Analysis
- max time kernel
20s - max time network
147s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260706-en - resource tags
- submitted
08/07/2026, 10:36
General
- Target Pulsar-Client.exe
- Size 955KB
- Sample260708-mnczjsft8n
- SHA256 385140f47abc7090c4f642c3c592db679151aeb5bfcdadbc2e8f408c1ca8a5dd
Malware Config
Extracted
-
quasar
-
encryption_key
08503D339FB564A680CD68FD0A27B3C0CCA5A625
-
key_salt
5a23f8394640cb9e40658446a04c0bbae82dc93d0470e1b2a406a90fd2520382
-
reconnect_delay
3000
Signatures
- Family: Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 1 IoCs
- Boot or Logon Autostart Execution: Active Setup 2 TTPs 1 IoCs
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
- Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Checks SCSI registry key(s) 3 TTPs 46 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Modifies Internet Explorer settings 1 TTPs 1 IoCs
- Modifies registry class 16 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 19 IoCs
- Suspicious use of FindShellTrayWindow 16 IoCs
- Suspicious use of SendNotifyMessage 5 IoCs
- Suspicious use of SetWindowsHookEx 3 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Pulsar-Client.exe"C:\Users\Admin\AppData\Local\Temp\Pulsar-Client.exe"1⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
C:\Windows\system32\sihost.exesihost.exe1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Windows\explorer.exeexplorer.exe /LOADSAVEDWINDOWS2⤵
- Boot or Logon Autostart Execution: Active Setup
- Enumerates connected drives
- Checks SCSI registry key(s)
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
-
-
C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
-
C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
prep_Activatable Class_Hermes_perf.cache
memory/5572-79-0x0000020B801F0000-0x0000020B802F0000-memory.dmp
memory/5572-125-0x000002139DD00000-0x000002139DD20000-memory.dmp
memory/5572-95-0x000002139D880000-0x000002139D980000-memory.dmp
memory/5572-110-0x000002138D800000-0x000002138D820000-memory.dmp
memory/5572-243-0x0000020B87010000-0x0000020B874F8000-memory.dmp
memory/5572-78-0x0000020B801F0000-0x0000020B802F0000-memory.dmp
memory/5572-94-0x000002138D420000-0x000002138D440000-memory.dmp
memory/5808-21-0x0000016E208E0000-0x0000016E20942000-memory.dmp
memory/5808-24-0x0000016E208C0000-0x0000016E208CA000-memory.dmp
memory/5808-5-0x00007FFF85270000-0x00007FFF85C14000-memory.dmp
memory/5808-6-0x00007FFF85270000-0x00007FFF85C14000-memory.dmp
memory/5808-7-0x00007FFF85270000-0x00007FFF85C14000-memory.dmp
memory/5808-8-0x00007FFF85270000-0x00007FFF85C14000-memory.dmp
memory/5808-9-0x00007FFF85270000-0x00007FFF85C14000-memory.dmp
memory/5808-10-0x00007FFF85270000-0x00007FFF85C14000-memory.dmp
memory/5808-11-0x00007FFF85270000-0x00007FFF85C14000-memory.dmp
memory/5808-12-0x00007FFF85270000-0x00007FFF85C14000-memory.dmp
memory/5808-13-0x00007FFF85270000-0x00007FFF85C14000-memory.dmp
memory/5808-14-0x00007FFF85270000-0x00007FFF85C14000-memory.dmp
memory/5808-16-0x0000016E081B0000-0x0000016E081EC000-memory.dmp
memory/5808-15-0x0000016E08150000-0x0000016E08162000-memory.dmp
memory/5808-17-0x00007FFF85270000-0x00007FFF85C14000-memory.dmp
memory/5808-18-0x0000016E08170000-0x0000016E0817A000-memory.dmp
memory/5808-19-0x0000016E08180000-0x0000016E081A6000-memory.dmp
memory/5808-20-0x0000016E208D0000-0x0000016E208D8000-memory.dmp
memory/5808-3-0x0000016E066C0000-0x0000016E066F4000-memory.dmp
memory/5808-22-0x0000016E20950000-0x0000016E20992000-memory.dmp
memory/5808-23-0x0000016E08130000-0x0000016E0813A000-memory.dmp
memory/5808-4-0x00007FFF85270000-0x00007FFF85C14000-memory.dmp
memory/5808-25-0x0000016E209C0000-0x0000016E209DA000-memory.dmp
memory/5808-26-0x0000016E218B0000-0x0000016E218D2000-memory.dmp
memory/5808-35-0x0000016E20940000-0x0000016E20952000-memory.dmp
memory/5808-42-0x0000016E218E0000-0x0000016E2192A000-memory.dmp
memory/5808-46-0x0000016E20990000-0x0000016E209A4000-memory.dmp
memory/5808-45-0x0000016E209E0000-0x0000016E20A0A000-memory.dmp
memory/5808-44-0x0000016E21980000-0x0000016E21A00000-memory.dmp
memory/5808-43-0x0000016E21930000-0x0000016E2197C000-memory.dmp
memory/5808-47-0x0000016E21A00000-0x0000016E21A3A000-memory.dmp
memory/5808-54-0x0000016E218A0000-0x0000016E218B4000-memory.dmp
memory/5808-53-0x0000016E21890000-0x0000016E218A0000-memory.dmp
memory/5808-52-0x0000016E21AB0000-0x0000016E21AE2000-memory.dmp
memory/5808-51-0x0000016E21A80000-0x0000016E21AB4000-memory.dmp
memory/5808-50-0x0000016E21880000-0x0000016E21896000-memory.dmp
memory/5808-49-0x0000016E20A10000-0x0000016E20A1C000-memory.dmp
memory/5808-48-0x0000016E209A0000-0x0000016E209AA000-memory.dmp
memory/5808-55-0x00007FFF85270000-0x00007FFF85C14000-memory.dmp
memory/5808-2-0x00007FFF85270000-0x00007FFF85C14000-memory.dmp
memory/5808-1-0x0000016E06150000-0x0000016E06244000-memory.dmp
memory/5808-0-0x00007FFF853FF000-0x00007FFF85400000-memory.dmp
memory/5808-57-0x00007FFF85270000-0x00007FFF85C14000-memory.dmp
memory/5808-119-0x00007FFF85270000-0x00007FFF85C14000-memory.dmp