General

  • Target

    542fa105a341f8ff4063b89dd3299e22_JaffaCakes118

  • Size

    609KB

  • Sample

    240717-ws3kfaseqj

  • MD5

    542fa105a341f8ff4063b89dd3299e22

  • SHA1

    f04e625d862613b9cfe5c475b026210973350186

  • SHA256

    e7c691d0c52249f5b1e3b51dc9034b5cf08eed17bf3980e0929ee237fab9e646

  • SHA512

    67c7203c1211a55594556632719afc5b9d2e39a848f7bd384a2dbafc45f23da6f158fa354cfdd7149d3ef17859198cc8e0903c8be81c9f6080d81dc239906880

  • SSDEEP

    12288:k8oXpPXHbsQNcHdMZTBTwRnwZ9AJT6YashlM0JT6YashlM:5ApPw1HyZcyM9ashlV9ashl

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

blackb.duckdns.org:2000

127.0.0.1:2000

Mutex

c12910f4-8f3a-41a2-a191-974634856fa2

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-07-03T06:19:34.499866336Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    2000

  • default_group

    BlabkB

  • 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

    c12910f4-8f3a-41a2-a191-974634856fa2

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    blackb.duckdns.org

  • 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

      542fa105a341f8ff4063b89dd3299e22_JaffaCakes118

    • Size

      609KB

    • MD5

      542fa105a341f8ff4063b89dd3299e22

    • SHA1

      f04e625d862613b9cfe5c475b026210973350186

    • SHA256

      e7c691d0c52249f5b1e3b51dc9034b5cf08eed17bf3980e0929ee237fab9e646

    • SHA512

      67c7203c1211a55594556632719afc5b9d2e39a848f7bd384a2dbafc45f23da6f158fa354cfdd7149d3ef17859198cc8e0903c8be81c9f6080d81dc239906880

    • SSDEEP

      12288:k8oXpPXHbsQNcHdMZTBTwRnwZ9AJT6YashlM0JT6YashlM:5ApPw1HyZcyM9ashlV9ashl

    • NanoCore

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

    • 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