Analysis
- max time kernel
149s - max time network
126s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
13/09/2026, 00:19
General
- Target stage2.exe
- Size 159KB
- Sample260913-amnnface94
- SHA256 e5fc0f0dfb59c74becbf397bbee196828e3750d9ea99cfb524f60bc4dd65deaa
Malware Config
Signatures
- Creates a file in the Startup directory 1 TTPs 1 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
- Executes dropped EXE 2 IoCs
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- UPX packed file 6 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Drops file in Program Files directory 4 IoCs
- Browser Information Discovery 1 TTPs
Enumerate browser information.
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Using powershell.exe command.
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 34 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
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C:\Windows\explorer.exeexplorer.exe /LOADSAVEDWINDOWS1⤵
- Drops file in Program Files directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\stage2.exe"C:\Users\Admin\AppData\Local\Temp\stage2.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\Windows Helper.exe"C:\Users\Admin\AppData\Local\Temp\Windows Helper.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -NoProfile -NonInteractive -Command "$ErrorActionPreference='Stop'; $shell = New-Object -ComObject WScript.Shell; $shortcut = $shell.CreateShortcut('C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Helper.lnk'); $shortcut.TargetPath='C:\Users\Admin\AppData\Local\Temp\Windows Helper.exe'; $shortcut.WorkingDirectory='C:\Users\Admin\AppData\Local\Temp'; $shortcut.Description='Windows Helper'; $shortcut.WindowStyle=1; $shortcut.Save();"4⤵
- Creates a file in the Startup directory
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\Screendrive.exeC:\Users\Admin\AppData\Local\Temp\Screendrive.exe3⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
Screendrive[1].enc
Screendrive.exe
Windows Helper.exe
encrypted_Windows_Helper_exe.dat
memory/1780-30-0x00007FF7D45E0000-0x00007FF7D4610000-memory.dmp
memory/3948-75-0x00007FF78E090000-0x00007FF78F63D000-memory.dmp
memory/3948-73-0x00007FF78E090000-0x00007FF78F63D000-memory.dmp
memory/3948-31-0x00007FF78E090000-0x00007FF78F63D000-memory.dmp
memory/3948-62-0x00007FF78E090000-0x00007FF78F63D000-memory.dmp
memory/3948-59-0x00007FF78E090000-0x00007FF78F63D000-memory.dmp
memory/3948-57-0x000002A6803C0000-0x000002A6803D0000-memory.dmp
memory/4604-70-0x00000210B81D0000-0x00000210B81F2000-memory.dmp
memory/4624-41-0x00000000038D0000-0x0000000003943000-memory.dmp
memory/4624-33-0x00000000038D0000-0x0000000003943000-memory.dmp
memory/4624-42-0x00000000038D0000-0x0000000003943000-memory.dmp
memory/4624-49-0x00000000038D0000-0x0000000003943000-memory.dmp
memory/4624-44-0x00000000038D0000-0x0000000003943000-memory.dmp
memory/4624-37-0x00000000038D0000-0x0000000003943000-memory.dmp
memory/4624-54-0x00000000038D0000-0x0000000003943000-memory.dmp
memory/4624-53-0x00000000038D0000-0x0000000003943000-memory.dmp
memory/4624-51-0x00000000038D0000-0x0000000003943000-memory.dmp
memory/4624-50-0x00000000038D0000-0x0000000003943000-memory.dmp
memory/4624-38-0x00000000038D0000-0x0000000003943000-memory.dmp
memory/4624-45-0x00000000038D0000-0x0000000003943000-memory.dmp
memory/4624-36-0x00000000038D0000-0x0000000003943000-memory.dmp
memory/4624-35-0x00000000038D0000-0x0000000003943000-memory.dmp
memory/4624-34-0x00000000038D0000-0x0000000003943000-memory.dmp
memory/4624-56-0x00000000038D0000-0x0000000003943000-memory.dmp
memory/4624-47-0x00000000038D0000-0x0000000003943000-memory.dmp
memory/4624-46-0x00000000038D0000-0x0000000003943000-memory.dmp
memory/4624-39-0x00000000038D0000-0x0000000003943000-memory.dmp
memory/4624-27-0x00000000038D0000-0x0000000003943000-memory.dmp
memory/4624-32-0x00000000038D0000-0x0000000003943000-memory.dmp
memory/4624-28-0x00000000038D0000-0x0000000003943000-memory.dmp