Analysis

  • max time kernel
    139s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-11-2024 02:29

General

  • Target

    2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe

  • Size

    720KB

  • MD5

    782965f857a2c2dbc179b7e016386f61

  • SHA1

    3d16a97e2733daa4c2313035e134e763497bb948

  • SHA256

    2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a

  • SHA512

    a1c98f6c20b9b5692069ac79d43ed06481faf963da10ad24b83bf4d76c44db2fca87e5237205be1767b83781ea63e0d8993dfc86bb08743e6756482771e01272

  • SSDEEP

    12288:2lx+dhZfm1NjNJrhCByke+7/wrhQUKLxfguWTe/OSzT7Ad9hg7pzm9owtSE3:w+d/f+Njt+7IrylxfguWTelK39oL

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 10 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe
    "C:\Users\Admin\AppData\Local\Temp\2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.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:4156
    • 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\2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5068
    • C:\Users\Admin\AppData\Local\Temp\2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe
      "C:\Users\Admin\AppData\Local\Temp\2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe"
      2⤵
        PID:3204
      • C:\Users\Admin\AppData\Local\Temp\2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.exe
        "C:\Users\Admin\AppData\Local\Temp\2634af4fb7d0c056e1f96809592bfcd3ee9f3fedf0ad52f9340b67d3b67d9f0a.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:4012
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "PCI Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpDAFE.tmp"
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:2816
        • C:\Windows\SysWOW64\schtasks.exe
          "schtasks.exe" /create /f /tn "PCI Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpDD41.tmp"
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:4988

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2nivoxw0.jiz.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

      Filesize

      1KB

      MD5

      df4d0e9c3f264d12150e22239d449c59

      SHA1

      90649a3bb8a2853535b8944966adf577192f6698

      SHA256

      2d2ad709a852677b5174d6831d875fd009a38a7df6d8e4b17b97beff2a3d5550

      SHA512

      59110fb883f45870a5e482f1c3c0344707cd9466e56867818fa0c652f8faa145fa423d34b0ee36a4457cd142b94acc693b1a9ed8f853bccb39dc08826797a469

    • C:\Users\Admin\AppData\Local\Temp\tmpDD41.tmp

      Filesize

      1KB

      MD5

      09063e7cc0d66a9aed53f2e2d2409103

      SHA1

      96f8fa15b5a3b2646f6691770a158c69ea7405a4

      SHA256

      369b159ef60c988373a3c85e0b10b5ff2178504465f11965ab0d66f14124f9a1

      SHA512

      c460a3cab70270c5cefe0464df6ddb9d50bb58ac9c49c7e62c9a55cc6bc30b6411cbc28ae418dd91b1ba1190f8394ccd937452ae70d7062740207d2ffc68e2ec

