General

  • Target

    d4b9ae8ae5a3c7987da7abfb09914ba4141064bd3ff7315c664c30cb9aab191e.exe

  • Size

    256KB

  • Sample

    250116-adh2laslhn

  • MD5

    b172dbd342a0f600354cda3f5a068008

  • SHA1

    3ea34338e307ad428937c888bc780a7398f2d098

  • SHA256

    d4b9ae8ae5a3c7987da7abfb09914ba4141064bd3ff7315c664c30cb9aab191e

  • SHA512

    45b916616fa23fac7146c7c0ca3c8f44208f073fec72725b0fe34638e493458ca152f06c41292d8a52e21ca2e6f9f7b58cd2a26ec9bcf73d86b18bafcbe2c4f0

  • SSDEEP

    6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ4R:EeGUA5YZazpXUmZhPR

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

sysupdate24.ddns.net:45400

Mutex

ae82ab7f-db07-49ee-9d2b-76075d76f37f

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

  • buffer_size

    65535

  • build_time

    2020-04-24T17:41:53.492468936Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    45400

  • default_group

    Default

  • 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

    ae82ab7f-db07-49ee-9d2b-76075d76f37f

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    sysupdate24.ddns.net

  • primary_dns_server

  • 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

      d4b9ae8ae5a3c7987da7abfb09914ba4141064bd3ff7315c664c30cb9aab191e.exe

    • Size

      256KB

    • MD5

      b172dbd342a0f600354cda3f5a068008

    • SHA1

      3ea34338e307ad428937c888bc780a7398f2d098

    • SHA256

      d4b9ae8ae5a3c7987da7abfb09914ba4141064bd3ff7315c664c30cb9aab191e

    • SHA512

      45b916616fa23fac7146c7c0ca3c8f44208f073fec72725b0fe34638e493458ca152f06c41292d8a52e21ca2e6f9f7b58cd2a26ec9bcf73d86b18bafcbe2c4f0

    • SSDEEP

      6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ4R:EeGUA5YZazpXUmZhPR

    • NanoCore

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

    • Nanocore family

    • 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

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks