Analysis

  • max time kernel
    143s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    14-06-2024 02:44

General

  • Target

    SY1HWascuqe8wEN.exe

  • Size

    361KB

  • MD5

    a8f2d991ebabb3977ddf17fe93a5d4db

  • SHA1

    26a48de7a0c3833f1dff6bf0098e41f450eb9df1

  • SHA256

    2a6977944845d772cb0b7ea39725b00690d809b7d05845df349de7dc0681cff4

  • SHA512

    0ceb4e88ab889dc95da797295927716f37a84dc741308442267f85469900cc66700a32fd882f0d7bec90303263c227b549c8fb7b50e7d4f4883e8c4c97ee7033

  • SSDEEP

    6144:d6NZGDToBQE60VhejHs4d3QTp9TwfOqlbt1VrZyTGmJbW/rIKemao9Hj2SAF7U2l:d6NZGDToBQE60VhejMg3rfOKTXubop7Q

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

111.118.183.211:5678

grace147.ddns.net:5678

Mutex

ccedb01a-467a-424c-9afe-02824128a6c0

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    grace147.ddns.net

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2020-03-15T04:25:54.002365836Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    true

  • connect_delay

    4000

  • connection_port

    5678

  • default_group

    INVOICE

  • 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

    ccedb01a-467a-424c-9afe-02824128a6c0

  • mutex_timeout

    5000

  • prevent_system_sleep

    true

  • primary_connection_host

    111.118.183.211

  • 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

Signatures

  • NanoCore

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

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SY1HWascuqe8wEN.exe
    "C:\Users\Admin\AppData\Local\Temp\SY1HWascuqe8wEN.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2448
    • C:\Users\Admin\AppData\Local\Temp\SY1HWascuqe8wEN.exe
      "{path}"
      2⤵
        PID:1984
      • C:\Users\Admin\AppData\Local\Temp\SY1HWascuqe8wEN.exe
        "{path}"
        2⤵
          PID:2028
        • C:\Users\Admin\AppData\Local\Temp\SY1HWascuqe8wEN.exe
          "{path}"
          2⤵
          • Checks whether UAC is enabled
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          PID:2016

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2016-20-0x00000000744F0000-0x0000000074A9B000-memory.dmp
        Filesize

        5.7MB

      • memory/2016-14-0x0000000000400000-0x0000000000438000-memory.dmp
        Filesize

        224KB

      • memory/2016-23-0x00000000744F0000-0x0000000074A9B000-memory.dmp
        Filesize

        5.7MB

      • memory/2016-4-0x0000000000400000-0x0000000000438000-memory.dmp
        Filesize

        224KB

      • memory/2016-8-0x0000000000400000-0x0000000000438000-memory.dmp
        Filesize

        224KB

      • memory/2016-10-0x0000000000400000-0x0000000000438000-memory.dmp
        Filesize

        224KB

      • memory/2016-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
        Filesize

        4KB

      • memory/2016-18-0x0000000000400000-0x0000000000438000-memory.dmp
        Filesize

        224KB

      • memory/2016-6-0x0000000000400000-0x0000000000438000-memory.dmp
        Filesize

        224KB

      • memory/2016-19-0x00000000744F0000-0x0000000074A9B000-memory.dmp
        Filesize

        5.7MB

      • memory/2016-16-0x0000000000400000-0x0000000000438000-memory.dmp
        Filesize

        224KB

      • memory/2448-1-0x00000000744F0000-0x0000000074A9B000-memory.dmp
        Filesize

        5.7MB

      • memory/2448-0-0x00000000744F1000-0x00000000744F2000-memory.dmp
        Filesize

        4KB

      • memory/2448-3-0x00000000744F0000-0x0000000074A9B000-memory.dmp
        Filesize

        5.7MB

      • memory/2448-22-0x00000000744F0000-0x0000000074A9B000-memory.dmp
        Filesize

        5.7MB

      • memory/2448-2-0x00000000744F0000-0x0000000074A9B000-memory.dmp
        Filesize

        5.7MB