General

  • Target

    55d261de4ebfec14610e3019bdb47e1d.exe

  • Size

    663KB

  • Sample

    220514-rpjkyaacb8

  • MD5

    55d261de4ebfec14610e3019bdb47e1d

  • SHA1

    a89750499dca367037b9388a820e8fb56cd2f3bb

  • SHA256

    28a8b5760f88ff56fccac79f506aa87de847161f5b3af7158792d098a60785dd

  • SHA512

    1866b89a217f81de6b106a6094e526a872380ba35f45d83d74ca890dd97da331e127f5007b7e194e06b85b74866948f950fbff17773442e664fb0a364d2b339e

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

194.5.98.208:50720

suchwoni13.ddns.net:50720

Mutex

b96b95d9-5642-498b-b1fc-e921a47a2e5a

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    suchwoni13.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2021-06-29T08:36:20.191838936Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    false

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    50720

  • default_group

    PUNK44

  • enable_debug_mode

    true

  • gc_threshold

    1.0485779e+07

  • keep_alive_timeout

    30000

  • keyboard_logging

    false

  • lan_timeout

    2500

  • max_packet_size

    1.0485779e+07

  • mutex

    b96b95d9-5642-498b-b1fc-e921a47a2e5a

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    194.5.98.208

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5009

  • run_delay

    0

  • run_on_startup

    false

  • set_critical_process

    false

  • timeout_interval

    5008

  • use_custom_dns_server

    false

  • version

    1.2.2.0

  • wan_timeout

    8000

Targets

    • Target

      55d261de4ebfec14610e3019bdb47e1d.exe

    • Size

      663KB

    • MD5

      55d261de4ebfec14610e3019bdb47e1d

    • SHA1

      a89750499dca367037b9388a820e8fb56cd2f3bb

    • SHA256

      28a8b5760f88ff56fccac79f506aa87de847161f5b3af7158792d098a60785dd

    • SHA512

      1866b89a217f81de6b106a6094e526a872380ba35f45d83d74ca890dd97da331e127f5007b7e194e06b85b74866948f950fbff17773442e664fb0a364d2b339e

    • NanoCore

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

    • suricata: ET MALWARE Possible NanoCore C2 60B

      suricata: ET MALWARE Possible NanoCore C2 60B

    • Checks computer location settings

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

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

3
T1082

Tasks