Overview

overview

10

Static

static

3

LisectAVT_...89.exe

windows7-x64

10

LisectAVT_...89.exe

windows10-2004-x64

10

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General

  • Target
    LisectAVT_2403002B_289.exe
  • Size 1.3MB
  • Sample240725-bkkpfayerj
  • SHA256 95107cbf8e5e80e92bec2ad6da134b55944850fd5306f64efa56cc9dea4a817a
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
nanocorediscoveryexecutionkeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

  • nanocore

Version

  • 1.2.2.0

C2

  • 79.134.225.100:1985

  • 127.0.0.1:1985

Mutex

  • b10f8b74-4448-4597-840b-1e44a5084bfc

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-04-30T10:29:24.181451236Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1985

  • default_group

    OBO

  • 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

    b10f8b74-4448-4597-840b-1e44a5084bfc

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    79.134.225.100

  • 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
      LisectAVT_2403002B_289.exe
    • Size 1.3MB
    • SHA256 95107cbf8e5e80e92bec2ad6da134b55944850fd5306f64efa56cc9dea4a817a
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    nanocorediscoveryexecutionkeyloggerpersistencespywarestealertrojan

    • NanoCore

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

      keyloggertrojanstealerspywarenanocore

    • CustAttr .NET packer

      Detects CustAttr .NET packer in memory.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Checks computer location settings

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

    • Adds Run key to start application

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks