Analysis Overview
SHA256
3cf37367797ad61761ab44b22ec80c206d31411a604106d061be6935787b8110
Threat Level: Known bad
The file Realtek.exe was found to be: Known bad.
Malicious Activity Summary
StormKitty payload
Stormkitty family
Contains code to disable Windows Defender
StormKitty
Adds Run key to start application
Looks up external IP address via web service
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-23 14:31
Signatures
Contains code to disable Windows Defender
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
StormKitty payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Stormkitty family
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-23 14:31
Reported
2024-11-23 14:34
Platform
win7-20241010-en
Max time kernel
122s
Max time network
126s
Command Line
Signatures
Contains code to disable Windows Defender
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
StormKitty
StormKitty payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Stormkitty family
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\nvidiaDValueOn = "C:\\Users\\Admin\\AppData\\Local\\NVIDIA Local Drivers\\DriversUpdateProcess_x64.exe" | C:\Users\Admin\AppData\Local\Temp\Realtek.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | checkip.dyndns.org | N/A | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Realtek.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2088 wrote to memory of 3008 | N/A | C:\Users\Admin\AppData\Local\Temp\Realtek.exe | C:\Windows\system32\WerFault.exe |
| PID 2088 wrote to memory of 3008 | N/A | C:\Users\Admin\AppData\Local\Temp\Realtek.exe | C:\Windows\system32\WerFault.exe |
| PID 2088 wrote to memory of 3008 | N/A | C:\Users\Admin\AppData\Local\Temp\Realtek.exe | C:\Windows\system32\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\Realtek.exe
"C:\Users\Admin\AppData\Local\Temp\Realtek.exe"
C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 2088 -s 1068
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | checkip.dyndns.org | udp |
| BR | 132.226.247.73:80 | checkip.dyndns.org | tcp |
Files
memory/2088-0-0x000007FEF5F63000-0x000007FEF5F64000-memory.dmp
memory/2088-1-0x00000000000D0000-0x00000000000E8000-memory.dmp
memory/2088-2-0x000007FEF5F60000-0x000007FEF694C000-memory.dmp
memory/2088-5-0x000007FEF5F63000-0x000007FEF5F64000-memory.dmp
memory/2088-6-0x000007FEF5F60000-0x000007FEF694C000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-23 14:31
Reported
2024-11-23 14:34
Platform
win10v2004-20241007-en
Max time kernel
145s
Max time network
146s
Command Line
Signatures
Contains code to disable Windows Defender
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
StormKitty
StormKitty payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Stormkitty family
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\nvidiaDValueOn = "C:\\Users\\Admin\\AppData\\Local\\NVIDIA Local Drivers\\DriversUpdateProcess_x64.exe" | C:\Users\Admin\AppData\Local\Temp\Realtek.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | checkip.dyndns.org | N/A | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Realtek.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\Realtek.exe
"C:\Users\Admin\AppData\Local\Temp\Realtek.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | checkip.dyndns.org | udp |
| US | 193.122.130.0:80 | checkip.dyndns.org | tcp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.130.122.193.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 4.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 10.24.18.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 24.73.42.20.in-addr.arpa | udp |
Files
memory/3856-0-0x00007FFFD6ED3000-0x00007FFFD6ED5000-memory.dmp
memory/3856-1-0x00000000003A0000-0x00000000003B8000-memory.dmp
memory/3856-2-0x00007FFFD6ED0000-0x00007FFFD7991000-memory.dmp
memory/3856-5-0x00007FFFD6ED0000-0x00007FFFD7991000-memory.dmp