Analysis
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max time kernel
150s -
max time network
124s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
19/03/2024, 22:17
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
89d3f41c1268adc609b010f78296447dc8d6540f520baf35d50d1687b509e9cd.exe
Resource
win7-20240221-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
89d3f41c1268adc609b010f78296447dc8d6540f520baf35d50d1687b509e9cd.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
89d3f41c1268adc609b010f78296447dc8d6540f520baf35d50d1687b509e9cd.exe
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Size
236KB
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MD5
d81608c915ed0945af57683e4f1fa42a
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SHA1
3c4fb1be950b71bd274eb2e8e8407b63ce268989
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SHA256
89d3f41c1268adc609b010f78296447dc8d6540f520baf35d50d1687b509e9cd
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SHA512
321ef077d644fa226ecc5159a6888f87d83439cdeed296eb5e7e3183a7d50fa207431718e3f1d85be811e8a315695a6533ac36be6742439f5aabbcc5e25be107
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SSDEEP
3072:I6VlhsJ0MUsvyMZeIT51B8u0gWCyiHCUPqga:KSDuyMwItf8u0gWCyiHC
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 89d3f41c1268adc609b010f78296447dc8d6540f520baf35d50d1687b509e9cd.exe Set value (int) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" gsvac.exe -
Executes dropped EXE 1 IoCs
pid Process 2344 gsvac.exe -
Loads dropped DLL 2 IoCs
pid Process 2960 89d3f41c1268adc609b010f78296447dc8d6540f520baf35d50d1687b509e9cd.exe 2960 89d3f41c1268adc609b010f78296447dc8d6540f520baf35d50d1687b509e9cd.exe -
Adds Run key to start application 2 TTPs 27 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /f" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /d" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /g" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /e" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /m" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /p" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /l" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /z" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /h" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /o" 89d3f41c1268adc609b010f78296447dc8d6540f520baf35d50d1687b509e9cd.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /o" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /q" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /b" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /k" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /r" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /t" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /a" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /j" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /c" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /v" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /x" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /y" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /s" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /u" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /i" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /w" gsvac.exe Set value (str) \REGISTRY\USER\S-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\gsvac = "C:\\Users\\Admin\\gsvac.exe /n" gsvac.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2960 89d3f41c1268adc609b010f78296447dc8d6540f520baf35d50d1687b509e9cd.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe 2344 gsvac.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2960 89d3f41c1268adc609b010f78296447dc8d6540f520baf35d50d1687b509e9cd.exe 2344 gsvac.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2960 wrote to memory of 2344 2960 89d3f41c1268adc609b010f78296447dc8d6540f520baf35d50d1687b509e9cd.exe 28 PID 2960 wrote to memory of 2344 2960 89d3f41c1268adc609b010f78296447dc8d6540f520baf35d50d1687b509e9cd.exe 28 PID 2960 wrote to memory of 2344 2960 89d3f41c1268adc609b010f78296447dc8d6540f520baf35d50d1687b509e9cd.exe 28 PID 2960 wrote to memory of 2344 2960 89d3f41c1268adc609b010f78296447dc8d6540f520baf35d50d1687b509e9cd.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\89d3f41c1268adc609b010f78296447dc8d6540f520baf35d50d1687b509e9cd.exe"C:\Users\Admin\AppData\Local\Temp\89d3f41c1268adc609b010f78296447dc8d6540f520baf35d50d1687b509e9cd.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2960 -
C:\Users\Admin\gsvac.exe"C:\Users\Admin\gsvac.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:2344
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
236KB
MD542523a9778cf9d858052602f8c0fa0cd
SHA1692ab9a3150b97a86daafafe96f7c9150c02c419
SHA2562b470f2b8742802c3b7e97a634d6ccb39ff7666f978ada68df704a0c52266192
SHA5123294c58a2ce5840d7fbba209396480037ddbc62e3df13e372ddb45b7147ebe07f60910655671c37047a32c243f408044d9a1451028df5ff34801ad9c15fd1d1a