General

  • Target

    RNSM00345.7z

  • Size

    3.0MB

  • Sample

    241110-tnbj2s1ajb

  • MD5

    2936f6c721739b8fb55452e0916e6e1b

  • SHA1

    47c23c9bf2692ea1cab5a0f6f59fd47f6da642ea

  • SHA256

    49c4f9e21ec3b698c60215cb6072f73f25b6d7dd09064be86e1dfc184f50b06c

  • SHA512

    f4874e79a8b69d8bd46e6b261e8b42aa557e11ddb328e0cf1901c9dd265e8c321e1a42cb0a060a0e99400b7f0af5c85abf70348206a8659fa465fdf879bf1016

  • SSDEEP

    49152:91t6JJ+UADa5weGrqFva0dVF6xfikl/Jcjdh9vS44IVJeQz1JkRKpUg3oEaL:9LeA+GeHlL0iSqjdbvST4JR1pGEaL

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

95.141.43.202:1860

127.0.0.1:1860

Mutex

47fe2d4d-2c23-4594-9173-9c075887e2b5

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    127.0.0.1

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2018-08-26T00:46:44.118475836Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1860

  • default_group

    NOVEMBER

  • 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

    47fe2d4d-2c23-4594-9173-9c075887e2b5

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    95.141.43.202

  • 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

      RNSM00345.7z

    • Size

      3.0MB

    • MD5

      2936f6c721739b8fb55452e0916e6e1b

    • SHA1

      47c23c9bf2692ea1cab5a0f6f59fd47f6da642ea

    • SHA256

      49c4f9e21ec3b698c60215cb6072f73f25b6d7dd09064be86e1dfc184f50b06c

    • SHA512

      f4874e79a8b69d8bd46e6b261e8b42aa557e11ddb328e0cf1901c9dd265e8c321e1a42cb0a060a0e99400b7f0af5c85abf70348206a8659fa465fdf879bf1016

    • SSDEEP

      49152:91t6JJ+UADa5weGrqFva0dVF6xfikl/Jcjdh9vS44IVJeQz1JkRKpUg3oEaL:9LeA+GeHlL0iSqjdbvST4JR1pGEaL

    • NanoCore

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

    • Nanocore family

    • Troldesh family

    • Troldesh, Shade, Encoder.858

      Troldesh is a ransomware spread by malspam.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • System Binary Proxy Execution: Verclsid

      Adversaries may abuse Verclsid to proxy execution of malicious code.

    • Suspicious use of SetThreadContext

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks