Analysis
- max time kernel
148s - max time network
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
- submitted
02/07/2026, 03:59
General
- Target windownupdate.exe
- Size 3.1MB
- Sample260702-ej877abw7x
- SHA256 be220e0d2e31c303bb49ca9817e1319f2a6d9d32210af9022d1a1635a1e2d493
Malware Config
Extracted
-
quasar
-
1.4.1
-
www.lpc.uk.com
-
www.lpc.uk.com:4782
-
www.lpc.uk.com:8080
-
www.lpc.uk.com:80
-
www.lpc.uk.com:443
-
www.lpc.uk.com:8443
-
c5d2d708-e66f-4351-b915-e068af7ab273
-
encryption_key
7DB184117F5356211726F6C83149373E39585AB4
-
install_name
svchost.exe
-
key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
https://www.lpc.uk.com
-
subdirectory
SubDir
Signatures
- Family: Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Executes dropped EXE 2 IoCs
- Adds Run key to start application 2 TTPs 2 IoCs
- Drops file in System32 directory 5 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of WriteProcessMemory 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.
Processes
-
C:\Users\Admin\AppData\Local\Temp\windownupdate.exe"C:\Users\Admin\AppData\Local\Temp\windownupdate.exe"1⤵
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "https://www.lpc.uk.com" /sc ONLOGON /tr "C:\Windows\system32\SubDir\svchost.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Windows\system32\SubDir\svchost.exe"C:\Windows\system32\SubDir\svchost.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
-
C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "https://www.lpc.uk.com" /sc ONLOGON /tr "C:\Windows\system32\SubDir\svchost.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
-
-
-
C:\Windows\system32\SubDir\svchost.exeC:\Windows\system32\SubDir\svchost.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\system32\sihost.exesihost.exe1⤵
-
C:\Windows\explorer.exeexplorer.exe /LOADSAVEDWINDOWS2⤵
-
-
C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca1⤵
-
C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
prep_Activatable Class_Hermes_perf.cache
prep_Activatable Class_Hermes_perf.cache
svchost.exe
memory/2588-7-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2588-10-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2588-5-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2588-6-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2588-8-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2588-0-0x00007FFC8331F000-0x00007FFC83320000-memory.dmp
memory/2588-9-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2588-4-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2588-11-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2588-12-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2588-13-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2588-14-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2588-3-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2588-2-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2588-1-0x0000000000A20000-0x0000000000D44000-memory.dmp
memory/2588-23-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2804-21-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2804-31-0x000000001F100000-0x000000001F150000-memory.dmp
memory/2804-19-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2804-18-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2804-24-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2804-25-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2804-22-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2804-26-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2804-27-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2804-28-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2804-29-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2804-20-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2804-32-0x000000001F210000-0x000000001F2C2000-memory.dmp
memory/2804-33-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2804-17-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/2804-16-0x00007FFC83190000-0x00007FFC83B34000-memory.dmp
memory/3908-98-0x0000025E94250000-0x0000025E94270000-memory.dmp
memory/3908-76-0x0000025E83D70000-0x0000025E83D90000-memory.dmp
memory/3908-66-0x0000025E93E90000-0x0000025E93F90000-memory.dmp
memory/3908-53-0x0000025E801E0000-0x0000025E802E0000-memory.dmp
memory/3908-64-0x0000025E83930000-0x0000025E83950000-memory.dmp
memory/3908-52-0x0000025E801E0000-0x0000025E802E0000-memory.dmp
memory/3908-54-0x0000025E801E0000-0x0000025E802E0000-memory.dmp
memory/4980-226-0x000000000EA60000-0x000000000EBCC000-memory.dmp