Analysis Overview
SHA256
acfea3b096016e833b7769d0511316b90f2492b425addd98937aa780d390f252
Threat Level: Known bad
The file acfea3b096016e833b7769d0511316b90f2492b425addd98937aa780d390f252N was found to be: Known bad.
Malicious Activity Summary
Skuld family
Adds Run key to start application
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Views/modifies file attributes
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-06 15:43
Signatures
Skuld family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-06 15:43
Reported
2024-11-06 15:45
Platform
win7-20240903-en
Max time kernel
15s
Max time network
18s
Command Line
Signatures
Processes
C:\Users\Admin\AppData\Local\Temp\acfea3b096016e833b7769d0511316b90f2492b425addd98937aa780d390f252N.exe
"C:\Users\Admin\AppData\Local\Temp\acfea3b096016e833b7769d0511316b90f2492b425addd98937aa780d390f252N.exe"
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-06 15:43
Reported
2024-11-06 15:45
Platform
win10v2004-20241007-en
Max time kernel
93s
Max time network
95s
Command Line
Signatures
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Realtek HD Audio Universal Service = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Protect\\SecurityHealthSystray.exe" | C:\Users\Admin\AppData\Local\Temp\acfea3b096016e833b7769d0511316b90f2492b425addd98937aa780d390f252N.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\acfea3b096016e833b7769d0511316b90f2492b425addd98937aa780d390f252N.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1344 wrote to memory of 4512 | N/A | C:\Users\Admin\AppData\Local\Temp\acfea3b096016e833b7769d0511316b90f2492b425addd98937aa780d390f252N.exe | C:\Windows\system32\attrib.exe |
| PID 1344 wrote to memory of 4512 | N/A | C:\Users\Admin\AppData\Local\Temp\acfea3b096016e833b7769d0511316b90f2492b425addd98937aa780d390f252N.exe | C:\Windows\system32\attrib.exe |
Views/modifies file attributes
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\attrib.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\acfea3b096016e833b7769d0511316b90f2492b425addd98937aa780d390f252N.exe
"C:\Users\Admin\AppData\Local\Temp\acfea3b096016e833b7769d0511316b90f2492b425addd98937aa780d390f252N.exe"
C:\Windows\system32\attrib.exe
attrib +h +s C:\Users\Admin\AppData\Local\Temp\acfea3b096016e833b7769d0511316b90f2492b425addd98937aa780d390f252N.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |