General

  • Target

    U2NM18C9NPayment-Receipt.vbs

  • Size

    483B

  • Sample

    211208-xs8bcsacbr

  • MD5

    f06c964ada559c2eaca171edcbcd86a2

  • SHA1

    5222e4b0d39278418a1332331a567b2e8c6ff54e

  • SHA256

    ac316c0d4300e61d9e3bdb5a8c2d0069a41973c5495f0606f913e4c311e7df46

  • SHA512

    4a38c2b08cce4857281e7fafe0348bf1520de5e8fc1a5e285f702020f0a5caf0984d4dea550b109367201aa73ed28fe1f1fd888385f0f81207a48cd5c6987c08

Malware Config

Extracted

Family

njrat

Version

1.9

Botnet

HacKed

Mutex

Microsoft.Exe

Attributes
  • reg_key

    Microsoft.Exe

Extracted

Family

nanocore

Version

1.2.2.0

C2

nov6400.duckdns.org:6400

Mutex

513706f3-29db-4e99-a51e-059607a7bc45

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    nov6400.duckdns.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-09-17T19:15:29.081949136Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    6400

  • default_group

    nov 6400

  • 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

    513706f3-29db-4e99-a51e-059607a7bc45

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    nov6400.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

      U2NM18C9NPayment-Receipt.vbs

    • Size

      483B

    • MD5

      f06c964ada559c2eaca171edcbcd86a2

    • SHA1

      5222e4b0d39278418a1332331a567b2e8c6ff54e

    • SHA256

      ac316c0d4300e61d9e3bdb5a8c2d0069a41973c5495f0606f913e4c311e7df46

    • SHA512

      4a38c2b08cce4857281e7fafe0348bf1520de5e8fc1a5e285f702020f0a5caf0984d4dea550b109367201aa73ed28fe1f1fd888385f0f81207a48cd5c6987c08

    • BitRAT

      BitRAT is a remote access tool written in C++ and uses leaked source code from other families.

    • BitRAT Payload

    • NanoCore

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

    • njRAT/Bladabindi

      Widely used RAT written in .NET.

    • suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)

      suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)

    • suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)

      suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)

    • Blocklisted process makes network request

    • Modifies Windows Firewall

    • UPX packed file

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

    • Adds Run key to start application

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks