Analysis
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max time kernel
1151s -
max time network
1156s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
24-10-2024 18:49
Behavioral task
behavioral1
Sample
skuld.exe
Resource
win7-20241023-en
windows7-x64
0 signatures
1200 seconds
Behavioral task
behavioral2
Sample
skuld.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
4 signatures
1200 seconds
General
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Target
skuld.exe
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Size
9.9MB
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MD5
873e29ff957df42b18e9acd839e57854
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SHA1
d3db5b14226be6caed8481a606642a9a7c5da7e1
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SHA256
1c141c7280327dfae2729a768e31076cc23c972ef73e0323d0246e72423ba848
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SHA512
ff6b103efc45674c12b52b3c74f0d4425a6f240b9a021dea925621cd51a51ee1c5443b206446e90ca0d02aa8fc62e2107d06e6bd9b1ce71708838693809a97d1
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SSDEEP
98304:B/+UKnYehFlLUBnPZZMz9cXU5fpKePkE5B2v/ZmmzL:J+oehFN+BY9cXU9pKePdSDzL
Score
6/10
Malware Config
Signatures
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
skuld.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Realtek HD Audio Universal Service = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Protect\\SecurityHealthSystray.exe" skuld.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
skuld.exedescription pid process Token: SeDebugPrivilege 3672 skuld.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
skuld.exedescription pid process target process PID 3672 wrote to memory of 1144 3672 skuld.exe attrib.exe PID 3672 wrote to memory of 1144 3672 skuld.exe attrib.exe -
Views/modifies file attributes 1 TTPs 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\skuld.exe"C:\Users\Admin\AppData\Local\Temp\skuld.exe"1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3672 -
C:\Windows\system32\attrib.exeattrib +h +s C:\Users\Admin\AppData\Local\Temp\skuld.exe2⤵
- Views/modifies file attributes
PID:1144
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