91b7167e760ad73216bb5ec17d160453517a75ad7cd4ef9bf01d945781c2a0b751924be110e8c7ba1c0bbcbed8197cc4fa390339356231fdd91fb7

  • SSDEEP

    12288:KNWk901u41mYBFT6BOealO1Hk40B1zOc/N2U/yE9lOFohO:EN901u415BFTVPU5BIZvxyE9lQ

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

aye2mar280502016.ddns.net:20251

185.235.138.103:20251

Mutex

86e19174-6619-4836-82cb-d416d8e7b744

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    185.235.138.103

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-08-26T09:08:32.044708036Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    20251

  • default_group

    Dike

  • 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

    86e19174-6619-4836-82cb-d416d8e7b744

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    aye2mar280502016.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

      SUGFTEY6.exe

    • Size

      730KB

    • MD5

      f07be6af928120079595a9ebc0ae76f5

    • SHA1

      443a586b921c443e5c0cf587892c5edcbc97c59d

    • SHA256

      dde76fec5d81575fa446a6386696e94c6045a96f1dd6f8535aeea28be67edbba

    • SHA512

      a73063e8765aa3f3dcd44d5891e995fa9383ec8379579c42eb58a00259792ad73d251dbebdf374730382af0793f949fc732251a3d8f52df2506264c74782ed10

    • SSDEEP

      12288:3PTCJVMExIra6jcP1EKV64OWalOLHkGzYchNAKvCmOQDuczC3+kn7:fTCJVdZ9EA6XHUzdpMKamOQDuczM7

    • NanoCore

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

    • Nanocore family

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Checks computer location settings

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

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks