Analysis
- max time kernel
151s - max time network
119s - 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, 01:04
Static task
static1
Behavioral task
behavioral1
Sample
appinst_up001.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
appinst_up001.exe
Resource
win11ltsc2024-20260709-en
General
- Target appinst_up001.exe
- Size 36.8MB
- Sample260815-be3m3ada93
- SHA256 25f3ba93e3f82258936cedb4ca84dde646c58290a45a55b80f8866b0d9d19e3b
- MD5 2e91e6134e3e208df010fbd12e73b362
- SHA1 08e361bcb18d782986620fe4fb959604b44838ab
- SHA512 c0d45171eb781ddffff9b06991a5fc4042c5beb18b7ab4d3707b32e6acb84f65fd3d5c561f64666a9a663a9fb13c37978525ca2d5a5d9ebc92e9dcc8ff5f24c7
- SSDEEP 196608:AFnmfRW0ATZPh7c2Qp3BqtiEPFNPyDhC81eHI8:4SRgXQhDhf1uB
- TLSH T10D87F84ABB41CDD9E136923894AB5F01E331E97186B1976333B02729CFDB38C8F66558
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Windows security bypass 2 TTPs 6 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:\Users\Public\xhcdeb = "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:\Users = "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:\Users\Admin\Documents = "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 5952 powershell.exe - Executes dropped EXE 2 IoCs
pid Process 5776 caa8Bf.exe 2144 caa8Bf.exe - Loads dropped DLL 2 IoCs
pid Process 5776 caa8Bf.exe 2144 caa8Bf.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\\xhcdeb\\caa8Bf.exe\"" caa8Bf.exe - Indicator Removal: Clear Persistence 1 TTPs 5 IoCs
Clear artifacts associated with previously established persistence like scheduletasks on a host.
pid Process 3856 cmd.exe 6040 cmd.exe 2512 cmd.exe 2012 cmd.exe 1120 cmd.exe - Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\System32\CodeIntegrity\SiPolicy.p7b caa8Bf.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 3 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 1884 cmd.exe 4256 cmd.exe 1068 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 4596 schtasks.exe 2256 schtasks.exe 4636 schtasks.exe 6048 schtasks.exe 5352 schtasks.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 4716 appinst_up001.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe 5776 caa8Bf.exe - Suspicious behavior: LoadsDriver 7 IoCs
pid Process 812 Process not Found 812 Process not Found 812 Process not Found 812 Process not Found 812 Process not Found 812 Process not Found 812 Process not Found - Suspicious use of AdjustPrivilegeToken 22 IoCs
description pid Process Token: SeDebugPrivilege 5952 powershell.exe Token: SeIncreaseQuotaPrivilege 5952 powershell.exe Token: SeSecurityPrivilege 5952 powershell.exe Token: SeTakeOwnershipPrivilege 5952 powershell.exe Token: SeLoadDriverPrivilege 5952 powershell.exe Token: SeSystemProfilePrivilege 5952 powershell.exe Token: SeSystemtimePrivilege 5952 powershell.exe Token: SeProfSingleProcessPrivilege 5952 powershell.exe Token: SeIncBasePriorityPrivilege 5952 powershell.exe Token: SeCreatePagefilePrivilege 5952 powershell.exe Token: SeBackupPrivilege 5952 powershell.exe Token: SeRestorePrivilege 5952 powershell.exe Token: SeShutdownPrivilege 5952 powershell.exe Token: SeDebugPrivilege 5952 powershell.exe Token: SeSystemEnvironmentPrivilege 5952 powershell.exe Token: SeRemoteShutdownPrivilege 5952 powershell.exe Token: SeUndockPrivilege 5952 powershell.exe Token: SeManageVolumePrivilege 5952 powershell.exe Token: 33 5952 powershell.exe Token: 34 5952 powershell.exe Token: 35 5952 powershell.exe Token: 36 5952 powershell.exe - Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 5776 wrote to memory of 5952 5776 caa8Bf.exe 93 PID 5776 wrote to memory of 3856 5776 