Analysis
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max time kernel
148s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
10/01/2024, 22:53
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
51d72a84097c3f96e11e6ef825fde3fe.exe
Resource
win7-20231215-en
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
51d72a84097c3f96e11e6ef825fde3fe.exe
Resource
win10v2004-20231222-en
6 signatures
150 seconds
General
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Target
51d72a84097c3f96e11e6ef825fde3fe.exe
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Size
620KB
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MD5
51d72a84097c3f96e11e6ef825fde3fe
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SHA1
09ab0b90e537d3db5db078505b1d3b16a171ac6c
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SHA256
48e978e540ece1077dd2f836f17f3ae6422004dc7475be80d63676039315883c
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SHA512
7c00a47c6ab614f6aebcdf98e78b256f021255612eee04818e9bde2b91b143339ff693e7f2472e42318092c84e14d37d9e49b41ba1f29d439bf89da4f5db08ec
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SSDEEP
12288:9vsCG6a7hOPo0VdfG1mIn0sSelRnlUZrHQl8:9vsB6aIJH6m0hl9lUtwl
Score
10/10
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\WINDOWS\\winlogon.exe" 51d72a84097c3f96e11e6ef825fde3fe.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 51d72a84097c3f96e11e6ef825fde3fe.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate 51d72a84097c3f96e11e6ef825fde3fe.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\WINDOWS\winlogon.exe 51d72a84097c3f96e11e6ef825fde3fe.exe File opened for modification C:\WINDOWS\winlogon.exe 51d72a84097c3f96e11e6ef825fde3fe.exe -
Modifies registry class 5 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InProcServer32\ThreadingModel = "Both" 51d72a84097c3f96e11e6ef825fde3fe.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA} 51d72a84097c3f96e11e6ef825fde3fe.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\Containers 51d72a84097c3f96e11e6ef825fde3fe.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InProcServer32 51d72a84097c3f96e11e6ef825fde3fe.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InProcServer32\ = "%SystemRoot%\\SysWow64\\windowscodecs.dll" 51d72a84097c3f96e11e6ef825fde3fe.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: 33 4164 51d72a84097c3f96e11e6ef825fde3fe.exe Token: SeIncBasePriorityPrivilege 4164 51d72a84097c3f96e11e6ef825fde3fe.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4164 51d72a84097c3f96e11e6ef825fde3fe.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\51d72a84097c3f96e11e6ef825fde3fe.exe"C:\Users\Admin\AppData\Local\Temp\51d72a84097c3f96e11e6ef825fde3fe.exe"1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4164