Resubmissions
04/11/2026, 22:13
261104-143f2avxcw503/11/2026, 22:31
261103-2fn46swxgv530/09/2026, 20:28
260930-y876zawalc6Analysis
- user interaction
yes - max time kernel
57s - max time network
512s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-fr - resource tags
- submitted
04/11/2026, 22:13
General
- Target VesperaRebrandPC.exe
- Size 1.5MB
- Sample261104-143f2avxcw
- 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
- Runs regedit.exe 2 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
- 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.
- Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
- Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
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\regedit.exe"C:\Windows\regedit.exe"1⤵
- Runs regedit.exe
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k LocalService -p -s NPSMSvc1⤵
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵
-
C:\Windows\regedit.exe"C:\Windows\regedit.exe"1⤵
- Runs regedit.exe
-
C:\Windows\system32\SystemSettingsAdminFlows.exe"C:\Windows\system32\SystemSettingsAdminFlows.exe" RenamePC1⤵
-
C:\Windows\System32\SecurityHealthHost.exe\\?\C:\Windows\System32\SecurityHealthHost.exe {08728914-3F57-4D52-9E31-49DAECA5A80A} -Embedding1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
dark_arrow.cur
dark_cross.cur
dark_hand.cur
dark_wait.cur
user_avatar.png
memory/2108-51-0x00007FFBF5630000-0x00007FFBF5FD4000-memory.dmp
memory/2108-48-0x00007FFBF5630000-0x00007FFBF5FD4000-memory.dmp
memory/2108-49-0x00007FFBF5630000-0x00007FFBF5FD4000-memory.dmp
memory/2108-47-0x00007FFBF57BF000-0x00007FFBF57C0000-memory.dmp
memory/2108-50-0x000001B060610000-0x000001B06069A000-memory.dmp
memory/2108-54-0x000001B060530000-0x000001B060552000-memory.dmp
memory/2108-55-0x000001B060520000-0x000001B060530000-memory.dmp
memory/2108-57-0x00007FFBF5630000-0x00007FFBF5FD4000-memory.dmp
memory/2108-56-0x000001B0607B0000-0x000001B0608B2000-memory.dmp
memory/2108-58-0x00007FFBF5630000-0x00007FFBF5FD4000-memory.dmp
memory/2108-59-0x00007FFBF5630000-0x00007FFBF5FD4000-memory.dmp
memory/2108-62-0x00007FFBF5630000-0x00007FFBF5FD4000-memory.dmp
memory/2108-61-0x00007FFBF5630000-0x00007FFBF5FD4000-memory.dmp