Analysis Overview
SHA256
655eea77b66bbaa7012c3f84d6d6e81c4348146ea0736db0b329a2a9c1a9ada6
Threat Level: Known bad
The file test.exe was found to be: Known bad.
Malicious Activity Summary
Darkcomet family
Windows security bypass
Modifies security service
Modifies WinLogon for persistence
Modifies firewall policy service
Darkcomet
Sets file to hidden
Windows security modification
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Adds Run key to start application
Suspicious use of SetThreadContext
Enumerates physical storage devices
Unsigned PE
System Location Discovery: System Language Discovery
Suspicious behavior: GetForegroundWindowSpam
Views/modifies file attributes
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Modifies registry class
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-01 17:18
Signatures
Darkcomet family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-01 17:18
Reported
2024-08-01 17:21
Platform
win10v2004-20240730-en
Max time kernel
150s
Max time network
151s
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:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\test.exe | N/A |
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\Documents\MSDCSC\msdcsc.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
Modifies security service
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4" | C:\Program Files (x86)\Internet Explorer\iexplore.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\Documents\MSDCSC\msdcsc.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Sets file to hidden
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3774859476-2260090144-3466365324-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\test.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\MSDCSC\msdcsc.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\Documents\MSDCSC\msdcsc.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3774859476-2260090144-3466365324-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\test.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2296 set thread context of 2092 | N/A | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\notepad.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\test.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\attrib.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\attrib.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ | C:\Users\Admin\AppData\Local\Temp\test.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Suspicious use of WriteProcessMemory
System policy modification
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
Views/modifies file attributes
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\test.exe
"C:\Users\Admin\AppData\Local\Temp\test.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\test.exe" +s +h
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\test.exe" +s +h
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
C:\Windows\SysWOW64\notepad.exe
notepad
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | insurance-helmet.gl.at.ply.gg | udp |
| US | 147.185.221.21:31388 | insurance-helmet.gl.at.ply.gg | tcp |
| US | 8.8.8.8:53 | 84.177.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 25.140.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.221.185.147.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 147.142.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
Files
memory/5052-0-0x00000000007E0000-0x00000000007E1000-memory.dmp
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
| MD5 | ec24d90ed3c9befd6c389eef8a7b30d0 |
| SHA1 | fd5ced24ad422b5f3d63b90b99384b7b7dbb4792 |
| SHA256 | 655eea77b66bbaa7012c3f84d6d6e81c4348146ea0736db0b329a2a9c1a9ada6 |
| SHA512 | 0652aabb75f7cf146d58e22a2dc0d6c8db0ef360776edf52282dad7389c3efb908c39e14f2d4ece4480e481f5cc19123fac5479f0e3e587df9471ec0214892dd |
memory/2296-61-0x0000000002170000-0x0000000002171000-memory.dmp
memory/2092-62-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2296-63-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2480-64-0x00000000010A0000-0x00000000010A1000-memory.dmp
memory/5052-65-0x0000000000400000-0x00000000004B2000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-01 17:18
Reported
2024-08-01 17:21
Platform
win7-20240704-en
Max time kernel
150s
Max time network
150s
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:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\test.exe | N/A |
Modifies firewall policy service
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Modifies security service
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4" | C:\Program Files (x86)\Internet Explorer\iexplore.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\Documents\MSDCSC\msdcsc.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Sets file to hidden
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\test.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\test.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\Documents\MSDCSC\msdcsc.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\test.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2788 set thread context of 2480 | N/A | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\attrib.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\attrib.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\notepad.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\test.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Suspicious use of WriteProcessMemory
System policy modification
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1" | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
Views/modifies file attributes
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\attrib.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\test.exe
"C:\Users\Admin\AppData\Local\Temp\test.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\test.exe" +s +h
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\test.exe" +s +h
C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
C:\Windows\SysWOW64\notepad.exe
notepad
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | insurance-helmet.gl.at.ply.gg | udp |
| US | 147.185.221.21:31388 | insurance-helmet.gl.at.ply.gg | tcp |
Files
memory/1980-0-0x00000000002C0000-0x00000000002C1000-memory.dmp
\Users\Admin\Documents\MSDCSC\msdcsc.exe
| MD5 | ec24d90ed3c9befd6c389eef8a7b30d0 |
| SHA1 | fd5ced24ad422b5f3d63b90b99384b7b7dbb4792 |
| SHA256 | 655eea77b66bbaa7012c3f84d6d6e81c4348146ea0736db0b329a2a9c1a9ada6 |
| SHA512 | 0652aabb75f7cf146d58e22a2dc0d6c8db0ef360776edf52282dad7389c3efb908c39e14f2d4ece4480e481f5cc19123fac5479f0e3e587df9471ec0214892dd |
memory/2480-12-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/2788-13-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/1980-14-0x0000000000400000-0x00000000004B2000-memory.dmp
memory/1688-15-0x0000000000080000-0x0000000000081000-memory.dmp
memory/1688-53-0x00000000001E0000-0x00000000001E1000-memory.dmp