Analysis Overview
SHA256
39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39
Threat Level: Known bad
The file 39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39 was found to be: Known bad.
Malicious Activity Summary
Darkcomet family
Windows security bypass
Modifies security service
Modifies firewall policy service
Darkcomet
Windows security modification
Checks BIOS information in registry
Suspicious use of SetThreadContext
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Checks processor information in registry
Suspicious use of AdjustPrivilegeToken
Enumerates system info in registry
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-10-19 13:29
Signatures
Darkcomet family
Analysis: behavioral1
Detonation Overview
Submitted
2022-10-19 13:29
Reported
2022-10-19 14:08
Platform
win7-20220901-en
Max time kernel
150s
Max time network
52s
Command Line
Signatures
Darkcomet
Modifies firewall policy service
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "1" | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1" | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
Modifies security service
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4" | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
Windows security bypass
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1380 wrote to memory of 1232 | N/A | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | C:\Windows\SysWOW64\explorer.exe |
| PID 1380 wrote to memory of 1232 | N/A | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | C:\Windows\SysWOW64\explorer.exe |
| PID 1380 wrote to memory of 1232 | N/A | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | C:\Windows\SysWOW64\explorer.exe |
| PID 1380 wrote to memory of 1232 | N/A | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | C:\Windows\SysWOW64\explorer.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe
"C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe"
C:\Windows\SysWOW64\explorer.exe
"C:\Windows\SysWOW64\explorer.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
Files
memory/1380-54-0x00000000757A1000-0x00000000757A3000-memory.dmp
memory/1380-55-0x0000000000400000-0x00000000004E3000-memory.dmp
memory/1380-56-0x0000000000400000-0x00000000004E3000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-10-19 13:29
Reported
2022-10-19 14:08
Platform
win10v2004-20220812-en
Max time kernel
157s
Max time network
158s
Command Line
Signatures
Darkcomet
Modifies firewall policy service
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "1" | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1" | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile | C:\Windows\SysWOW64\explorer.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "1" | C:\Windows\SysWOW64\explorer.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "1" | C:\Windows\SysWOW64\explorer.exe | N/A |
Modifies security service
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4" | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4" | C:\Windows\SysWOW64\explorer.exe | N/A |
Windows security bypass
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Windows\SysWOW64\explorer.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate | C:\Windows\SysWOW64\explorer.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1440 set thread context of 4936 | N/A | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | C:\Windows\SysWOW64\explorer.exe |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Windows\SysWOW64\explorer.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Windows\SysWOW64\explorer.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier | C:\Windows\SysWOW64\explorer.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier | C:\Windows\SysWOW64\explorer.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier | C:\Windows\SysWOW64\explorer.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1440 wrote to memory of 4936 | N/A | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | C:\Windows\SysWOW64\explorer.exe |
| PID 1440 wrote to memory of 4936 | N/A | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | C:\Windows\SysWOW64\explorer.exe |
| PID 1440 wrote to memory of 4936 | N/A | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | C:\Windows\SysWOW64\explorer.exe |
| PID 1440 wrote to memory of 4936 | N/A | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | C:\Windows\SysWOW64\explorer.exe |
| PID 1440 wrote to memory of 4936 | N/A | C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe | C:\Windows\SysWOW64\explorer.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe
"C:\Users\Admin\AppData\Local\Temp\39ea357921d1df20a8eb93b8f2d6f818d4ae15b70380c02911ecb32d9124de39.exe"
C:\Windows\SysWOW64\explorer.exe
"C:\Windows\SysWOW64\explorer.exe"
Network
| Country | Destination | Domain | Proto |
| US | 52.168.117.170:443 | tcp | |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| NL | 178.79.208.1:80 | tcp | |
| NL | 178.79.208.1:80 | tcp | |
| NL | 178.79.208.1:80 | tcp | |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
| US | 8.8.8.8:53 | nnn111222.zapto.org | udp |
Files
memory/1440-132-0x0000000000400000-0x00000000004E3000-memory.dmp
memory/4936-133-0x0000000000000000-mapping.dmp
memory/4936-134-0x0000000000400000-0x00000000004E3000-memory.dmp
memory/4936-135-0x0000000000400000-0x00000000004E3000-memory.dmp
memory/4936-136-0x0000000000400000-0x00000000004E3000-memory.dmp
memory/4936-137-0x0000000000400000-0x00000000004E3000-memory.dmp
memory/1440-138-0x0000000000400000-0x00000000004E3000-memory.dmp
memory/4936-139-0x0000000000400000-0x00000000004E3000-memory.dmp