General

  • Target

    85ab2898cb89505c95021511b1cc04ad_JaffaCakes118

  • Size

    953KB

  • Sample

    240531-cefc7scc44

  • MD5

    85ab2898cb89505c95021511b1cc04ad

  • SHA1

    e2813e59a5061b26071968546d3a2e229184afe0

  • SHA256

    f08a007d5bb495d7caf8ce9a3244438e11edb3f2d44df754cb53526d78992172

  • SHA512

    1416f61117d8180c7ade6a47148256869a82362e6f8b5a5db60ddb25bc6ffcf74ea6a5798cf29452d915b200e5a2b67ea09e7f0ad63b49bbd00ec0c9f15d571e

  • SSDEEP

    24576:92O/GltkwWhpEO4BZPKOnrG89C51wfwmxhKbH3rUO46GIM:lI768sQwmxUT3iAM

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

franex.sytes.net:19055

franexserve.duckdns.org:19055

Mutex

b419eeae-0d79-4132-aae3-286d9a62a602

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    franexserve.duckdns.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2018-08-08T22:26:34.089187836Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    19055

  • default_group

    franex

  • 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

    b419eeae-0d79-4132-aae3-286d9a62a602

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    franex.sytes.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

      85ab2898cb89505c95021511b1cc04ad_JaffaCakes118

    • Size

      953KB

    • MD5

      85ab2898cb89505c95021511b1cc04ad

    • SHA1

      e2813e59a5061b26071968546d3a2e229184afe0

    • SHA256

      f08a007d5bb495d7caf8ce9a3244438e11edb3f2d44df754cb53526d78992172

    • SHA512

      1416f61117d8180c7ade6a47148256869a82362e6f8b5a5db60ddb25bc6ffcf74ea6a5798cf29452d915b200e5a2b67ea09e7f0ad63b49bbd00ec0c9f15d571e

    • SSDEEP

      24576:92O/GltkwWhpEO4BZPKOnrG89C51wfwmxhKbH3rUO46GIM:lI768sQwmxUT3iAM

    • 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