Overview

overview

10

Static

static

img_0928211.exe

windows7-x64

10

img_0928211.exe

windows10-2004-x64

10

Sharing

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General

  • Target
    10baa6d05b3c183c369b55d8e25561f44f8afe37267bfa704019b72573eb6fcf
  • Size 695KB
  • Sample221126-3ylmfaeb23
  • SHA256 10baa6d05b3c183c369b55d8e25561f44f8afe37267bfa704019b72573eb6fcf
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
nanocoreevasionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

  • nanocore

Version

  • 1.2.1.1

C2

  • nattyma.no-ip.biz:9035

Mutex

  • 45d17d9c-c36c-4d6f-93b8-abc9b59cd8a6

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    nattyma.no-ip.biz

  • backup_dns_server

  • buffer_size

    65535

  • build_time

    2014-09-28T06:15:02.698339236Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    9035

  • default_group

    NEROSMART

  • enable_debug_mode

    true

  • gc_threshold

    1.0448576e+08

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    9.9948576e+08

  • mutex

    45d17d9c-c36c-4d6f-93b8-abc9b59cd8a6

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    nattyma.no-ip.biz

  • primary_dns_server

  • 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

    1.2.1.1

  • wan_timeout

    8000

Targets

    • Target
      img_0928211.exe
    • Size 921KB
    • SHA256 fe5439378961e964d35e1e079c5675111def39ec03f5e87db38132313a618a2f
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    evasionpersistencetrojannanocorekeyloggerspywarestealer

    • Modifies visiblity of hidden/system files in Explorer

      evasion

    • NanoCore

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

      keyloggertrojanstealerspywarenanocore

    • Executes dropped EXE

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Loads dropped DLL

    • Adds Run key to start application

      persistence

    • Checks whether UAC is enabled

      evasiontrojan

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks