General

  • Target

    wndll.exe

  • Size

    310KB

  • Sample

    200630-wapmqvr6ee

  • MD5

    4e0966f48e6fe2451eae96f7696dcab9

  • SHA1

    f37c0ca9db58a784cf77712bcfaa6cf18233b495

  • SHA256

    5b27db23756f4ddbd30a3875e30cdbff6cdcc1650a46e3c5a032da6f85cfdceb

  • SHA512

    19eb88285c79a199ae9ff0ccc2696973185b66f1b7bf06a6b9c4aebb269eb0da71e37a39017403e4b66adbd4071911febe08dd44e3f8c0f4adb10dfe661e9b9f

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

gold1.dnsupdate.info:4777

gold080.ooguy.com:4777

Mutex

de1252d0-fd95-4cdc-abb5-7b12ebb4706f

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    gold080.ooguy.com

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-04-10T22:11:42.883905836Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    4777

  • default_group

    TMT

  • 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

    de1252d0-fd95-4cdc-abb5-7b12ebb4706f

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    gold1.dnsupdate.info

  • 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

      wndll.exe

    • Size

      310KB

    • MD5

      4e0966f48e6fe2451eae96f7696dcab9

    • SHA1

      f37c0ca9db58a784cf77712bcfaa6cf18233b495

    • SHA256

      5b27db23756f4ddbd30a3875e30cdbff6cdcc1650a46e3c5a032da6f85cfdceb

    • SHA512

      19eb88285c79a199ae9ff0ccc2696973185b66f1b7bf06a6b9c4aebb269eb0da71e37a39017403e4b66adbd4071911febe08dd44e3f8c0f4adb10dfe661e9b9f

    • NanoCore

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

    • Executes dropped EXE

    • Drops startup file

    • Loads dropped DLL

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Tasks