General

  • Target

    e2ccf8d1e98bd35aaaaf8a69808766a4

  • Size

    588KB

  • Sample

    211105-yfs7cacga5

  • MD5

    e2ccf8d1e98bd35aaaaf8a69808766a4

  • SHA1

    05ccc2c2bf372d67036f27d22accaff065b6f363

  • SHA256

    cd24b42c63793dfce4fff72bc96a8466efa54df6dc56d32331842834782caf72

  • SHA512

    c497444c8d62a4a05aa4fc9d429eae67adf3463eaf81d8213747474d9b67168f0116e93f87104619c7f6853f65c24caada51fbeba40bbdcb089a8e690aa3301f

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

sicoslanderfamilydog.gleeze.com:4984

Mutex

cdfecb88-9e93-4c42-b7dc-3c480e7d2431

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-08-15T08:39:45.330389636Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    4984

  • default_group

    Family-B

  • 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

    cdfecb88-9e93-4c42-b7dc-3c480e7d2431

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    sicoslanderfamilydog.gleeze.com

  • 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

      e2ccf8d1e98bd35aaaaf8a69808766a4

    • Size

      588KB

    • MD5

      e2ccf8d1e98bd35aaaaf8a69808766a4

    • SHA1

      05ccc2c2bf372d67036f27d22accaff065b6f363

    • SHA256

      cd24b42c63793dfce4fff72bc96a8466efa54df6dc56d32331842834782caf72

    • SHA512

      c497444c8d62a4a05aa4fc9d429eae67adf3463eaf81d8213747474d9b67168f0116e93f87104619c7f6853f65c24caada51fbeba40bbdcb089a8e690aa3301f

    • Modifies WinLogon for persistence

    • NanoCore

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Winlogon Helper DLL

1
T1004

Defense Evasion

Modify Registry

1
T1112

Discovery

System Information Discovery

2
T1082

Tasks