General
- Target GSClient_Setup.exe
- Size 261.9MB
- Sample260630-va1gpadt2s
- SHA256 3959bd5ef4923a1c34a2657aa35d10cb575def2f07b2736120fa8bd21c0cdd95
- MD5 fc2370bd0afae9ba238e98b40b229710
- SHA1 445b10fdada9325cd697c6da4ab5fa48f897439e
- SHA512 f03961c8fccc7d65619246f7515e53ba11a3c00143ca3b9d5eaba577893fb83402583d7ebe17807869091d2967cb16542fbdd0bdcc91be5791e07c9b072ddd68
- SSDEEP 6291456:zUMXs+UOZ+VZXO+R/juaKFf3CX6whYIHxZJPN7kkI8o:oCmzO+R7wf3CKwhpxNIRr
- TLSH T1BDD83342610580F4E9B0063415287E853EDF7B39FCF560A37D7CE68EA97633A8A7E641
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
GSClient_Setup.exe
Resource
win10v2004-20260513-en
Malware Config
Targets
-
- Target GSClient_Setup.exe
- Size 261.9MB
- SHA256 3959bd5ef4923a1c34a2657aa35d10cb575def2f07b2736120fa8bd21c0cdd95
- MD5 fc2370bd0afae9ba238e98b40b229710
- SHA1 445b10fdada9325cd697c6da4ab5fa48f897439e
- SHA512 f03961c8fccc7d65619246f7515e53ba11a3c00143ca3b9d5eaba577893fb83402583d7ebe17807869091d2967cb16542fbdd0bdcc91be5791e07c9b072ddd68
- SSDEEP 6291456:zUMXs+UOZ+VZXO+R/juaKFf3CX6whYIHxZJPN7kkI8o:oCmzO+R7wf3CKwhpxNIRr
- TLSH T1BDD83342610580F4E9B0063415287E853EDF7B39FCF560A37D7CE68EA97633A8A7E641
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Downloads MZ/PE file
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Modifies Windows Firewall
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
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Executes dropped EXE
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Loads dropped DLL
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
2Component Object Model Hijacking
1Netsh Helper DLL
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Event Triggered Execution
2Component Object Model Hijacking
1Netsh Helper DLL
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Modify Registry
3Pre-OS Boot
1Bootkit
1Subvert Trust Controls
1Install Root Certificate
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1