Analysis Overview
SHA256
dc7ff4f30e2e8614cdbdf71dcdc57bd7317636cf58a609b9a372ea9e397c3e04
Threat Level: Known bad
The file dce418538293d2c87f78304af5ed1dcb was found to be: Known bad.
Malicious Activity Summary
Modifies firewall policy service
Reads user/profile data of web browsers
Deletes itself
Checks computer location settings
Installs/modifies Browser Helper Object
Drops file in System32 directory
Enumerates physical storage devices
Unsigned PE
Modifies registry class
Modifies Internet Explorer settings
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-25 01:19
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-25 01:19
Reported
2024-03-25 01:22
Platform
win7-20240221-en
Max time kernel
117s
Max time network
119s
Command Line
Signatures
Modifies firewall policy service
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Program Files\Internet Explorer\IEXPLORE.EXE = "C:\\Program Files\\Internet Explorer\\IEXPLORE.EXE:*:Enabled:Internet Explorer" | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Reads user/profile data of web browsers
Installs/modifies Browser Helper Object
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8} | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\msrdo20x24.dll | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
Enumerates physical storage devices
Modifies Internet Explorer settings
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Internet Explorer\Main\Enable Browser Extensions = "yes" | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8}\InprocServer32 | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8}\InprocServer32\ = "C:\\Windows\\SysWow64\\\\msrdo20x24.dll" | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8}\InprocServer32\Apartment = "ThreadingModel" | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8} | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8} | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1996 wrote to memory of 2532 | N/A | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1996 wrote to memory of 2532 | N/A | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1996 wrote to memory of 2532 | N/A | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1996 wrote to memory of 2532 | N/A | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe
"C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C msconfig.bat
Network
Files
memory/1996-0-0x0000000000400000-0x0000000000416000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\msconfig.bat
| MD5 | 1dcd29b406211dff03df3a3c123b0261 |
| SHA1 | 45aab8cc9d669b1e2e275838759b58a4185dbfaa |
| SHA256 | f1bfbd6549e4fc448d2feee81857eaeb7f6edf2bbf401e39ab62c1d183e1efb8 |
| SHA512 | 57212bf19f63c77ef0c0d7bfa32fbe6edd575f8d3e16f53ffa279c3777df59f62e8521e8d426568c01fda916b6f0bbaf98e2348a34733883b69d09062a6392ed |
memory/1996-4-0x0000000000400000-0x0000000000416000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-25 01:19
Reported
2024-03-25 01:22
Platform
win10v2004-20240226-en
Max time kernel
151s
Max time network
157s
Command Line
Signatures
Modifies firewall policy service
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Program Files\Internet Explorer\IEXPLORE.EXE = "C:\\Program Files\\Internet Explorer\\IEXPLORE.EXE:*:Enabled:Internet Explorer" | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
Reads user/profile data of web browsers
Installs/modifies Browser Helper Object
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8} | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\msrdo20x24.dll | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
Enumerates physical storage devices
Modifies Internet Explorer settings
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Enable Browser Extensions = "yes" | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8} | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8}\InprocServer32 | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8}\InprocServer32\ = "C:\\Windows\\SysWow64\\\\msrdo20x24.dll" | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8}\InprocServer32\Apartment = "ThreadingModel" | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{F6E20ADE-8CE8-492c-BCBA-ABF3EF2DE4E8} | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4796 wrote to memory of 3616 | N/A | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4796 wrote to memory of 3616 | N/A | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 4796 wrote to memory of 3616 | N/A | C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe
"C:\Users\Admin\AppData\Local\Temp\dce418538293d2c87f78304af5ed1dcb.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C msconfig.bat
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 180.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 73.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 185.13.222.173.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 178.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 90.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 174.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.73.42.20.in-addr.arpa | udp |
Files
memory/4796-0-0x0000000000400000-0x0000000000416000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\msconfig.bat
| MD5 | 1dcd29b406211dff03df3a3c123b0261 |
| SHA1 | 45aab8cc9d669b1e2e275838759b58a4185dbfaa |
| SHA256 | f1bfbd6549e4fc448d2feee81857eaeb7f6edf2bbf401e39ab62c1d183e1efb8 |
| SHA512 | 57212bf19f63c77ef0c0d7bfa32fbe6edd575f8d3e16f53ffa279c3777df59f62e8521e8d426568c01fda916b6f0bbaf98e2348a34733883b69d09062a6392ed |