Analysis
- max time kernel
149s - max time network
149s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260706-en - resource tags
- submitted
09/07/2026, 14:48
General
- Target nexusguard-firewall-enterprise-2026.07-full-x64.exe
- Size 3.1MB
- Sample260709-r6ptaact9j
- SHA256 e521863afda5337416c8d66427b1e54437a2d07603a6e491a75d4678252f96b0
Malware Config
Extracted
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quasar
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1.4.1
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NexusGuard Firewall
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gamefest.gg:4782
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gamefest.gg/vi-vn/:4782
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c168.media:4782
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olympicharyana.in/vi-vn/:4782
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olympicharyana.in:4782
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c168b.com:4782
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f0eadb08-af86-4368-b0dd-8c5aa7080499
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encryption_key
FAA6DCCCB5AA917EA4E50E1D9897AB35BE84AF27
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install_name
nexusguard-firewall-enterprise-2026.07-full-x64.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
NexusGuard Firewall
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subdirectory
NexusGuard Firewall
Signatures
- Family: Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 2 IoCs
- Executes dropped EXE 1 IoCs
- System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 3 IoCs
Adversaries may check for Internet connectivity on compromised systems.
- Runs ping.exe 1 TTPs 3 IoCs
- Scheduled Task/Job: Scheduled Task 1 TTPs 5 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of AdjustPrivilegeToken 2 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\nexusguard-firewall-enterprise-2026.07-full-x64.exe"C:\Users\Admin\AppData\Local\Temp\nexusguard-firewall-enterprise-2026.07-full-x64.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "NexusGuard Firewall" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\NexusGuard Firewall\nexusguard-firewall-enterprise-2026.07-full-x64.exe" /rl HIGHEST /f2⤵
- Scheduled Task/Job: Scheduled Task
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C:\Users\Admin\AppData\Roaming\NexusGuard Firewall\nexusguard-firewall-enterprise-2026.07-full-x64.exe"C:\Users\Admin\AppData\Roaming\NexusGuard Firewall\nexusguard-firewall-enterprise-2026.07-full-x64.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "NexusGuard Firewall" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\NexusGuard Firewall\nexusguard-firewall-enterprise-2026.07-full-x64.exe" /rl HIGHEST /f3⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\AbzXuvOJlLtw.bat" "3⤵
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C:\Windows\system32\chcp.comchcp 650014⤵
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C:\Windows\system32\PING.EXEping -n 10 localhost4⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
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C:\Users\Admin\AppData\Roaming\NexusGuard Firewall\nexusguard-firewall-enterprise-2026.07-full-x64.exe"C:\Users\Admin\AppData\Roaming\NexusGuard Firewall\nexusguard-firewall-enterprise-2026.07-full-x64.exe"4⤵
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "NexusGuard Firewall" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\NexusGuard Firewall\nexusguard-firewall-enterprise-2026.07-full-x64.exe" /rl HIGHEST /f5⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\21e04BCtDNOA.bat" "5⤵
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C:\Windows\system32\chcp.comchcp 650016⤵
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C:\Windows\system32\PING.EXEping -n 10 localhost6⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
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C:\Users\Admin\AppData\Roaming\NexusGuard Firewall\nexusguard-firewall-enterprise-2026.07-full-x64.exe"C:\Users\Admin\AppData\Roaming\NexusGuard Firewall\nexusguard-firewall-enterprise-2026.07-full-x64.exe"6⤵
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "NexusGuard Firewall" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\NexusGuard Firewall\nexusguard-firewall-enterprise-2026.07-full-x64.exe" /rl HIGHEST /f7⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\U36lNM4aQh4J.bat" "7⤵
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C:\Windows\system32\chcp.comchcp 650018⤵
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C:\Windows\system32\PING.EXEping -n 10 localhost8⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
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C:\Users\Admin\AppData\Roaming\NexusGuard Firewall\nexusguard-firewall-enterprise-2026.07-full-x64.exe"C:\Users\Admin\AppData\Roaming\NexusGuard Firewall\nexusguard-firewall-enterprise-2026.07-full-x64.exe"8⤵
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C:\Windows\SYSTEM32\schtasks.exe"schtasks" /create /tn "NexusGuard Firewall" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\NexusGuard Firewall\nexusguard-firewall-enterprise-2026.07-full-x64.exe" /rl HIGHEST /f9⤵
- Scheduled Task/Job: Scheduled Task
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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\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
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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⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
prep_Activatable Class_Hermes_perf.cache
21e04BCtDNOA.bat
AbzXuvOJlLtw.bat
U36lNM4aQh4J.bat
nexusguard-firewall-enterprise-2026.07-full-x64.exe
memory/2908-241-0x000002087E470000-0x000002087EB01000-memory.dmp
memory/2908-217-0x000002087E470000-0x000002087EB01000-memory.dmp
memory/4016-64-0x000001BE83C30000-0x000001BE83D30000-memory.dmp
memory/4016-101-0x000001BE94480000-0x000001BE944A0000-memory.dmp
memory/4016-87-0x000001BE83A70000-0x000001BE83A90000-memory.dmp
memory/4016-62-0x000001BE83720000-0x000001BE83740000-memory.dmp
memory/4016-55-0x000001BE80020000-0x000001BE80120000-memory.dmp
memory/4028-22-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4028-29-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4028-225-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4028-15-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4028-16-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4028-17-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4028-18-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4028-19-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4028-20-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4028-21-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4028-216-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4028-31-0x000000001C790000-0x000000001C842000-memory.dmp
memory/4028-23-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4028-25-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4028-26-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4028-28-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4028-27-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4028-30-0x000000001C680000-0x000000001C6D0000-memory.dmp
memory/4400-7-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4400-4-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4400-11-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4400-10-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4400-9-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4400-8-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4400-24-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4400-0-0x00007FFBB55DF000-0x00007FFBB55E0000-memory.dmp
memory/4400-13-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4400-5-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4400-6-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4400-12-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4400-3-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4400-2-0x00007FFBB5450000-0x00007FFBB5DF4000-memory.dmp
memory/4400-1-0x00000000005E0000-0x0000000000904000-memory.dmp