Analysis

  • max time kernel
    136s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-11-2024 07:15

General

  • Target

    1ee4aca2ed3fbc7d17f8a86c751c1cc2.exe

  • Size

    767KB

  • MD5

    1ee4aca2ed3fbc7d17f8a86c751c1cc2

  • SHA1

    79fdfd56292f04c800afaa837b445e780355f3fb

  • SHA256

    a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80

  • SHA512

    2aa63b5a446b06d0e1149935ab3ea4803d797355ae4ac092abd5c3e7395bc9bb1dcd56f4489b144bffea42c916f9b22be250a09fd22634ba8de04a054cb7a910

  • SSDEEP

    12288:WAghZfmc9iuf6+U4yE4tbq8OzrO3D3GY76d0QQ9qUqkhwHGnpaU:bg/fz16+HyAziX700QQ9dqkhGsZ

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

66.63.187.113:1664

Mutex

a376f716-2f77-4943-a431-3a3bcb53b7c0

Attributes
  • activate_away_mode

    true

  • backup_connection_host

    66.63.187.113

  • backup_dns_server

    8.8.4.4

  • buffer_size

    65535

  • build_time

    2024-08-05T03:49:33.827385136Z

  • bypass_user_account_control

    false

  • bypass_user_account_control_data

    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

  • clear_access_control

    true

  • clear_zone_identifier

    false

  • connect_delay

    4000

  • connection_port

    1664

  • default_group

    CAT

  • 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

    a376f716-2f77-4943-a431-3a3bcb53b7c0

  • mutex_timeout

    5000

  • prevent_system_sleep

    false

  • primary_connection_host

    66.63.187.113

  • primary_dns_server

    8.8.8.8

  • request_elevation

    true

  • restart_delay

    5000

  • run_delay

    0

  • run_on_startup

    false

  • 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
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1ee4aca2ed3fbc7d17f8a86c751c1cc2.exe
    "C:\Users\Admin\AppData\Local\Temp\1ee4aca2ed3fbc7d17f8a86c751c1cc2.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3168
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\1ee4aca2ed3fbc7d17f8a86c751c1cc2.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4388
    • C:\Users\Admin\AppData\Local\Temp\1ee4aca2ed3fbc7d17f8a86c751c1cc2.exe
      "C:\Users\Admin\AppData\Local\Temp\1ee4aca2ed3fbc7d17f8a86c751c1cc2.exe"
      2⤵
        PID:4120
      • C:\Users\Admin\AppData\Local\Temp\1ee4aca2ed3fbc7d17f8a86c751c1cc2.exe
        "C:\Users\Admin\AppData\Local\Temp\1ee4aca2ed3fbc7d17f8a86c751c1cc2.exe"
        2⤵
          PID:3544
        • C:\Users\Admin\AppData\Local\Temp\1ee4aca2ed3fbc7d17f8a86c751c1cc2.exe
          "C:\Users\Admin\AppData\Local\Temp\1ee4aca2ed3fbc7d17f8a86c751c1cc2.exe"
          2⤵
          • Adds Run key to start application
          • Checks whether UAC is enabled
          • Drops file in Program Files directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4564
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks.exe" /create /f /tn "LAN Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpFEC3.tmp"
            3⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:400
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks.exe" /create /f /tn "LAN Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpFFFC.tmp"
            3⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:3140

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kwb3vmwn.m13.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\tmpFEC3.tmp

        Filesize

        1KB

        MD5

        b7d9947c750fca37238cafd7f7757d04

        SHA1

        e1357883a9111f6be61d965cd9cfa549ade76028

        SHA256

        088fec6dd30bb05c34167b74e596e811ef2bc120b75393bfeae9115cdb3226bd

        SHA512

        878a8b4c1c2e150a4da4b5e79f28f3cbcf07dd7b501465fe59d2ce1e41b66131562f32c6461a153750bd8daf30feeba654d0d8d923e8185c4b7cf9746ad8915e

      • C:\Users\Admin\AppData\Local\Temp\tmpFFFC.tmp

        Filesize

        1KB

        MD5

        6b30dba7972c92c9a1b881e88c108b15

        SHA1

        f76207985cc5a1f70edb2fb5bd45678f195a4564

        SHA256

        578f5b0ff051f02f8e0a67fc3424dad554fa9489875475ea624fbb63eabfcbf7

        SHA512

        e3dd368937f863cb07453de12173580fb63b8d3983db7119c24860f227c89ded76401c47607f5b1134d215d46fe2b40d4bc3d7299374f1e8abecdeaefc7b9099