    • memory/4012-66-0x0000000006F00000-0x0000000006F12000-memory.dmp

      Filesize

      72KB

    • memory/4012-73-0x0000000006FB0000-0x0000000006FC4000-memory.dmp

      Filesize

      80KB

    • memory/4012-63-0x0000000006EB0000-0x0000000006EC2000-memory.dmp

      Filesize

      72KB

    • memory/4012-69-0x0000000006F30000-0x0000000006F40000-memory.dmp

      Filesize

      64KB

    • memory/4012-68-0x0000000006F20000-0x0000000006F34000-memory.dmp

      Filesize

      80KB

    • memory/4012-67-0x0000000006F10000-0x0000000006F1E000-memory.dmp

      Filesize

      56KB

    • memory/4012-42-0x0000000005510000-0x000000000551A000-memory.dmp

      Filesize

      40KB

    • memory/4012-65-0x0000000006EF0000-0x0000000006EFE000-memory.dmp

      Filesize

      56KB

    • memory/4012-11-0x0000000000400000-0x0000000000438000-memory.dmp

      Filesize

      224KB

    • memory/4012-43-0x0000000006640000-0x000000000665E000-memory.dmp

      Filesize

      120KB

    • memory/4012-85-0x0000000074A50000-0x0000000075200000-memory.dmp

      Filesize

      7.7MB

    • memory/4012-16-0x0000000074A50000-0x0000000075200000-memory.dmp

      Filesize

      7.7MB

    • memory/4012-84-0x0000000074A50000-0x0000000075200000-memory.dmp

      Filesize

      7.7MB

    • memory/4012-44-0x0000000005AD0000-0x0000000005ADA000-memory.dmp

      Filesize

      40KB

    • memory/4012-71-0x0000000006F70000-0x0000000006F7E000-memory.dmp

      Filesize

      56KB

    • memory/4012-64-0x0000000006EC0000-0x0000000006EDA000-memory.dmp

      Filesize

      104KB

    • memory/4012-72-0x0000000006F80000-0x0000000006FAE000-memory.dmp

      Filesize

      184KB

    • memory/4012-35-0x0000000074A50000-0x0000000075200000-memory.dmp

      Filesize

      7.7MB

    • memory/4012-70-0x0000000006F40000-0x0000000006F54000-memory.dmp

      Filesize

      80KB

    • memory/4156-3-0x00000000054C0000-0x0000000005552000-memory.dmp

      Filesize

      584KB

    • memory/4156-4-0x0000000005580000-0x000000000558A000-memory.dmp

      Filesize

      40KB

    • memory/4156-2-0x0000000005B60000-0x0000000006104000-memory.dmp

      Filesize

      5.6MB

    • memory/4156-14-0x0000000074A50000-0x0000000075200000-memory.dmp

      Filesize

      7.7MB

    • memory/4156-10-0x0000000002D60000-0x0000000002DDA000-memory.dmp

      Filesize

      488KB

    • memory/4156-1-0x0000000000A30000-0x0000000000AEA000-memory.dmp

      Filesize

      744KB

    • memory/4156-9-0x0000000074A50000-0x0000000075200000-memory.dmp

      Filesize

      7.7MB

    • memory/4156-8-0x0000000074A5E000-0x0000000074A5F000-memory.dmp

      Filesize

      4KB

    • memory/4156-0-0x0000000074A5E000-0x0000000074A5F000-memory.dmp

      Filesize

      4KB

    • memory/4156-7-0x00000000059C0000-0x00000000059DC000-memory.dmp

      Filesize

      112KB

    • memory/4156-6-0x0000000074A50000-0x0000000075200000-memory.dmp

      Filesize

      7.7MB

    • memory/4156-5-0x0000000005820000-0x00000000058BC000-memory.dmp

      Filesize

      624KB

    • memory/5068-18-0x0000000074A50000-0x0000000075200000-memory.dmp

      Filesize

      7.7MB

    • memory/5068-59-0x0000000007FB0000-0x000000000862A000-memory.dmp

      Filesize

      6.5MB

    • memory/5068-60-0x0000000007960000-0x000000000797A000-memory.dmp

      Filesize

      104KB

    • memory/5068-61-0x00000000079D0000-0x00000000079DA000-memory.dmp

      Filesize

      40KB

    • memory/5068-58-0x0000000007880000-0x0000000007923000-memory.dmp

      Filesize

      652KB

    • memory/5068-57-0x0000000006C50000-0x0000000006C6E000-memory.dmp

      Filesize

      120KB

    • memory/5068-46-0x0000000006C10000-0x0000000006C42000-memory.dmp

      Filesize

      200KB

    • memory/5068-47-0x0000000070610000-0x000000007065C000-memory.dmp

      Filesize

      304KB

    • memory/5068-82-0x0000000074A50000-0x0000000075200000-memory.dmp

      Filesize

      7.7MB

    • memory/5068-37-0x0000000006640000-0x000000000665E000-memory.dmp

      Filesize

      120KB

    • memory/5068-38-0x00000000066D0000-0x000000000671C000-memory.dmp

      Filesize

      304KB

    • memory/5068-21-0x0000000005730000-0x0000000005796000-memory.dmp

      Filesize

      408KB

    • memory/5068-31-0x00000000060A0000-0x00000000063F4000-memory.dmp

      Filesize

      3.3MB

    • memory/5068-23-0x0000000005F30000-0x0000000005F96000-memory.dmp

      Filesize

      408KB

    • memory/5068-19-0x0000000005590000-0x00000000055B2000-memory.dmp

      Filesize

      136KB

    • memory/5068-74-0x0000000007BE0000-0x0000000007C76000-memory.dmp

      Filesize

      600KB

    • memory/5068-75-0x0000000007B60000-0x0000000007B71000-memory.dmp

      Filesize

      68KB

    • memory/5068-76-0x0000000007B90000-0x0000000007B9E000-memory.dmp

      Filesize

      56KB

    • memory/5068-77-0x0000000007BA0000-0x0000000007BB4000-memory.dmp

      Filesize

      80KB

    • memory/5068-78-0x0000000007CA0000-0x0000000007CBA000-memory.dmp

      Filesize

      104KB

    • memory/5068-79-0x0000000007C80000-0x0000000007C88000-memory.dmp

      Filesize

      32KB

    • memory/5068-17-0x0000000074A50000-0x0000000075200000-memory.dmp

      Filesize

      7.7MB

    • memory/5068-13-0x0000000002CB0000-0x0000000002CE6000-memory.dmp

      Filesize

      216KB

    • memory/5068-15-0x0000000005890000-0x0000000005EB8000-memory.dmp

      Filesize

      6.2MB