Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    23/10/2026, 18:10

General

  • Target
    install.2.0.02.exe
  • Size 38.9MB
  • Sample261023-wse45sty2p
  • SHA256 d83052f3603f335a00595c3d8b69c3b46a2561d8feadc35c911473bcb03907ac
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • 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.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Indicator Removal: Clear Persistence 1 TTPs 3 IoCs

    Clear artifacts associated with previously established persistence like scheduletasks on a host.

  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: LoadsDriver 5 IoCs
  • Suspicious use of WriteProcessMemory 3 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\install.2.0.02.exe
    "C:\Users\Admin\AppData\Local\Temp\install.2.0.02.exe"
    1⤵
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious behavior: EnumeratesProcesses
    PID:4276
  • C:\Users\Public\YoBB48\Dhyupa.exe
    "C:\Users\Public\YoBB48\Dhyupa.exe"
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Adds Run key to start application
    • Drops file in System32 directory
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2724
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath 'C:\ProgramData','C:\Users','C:\Program Files (x86)','C:\' -Force
      2⤵
      • Command and Scripting Interpreter: PowerShell
      PID:5364
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" cmd.exe /c SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Users\Public\YoBB48\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F
      2⤵
      • Indicator Removal: Clear Persistence
      • Suspicious use of WriteProcessMemory
      PID:3716
      • C:\Windows\system32\schtasks.exe
        SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Users\Public\YoBB48\" /t REG_DWORD /d 0 /f"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1164
      • C:\Windows\system32\schtasks.exe
        SCHTASKS /Run /TN "Task1"
        3⤵
          PID:428
        • C:\Windows\system32\schtasks.exe
          SCHTASKS /Delete /TN "Task1" /F
          3⤵
            PID:5836
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" cmd.exe /c SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\ProgramData\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F
          2⤵
          • Indicator Removal: Clear Persistence
          PID:1212
          • C:\Windows\system32\schtasks.exe
            SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\ProgramData\" /t REG_DWORD /d 0 /f"
            3⤵
            • Scheduled Task/Job: Scheduled Task
            PID:3332
          • C:\Windows\system32\schtasks.exe
            SCHTASKS /Run /TN "Task1"
            3⤵
              PID:2020
            • C:\Windows\system32\schtasks.exe
              SCHTASKS /Delete /TN "Task1" /F
              3⤵
                PID:2744
            • C:\Windows\System32\cmd.exe
              "C:\Windows\System32\cmd.exe" cmd.exe /c SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Users\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F
              2⤵
              • Indicator Removal: Clear Persistence
              PID:1352
              • C:\Windows\system32\schtasks.exe
                SCHTASKS /Create /F /TN "Task1" /SC ONCE /ST 00:00 /RL HIGHEST /RU "SYSTEM" /TR "cmd.exe /c reg add \"HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\" /v \"C:\Users\" /t REG_DWORD /d 0 /f"
                3⤵
                • Scheduled Task/Job: Scheduled Task
                PID:4084
          • C:\Windows\system32\cmd.exe
            "cmd.exe" /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public\YoBB48" /t REG_DWORD /d 0 /f
            1⤵
            • Executes a command shell one-liner
            PID:1132
          • C:\Windows\system32\cmd.exe
            cmd.exe
            1⤵
              PID:5908
            • C:\Users\Public\YoBB48\Dhyupa.exe
              "C:\Users\Public\YoBB48\Dhyupa.exe"
              1⤵
                PID:1548
              • C:\Windows\system32\cmd.exe
                "cmd.exe" /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\ProgramData" /t REG_DWORD /d 0 /f
                1⤵
                • Executes a command shell one-liner
                PID:5840

              Network

                    MITRE ATT&CK Enterprise v16

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    0DA515F703BB9B49479E8697ADB0B955_A825BDF54036A41AFA74CBF923C33A97

                    • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\0DA515F703BB9B49479E8697ADB0B955_A825BDF54036A41AFA74CBF923C33A97
                    • Size 1KB
                    • SHA256 d91769a3c599bbde8b22c983fb33ac0793804ad8bef05d30861a1ac6c19a29d7
                    • MD5 SHA1 SHA512 TLSH

                    B126FCE2445AEB4D678E59CB88147627_9759CCC75F54A99CEB69AE73B218D5C6

                    • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B126FCE2445AEB4D678E59CB88147627_9759CCC75F54A99CEB69AE73B218D5C6
                    • Size 1KB
                    • SHA256 a6b0f6a44dd96965a00f4e245bf186c12f6ff9f63bb9cb6c82d0e40b4ec561ac
                    • MD5 SHA1 SHA512 TLSH

