Analysis
- max time kernel
299s - max time network
299s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-fr - resource tags
- submitted
08/08/2026, 20:30
General
- Target VesperaRebrandPC.exe
- Size 1.5MB
- Sample260808-zahn4afd44
- SHA256 cff5f37b6a91feb87eb16dd0cdd25fe426e171dbe84386a8d89e6db7a20e6fbd
Malware Config
Signatures
- Sets desktop wallpaper using registry 2 TTPs 2 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Using powershell.exe command.
- Modifies Control Panel 24 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
- System policy modification 1 TTPs 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\VesperaRebrandPC.exe"C:\Users\Admin\AppData\Local\Temp\VesperaRebrandPC.exe"1⤵
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Suspicious use of WriteProcessMemory
- System policy modification
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -NoProfile -ExecutionPolicy Bypass -Command "$imagePath = 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\user_avatar_custom.png'; if (Test-Path $imagePath) { $accFolder = [System.IO.Path]::Combine($env:APPDATA, 'Microsoft\Windows\AccountPictures'); New-Item -ItemType Directory -Force -Path $accFolder | Out-Null; Copy-Item $imagePath (Join-Path $accFolder 'user.png') -Force; }"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
dark_arrow.cur
dark_cross.cur
dark_hand.cur
dark_no.cur
user_avatar.png
memory/3516-55-0x00007FFF9A370000-0x00007FFF9AD14000-memory.dmp
memory/3516-58-0x00007FFF9A370000-0x00007FFF9AD14000-memory.dmp
memory/3516-48-0x00007FFF9A370000-0x00007FFF9AD14000-memory.dmp
memory/3516-50-0x00007FFF9A370000-0x00007FFF9AD14000-memory.dmp
memory/3516-52-0x000001E511210000-0x000001E511232000-memory.dmp
memory/3516-47-0x00007FFF9A4FF000-0x00007FFF9A500000-memory.dmp
memory/3516-56-0x00007FFF9A370000-0x00007FFF9AD14000-memory.dmp
memory/3516-57-0x00007FFF9A370000-0x00007FFF9AD14000-memory.dmp
memory/3516-54-0x000001E510E30000-0x000001E510E40000-memory.dmp
memory/3516-49-0x000001E529430000-0x000001E5294BA000-memory.dmp
memory/3516-59-0x000001E5296E0000-0x000001E5297E2000-memory.dmp
memory/3516-60-0x00007FFF9A370000-0x00007FFF9AD14000-memory.dmp
memory/3516-61-0x00007FFF9A370000-0x00007FFF9AD14000-memory.dmp
memory/3516-62-0x00007FFF9A370000-0x00007FFF9AD14000-memory.dmp
memory/3516-63-0x00007FFF9A370000-0x00007FFF9AD14000-memory.dmp
memory/3516-64-0x00007FFF9A370000-0x00007FFF9AD14000-memory.dmp
memory/3516-65-0x00007FFF9A370000-0x00007FFF9AD14000-memory.dmp
memory/3516-67-0x00007FFF9A370000-0x00007FFF9AD14000-memory.dmp