General

  • Target

    SecuriteInfo.com.Variant.Tedy.122593.7296.5298

  • Size

    1.0MB

  • Sample

    220520-3vqrzscdgk

  • MD5

    a3f9db216c595bbb5081ad0430248975

  • SHA1

    e06a7da7340e4e27d9737e58554ab4419116a0e2

  • SHA256

    647c540fe4c9f3dc5a06c978ff0644905b07a53517e637f674a089f866a135d0

  • SHA512

    3a6eb7aac3afed0438d1005f4534cc9a45b6697b8c0c266d1fae1b32cf84cd15726a005fc707ff2500f8b2bc045ea7ec20c715efeb4211e6b4b33d6c1afa56a5

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.220.69.56:6662

nwme22.duckdns.org:6662

Mutex

20fcb0e8-3b1f-4bdb-88e7-54967ec4f249

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    nwme22.duckdns.org

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2022-02-27T22:17:25.361662736Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    6662

  • default_group

    PDF

  • 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

    20fcb0e8-3b1f-4bdb-88e7-54967ec4f249

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    185.220.69.56

  • 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

      SecuriteInfo.com.Variant.Tedy.122593.7296.5298

    • Size

      1.0MB

    • MD5

      a3f9db216c595bbb5081ad0430248975

    • SHA1

      e06a7da7340e4e27d9737e58554ab4419116a0e2

    • SHA256

      647c540fe4c9f3dc5a06c978ff0644905b07a53517e637f674a089f866a135d0

    • SHA512

      3a6eb7aac3afed0438d1005f4534cc9a45b6697b8c0c266d1fae1b32cf84cd15726a005fc707ff2500f8b2bc045ea7ec20c715efeb4211e6b4b33d6c1afa56a5

    • NanoCore

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

    • Windows security bypass

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Windows security modification

    • Adds Run key to start application

    • Checks whether UAC is enabled

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Disabling Security Tools

2
T1089

Modify Registry

3
T1112

Virtualization/Sandbox Evasion

2
T1497

Discovery

Query Registry

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

5
T1082

Peripheral Device Discovery

1
T1120

Tasks