                    0DA515F703BB9B49479E8697ADB0B955_A825BDF54036A41AFA74CBF923C33A97

                    • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\0DA515F703BB9B49479E8697ADB0B955_A825BDF54036A41AFA74CBF923C33A97
                    • Size 512B
                    • SHA256 d395c663fe56d944de2ec7f80183fb784d48fcc6e8acc22b1794493311c1ce6a
                    • MD5 SHA1 SHA512 TLSH

                    B126FCE2445AEB4D678E59CB88147627_9759CCC75F54A99CEB69AE73B218D5C6

                    • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B126FCE2445AEB4D678E59CB88147627_9759CCC75F54A99CEB69AE73B218D5C6
                    • Size 506B
                    • SHA256 d2826c25c1c9f2342cdd48f354af203943f12260db919554b2fa9a7f1dcd0cc9
                    • MD5 SHA1 SHA512 TLSH

                    Dhyupa.exe

                    • Path C:\Users\Public\YoBB48\Dhyupa.exe
                    • Size 135KB
                    • SHA256 676a2a7b94ca2f8ec76352ee656e4d075bb342bd7ad6efbc7c19c060001eace7
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    UxEnhance64.dll

                    • Path C:\Users\Public\YoBB48\UxEnhance64.dll
                    • Size 3.1MB
                    • SHA256 7516445585087951c3589bd73daa00efb0deece5544a62229742e83170bdf9d7
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    adoresd.dat

                    • Path C:\Users\Public\YoBB48\adoresd.dat
                    • Size 4.8MB
                    • SHA256 96b20e86690411d4caed9f72812d6d3e8f97ab8392a252f78e24bffec65c044a
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    msadox.tb

                    • Path C:\Users\Public\YoBB48\msadox.tb
                    • Size 8KB
                    • SHA256 d4628af53e512c8252fe834da786031c6c322b29898f2cc06bafe138dbf51d79
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    memory/1548-577-0x00007FF9FBFA0000-0x00007FF9FC4BE000-memory.dmp

                    memory/1548-589-0x00000211D6810000-0x00000211D70E7000-memory.dmp

                    memory/1548-591-0x00000211D6810000-0x00000211D70E7000-memory.dmp

                    memory/1548-590-0x00000211D6810000-0x00000211D70E7000-memory.dmp

                    memory/1548-592-0x00000211D6810000-0x00000211D70E7000-memory.dmp

                    memory/1548-593-0x00007FFA1D790000-0x00007FFA1D792000-memory.dmp

                    memory/1548-584-0x00007FFA1D7A0000-0x00007FFA1D7A2000-memory.dmp

                    memory/1548-580-0x00000211D6810000-0x00000211D70E7000-memory.dmp

                    memory/2724-560-0x000001E08DD20000-0x000001E08DDAA000-memory.dmp

                    memory/2724-567-0x000001E08CF80000-0x000001E08D857000-memory.dmp

                    memory/2724-545-0x000001E08CF80000-0x000001E08D857000-memory.dmp

                    memory/2724-550-0x000001E08CF80000-0x000001E08D857000-memory.dmp

                    memory/2724-561-0x000001E08DD20000-0x000001E08DDAA000-memory.dmp

                    memory/2724-562-0x000001E08DD20000-0x000001E08DDAA000-memory.dmp

                    memory/2724-556-0x000001E08CF80000-0x000001E08D857000-memory.dmp

                    memory/2724-530-0x00007FFA1D790000-0x00007FFA1D792000-memory.dmp

                    memory/2724-559-0x000001E08DD20000-0x000001E08DDAA000-memory.dmp

                    memory/2724-558-0x000001E08DC40000-0x000001E08DC8E000-memory.dmp

                    memory/2724-566-0x000001E08CF80000-0x000001E08D857000-memory.dmp

                    memory/2724-546-0x000001E08CF80000-0x000001E08D857000-memory.dmp

                    memory/2724-531-0x00007FF9FBFA0000-0x00007FF9FC4BE000-memory.dmp

                    memory/2724-536-0x000001E08CF80000-0x000001E08D857000-memory.dmp

                    memory/2724-538-0x00007FFA1D7A0000-0x00007FFA1D7A2000-memory.dmp

                    memory/2724-539-0x000001E08CF80000-0x000001E08D857000-memory.dmp

                    memory/2724-544-0x000001E08CF80000-0x000001E08D857000-memory.dmp

                    memory/2724-543-0x000001E08CF80000-0x000001E08D857000-memory.dmp

                    memory/4276-1-0x0000000000540000-0x000000000054E000-memory.dmp

                    memory/4276-2-0x0000000002160000-0x000000000216C000-memory.dmp

                    memory/4276-504-0x00007FFA119B0000-0x00007FFA119C2000-memory.dmp

                    memory/4276-0-0x0000000000540000-0x000000000054E000-memory.dmp

                    memory/4276-524-0x0000000000540000-0x000000000054E000-memory.dmp

                    memory/4276-525-0x00007FFA119B0000-0x00007FFA119C2000-memory.dmp