Overview

overview

10

Static

static

PostNL kla...oc.exe

windows7_x64

10

PostNL kla...oc.exe

windows10_x64

10

Sharing

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General

  • Target
    PostNL klant verzendinformatie document doc.exe
  • Size 500KB
  • Sample200716-kx46bcw8a6
  • SHA256 04d57be00e1edddcfd5cd6088b4eec44591c6f0a5f9e6a13b9f90e66a24ccc25
  • MD5 SHA1 SHA512
Score
10/10
nanocoreevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

  • nanocore

Version

  • 1.2.2.0

C2

  • postnl.duckdns.org:1969

Mutex

  • 03803fb4-9846-4772-b30e-fac43bb55ddb

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-04-27T07:08:14.039616336Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    1969

  • default_group

    POSTNL

  • 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

    03803fb4-9846-4772-b30e-fac43bb55ddb

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    postnl.duckdns.org

  • 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
      PostNL klant verzendinformatie document doc.exe
    • Size 500KB
    • SHA256 04d57be00e1edddcfd5cd6088b4eec44591c6f0a5f9e6a13b9f90e66a24ccc25
    • MD5 SHA1 SHA512
    Score
    10/10
    evasiontrojankeyloggerstealerspywarenanocore

    • NanoCore

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

      keyloggertrojanstealerspywarenanocore

    • Looks for VirtualBox Guest Additions in registry

      evasion

    • Looks for VMWare Tools registry key

      evasion

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks whether UAC is enabled

      evasiontrojan

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks