Resubmissions

22-07-2024 16:15

240722-tql4kawcra 10

22-07-2024 15:58

240722-tevxbswejn 10

22-07-2024 15:53

240722-tb1y6swcrn 10

22-07-2024 15:37

240722-s2ryhsvhnr 10

General

  • Target

    Jako Gen Source Code.exe

  • Size

    203KB

  • Sample

    240722-s2ryhsvhnr

  • MD5

    cf4eb39d02324430fde9a09b0c36e321

  • SHA1

    5c6e77058e920d61ba74207027df073763905310

  • SHA256

    e8713b84ea80e0553edb04dfbdcf5feb8d5ff57ee116c5f77e092b08a9898f8b

  • SHA512

    332b5f3e25db8771b8f7afd9ded17e13e40bfa606377f4ba3531e46d9a6f080e81d7b826e8a5631b7131d50141e901d269cd78d595255705fdd390439b6bfaec

  • SSDEEP

    3072:UzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIq3grv/ZCSAjdcedtBWn6BXiLL:ULV6Bta6dtJmakIM5LISpWbBNV82UG

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

jako.ddns.net:1604

127.0.0.1:1604

Mutex

1c6dd03d-191e-469c-8524-c0d611d35c86

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-05-03T09:59:41.091238536Z

  • 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

    1604

  • 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

    1c6dd03d-191e-469c-8524-c0d611d35c86

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    jako.ddns.net

  • primary_dns_server

    8.8.8.8

  • request_elevation

    false

  • 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

      Jako Gen Source Code.exe

    • Size

      203KB

    • MD5

      cf4eb39d02324430fde9a09b0c36e321

    • SHA1

      5c6e77058e920d61ba74207027df073763905310

    • SHA256

      e8713b84ea80e0553edb04dfbdcf5feb8d5ff57ee116c5f77e092b08a9898f8b

    • SHA512

      332b5f3e25db8771b8f7afd9ded17e13e40bfa606377f4ba3531e46d9a6f080e81d7b826e8a5631b7131d50141e901d269cd78d595255705fdd390439b6bfaec

    • SSDEEP

      3072:UzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIq3grv/ZCSAjdcedtBWn6BXiLL:ULV6Bta6dtJmakIM5LISpWbBNV82UG

    • 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.

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies system executable filetype association

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • Checks system information in the registry

      System information is often read in order to detect sandboxing environments.

MITRE ATT&CK Enterprise v15

Tasks