General
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Target
GSClient_Setup_CS_1_6.exe
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Size
263.1MB
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Sample
240813-vhmwkavgrd
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MD5
c7067a7d7a096da7f12c5b0577ce1eda
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SHA1
1c989db53e9a3e6c38e4a4d44a8dd572f6a31e5d
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SHA256
9cc115b0e4a690b1d82a0e4ada34defb19c1bd246a45ba56295a3fbde0abe158
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SHA512
f64b6f53386abd4455d9df2db49ecf980f9358c3ad0b79cc553e66404421d98f23d28272c2275362ad95fe84b0ef6389be0dcff575f8497bcb63feb3bf0b5823
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SSDEEP
6291456:7UMXs+AiZ+VZXO+R/juaKFG3CX6whYIHxZJPN7kkI8u:QCGzO+R7wG3CKwhpxNIRL
Static task
static1
Behavioral task
behavioral1
Sample
GSClient_Setup_CS_1_6.exe
Resource
win7-20240704-en
Behavioral task
behavioral2
Sample
GSClient_Setup_CS_1_6.exe
Resource
win10v2004-20240802-en
Malware Config
Targets
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Target
GSClient_Setup_CS_1_6.exe
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Size
263.1MB
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MD5
c7067a7d7a096da7f12c5b0577ce1eda
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SHA1
1c989db53e9a3e6c38e4a4d44a8dd572f6a31e5d
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SHA256
9cc115b0e4a690b1d82a0e4ada34defb19c1bd246a45ba56295a3fbde0abe158
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SHA512
f64b6f53386abd4455d9df2db49ecf980f9358c3ad0b79cc553e66404421d98f23d28272c2275362ad95fe84b0ef6389be0dcff575f8497bcb63feb3bf0b5823
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SSDEEP
6291456:7UMXs+AiZ+VZXO+R/juaKFG3CX6whYIHxZJPN7kkI8u:QCGzO+R7wG3CKwhpxNIRL
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Modifies Windows Firewall
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Loads dropped DLL
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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.
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MITRE ATT&CK Enterprise v15
Persistence
Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Create or Modify System Process
1Windows Service
1Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Impair Defenses
1Disable or Modify System Firewall
1Pre-OS Boot
1Bootkit
1