General

  • Target

    1bcefc01a210a73a4c627b093bd86383_JaffaCakes118

  • Size

    226KB

  • Sample

    240506-lawdasfe8t

  • MD5

    1bcefc01a210a73a4c627b093bd86383

  • SHA1

    502d92572caaf2e402c29fec2ca9db74fde53ab7

  • SHA256

    1fc02ca1e56c70c0b8e0d3f459c5e154660e9bf3bb2be1ea86a56e09b4c6227f

  • SHA512

    bcfa8ec98f039fbec72f312a2955688d3c2e65d4399874de85b94ff0330e7d873b2c30a262ecdfad9390b78334dd1f7a50ba98d1e40f001e28bbca17a35da0e9

  • SSDEEP

    3072:0+sY5tZ013YsBKVcfz/dMglHHRBZQgFGU+pE7Ibz/oB+F9dJZaIm8RuU5aAGHsWa:DXDsBa2/KQZ4tIIbcS9oImFU5aAG2l

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

happiboi.hopto.org:1122

Mutex

985ac1b8-7476-4608-8827-7b04eef2179c

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    happiboi.hopto.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2018-06-08T16:18:15.234143736Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    1122

  • default_group

    Jnr Boi

  • 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

    985ac1b8-7476-4608-8827-7b04eef2179c

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    happiboi.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

      PO-B1120017228.exe

    • Size

      256KB

    • MD5

      8c810e18058e24ff54a30a44e040569a

    • SHA1

      b0329f16013e786898cd75c101565fa70850be03

    • SHA256

      0e07d406f33fbf19219ea60e644cfd634fc8c934508bb608a6a1a3f13db1cc5a

    • SHA512

      f9beeaf52b85d01596382b2d5a64922332fea7f4894c24eeeae45ad07ba80cd70800a81e29f13922accc1d922b0ba56e8456a24bd03f0f1e51c623f2cc6726e1

    • SSDEEP

      6144:PZJR0bf1uc1p4wp/vNClO74ahHmJGhygfke7WLSaRnG:hiD1pR/Vv74aJygfkeSLv

    • 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.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Checks whether UAC is enabled

    • Drops desktop.ini file(s)

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks