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Analysis
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max time kernel
142s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
17/04/2023, 12:23
Static task
static1
Behavioral task
behavioral1
Sample
tmp.exe
Resource
win7-20230220-en
8 signatures
150 seconds
General
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Target
tmp.exe
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Size
1.6MB
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MD5
275da370ff541408db6cb518c5cfac46
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SHA1
93fcc120b726c765f8ef8c8199f83dae1c7428aa
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SHA256
80be572497d09410f8b103841c05dc2116af4f2ce9436e78ee50bc5f6c8b02dd
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SHA512
aa68b105c627404e826133a23521d3c339898a8b790951214f20ba9e2d2f4171541b278134413de116daaa668dea284ebec81b831cefcf1cc76a7fcfb4681570
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SSDEEP
49152:c2am57KY2tEUGN+OcdlC7N6DpMkc6/4qypRFrL6+mj8fQF283F9Cv4J:c5m5wtDGwOcdlChyq6/hyfFrL6V8fQFp
Malware Config
Signatures
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" tmp.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" tmp.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" tmp.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" tmp.exe -
Drops file in Program Files directory 1 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\PIA_S5_Proxy_cata\libcurl.dll tmp.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 3680 helppane.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2256 tmp.exe 3680 helppane.exe 3680 helppane.exe -
System policy modification 1 TTPs 3 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" tmp.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" tmp.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" tmp.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"1⤵
- UAC bypass
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Suspicious use of SetWindowsHookEx
- System policy modification
PID:2256
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C:\Windows\helppane.exeC:\Windows\helppane.exe -Embedding1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:3680