      • memory/3168-5-0x0000000004EE0000-0x0000000004EEA000-memory.dmp

        Filesize

        40KB

      • memory/3168-3-0x0000000004E20000-0x0000000004EB2000-memory.dmp

        Filesize

        584KB

      • memory/3168-4-0x00007FFEDAF70000-0x00007FFEDB165000-memory.dmp

        Filesize

        2.0MB

      • memory/3168-2-0x00000000054C0000-0x0000000005A64000-memory.dmp

        Filesize

        5.6MB

      • memory/3168-6-0x00000000050C0000-0x000000000515C000-memory.dmp

        Filesize

        624KB

      • memory/3168-7-0x00000000062E0000-0x00000000062FC000-memory.dmp

        Filesize

        112KB

      • memory/3168-8-0x0000000004810000-0x000000000488A000-memory.dmp

        Filesize

        488KB

      • memory/3168-12-0x00007FFEDAF70000-0x00007FFEDB165000-memory.dmp

        Filesize

        2.0MB

      • memory/3168-1-0x0000000000390000-0x0000000000456000-memory.dmp

        Filesize

        792KB

      • memory/3168-0-0x00007FFEDAF70000-0x00007FFEDB165000-memory.dmp

        Filesize

        2.0MB

      • memory/4388-30-0x0000000006260000-0x000000000627E000-memory.dmp

        Filesize

        120KB

      • memory/4388-77-0x00000000078C0000-0x00000000078DA000-memory.dmp

        Filesize

        104KB

      • memory/4388-19-0x0000000005B50000-0x0000000005BB6000-memory.dmp

        Filesize

        408KB

      • memory/4388-18-0x0000000005AE0000-0x0000000005B46000-memory.dmp

        Filesize

        408KB

      • memory/4388-25-0x0000000005C30000-0x0000000005F84000-memory.dmp

        Filesize

        3.3MB

      • memory/4388-69-0x0000000007BD0000-0x000000000824A000-memory.dmp

        Filesize

        6.5MB

      • memory/4388-31-0x00000000067B0000-0x00000000067FC000-memory.dmp

        Filesize

        304KB

      • memory/4388-15-0x00000000054B0000-0x0000000005AD8000-memory.dmp

        Filesize

        6.2MB

      • memory/4388-13-0x0000000002960000-0x0000000002996000-memory.dmp

        Filesize

        216KB

      • memory/4388-81-0x00007FFEDAF70000-0x00007FFEDB165000-memory.dmp

        Filesize

        2.0MB

      • memory/4388-78-0x00000000078A0000-0x00000000078A8000-memory.dmp

        Filesize

        32KB

      • memory/4388-17-0x00000000053B0000-0x00000000053D2000-memory.dmp

        Filesize

        136KB

      • memory/4388-76-0x00000000077C0000-0x00000000077D4000-memory.dmp

        Filesize

        80KB

      • memory/4388-14-0x00007FFEDAF70000-0x00007FFEDB165000-memory.dmp

        Filesize

        2.0MB

      • memory/4388-75-0x00000000077B0000-0x00000000077BE000-memory.dmp

        Filesize

        56KB

      • memory/4388-43-0x0000000007240000-0x0000000007272000-memory.dmp

        Filesize

        200KB

      • memory/4388-44-0x0000000070D40000-0x0000000070D8C000-memory.dmp

        Filesize

        304KB

      • memory/4388-54-0x0000000006830000-0x000000000684E000-memory.dmp

        Filesize

        120KB

      • memory/4388-55-0x0000000007480000-0x0000000007523000-memory.dmp

        Filesize

        652KB

      • memory/4388-74-0x0000000007780000-0x0000000007791000-memory.dmp

        Filesize

        68KB

      • memory/4388-72-0x0000000007800000-0x0000000007896000-memory.dmp

        Filesize

        600KB

      • memory/4388-71-0x0000000007600000-0x000000000760A000-memory.dmp

        Filesize

        40KB

      • memory/4388-70-0x0000000007580000-0x000000000759A000-memory.dmp

        Filesize

        104KB

      • memory/4564-40-0x00000000057A0000-0x00000000057BE000-memory.dmp

        Filesize

        120KB

      • memory/4564-68-0x0000000006F80000-0x0000000006F94000-memory.dmp

        Filesize

        80KB

      • memory/4564-67-0x0000000006F50000-0x0000000006F7E000-memory.dmp

        Filesize

        184KB

      • memory/4564-66-0x0000000006F40000-0x0000000006F4E000-memory.dmp

        Filesize

        56KB

      • memory/4564-64-0x0000000006F00000-0x0000000006F10000-memory.dmp

        Filesize

        64KB

      • memory/4564-63-0x0000000006EF0000-0x0000000006F04000-memory.dmp

        Filesize

        80KB

      • memory/4564-61-0x0000000006ED0000-0x0000000006EDC000-memory.dmp

        Filesize

        48KB

      • memory/4564-60-0x0000000006EC0000-0x0000000006ED2000-memory.dmp

        Filesize

        72KB

      • memory/4564-65-0x0000000006F20000-0x0000000006F34000-memory.dmp

        Filesize

        80KB

      • memory/4564-62-0x0000000006EE0000-0x0000000006EEE000-memory.dmp

        Filesize

        56KB

      • memory/4564-59-0x0000000006EB0000-0x0000000006EBE000-memory.dmp

        Filesize

        56KB

      • memory/4564-58-0x0000000006E80000-0x0000000006E9A000-memory.dmp

        Filesize

        104KB

      • memory/4564-57-0x0000000006860000-0x0000000006872000-memory.dmp

        Filesize

        72KB

      • memory/4564-41-0x0000000005A70000-0x0000000005A7A000-memory.dmp

        Filesize

        40KB

      • memory/4564-39-0x0000000005790000-0x000000000579A000-memory.dmp

        Filesize

        40KB

      • memory/4564-16-0x00007FFEDAF70000-0x00007FFEDB165000-memory.dmp

        Filesize

        2.0MB

      • memory/4564-11-0x00007FFEDAF70000-0x00007FFEDB165000-memory.dmp

        Filesize

        2.0MB

      • memory/4564-9-0x0000000000400000-0x0000000000438000-memory.dmp

        Filesize

        224KB

      • memory/4564-82-0x00007FFEDAF70000-0x00007FFEDB165000-memory.dmp

        Filesize

        2.0MB