General

  • Target

    1571fcb02c656912a05c6bc96ef9e7e98cf9273210e1a9d13675a8ec94a6c5eeN.exe

  • Size

    415KB

  • Sample

    241230-tlf2ra1rfx

  • MD5

    9dfed156c0234255fc2f046e614cac30

  • SHA1

    133aaa800be863f5c4104204783d3d64f1b236bc

  • SHA256

    1571fcb02c656912a05c6bc96ef9e7e98cf9273210e1a9d13675a8ec94a6c5ee

  • SHA512

    461bd69d562a44400fe56f1f5b76c4fc30c52bedb00bcc8c943c2749e54f8bb5143bd396d7556ab0fc89203f114fc4ad627479db646ceb8d8eb65a74209407ee

  • SSDEEP

    6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUb:ITNYrnE3bm/CiejewY5vg

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

      1571fcb02c656912a05c6bc96ef9e7e98cf9273210e1a9d13675a8ec94a6c5eeN.exe

    • Size

      415KB

    • MD5

      9dfed156c0234255fc2f046e614cac30

    • SHA1

      133aaa800be863f5c4104204783d3d64f1b236bc

    • SHA256

      1571fcb02c656912a05c6bc96ef9e7e98cf9273210e1a9d13675a8ec94a6c5ee

    • SHA512

      461bd69d562a44400fe56f1f5b76c4fc30c52bedb00bcc8c943c2749e54f8bb5143bd396d7556ab0fc89203f114fc4ad627479db646ceb8d8eb65a74209407ee

    • SSDEEP

      6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUb:ITNYrnE3bm/CiejewY5vg

    • 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