General

  • Target

    c5a5ebc4a1f0d0e64ef597a219ae409dfece24af8fc582419874bf1d81f09f4fN.exe

  • Size

    416KB

  • Sample

    241222-jjaf3szmfp

  • MD5

    d2d948797e97fdd6fb94b9f7e739e200

  • SHA1

    996ca61f7588f8bcce138dca46d890f6c575518c

  • SHA256

    c5a5ebc4a1f0d0e64ef597a219ae409dfece24af8fc582419874bf1d81f09f4f

  • SHA512

    181b91471977c8ebf14916c1ffdd213f2c320d68454e1a03aeb8d38bbed8f7619df97c12d77d99de6381140822d92193d02fefde982ef3a0a748e87425da171a

  • SSDEEP

    6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUwg:ITNYrnE3bm/CiejewY5v0

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

[email protected]:46218

178.32.224.116:46218

Mutex

4af74541-e3f1-469c-8af7-efe4071b81cf

Attributes
  • activate_away_mode

    false

  • backup_connection_host

    178.32.224.116

  • backup_dns_server

  • buffer_size

    65535

  • build_time

    2018-07-28T12:59:38.488799236Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    46218

  • default_group

    tourex

  • 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

    4af74541-e3f1-469c-8af7-efe4071b81cf

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    [email protected]

  • primary_dns_server

  • 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

      c5a5ebc4a1f0d0e64ef597a219ae409dfece24af8fc582419874bf1d81f09f4fN.exe

    • Size

      416KB

    • MD5

      d2d948797e97fdd6fb94b9f7e739e200

    • SHA1

      996ca61f7588f8bcce138dca46d890f6c575518c

    • SHA256

      c5a5ebc4a1f0d0e64ef597a219ae409dfece24af8fc582419874bf1d81f09f4f

    • SHA512

      181b91471977c8ebf14916c1ffdd213f2c320d68454e1a03aeb8d38bbed8f7619df97c12d77d99de6381140822d92193d02fefde982ef3a0a748e87425da171a

    • SSDEEP

      6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUwg:ITNYrnE3bm/CiejewY5v0

    • NanoCore

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

    • Nanocore family

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks