Analysis Overview
SHA256
9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4
Threat Level: Known bad
The file 9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4 was found to be: Known bad.
Malicious Activity Summary
Modifies WinLogon for persistence
Modifies firewall policy service
Modifies security service
Darkcomet
Darkcomet family
Windows security bypass
Disables Task Manager via registry modification
Disables RegEdit via registry modification
Checks BIOS information in registry
Adds Run key to start application
Suspicious use of SetThreadContext
Runs ping.exe
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
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
151s
Max time network
49s
Command Line
Signatures
Darkcomet
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windupdt\\winupdate.exe" | C:\Users\Admin\AppData\Local\Temp\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.exe | N/A |
Modifies firewall policy service
| Description | Indicator | Process | Target |
| 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:\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\UpdatesDisableNotify = "1" | C:\Windows\SysWOW64\explorer.exe | N/A |
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\Windows\SysWOW64\explorer.exe | N/A |
Disables Task Manager via registry modification
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate | C:\Users\Admin\AppData\Local\Temp\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate | C:\Windows\SysWOW64\explorer.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run | C:\Users\Admin\AppData\Local\Temp\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe" | C:\Users\Admin\AppData\Local\Temp\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run | C:\Windows\SysWOW64\explorer.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1368 set thread context of 1820 | N/A | C:\Users\Admin\AppData\Local\Temp\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.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\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\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier | C:\Users\Admin\AppData\Local\Temp\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier | C:\Users\Admin\AppData\Local\Temp\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.exe | N/A |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Windows\SysWOW64\explorer.exe | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier | C:\Windows\SysWOW64\explorer.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier | C:\Users\Admin\AppData\Local\Temp\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.exe | N/A |
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\ping.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.exe
"C:\Users\Admin\AppData\Local\Temp\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.exe"
C:\Windows\SysWOW64\explorer.exe
"C:\Windows\SysWOW64\explorer.exe"
C:\Windows\SysWOW64\ping.exe
ping 127.0.0.1 -n 5 > NUL del "C:\Users\Admin\AppData\Local\Temp\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
Files
memory/1368-54-0x0000000076461000-0x0000000076463000-memory.dmp
memory/1820-55-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/1820-57-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/1820-58-0x000000000048E85C-mapping.dmp
memory/1020-60-0x0000000000000000-mapping.dmp
memory/1820-59-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/1820-62-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/1820-63-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/1820-64-0x0000000000400000-0x00000000004B8000-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
152s
Max time network
155s
Command Line
Signatures
Darkcomet
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windupdt\\winupdate.exe" | C:\Users\Admin\AppData\Local\Temp\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.exe | N/A |
Modifies firewall policy service
| Description | Indicator | Process | Target |
| 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:\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\UpdatesDisableNotify = "1" | C:\Windows\SysWOW64\explorer.exe | N/A |
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\Windows\SysWOW64\explorer.exe | N/A |
Disables Task Manager via registry modification
Checks BIOS information in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate | C:\Users\Admin\AppData\Local\Temp\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate | C:\Windows\SysWOW64\explorer.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Windupdt\\winupdate.exe" | C:\Users\Admin\AppData\Local\Temp\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run | C:\Windows\SysWOW64\explorer.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run | C:\Users\Admin\AppData\Local\Temp\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2516 set thread context of 440 | N/A | C:\Users\Admin\AppData\Local\Temp\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.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\VendorIdentifier | C:\Users\Admin\AppData\Local\Temp\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.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\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Users\Admin\AppData\Local\Temp\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier | C:\Users\Admin\AppData\Local\Temp\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.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\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier | C:\Windows\SysWOW64\explorer.exe | N/A |
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\ping.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\explorer.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.exe
"C:\Users\Admin\AppData\Local\Temp\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.exe"
C:\Windows\SysWOW64\explorer.exe
"C:\Windows\SysWOW64\explorer.exe"
C:\Windows\SysWOW64\ping.exe
ping 127.0.0.1 -n 5 > NUL del "C:\Users\Admin\AppData\Local\Temp\9efe2e4992da602c0356a160512698c89fecc5eb98b1096e069a840f847d0aa4.exe"
Network
| Country | Destination | Domain | Proto |
| US | 20.42.65.85:443 | tcp | |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| NL | 104.80.225.205:443 | tcp | |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| NL | 95.101.78.106:80 | tcp | |
| NL | 87.248.202.1:80 | tcp | |
| NL | 87.248.202.1:80 | tcp | |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
| US | 8.8.8.8:53 | araraz.no-ip.org | udp |
Files
memory/440-132-0x0000000000000000-mapping.dmp
memory/440-133-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/440-134-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/3232-135-0x0000000000000000-mapping.dmp
memory/440-136-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/440-137-0x0000000000400000-0x00000000004B8000-memory.dmp
memory/440-138-0x0000000000400000-0x00000000004B8000-memory.dmp