caa8Bf.exe 95 PID 3856 wrote to memory of 4596 3856 cmd.exe 98 PID 3856 wrote to memory of 4708 3856 cmd.exe 99 PID 5776 wrote to memory of 6040 5776 caa8Bf.exe 100 PID 5776 wrote to memory of 2512 5776 caa8Bf.exe 104 PID 3856 wrote to memory of 2452 3856 cmd.exe 106 PID 6040 wrote to memory of 2256 6040 cmd.exe 108 PID 2512 wrote to memory of 4636 2512 cmd.exe 109 PID 6040 wrote to memory of 2284 6040 cmd.exe 110 PID 5776 wrote to memory of 2012 5776 caa8Bf.exe 112 PID 2512 wrote to memory of 5980 2512 cmd.exe 114 PID 6040 wrote to memory of 4808 6040 cmd.exe 115 PID 2012 wrote to memory of 6048 2012 cmd.exe 116 PID 2512 wrote to memory of 1156 2512 cmd.exe 117 PID 2012 wrote to memory of 5896 2012 cmd.exe 118 PID 2012 wrote to memory of 4832 2012 cmd.exe 119 PID 5776 wrote to memory of 1120 5776 caa8Bf.exe 120 PID 1120 wrote to memory of 5352 1120 cmd.exe 122 PID 1120 wrote to memory of 2872 1120 cmd.exe 123 PID 1120 wrote to memory of 1376 1120 cmd.exe 127 PID 1884 wrote to memory of 2364 1884 cmd.exe 129 PID 1068 wrote to memory of 1260 1068 cmd.exe 130 PID 4256 wrote to memory of 3844 4256 cmd.exe 131 - 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_up001.exe"C:\Users\Admin\AppData\Local\Temp\appinst_up001.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
PID:4716
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵PID:3124
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C:\Users\Public\xhcdeb\caa8Bf.exe"C:\Users\Public\xhcdeb\caa8Bf.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:5776 -
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:5952
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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\xhcdeb\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F2⤵
- Indicator Removal: Clear Persistence
- Suspicious use of WriteProcessMemory
PID:3856 -
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\xhcdeb\" /t REG_DWORD /d 0 /f"3⤵
- Scheduled Task/Job: Scheduled Task
PID:4596
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C:\Windows\system32\schtasks.exeSCHTASKS /Run /TN "Task1"3⤵PID:4708
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C:\Windows\system32\schtasks.exeSCHTASKS /Delete /TN "Task1" /F3⤵PID:2452
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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:6040 -
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:2256
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C:\Windows\system32\schtasks.exeSCHTASKS /Run /TN "Task1"3⤵PID:2284
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C:\Windows\system32\schtasks.exeSCHTASKS /Delete /TN "Task1" /F3⤵PID:4808
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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:2512 -
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:4636
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C:\Windows\system32\schtasks.exeSCHTASKS /Run /TN "Task1"3⤵PID:5980
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C:\Windows\system32\schtasks.exeSCHTASKS /Delete /TN "Task1" /F3⤵PID:1156
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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:2012 -
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:6048
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C:\Windows\system32\schtasks.exeSCHTASKS /Run /TN "Task1"3⤵PID:5896
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C:\Windows\system32\schtasks.exeSCHTASKS /Delete /TN "Task1" /F3⤵PID:4832
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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:1120 -
