General

  • Target

    ea184a14a40394f152e2c08eb9ba62ee_JaffaCakes118

  • Size

    530KB

  • Sample

    241213-f4bm4azkay

  • MD5

    ea184a14a40394f152e2c08eb9ba62ee

  • SHA1

    80a98688698a29681588d5fa23382b1fa33279b5

  • SHA256

    46a8154f10cee5ed12613adee278ae790a10b359191ce045e94d0d8191f1389d

  • SHA512

    d0232a2e16c8bf3e160446ee139c23ee0562b0e0161aa1153af84452be0db7a859a5a27e9e1f917186b25339f9be1a298218d21021f12a5758d07e0ff3156ac6

  • SSDEEP

    6144:GrtIRxHou3JQW6ioI+CCeNsHLFwoRgv/uxEj0qqVqOjgsVP/RG4vDuK8tFAnpLLC:GORP36Wz8CCeMF5s2jBLG4buJgtY6qZ

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

79.134.225.124:1604

lambertofield1.ddns.net:1604

Mutex

0d315a12-7176-4d64-b8c3-817b06b4e0c7

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    lambertofield1.ddns.net

  • backup_dns_server

    37.235.1.177

  • buffer_size

    65535

  • build_time

    2021-04-11T06:44:19.506592036Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1604

  • default_group

    Async

  • 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

    0d315a12-7176-4d64-b8c3-817b06b4e0c7

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    79.134.225.124

  • primary_dns_server

    37.235.1.174

  • 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

      ea184a14a40394f152e2c08eb9ba62ee_JaffaCakes118

    • Size

      530KB

    • MD5

      ea184a14a40394f152e2c08eb9ba62ee

    • SHA1

      80a98688698a29681588d5fa23382b1fa33279b5

    • SHA256

      46a8154f10cee5ed12613adee278ae790a10b359191ce045e94d0d8191f1389d

    • SHA512

      d0232a2e16c8bf3e160446ee139c23ee0562b0e0161aa1153af84452be0db7a859a5a27e9e1f917186b25339f9be1a298218d21021f12a5758d07e0ff3156ac6

    • SSDEEP

      6144:GrtIRxHou3JQW6ioI+CCeNsHLFwoRgv/uxEj0qqVqOjgsVP/RG4vDuK8tFAnpLLC:GORP36Wz8CCeMF5s2jBLG4buJgtY6qZ

    • NanoCore

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

    • Nanocore family

    • UAC bypass

    • Windows security bypass

    • 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.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Windows security modification

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks