Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260706-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260706-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/07/2026, 06:11

General

  • Target
    dcaczhjitqazbalk.exe
  • Size 10.9MB
  • Sample260709-gxmbpad17t
  • SHA256 830a22ea4eb2ebb8c60c7731fa5175d3a315d023a812aea40147326cc4c8a4dd
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: CastleRAT

    CastleRAT is a trojan available in both Python and C variants.

  • Detects C variant of CastleRAT. 24 IoCs
  • Badlisted process makes network request 1 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

    Using powershell.exe command.

  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 32 IoCs
  • Unexpected DNS network traffic destination 25 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • 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.

  • Inno Setup is an open-source installation builder for Windows applications. 2 IoCs

    Inno Setup installer

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

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

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\dcaczhjitqazbalk.exe
    "C:\Users\Admin\AppData\Local\Temp\dcaczhjitqazbalk.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:6012
    • C:\Users\Admin\AppData\Local\Temp\is-QQLVWWFFAT.tmp\dcaczhjitqazbalk.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-QQLVWWFFAT.tmp\dcaczhjitqazbalk.tmp" /SL5="$701BC,10202427,893952,C:\Users\Admin\AppData\Local\Temp\dcaczhjitqazbalk.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2780
      • C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\pythonw.exe
        "C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\pythonw.exe" "C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\run.pyw"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Unexpected DNS network traffic destination
        • Suspicious use of WriteProcessMemory
        PID:5744
        • C:\Windows\System32\schtasks.exe
          C:\Windows\System32\schtasks.exe /Create /F /TN dcaczhjitqazbalk /XML C:\Users\Admin\AppData\Local\Temp\t.xml
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:4816
        • C:\Windows\System32\Wbem\wmic.exe
          wmic process where name='pythonw.exe' get processid,commandline
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4672
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c "ver"
          4⤵
            PID:1528
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell.exe -NoProfile -NonInteractive -Command "(Get-CimInstance Win32_OperatingSystem).Caption"
            4⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3208
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell.exe -NoProfile -NonInteractive -Command "(Get-CimInstance -Namespace root/SecurityCenter2 -ClassName AntiVirusProduct).displayName"
            4⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            PID:3444
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell.exe -NoProfile -NonInteractive -NoLogo -Command -
            4⤵
            • Badlisted process makes network request
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:2792
            • C:\ProgramData\ciYbwebsb6Q0ZPDZ\pythonw.exe
              "C:\ProgramData\ciYbwebsb6Q0ZPDZ\pythonw.exe" "C:\ProgramData\ciYbwebsb6Q0ZPDZ\music.pyc"
              5⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious use of WriteProcessMemory
              PID:3304
              • C:\ProgramData\ciYbwebsb6Q0ZPDZ\pythonw.exe
                "C:\ProgramData\ciYbwebsb6Q0ZPDZ\pythonw.exe" "C:\ProgramData\ciYbwebsb6Q0ZPDZ\music.pyc"
                6⤵
                • Executes dropped EXE
                • Loads dropped DLL
                • Suspicious behavior: AddClipboardFormatListener
                • Suspicious use of SetWindowsHookEx
                • Suspicious use of WriteProcessMemory
                PID:2296
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"
                  7⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:4408
    • C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\pythonw.exe
      C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\pythonw.exe
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1968
    • C:\ProgramData\ciYbwebsb6Q0ZPDZ\pythonw.exe
      C:\ProgramData\ciYbwebsb6Q0ZPDZ\pythonw.exe
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:5972

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          ciYbwebsb6Q0ZPDZ.lnk

          • Path C:\ProgramData\ciYbwebsb6Q0ZPDZ.lnk
          • Size 841B
          • SHA256 7bbe177e149be4d238a7d23fc45db77012c7744fc896f865fa87b0fb7befab6d
          • MD5 SHA1 SHA512 TLSH

          SI1VrWfezbAjKDriYc1D9.Jw

          • Path C:\ProgramData\ciYbwebsb6Q0ZPDZ\SI1VrWfezbAjKDriYc1D9.Jw
          • Size 12.2MB
          • SHA256 5f572c6825a96014233e15f897754ff881ed82b5a5fde91dd331a043d055fd77
          • MD5 SHA1 SHA512 SSDEEP TLSH

