Analysis Overview
SHA256
b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073
Threat Level: Known bad
The file b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073 was found to be: Known bad.
Malicious Activity Summary
Darkcomet
Modifies firewall policy service
Disables Task Manager via registry modification
Disables RegEdit via registry modification
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-10-11 06:54
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-10-11 06:54
Reported
2022-10-11 08:47
Platform
win7-20220812-en
Max time kernel
146s
Max time network
154s
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\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" | C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" | C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe | N/A |
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe | N/A |
Disables Task Manager via registry modification
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe
"C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
Files
memory/1132-54-0x0000000075931000-0x0000000075933000-memory.dmp
memory/1132-55-0x0000000000400000-0x0000000000535000-memory.dmp
memory/1132-56-0x0000000001DD0000-0x0000000001E30000-memory.dmp
memory/1132-57-0x00000000032D0000-0x00000000032D3000-memory.dmp
memory/1132-58-0x0000000000400000-0x0000000000535000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2022-10-11 06:54
Reported
2022-10-11 08:47
Platform
win10v2004-20220812-en
Max time kernel
152s
Max time network
154s
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\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" | C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" | C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe | N/A |
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe | N/A |
Disables Task Manager via registry modification
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe
"C:\Users\Admin\AppData\Local\Temp\b8f05bdec04bebe6126154938cd87d951e746fb7a4dd09dcb0cd75ed78422073.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 93.184.221.240:80 | tcp | |
| US | 93.184.221.240:80 | tcp | |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| DE | 20.52.64.200:443 | tcp | |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | 106.89.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| NL | 87.248.202.1:80 | tcp | |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | joker0.tzo.net | udp |
| US | 8.8.8.8:53 | udp |
Files
memory/1684-132-0x0000000000400000-0x0000000000535000-memory.dmp
memory/1684-133-0x0000000002330000-0x0000000002390000-memory.dmp
memory/1684-134-0x0000000003430000-0x0000000003433000-memory.dmp
memory/1684-135-0x0000000000400000-0x0000000000535000-memory.dmp