Analysis Overview
SHA256
96bed5fdefc903bc41e0ffbe328e8ed6cb4c3261dd711b3e3e7b56df45d90135
Threat Level: Known bad
The file a2d7a570dc6b46bed057743394b59577.exe was found to be: Known bad.
Malicious Activity Summary
Runningrat family
RunningRat payload
RunningRat
Server Software Component: Terminal Services DLL
Executes dropped EXE
Deletes itself
Loads dropped DLL
Checks computer location settings
Drops file in System32 directory
Creates a Windows Service
System Location Discovery: System Language Discovery
Unsigned PE
System Network Configuration Discovery: Internet Connection Discovery
Enumerates physical storage devices
Runs ping.exe
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-10-17 12:31
Signatures
RunningRat payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Runningrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-10-17 12:31
Reported
2024-10-17 12:33
Platform
win7-20240903-en
Max time kernel
140s
Max time network
153s
Command Line
Signatures
RunningRat
Server Software Component: Terminal Services DLL
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SySyeu\Parameters\ServiceDll = "C:\\Users\\Admin\\AppData\\Local\\Temp\\259454856.dll" | C:\Users\Admin\AppData\Local\Temp\a2d7a570dc6b46bed057743394b59577.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\SySyeu.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a2d7a570dc6b46bed057743394b59577.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\SySyeu.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\SySyeu.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\SySyeu.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\SySyeu.exe | N/A |
Creates a Windows Service
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\SySyeu.exe | C:\Windows\SysWOW64\svchost.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\SySyeu.exe | C:\Windows\SysWOW64\svchost.exe | N/A |
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\svchost.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\PING.EXE | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\SySyeu.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\a2d7a570dc6b46bed057743394b59577.exe | N/A |
System Network Configuration Discovery: Internet Connection Discovery
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a2d7a570dc6b46bed057743394b59577.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\a2d7a570dc6b46bed057743394b59577.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a2d7a570dc6b46bed057743394b59577.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\a2d7a570dc6b46bed057743394b59577.exe
"C:\Users\Admin\AppData\Local\Temp\a2d7a570dc6b46bed057743394b59577.exe"
C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "SySyeu"
C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "SySyeu"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 -n 1 && del /f/q "C:\Users\Admin\AppData\Local\Temp\a2d7a570dc6b46bed057743394b59577.exe"
C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 1
C:\Windows\SysWOW64\SySyeu.exe
C:\Windows\system32\SySyeu.exe "c:\users\admin\appdata\local\temp\259454856.dll",MainThread
Network
| Country | Destination | Domain | Proto |
| CN | 119.91.152.151:8321 | tcp | |
| CN | 119.91.152.151:8321 | tcp | |
| CN | 119.91.152.151:8321 | tcp | |
| CN | 119.91.152.151:8321 | tcp | |
| CN | 119.91.152.151:8321 | tcp |
Files
\Users\Admin\AppData\Local\Temp\259454856.dll
| MD5 | db598538e7a70b73298f6424ae507e02 |
| SHA1 | d06a04fb9ca1bb8da5974870196ae5c0eadc1fa9 |
| SHA256 | cc4ab82995b0c0c827e99870948ef6a1371d4d1ed6d167a087c0d5c123d0f15e |
| SHA512 | ebedb94e2ba77836317596557fb447e6abc78fecfafce8de900d70202994fe829459665e0dec8813c51039b64a12d08258bc6074324b729994b61e8467f5e3fa |
C:\Windows\SysWOW64\SySyeu.exe
| MD5 | 51138beea3e2c21ec44d0932c71762a8 |
| SHA1 | 8939cf35447b22dd2c6e6f443446acc1bf986d58 |
| SHA256 | 5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124 |
| SHA512 | 794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d |
Analysis: behavioral2
Detonation Overview
Submitted
2024-10-17 12:31
Reported
2024-10-17 12:33
Platform
win10v2004-20241007-en
Max time kernel
140s
Max time network
148s
Command Line
Signatures
RunningRat
Server Software Component: Terminal Services DLL
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SySyeu\Parameters\ServiceDll = "C:\\Users\\Admin\\AppData\\Local\\Temp\\240627328.dll" | C:\Users\Admin\AppData\Local\Temp\a2d7a570dc6b46bed057743394b59577.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\a2d7a570dc6b46bed057743394b59577.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\SySyeu.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a2d7a570dc6b46bed057743394b59577.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\SySyeu.exe | N/A |
Creates a Windows Service
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\SySyeu.exe | C:\Windows\SysWOW64\svchost.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\SySyeu.exe | C:\Windows\SysWOW64\svchost.exe | N/A |
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\PING.EXE | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\SySyeu.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\a2d7a570dc6b46bed057743394b59577.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\svchost.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
System Network Configuration Discovery: Internet Connection Discovery
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\PING.EXE | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a2d7a570dc6b46bed057743394b59577.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a2d7a570dc6b46bed057743394b59577.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\a2d7a570dc6b46bed057743394b59577.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a2d7a570dc6b46bed057743394b59577.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\a2d7a570dc6b46bed057743394b59577.exe
"C:\Users\Admin\AppData\Local\Temp\a2d7a570dc6b46bed057743394b59577.exe"
C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "SySyeu"
C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "SySyeu"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 -n 1 && del /f/q "C:\Users\Admin\AppData\Local\Temp\a2d7a570dc6b46bed057743394b59577.exe"
C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 1
C:\Windows\SysWOW64\SySyeu.exe
C:\Windows\system32\SySyeu.exe "c:\users\admin\appdata\local\temp\240627328.dll",MainThread
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 0.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.201.86.20.in-addr.arpa | udp |
| CN | 119.91.152.151:8321 | tcp | |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| CN | 119.91.152.151:8321 | tcp | |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| CN | 119.91.152.151:8321 | tcp | |
| CN | 119.91.152.151:8321 | tcp | |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 10.28.171.150.in-addr.arpa | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| CN | 119.91.152.151:8321 | tcp |
Files
C:\Users\Admin\AppData\Local\Temp\240627328.dll
| MD5 | db598538e7a70b73298f6424ae507e02 |
| SHA1 | d06a04fb9ca1bb8da5974870196ae5c0eadc1fa9 |
| SHA256 | cc4ab82995b0c0c827e99870948ef6a1371d4d1ed6d167a087c0d5c123d0f15e |
| SHA512 | ebedb94e2ba77836317596557fb447e6abc78fecfafce8de900d70202994fe829459665e0dec8813c51039b64a12d08258bc6074324b729994b61e8467f5e3fa |
C:\Windows\SysWOW64\SySyeu.exe
| MD5 | 889b99c52a60dd49227c5e485a016679 |
| SHA1 | 8fa889e456aa646a4d0a4349977430ce5fa5e2d7 |
| SHA256 | 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910 |
| SHA512 | 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641 |