Analysis
- max time kernel
150s - max time network
155s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260629-en - resource tags
- submitted
06/07/2026, 00:14
General
- Target qrj3292.exe
- Size 3.4MB
- Sample260706-ajtehsct8q
- SHA256 1066003052bf79de8ab4f07bb7ff3dc980a8622b9175ef714a6df5dd01d517b7
Malware Config
Extracted
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quasar
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1.4.1
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Office04
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62.60.226.185:6003
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4b633808-0fa3-4ed7-889c-40069c4990ed
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encryption_key
B85AB05112C6848CCF2DD6889903E1268CDC6A75
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install_name
Client.exe
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key_salt
bfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
-
subdirectory
SubDir
Signatures
- Family: Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Executes dropped EXE 2 IoCs
- 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 WriteProcessMemory 2 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
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C:\Users\Admin\AppData\Local\Temp\qrj3292.exe"C:\Users\Admin\AppData\Local\Temp\qrj3292.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
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C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
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C:\Users\Admin\AppData\Roaming\SubDir\Client.exeC:\Users\Admin\AppData\Roaming\SubDir\Client.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\sihost.exesihost.exe1⤵
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C:\Windows\explorer.exeexplorer.exe /LOADSAVEDWINDOWS2⤵
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C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\SearchHost.exe" -ServerName:CortanaUI.AppXstmwaab17q5s3y22tp6apqz7a45vwv65.mca1⤵
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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
Replay Monitor
Loading Replay Monitor...
Downloads
prep_Activatable Class_Hermes_perf.cache
Client.exe
memory/2356-24-0x00007FFAB4120000-0x00007FFAB4AC4000-memory.dmp
memory/2356-19-0x00007FFAB4120000-0x00007FFAB4AC4000-memory.dmp
memory/2356-182-0x00007FFAB4120000-0x00007FFAB4AC4000-memory.dmp
memory/2356-27-0x000000001D340000-0x000000001D3F2000-memory.dmp
memory/2356-26-0x000000001D230000-0x000000001D280000-memory.dmp
memory/2356-23-0x00007FFAB4120000-0x00007FFAB4AC4000-memory.dmp
memory/2356-22-0x00007FFAB4120000-0x00007FFAB4AC4000-memory.dmp
memory/2356-20-0x00007FFAB4120000-0x00007FFAB4AC4000-memory.dmp
memory/2356-18-0x00007FFAB4120000-0x00007FFAB4AC4000-memory.dmp
memory/2356-17-0x00007FFAB4120000-0x00007FFAB4AC4000-memory.dmp
memory/2356-16-0x00007FFAB4120000-0x00007FFAB4AC4000-memory.dmp
memory/2920-46-0x00000251801E0000-0x00000251802E0000-memory.dmp
memory/2920-67-0x0000025183E70000-0x0000025183E90000-memory.dmp
memory/2920-60-0x0000025193EF0000-0x0000025193FF0000-memory.dmp
memory/2920-94-0x00000251942D0000-0x00000251942F0000-memory.dmp
memory/2920-59-0x0000025183910000-0x0000025183930000-memory.dmp
memory/3316-9-0x00007FFAB4120000-0x00007FFAB4AC4000-memory.dmp
memory/3316-6-0x00007FFAB4120000-0x00007FFAB4AC4000-memory.dmp
memory/3316-10-0x00007FFAB4120000-0x00007FFAB4AC4000-memory.dmp
memory/3316-0-0x00007FFAB42AF000-0x00007FFAB42B0000-memory.dmp
memory/3316-13-0x00007FFAB4120000-0x00007FFAB4AC4000-memory.dmp
memory/3316-7-0x00007FFAB4120000-0x00007FFAB4AC4000-memory.dmp
memory/3316-21-0x00007FFAB4120000-0x00007FFAB4AC4000-memory.dmp
memory/3316-11-0x00007FFAB4120000-0x00007FFAB4AC4000-memory.dmp
memory/3316-5-0x00007FFAB4120000-0x00007FFAB4AC4000-memory.dmp
memory/3316-1-0x0000000000250000-0x00000000005C0000-memory.dmp
memory/3316-8-0x00007FFAB4120000-0x00007FFAB4AC4000-memory.dmp
memory/3316-12-0x00007FFAB4120000-0x00007FFAB4AC4000-memory.dmp
memory/3316-3-0x00007FFAB4120000-0x00007FFAB4AC4000-memory.dmp
memory/3316-2-0x00007FFAB4120000-0x00007FFAB4AC4000-memory.dmp
memory/3316-14-0x00007FFAB4120000-0x00007FFAB4AC4000-memory.dmp
memory/3316-4-0x00007FFAB4120000-0x00007FFAB4AC4000-memory.dmp