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:5352
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C:\Windows\system32\schtasks.exeSCHTASKS /Run /TN "Task1"3⤵PID:2872
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C:\Windows\system32\schtasks.exeSCHTASKS /Delete /TN "Task1" /F3⤵PID:1376
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C:\Users\Public\xhcdeb\caa8Bf.exe"C:\Users\Public\xhcdeb\caa8Bf.exe"1⤵
- Executes dropped EXE
- Loads dropped DLL
PID:2144
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C:\Windows\system32\cmd.exe"cmd.exe" /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public\xhcdeb" /t REG_DWORD /d 0 /f1⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:4256 -
C:\Windows\System32\reg.exereg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public\xhcdeb" /t REG_DWORD /d 0 /f2⤵
- Windows security bypass
PID:3844
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C:\Windows\system32\cmd.execmd.exe1⤵PID:2280
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C:\Windows\system32\cmd.exe"cmd.exe" /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users" /t REG_DWORD /d 0 /f1⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:1068 -
C:\Windows\System32\reg.exereg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users" /t REG_DWORD /d 0 /f2⤵
- Windows security bypass
PID:1260
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C:\Windows\system32\cmd.exe"cmd.exe" /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Admin\Documents" /t REG_DWORD /d 0 /f1⤵
- Executes a command shell one-liner
- Suspicious use of WriteProcessMemory
PID:1884 -
C:\Windows\System32\reg.exereg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Admin\Documents" /t REG_DWORD /d 0 /f2⤵
- Windows security bypass
PID:2364
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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\xhcdeb\UxEnhance64.dll
- Size 3.1MB
- SHA256 fcc10c736bd5efea36f9e292283d9d41dde5cf18f3770d435489162e2228d8bc
- MD5 a752b8dd3806a5f7ce94120d18f0db76
- SHA1 8559869abb9765ee0124d4428f51cfa0e4c4f20d
- SHA512 315146bd6e5a953b9b9648906c1306fccf5a3cf935935b5650860b854a658167721bd540464e9d342a195a9fdd4b43a532b17315a2203cde29949acda101753a
- SSDEEP 49152:P9KpI8cBa0kj6BK0x3TiMQclkGo2PXk6rkwuuWG/+WizBedfb77N3SnKrKB+g:P9m29xx3Tiqt06ox6+z2rNNrKog
- TLSH T14EE523E5B6D739F6D023CBF4DA62A1AD70393F505F635C5F3B8929014E62228973A390
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Public\xhcdeb\adoresd.dat
- Size 4.7MB
- SHA256 e39e89e94e001bfd18e5288413ea6d44e6b108120b1def72a71b7c109008c74b
- MD5 eb972ea2b9e8dfe582b6149b8e2af20c
- SHA1 453e58691fea084edf1f20b607d7e50f31b9d083
- SHA512 73cd462dde351c9bbb182f84eddab4395d974e808eff29843e6f6726aaa93ee06382d151ccd249cea05a9e2f3122d3a6a5f1aeff12e71da3bb62cb447613374f
- SSDEEP 98304:Xmu1SwODpRGIRdXEMZYe6rFLoTTpMk6ZGvQv0Ss2i+XZXea1v5WZd8uCp:2u1SwOflfZPF6Ma0bsoa5+qd
- TLSH T1D83633368AE6F5C7E35B2A0AF36888DD12B0B7AD6E9D75C24AF070145DB30CE9015BC4
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Public\xhcdeb\caa8Bf.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\xhcdeb\msadox.tb
- Size 8KB
- SHA256 8036d5b2af08e87e609f4283e151eab593ed021865246577c7b9d76c45989d92
- MD5 a1a0179cee3fb9a2aa82caa75c3ff56b
- SHA1 6f6c2ab7776d3fc3f5af08cbd17bb6893c9c0298
- SHA512 608bc18b06bd2b8948caa8a595c84767e9c3adceb7eaf6c862338d25d4559f4d71a5984f4d258c7ff5cfd8b49f4651927569ca77922f7d8e6f390ccab7e7aba3
- SSDEEP 192:lqbZajnZ45X1q3JXglD+3vR8cwNhIMCGe2y0PQp:lsZqZOXQ3uqvR2Kfzp
- TLSH T103029E05D7A20CC3D6016C71CD9EB2F5AB13A1DADA3926719C67D4C167072DE2CE620D
- MD5 SHA1 SHA512 SSDEEP TLSH