General

  • Target

    3718f7dba1c7b917da4b848878010fb760fbead70887fa9fa6b5963d5617f304

  • Size

    277KB

  • Sample

    240327-xqyddadd3v

  • MD5

    aed761d1c2fc5c67b8ca910dd369c728

  • SHA1

    8d1ddf30eaf7710e934530f373e91d39d1309e26

  • SHA256

    3718f7dba1c7b917da4b848878010fb760fbead70887fa9fa6b5963d5617f304

  • SHA512

    de42418714b1d482cf66ed48f31cfc4f289a6138359ec2722c4d08a46ba2d3babcf840126cb77d0dfb7cd28a535ba2615e11893f61e17bd8d98459900b7ceaee

  • SSDEEP

    6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fu:boSeGUA5YZazpXUmZhZ6G

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

      3718f7dba1c7b917da4b848878010fb760fbead70887fa9fa6b5963d5617f304

    • Size

      277KB

    • MD5

      aed761d1c2fc5c67b8ca910dd369c728

    • SHA1

      8d1ddf30eaf7710e934530f373e91d39d1309e26

    • SHA256

      3718f7dba1c7b917da4b848878010fb760fbead70887fa9fa6b5963d5617f304

    • SHA512

      de42418714b1d482cf66ed48f31cfc4f289a6138359ec2722c4d08a46ba2d3babcf840126cb77d0dfb7cd28a535ba2615e11893f61e17bd8d98459900b7ceaee

    • SSDEEP

      6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fu:boSeGUA5YZazpXUmZhZ6G

    • 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

    • Checks whether UAC is enabled

    • 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

3
T1082

Tasks