Analysis Overview
SHA256
2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d
Threat Level: Known bad
The file 2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d was found to be: Known bad.
Malicious Activity Summary
Sality
Modifies firewall policy service
UAC bypass
Windows security bypass
UPX packed file
Windows security modification
Checks whether UAC is enabled
Checks installed software on the system
Drops file in Windows directory
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
System policy modification
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-02-19 23:33
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-19 23:33
Reported
2024-02-19 23:36
Platform
win10v2004-20231215-en
Max time kernel
135s
Max time network
161s
Command Line
Signatures
Modifies firewall policy service
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
Sality
UAC bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
Windows security bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UacDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\Svc | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
Checks installed software on the system
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\e5848fb | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| File opened for modification | C:\Windows\SYSTEM.INI | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4516 wrote to memory of 796 | N/A | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | C:\Windows\system32\fontdrvhost.exe |
| PID 4516 wrote to memory of 804 | N/A | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | C:\Windows\system32\fontdrvhost.exe |
| PID 4516 wrote to memory of 388 | N/A | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | C:\Windows\system32\dwm.exe |
| PID 4516 wrote to memory of 2468 | N/A | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | C:\Windows\system32\sihost.exe |
System policy modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
Processes
C:\Windows\system32\fontdrvhost.exe
"fontdrvhost.exe"
C:\Windows\system32\dwm.exe
"dwm.exe"
C:\Windows\system32\sihost.exe
sihost.exe
C:\Windows\system32\fontdrvhost.exe
"fontdrvhost.exe"
C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe
"C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 180.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.71.91.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 27.178.89.13.in-addr.arpa | udp |
Files
memory/4516-0-0x0000000000400000-0x0000000000686000-memory.dmp
memory/4516-2-0x0000000002580000-0x000000000363A000-memory.dmp
memory/4516-4-0x0000000002580000-0x000000000363A000-memory.dmp
memory/4516-5-0x0000000002580000-0x000000000363A000-memory.dmp
memory/4516-8-0x0000000000400000-0x0000000000686000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-19 23:33
Reported
2024-02-19 23:36
Platform
win7-20231215-en
Max time kernel
121s
Max time network
128s
Command Line
Signatures
Modifies firewall policy service
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DoNotAllowExceptions = "0" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
Sality
UAC bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
Windows security bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UacDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\Svc | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
Checks installed software on the system
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\f76af23 | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
| File opened for modification | C:\Windows\SYSTEM.INI | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
Suspicious behavior: EnumeratesProcesses
System policy modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe
"C:\Users\Admin\AppData\Local\Temp\2b4c82794f9e514f7c50029caffc07af5a02e36021b8342238c7fc93fe75b51d.exe"
Network
Files
memory/1104-0-0x0000000000400000-0x0000000000686000-memory.dmp
memory/1104-1-0x00000000020E0000-0x000000000319A000-memory.dmp
memory/1104-3-0x00000000020E0000-0x000000000319A000-memory.dmp
memory/1104-5-0x0000000000400000-0x0000000000686000-memory.dmp