General

  • Target

    PO#7645.exe

  • Size

    698KB

  • Sample

    200630-7sa58ksr3x

  • MD5

    8ad3acc5de878eaab476ed18990abe73

  • SHA1

    7bddab10e162528d243fa30007aa23a6bca38ab3

  • SHA256

    c40967ded56321a744c0e32a8e18216a906e38d35262693a21e95a9683a47441

  • SHA512

    84da612da777783805483efbfb2a399aa59f7dc8f02d49afc3c868351fad7813c014b0be0f8562730d941170982f6ecc023ccdf71d816174f4edaa09a57b3924

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

goat22.ddns.net:1989

Mutex

5099c142-1d8a-467f-ad35-2e87b0d67948

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    goat22.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-04-10T22:46:16.534504236Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1989

  • default_group

    DONT LEAVE ME

  • 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

    5099c142-1d8a-467f-ad35-2e87b0d67948

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    goat22.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#7645.exe

    • Size

      698KB

    • MD5

      8ad3acc5de878eaab476ed18990abe73

    • SHA1

      7bddab10e162528d243fa30007aa23a6bca38ab3

    • SHA256

      c40967ded56321a744c0e32a8e18216a906e38d35262693a21e95a9683a47441

    • SHA512

      84da612da777783805483efbfb2a399aa59f7dc8f02d49afc3c868351fad7813c014b0be0f8562730d941170982f6ecc023ccdf71d816174f4edaa09a57b3924

    • NanoCore

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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Drops startup file

    • Adds Run entry to start application

    • Checks whether UAC is enabled

    • 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

1
T1082

Tasks