General

  • Target

    PO 67542 PDF.exe

  • Size

    645KB

  • Sample

    210120-9vgeswb9tn

  • MD5

    48e519f4c829c450926294170a30e1bb

  • SHA1

    2427038220c0e5c9ab296467db4ddfcdeb83037d

  • SHA256

    7de0221ea139d8db56886d9f794c167a8d569f9f740e3c353147592a96114648

  • SHA512

    ed305050f3cf248672d14ff868443fcf04add6cae9fea4bde0a6b98454b503cd56acb0be26b7dc3f3c96ac638a44227fbd129550a7ae069388c25ddcd1dedec9

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

ammagedom.ddns.net:6653

Mutex

aa404d07-83f4-4395-91ef-1349b0849942

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    ammagedom.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-10-01T22:07:24.190960336Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    6653

  • default_group

    AMMAGEDOM

  • 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

    aa404d07-83f4-4395-91ef-1349b0849942

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    ammagedom.ddns.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

      PO 67542 PDF.exe

    • Size

      645KB

    • MD5

      48e519f4c829c450926294170a30e1bb

    • SHA1

      2427038220c0e5c9ab296467db4ddfcdeb83037d

    • SHA256

      7de0221ea139d8db56886d9f794c167a8d569f9f740e3c353147592a96114648

    • SHA512

      ed305050f3cf248672d14ff868443fcf04add6cae9fea4bde0a6b98454b503cd56acb0be26b7dc3f3c96ac638a44227fbd129550a7ae069388c25ddcd1dedec9

    • NanoCore

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

    • Executes dropped EXE

    • Drops startup file

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Enumerates physical storage devices

      Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

2
T1082

Tasks