Analysis Overview
SHA256
666830e77c54ae9101711bf5188ec509ea1e63248338e02cea0a90759ca5fc8e
Threat Level: Known bad
The file stash.rar 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
2024-11-08 00:30
Signatures
Skuld family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-08 00:30
Reported
2024-11-08 00:33
Platform
win7-20240903-en
Max time kernel
118s
Max time network
119s
Command Line
Signatures
Processes
C:\Users\Admin\AppData\Local\Temp\stash.exe
"C:\Users\Admin\AppData\Local\Temp\stash.exe"
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-08 00:30
Reported
2024-11-08 00:33
Platform
win10v2004-20241007-en
Max time kernel
97s
Max time network
146s
Command Line
Signatures
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\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\stash.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\stash.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4944 wrote to memory of 3812 | N/A | C:\Users\Admin\AppData\Local\Temp\stash.exe | C:\Windows\system32\attrib.exe |
| PID 4944 wrote to memory of 3812 | N/A | C:\Users\Admin\AppData\Local\Temp\stash.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\stash.exe
"C:\Users\Admin\AppData\Local\Temp\stash.exe"
C:\Windows\system32\attrib.exe
attrib +h +s C:\Users\Admin\AppData\Local\Temp\stash.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 69.190.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |