General

  • Target

    INV_5678_78390.exe

  • Size

    805KB

  • Sample

    200707-eweje8ghaj

  • MD5

    c8cb205521c57333657881084113989a

  • SHA1

    9b71480fb738fc0856081f9a356b13e174bb9bd1

  • SHA256

    3d59dd3243943e67cd98e96104d36c22925c7df238df3aeb804663893b102969

  • SHA512

    6a5d0314e83f8358a984906b646c3bd28a60326d5b347f2ce0659c02be8be065b5bc2cde9eb22a45ab9c1ee93a1704877cb334c0da70359804fd2e2f0943aef2

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

urualla.duckdns.org:3999

urualla3.duckdns.org:3999

Mutex

d15035f6-d9d3-4e8b-9141-2ca7d3ee51bb

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    urualla3.duckdns.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2019-11-15T10:43:13.463487336Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    3999

  • default_group

    Default

  • 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

    d15035f6-d9d3-4e8b-9141-2ca7d3ee51bb

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    urualla.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

      INV_5678_78390.exe

    • Size

      805KB

    • MD5

      c8cb205521c57333657881084113989a

    • SHA1

      9b71480fb738fc0856081f9a356b13e174bb9bd1

    • SHA256

      3d59dd3243943e67cd98e96104d36c22925c7df238df3aeb804663893b102969

    • SHA512

      6a5d0314e83f8358a984906b646c3bd28a60326d5b347f2ce0659c02be8be065b5bc2cde9eb22a45ab9c1ee93a1704877cb334c0da70359804fd2e2f0943aef2

    • NanoCore

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

    • Executes dropped EXE

    • UPX packed file

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

    • Drops startup file

    • Loads dropped DLL

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Discovery

System Information Discovery

1
T1082

Tasks