Analysis Overview
SHA256
575c6834b225ef38c075d6c866d6ce5eff3b5c76b300c885e793accbef97f12a
Threat Level: Known bad
The file 575c6834b225ef38c075d6c866d6ce5eff3b5c76b300c885e793accbef97f12a was found to be: Known bad.
Malicious Activity Summary
Modifies WinLogon for persistence
Modifies WinLogon
Drops file in System32 directory
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-09 22:29
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-09 22:29
Reported
2024-11-09 22:31
Platform
win7-20240903-en
Max time kernel
150s
Max time network
121s
Command Line
Signatures
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "userinit.exe,C:\\Windows\\system32\\ntos.exe," | C:\Users\Admin\AppData\Local\Temp\575c6834b225ef38c075d6c866d6ce5eff3b5c76b300c885e793accbef97f12a.exe | N/A |
Modifies WinLogon
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\pathx = "C:\\Users\\Admin\\AppData\\Local\\Temp\\575c6834b225ef38c075d6c866d6ce5eff3b5c76b300c885e793accbef97f12a.exe" | C:\Users\Admin\AppData\Local\Temp\575c6834b225ef38c075d6c866d6ce5eff3b5c76b300c885e793accbef97f12a.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\ntos.exe | C:\Users\Admin\AppData\Local\Temp\575c6834b225ef38c075d6c866d6ce5eff3b5c76b300c885e793accbef97f12a.exe | N/A |
| File created | C:\Windows\SysWOW64\ntos.exe | C:\Users\Admin\AppData\Local\Temp\575c6834b225ef38c075d6c866d6ce5eff3b5c76b300c885e793accbef97f12a.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\575c6834b225ef38c075d6c866d6ce5eff3b5c76b300c885e793accbef97f12a.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\575c6834b225ef38c075d6c866d6ce5eff3b5c76b300c885e793accbef97f12a.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\575c6834b225ef38c075d6c866d6ce5eff3b5c76b300c885e793accbef97f12a.exe
"C:\Users\Admin\AppData\Local\Temp\575c6834b225ef38c075d6c866d6ce5eff3b5c76b300c885e793accbef97f12a.exe"
Network
Files
memory/2384-5-0x0000000014D00000-0x0000000014D26390-memory.dmp
memory/2384-7-0x0000000014D00000-0x0000000014D26390-memory.dmp
memory/2384-6-0x0000000014D00000-0x0000000014D26390-memory.dmp
memory/2384-4-0x0000000014D00000-0x0000000014D26390-memory.dmp
memory/2384-3-0x0000000014D00000-0x0000000014D26390-memory.dmp
memory/2384-2-0x0000000014D1D000-0x0000000014D25000-memory.dmp
memory/2384-1-0x0000000014D00000-0x0000000014D26390-memory.dmp
memory/2384-0-0x0000000014D00000-0x0000000014D26390-memory.dmp
memory/2384-12-0x0000000014D1D000-0x0000000014D25000-memory.dmp
memory/2384-13-0x0000000014D00000-0x0000000014D26390-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-09 22:29
Reported
2024-11-09 22:31
Platform
win10v2004-20241007-en
Max time kernel
102s
Max time network
143s
Command Line
Signatures
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\system32\\ntos.exe," | C:\Users\Admin\AppData\Local\Temp\575c6834b225ef38c075d6c866d6ce5eff3b5c76b300c885e793accbef97f12a.exe | N/A |
Modifies WinLogon
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\pathx = "C:\\Users\\Admin\\AppData\\Local\\Temp\\575c6834b225ef38c075d6c866d6ce5eff3b5c76b300c885e793accbef97f12a.exe" | C:\Users\Admin\AppData\Local\Temp\575c6834b225ef38c075d6c866d6ce5eff3b5c76b300c885e793accbef97f12a.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\ntos.exe | C:\Users\Admin\AppData\Local\Temp\575c6834b225ef38c075d6c866d6ce5eff3b5c76b300c885e793accbef97f12a.exe | N/A |
| File created | C:\Windows\SysWOW64\ntos.exe | C:\Users\Admin\AppData\Local\Temp\575c6834b225ef38c075d6c866d6ce5eff3b5c76b300c885e793accbef97f12a.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\575c6834b225ef38c075d6c866d6ce5eff3b5c76b300c885e793accbef97f12a.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\575c6834b225ef38c075d6c866d6ce5eff3b5c76b300c885e793accbef97f12a.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Windows\system32\winlogon.exe
winlogon.exe
C:\Users\Admin\AppData\Local\Temp\575c6834b225ef38c075d6c866d6ce5eff3b5c76b300c885e793accbef97f12a.exe
"C:\Users\Admin\AppData\Local\Temp\575c6834b225ef38c075d6c866d6ce5eff3b5c76b300c885e793accbef97f12a.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 98.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
Files
memory/2360-0-0x0000000014D00000-0x0000000014D26390-memory.dmp
memory/2360-1-0x0000000014D00000-0x0000000014D26390-memory.dmp
memory/2360-3-0x0000000014D00000-0x0000000014D26390-memory.dmp
memory/2360-2-0x0000000014D1D000-0x0000000014D25000-memory.dmp
memory/2360-4-0x0000000014D00000-0x0000000014D26390-memory.dmp
memory/2360-5-0x0000000014D00000-0x0000000014D26390-memory.dmp
memory/632-10-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-19-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-15-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-25-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-57-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-56-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-54-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-52-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-51-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-50-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-46-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-48-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-47-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-44-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-36-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-40-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-39-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-38-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-37-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-35-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-34-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-33-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-31-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-29-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-23-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-21-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-17-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-58-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-13-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-53-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-55-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-49-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-45-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-43-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-28-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/632-11-0x0000000014D00000-0x0000000014D27000-memory.dmp
memory/2360-7782-0x0000000014D00000-0x0000000014D26390-memory.dmp
memory/2360-9650-0x0000000014D1D000-0x0000000014D25000-memory.dmp