          VCRUNTIME140.dll

          • Path C:\ProgramData\ciYbwebsb6Q0ZPDZ\VCRUNTIME140.dll
          • Size 117KB
          • SHA256 36585912e5eaf83ba9fea0631534f690ccdc2d7ba91537166fe53e56c221e153
          • MD5 SHA1 SHA512 SSDEEP TLSH

          _ctypes.pyd

          • Path C:\ProgramData\ciYbwebsb6Q0ZPDZ\_ctypes.pyd
          • Size 128KB
          • SHA256 f63c6c7e71c342084d8f1a108786ca6975a52cefef8be32cc2589e6e2fe060c8
          • MD5 SHA1 SHA512 SSDEEP TLSH

          music.pyc

          • Path C:\ProgramData\ciYbwebsb6Q0ZPDZ\music.pyc
          • Size 144KB
          • SHA256 9e7ed9ee536395a38a9f4094237b6d9b0ebed19cbb703610235d1783f685ddb7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          python3.DLL

          • Path C:\ProgramData\ciYbwebsb6Q0ZPDZ\python3.DLL
          • Size 68KB
          • SHA256 a5c6a329698490a035133433928d04368ce6285bb91a9d074fc285de4c9a32a4
          • MD5 SHA1 SHA512 SSDEEP TLSH

          python313._pth

          • Path C:\ProgramData\ciYbwebsb6Q0ZPDZ\python313._pth
          • Size 80B
          • SHA256 35ddf94682ff9aa713a8d63557242ad00f3f28fdd39337f02c3bda4c0f791577
          • MD5 SHA1 SHA512 TLSH

          python313.dll

          • Path C:\ProgramData\ciYbwebsb6Q0ZPDZ\python313.dll
          • Size 5.8MB
          • SHA256 0c0a66505093b6a4bb3475f716bd3d9552095776f6a124709c13b3f9552c7d99
          • MD5 SHA1 SHA512 SSDEEP TLSH

          python313.zip

          • Path C:\ProgramData\ciYbwebsb6Q0ZPDZ\python313.zip
          • Size 3.6MB
          • SHA256 4141b13fe0ce35edfc1c819f1f3366e1476f99221ef042b270bd6f8ca6aaf35a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          pythonw.exe

          • Path C:\ProgramData\ciYbwebsb6Q0ZPDZ\pythonw.exe
          • Size 99KB
          • SHA256 c596446b0fe4a9df90dac9f44150c94b4133fdd9fcd297a295c319c9ec0c7ec6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          VCRUNTIME140.dll

          • Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\VCRUNTIME140.dll
          • Size 116KB
          • SHA256 4d292623516f65c80482081e62d5dadb759dc16e851de5db24c3cbb57b87db83
          • MD5 SHA1 SHA512 SSDEEP TLSH

          _bz2.pyd

          • Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\_bz2.pyd
          • Size 82KB
          • SHA256 00b8ca9a338d2b47285c9e56d6d893db2a999b47216756f18439997fb80a56e3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          _ctypes.pyd

          • Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\_ctypes.pyd
          • Size 121KB
          • SHA256 c148292328f0aab7863af82f54f613961e7cb95b7215f7a81cafaf45bd4c42b7
          • MD5 SHA1 SHA512 SSDEEP TLSH

          _hashlib.pyd

          • Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\_hashlib.pyd
          • Size 63KB
          • SHA256 87dd0c858620287454fd6d31d52b6a48eddbb2a08e09e8b2d9fdb0b92200d766
          • MD5 SHA1 SHA512 SSDEEP TLSH

          _lzma.pyd

          • Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\_lzma.pyd
          • Size 155KB
          • SHA256 f5e01b516c2c23035f7703e23569dec26c5616c05a929b2580ae474a5c6722c5
          • MD5 SHA1 SHA512 SSDEEP TLSH

          _queue.pyd

          • Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\_queue.pyd
          • Size 31KB
          • SHA256 3f8e7e6aa13b417acc78b63434fb1144e6319a010a9fc376c54d6e69b638fe4c
          • MD5 SHA1 SHA512 SSDEEP TLSH

          _socket.pyd

          • Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\_socket.pyd
          • Size 77KB
          • SHA256 a19e3c7c03ef1b5625790b1c9c42594909311ab6df540fbf43c6aa93300ab166
          • MD5 SHA1 SHA512 SSDEEP TLSH

          _ssl.pyd

          • Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\_ssl.pyd
          • Size 174KB
          • SHA256 ba5388d6a6557d431e086734a3323621dc447f63ba299b0a815e5837cf869678
          • MD5 SHA1 SHA512 SSDEEP TLSH

          libcrypto-3.dll

          • Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\libcrypto-3.dll
          • Size 5.0MB
          • SHA256 05fe080eab7fc535c51e10c1bd76a2f3e6217f9c91a25034774588881c3f99de
          • MD5 SHA1 SHA512 SSDEEP TLSH

          libffi-8.dll

          • Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\libffi-8.dll
          • Size 38KB
          • SHA256 eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          libssl-3.dll

          • Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\libssl-3.dll
          • Size 768KB
          • SHA256 2e9fbcd8f7fdc13a5179533239811456554f2b3aa2fb10e1b17be0df81c79006
          • MD5 SHA1 SHA512 SSDEEP TLSH

          python3.DLL

          • Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\python3.DLL
          • Size 65KB
          • SHA256 db84bc052cfb121fe4db36242ba5f1d2c031b600ef5d8d752cf25b7c02b6bac6
          • MD5 SHA1 SHA512 SSDEEP TLSH

          python311._pth

          • Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\python311._pth
          • Size 31B
          • SHA256 5ab6eef584e230b321ff0ecbf7658b4343a7b864c9f96ace02ec10d203f9829b
          • MD5 SHA1 SHA512

          python311.dll

          • Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\python311.dll
          • Size 5.5MB
          • SHA256 0817a2a657a24c0d5fbb60df56960f42fc66b3039d522ec952dab83e2d869364
          • MD5 SHA1 SHA512 SSDEEP TLSH

          python311.zip

          • Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\python311.zip
          • Size 4.1MB
          • SHA256 7d0f59c930e7d3d9352399ea3c95c0272489b3c09a8e95faaedfa8a23e20e5b1
          • MD5 SHA1 SHA512 SSDEEP TLSH

          pythonw.exe

          • Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\pythonw.exe
          • Size 99KB
          • SHA256 d5355e1de2a5195dccb1ba524b146aa7705be71af18d876819756838251b37b3
          • MD5 SHA1 SHA512 SSDEEP TLSH

          run.pyw

          • Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\run.pyw
          • Size 125KB
          • SHA256 1ca17239f5bec17ef244fc55357c6d0560337d7cadd1bb61574ab010f14a8d14
          • MD5 SHA1 SHA512 SSDEEP TLSH

          select.pyd

          • Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\select.pyd
          • Size 29KB
          • SHA256 bae0974390945520eb99ab32486c6a964691f8f4a028ac408d98fa8fb0db7d90
          • MD5 SHA1 SHA512 SSDEEP TLSH

          unicodedata.pyd

          • Path C:\Users\Admin\AppData\Local\Microsoft\WindowsApps\Microsoft.PythonApp_tgtqg2cv1de22\unicodedata.pyd
          • Size 1.1MB
          • SHA256 37c68617fa02a2cadced17ef724e2d450ef12a8a37215da789a4679fde1c5c02
          • MD5 SHA1 SHA512 SSDEEP TLSH

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 1KB
          • SHA256 2706f7a3cde18304b8eb65dc0fa6d884f09a46a78e320302afda951d20885534
          • MD5 SHA1 SHA512 TLSH

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 1KB
          • SHA256 1023b4b4dea252660aa70f36c48403e5df4ab6d1c05ba06f07f085c15c7089eb
          • MD5 SHA1 SHA512 TLSH

          __PSScriptPolicyTest_slsnlymb.bq4.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_slsnlymb.bq4.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512 TLSH

          dcaczhjitqazbalk.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\is-QQLVWWFFAT.tmp\dcaczhjitqazbalk.tmp
          • Size 4.2MB
          • SHA256 100d14ecd815f60a71ebdb71b95c51eaf72fbf9bb132df02fdbe9d1eea869b2a
          • MD5 SHA1 SHA512 SSDEEP TLSH

          t.xml

          • Path C:\Users\Admin\AppData\Local\Temp\t.xml
          • Size 2KB
          • SHA256 0eff26d3fff16908a6c232070fc3f71eea35a49e5ffb70939b4052c74bdc6ce4
          • MD5 SHA1 SHA512 TLSH

          memory/2296-275-0x000001A8F5360000-0x000001A8F5506000-memory.dmp

          memory/2296-288-0x000001A8F5360000-0x000001A8F5506000-memory.dmp

          memory/2296-300-0x000001A8F5360000-0x000001A8F5506000-memory.dmp

          memory/2296-289-0x000001A8F5360000-0x000001A8F5506000-memory.dmp

          memory/2296-291-0x000001A8F5360000-0x000001A8F5506000-memory.dmp

          memory/2296-293-0x000001A8F5360000-0x000001A8F5506000-memory.dmp

          memory/2296-294-0x000001A8F5360000-0x000001A8F5506000-memory.dmp

          memory/2296-295-0x000001A8F5360000-0x000001A8F5506000-memory.dmp

          memory/2296-297-0x000001A8F5360000-0x000001A8F5506000-memory.dmp

          memory/2296-298-0x000001A8F5360000-0x000001A8F5506000-memory.dmp

          memory/2296-296-0x000001A8F5360000-0x000001A8F5506000-memory.dmp

          memory/2296-292-0x000001A8F5360000-0x000001A8F5506000-memory.dmp

          memory/2296-290-0x000001A8F5360000-0x000001A8F5506000-memory.dmp

          memory/2296-287-0x000001A8F5360000-0x000001A8F5506000-memory.dmp

          memory/2296-285-0x000001A8F5360000-0x000001A8F5506000-memory.dmp

          memory/2296-273-0x000001A8F5360000-0x000001A8F5506000-memory.dmp

          memory/2296-274-0x000001A8F5360000-0x000001A8F5506000-memory.dmp

          memory/2296-276-0x000001A8F5360000-0x000001A8F5506000-memory.dmp

          memory/2296-272-0x000001A8F5360000-0x000001A8F5506000-memory.dmp

          memory/2780-6-0x00000000012D0000-0x00000000012D1000-memory.dmp

          memory/2780-86-0x0000000000C70000-0x00000000010BC000-memory.dmp

          memory/2780-9-0x00000000040C0000-0x0000000004200000-memory.dmp

          memory/2780-8-0x00000000040C0000-0x0000000004200000-memory.dmp

          memory/2792-149-0x000001DB1DC20000-0x000001DB1DCD2000-memory.dmp

          memory/2792-150-0x000001DB1DC00000-0x000001DB1DC12000-memory.dmp

          memory/2792-151-0x000001DB1D790000-0x000001DB1D79A000-memory.dmp

          memory/3208-129-0x000002A2F5550000-0x000002A2F5602000-memory.dmp

          memory/3208-122-0x000002A2F5280000-0x000002A2F52A2000-memory.dmp

          memory/3208-131-0x000002A2F5790000-0x000002A2F57BA000-memory.dmp

          memory/3208-130-0x000002A2F5310000-0x000002A2F531A000-memory.dmp

          memory/3208-128-0x000002A2F5530000-0x000002A2F554E000-memory.dmp

          memory/3208-132-0x000002A2F5790000-0x000002A2F57B4000-memory.dmp

          memory/3304-261-0x000002D5CC630000-0x000002D5CC7D6000-memory.dmp

          memory/3304-260-0x000002D5C9580000-0x000002D5C9581000-memory.dmp

          memory/3304-263-0x000002D5CC630000-0x000002D5CC7D6000-memory.dmp

          memory/3304-265-0x000002D5CC630000-0x000002D5CC7D6000-memory.dmp

          memory/3304-264-0x000002D5CC630000-0x000002D5CC7D6000-memory.dmp

          memory/3304-262-0x000002D5CC630000-0x000002D5CC7D6000-memory.dmp

          memory/4408-282-0x00000262EF6E0000-0x00000262EF792000-memory.dmp

          memory/4408-279-0x00000262EF690000-0x00000262EF6D8000-memory.dmp

          memory/4408-283-0x00000262EF8C0000-0x00000262EF8DE000-memory.dmp

          memory/6012-0-0x0000000000E60000-0x0000000000F49000-memory.dmp

          memory/6012-87-0x0000000000E60000-0x0000000000F49000-memory.dmp