Analysis
- max time kernel
32s - max time network
146s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260706-en - resource tags
- submitted
08/07/2026, 18:05
General
- Target yanhh3d.exe
- Size 3.1MB
- Sample260708-wpgtkad19l
- SHA256 e3a5b3ac1e634bccd338c55b0b7f14ac97604800ce02e6ae8618f770ef990eae
Malware Config
Extracted
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quasar
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1.4.1
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yanhh3d
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172.67.161.129:4782
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yanhh3d.ee:4782
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104.21.66.157:4782
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104.21.66.157:443
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yanhh3d.ee:443
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172.67.161.129:443
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bab58c9b-1138-4a66-89ea-095d3b87264d
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encryption_key
FAA6DCCCB5AA917EA4E50E1D9897AB35BE84AF27
-
install_name
yanhh3d.exe
-
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
- 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.
- Executes dropped EXE 1 IoCs
- Modifies registry class 7 IoCs
- Suspicious use of AdjustPrivilegeToken 10 IoCs
- Suspicious use of FindShellTrayWindow 3 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\yanhh3d.exe"C:\Users\Admin\AppData\Local\Temp\yanhh3d.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\SubDir\yanhh3d.exe"C:\Users\Admin\AppData\Roaming\SubDir\yanhh3d.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
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C:\Windows\system32\sihost.exesihost.exe1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
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C:\Windows\explorer.exeexplorer.exe /LOADSAVEDWINDOWS2⤵
- Boot or Logon Autostart Execution: Active Setup
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
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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⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
prep_Activatable Class_Hermes_perf.cache
yanhh3d.exe
memory/1696-86-0x0000010B03C80000-0x0000010B03CA0000-memory.dmp
memory/1696-79-0x0000010B03A20000-0x0000010B03A40000-memory.dmp
memory/1696-80-0x0000010B03E40000-0x0000010B03F40000-memory.dmp
memory/1696-100-0x0000010B14340000-0x0000010B14360000-memory.dmp
memory/1696-55-0x0000010B001E0000-0x0000010B002E0000-memory.dmp
memory/1988-216-0x000000000A4D0000-0x000000000A65E000-memory.dmp
memory/4308-30-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4308-26-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4308-33-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4308-32-0x000000001C720000-0x000000001C7D2000-memory.dmp
memory/4308-31-0x00000000028E0000-0x0000000002930000-memory.dmp
memory/4308-29-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4308-28-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4308-27-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4308-16-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4308-17-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4308-18-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4308-19-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4308-20-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4308-21-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4308-22-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4308-23-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4308-25-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4968-10-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4968-7-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4968-24-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4968-14-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4968-13-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4968-1-0x0000000000CE0000-0x0000000001004000-memory.dmp
memory/4968-8-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4968-12-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4968-9-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4968-11-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4968-5-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4968-6-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4968-3-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4968-4-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4968-2-0x00007FFC68DA0000-0x00007FFC69744000-memory.dmp
memory/4968-0-0x00007FFC68F2F000-0x00007FFC68F30000-memory.dmp