Analysis

  • max time kernel
    116s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2024 03:49

General

  • Target

    3563dbeb13858a82043dd80569d8ac01dc4b8ced94b5ede3d7fc580449d74693.exe

  • Size

    219KB

  • MD5

    2f0400eb26401d0ced5d15b241d32971

  • SHA1

    c561c43a386ef74371e3b6e639f7c6e0ca71f8db

  • SHA256

    3563dbeb13858a82043dd80569d8ac01dc4b8ced94b5ede3d7fc580449d74693

  • SHA512

    53415da4c4bfd9287f5da3895f86912e1190acc0060b6a588a6593a384e41677a2be075267417f320925a0bf1664e18a8951ca7c52244756d5c1bcf090c1435c

  • SSDEEP

    6144:wyoZBJVsaVG6o9DYn3ZQ8n2Y7Rj0qzwe5Trq7exY:wF9+a86GDOXnF3zPTG79

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

10.9.0.62:54984

Mutex

3fd3a823-5c0e-4221-9672-0d2e5f5ef7e9

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    10.9.0.62

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-08-24T18:09:45.735575136Z

  • bypass_user_account_control

    true

  • bypass_user_account_control_data

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    54984

  • default_group

    Default

  • 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

    3fd3a823-5c0e-4221-9672-0d2e5f5ef7e9

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

  • 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.

  • Nanocore family
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3563dbeb13858a82043dd80569d8ac01dc4b8ced94b5ede3d7fc580449d74693.exe
    "C:\Users\Admin\AppData\Local\Temp\3563dbeb13858a82043dd80569d8ac01dc4b8ced94b5ede3d7fc580449d74693.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2344
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:2284
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        2⤵
          PID:2760
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          2⤵
          • Checks whether UAC is enabled
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          PID:2504

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/2344-0-0x000000007447E000-0x000000007447F000-memory.dmp

        Filesize

        4KB

      • memory/2344-1-0x0000000000D70000-0x0000000000DAE000-memory.dmp

        Filesize

        248KB

      • memory/2344-2-0x0000000074470000-0x0000000074B5E000-memory.dmp

        Filesize

        6.9MB

      • memory/2344-3-0x0000000074470000-0x0000000074B5E000-memory.dmp

        Filesize

        6.9MB

      • memory/2344-4-0x0000000000A60000-0x0000000000A9C000-memory.dmp

        Filesize

        240KB

      • memory/2344-19-0x0000000074470000-0x0000000074B5E000-memory.dmp

        Filesize

        6.9MB

      • memory/2504-16-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2504-18-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2504-14-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2504-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2504-10-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2504-8-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2504-7-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2504-6-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/2504-21-0x0000000000380000-0x000000000038A000-memory.dmp

        Filesize

        40KB

      • memory/2504-22-0x0000000000390000-0x00000000003AE000-memory.dmp

        Filesize

        120KB

      • memory/2504-23-0x0000000000440000-0x000000000044A000-memory.dmp

        Filesize

        40KB

      • memory/2504-24-0x0000000074430000-0x0000000074B1E000-memory.dmp

        Filesize

        6.9MB

      • memory/2504-25-0x0000000074430000-0x0000000074B1E000-memory.dmp

        Filesize

        6.9MB