Analysis Overview
SHA256
68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a
Threat Level: Known bad
The file 68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a was found to be: Known bad.
Malicious Activity Summary
Darkcomet family
Modifies WinLogon for persistence
Darkcomet
Drops file in Drivers directory
Checks computer location settings
Loads dropped DLL
Executes dropped EXE
Adds Run key to start application
Enumerates physical storage devices
Unsigned PE
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-21 22:29
Signatures
Darkcomet family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-21 22:29
Reported
2024-06-21 22:32
Platform
win7-20240508-en
Max time kernel
138s
Max time network
145s
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\68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a.exe | N/A |
Drops file in Drivers directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\system32\drivers\etc\hosts | C:\Users\Admin\AppData\Local\Temp\68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a.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\68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-268080393-3149932598-1824759070-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a.exe | N/A |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\DllHost.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2984 wrote to memory of 2520 | N/A | C:\Users\Admin\AppData\Local\Temp\68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a.exe | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe |
| PID 2984 wrote to memory of 2520 | N/A | C:\Users\Admin\AppData\Local\Temp\68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a.exe | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe |
| PID 2984 wrote to memory of 2520 | N/A | C:\Users\Admin\AppData\Local\Temp\68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a.exe | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe |
| PID 2984 wrote to memory of 2520 | N/A | C:\Users\Admin\AppData\Local\Temp\68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a.exe | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a.exe
"C:\Users\Admin\AppData\Local\Temp\68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a.exe"
C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
Network
| Country | Destination | Domain | Proto |
| N/A | 192.168.124.129:1604 | tcp | |
| N/A | 192.168.124.129:1604 | tcp | |
| N/A | 192.168.124.129:1604 | tcp | |
| N/A | 192.168.124.129:1604 | tcp | |
| N/A | 192.168.124.129:1604 | tcp | |
| N/A | 192.168.124.129:1604 | tcp | |
| N/A | 192.168.124.129:1604 | tcp |
Files
memory/2984-0-0x0000000000260000-0x0000000000261000-memory.dmp
memory/2984-5-0x00000000021A0000-0x00000000021A2000-memory.dmp
memory/2696-6-0x00000000001A0000-0x00000000001A2000-memory.dmp
memory/2696-7-0x00000000002A0000-0x00000000002A1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\IMAGE1.PNG
| MD5 | c5fe8a51879d59c371506a672acf1831 |
| SHA1 | 30eeb21ad0b8c30d1e45b78e733a7966f3009503 |
| SHA256 | d58e159d5dc87ab5c10514ea6de719a0a31e2c5c6e3846553bb65b3f660590b7 |
| SHA512 | c3688bd4416f1a74462c6d73083cb558af54ccaf7c526e80a9ee6513fd0b231869f5dbac3b887091f4ab82247c86cf1e0792efe0b8803186e467e4c0996020e5 |
\Users\Admin\Documents\MSDCSC\msdcsc.exe
| MD5 | 66f3b3833902264db9ef07ca2f83ff52 |
| SHA1 | d3da2491ce5db90511b5896932a688e800dd620b |
| SHA256 | 68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a |
| SHA512 | 2b56e45bc1411a7335ff3cf467a3acaae3c21ce92ebe8e87c8a5f93a6bc145d7cc12f1d98e088c104cef9741ae44640e50f293fad7b24173f9aab0a0ac5d1dfe |
memory/2984-18-0x0000000000400000-0x00000000004DF000-memory.dmp
memory/2520-19-0x0000000000400000-0x00000000004DF000-memory.dmp
memory/2696-21-0x00000000002A0000-0x00000000002A1000-memory.dmp
memory/2520-22-0x0000000000400000-0x00000000004DF000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-21 22:29
Reported
2024-06-21 22:32
Platform
win10v2004-20240611-en
Max time kernel
149s
Max time network
123s
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\68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a.exe | N/A |
Drops file in Drivers directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\system32\drivers\etc\hosts | C:\Users\Admin\AppData\Local\Temp\68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2080292272-204036150-2159171770-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | 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-1-5-21-2080292272-204036150-2159171770-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe" | C:\Users\Admin\AppData\Local\Temp\68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a.exe | N/A |
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1848 wrote to memory of 3664 | N/A | C:\Users\Admin\AppData\Local\Temp\68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a.exe | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe |
| PID 1848 wrote to memory of 3664 | N/A | C:\Users\Admin\AppData\Local\Temp\68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a.exe | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe |
| PID 1848 wrote to memory of 3664 | N/A | C:\Users\Admin\AppData\Local\Temp\68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a.exe | C:\Users\Admin\Documents\MSDCSC\msdcsc.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a.exe
"C:\Users\Admin\AppData\Local\Temp\68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a.exe"
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 13.107.21.237:443 | g.bing.com | tcp |
| BE | 88.221.83.184:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 133.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 144.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 184.83.221.88.in-addr.arpa | udp |
| N/A | 192.168.124.129:1604 | tcp | |
| 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 | 92.12.20.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 10.27.171.150.in-addr.arpa | udp |
Files
memory/1848-0-0x0000000002190000-0x0000000002191000-memory.dmp
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
| MD5 | 66f3b3833902264db9ef07ca2f83ff52 |
| SHA1 | d3da2491ce5db90511b5896932a688e800dd620b |
| SHA256 | 68b5724614943efc6e393be7d55fcd7b7c6d4640764abcc51e504ce800da286a |
| SHA512 | 2b56e45bc1411a7335ff3cf467a3acaae3c21ce92ebe8e87c8a5f93a6bc145d7cc12f1d98e088c104cef9741ae44640e50f293fad7b24173f9aab0a0ac5d1dfe |
memory/3664-15-0x00000000006F0000-0x00000000006F1000-memory.dmp
memory/1848-16-0x0000000000400000-0x00000000004DF000-memory.dmp
memory/3664-17-0x0000000000400000-0x00000000004DF000-memory.dmp
memory/3664-19-0x0000000000400000-0x00000000004DF000-memory.dmp