General

  • Target

    HEALTHCARE PO 00134536OCT2422.exe

  • Size

    816KB

  • Sample

    221024-d1dxyaecgk

  • MD5

    09b2235e9a54194838d29a8e92d3d120

  • SHA1

    93d2d74e32e4995f30e038287c5d229264c837fc

  • SHA256

    74bf4be5cd674b82ed1eee10d1187d16b8abd1c348d2527d8ff34d88fbc01114

  • SHA512

    676fdc32a922ee410d34c1fa65c17bd5584c82b4e2d7d9e315115a592a4d8a2e8ad3472452dc5916159ecaa7223d28595b648145e5c6a8f481e95132fc8b4e22

  • SSDEEP

    6144:l7BRdX63JgEWqAi2iu8ifmZzBa34IDz3Dv+Xr3Di0OlqMuyP2X7+tCfUktC0w5T3:zX6Zglqk7WYPfLYr5GeL+kfRX4nYY9

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

198.50.231.134:5498

Mutex

9b971056-14d1-4d11-993c-89c2085bbd7c

Attributes
  • activate_away_mode

    true

  • backup_connection_host

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-07-01T11:22:25.531243736Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    5498

  • default_group

    miracle

  • 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

    9b971056-14d1-4d11-993c-89c2085bbd7c

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    198.50.231.134

  • 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

      HEALTHCARE PO 00134536OCT2422.exe

    • Size

      816KB

    • MD5

      09b2235e9a54194838d29a8e92d3d120

    • SHA1

      93d2d74e32e4995f30e038287c5d229264c837fc

    • SHA256

      74bf4be5cd674b82ed1eee10d1187d16b8abd1c348d2527d8ff34d88fbc01114

    • SHA512

      676fdc32a922ee410d34c1fa65c17bd5584c82b4e2d7d9e315115a592a4d8a2e8ad3472452dc5916159ecaa7223d28595b648145e5c6a8f481e95132fc8b4e22

    • SSDEEP

      6144:l7BRdX63JgEWqAi2iu8ifmZzBa34IDz3Dv+Xr3Di0OlqMuyP2X7+tCfUktC0w5T3:zX6Zglqk7WYPfLYr5GeL+kfRX4nYY9

    • NanoCore

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

    • Checks computer location settings

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

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Tasks