General

  • Target

    5b4966b97a3e3979116e52661911d864_JaffaCakes118

  • Size

    922KB

  • Sample

    240519-y5gvlsgb8y

  • MD5

    5b4966b97a3e3979116e52661911d864

  • SHA1

    dfd59d35031a179590e5ad0c62af4a3ad258809a

  • SHA256

    520a9841c77609dc1c87d0cc7e8ca7ac4e36fb9a78c4401e056c12585ceaec04

  • SHA512

    a1c5abc309def3522556bfc43b75f3d6fd63f861e6070c2483e1cffa0de019a098c63e4fcba0488b94eaa879eb9298113c31c5378cf633ad06847fcde364a94f

  • SSDEEP

    24576:f2O/GlVZNLG62ZnMCpdfnwYiOxNOCLs2lQlZP69/:cZsdPoYPuri9/

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

kgentle77.hopto.org:58887

Mutex

1515e7d6-0e18-4f91-8b5b-e41fb83e4640

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2018-07-11T13:50:06.165219536Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    58887

  • default_group

    kgentle

  • 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

    1515e7d6-0e18-4f91-8b5b-e41fb83e4640

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    kgentle77.hopto.org

  • 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

      5b4966b97a3e3979116e52661911d864_JaffaCakes118

    • Size

      922KB

    • MD5

      5b4966b97a3e3979116e52661911d864

    • SHA1

      dfd59d35031a179590e5ad0c62af4a3ad258809a

    • SHA256

      520a9841c77609dc1c87d0cc7e8ca7ac4e36fb9a78c4401e056c12585ceaec04

    • SHA512

      a1c5abc309def3522556bfc43b75f3d6fd63f861e6070c2483e1cffa0de019a098c63e4fcba0488b94eaa879eb9298113c31c5378cf633ad06847fcde364a94f

    • SSDEEP

      24576:f2O/GlVZNLG62ZnMCpdfnwYiOxNOCLs2lQlZP69/:cZsdPoYPuri9/

    • 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.

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Tasks