Analysis Overview
SHA256
76d00037ad0e19a299b97f7781affae6c33254887d0068dd7d13a34cc3d26297
Threat Level: Known bad
The file 1.exe was found to be: Known bad.
Malicious Activity Summary
RunningRat payload
Runningrat family
RunningRat
Executes dropped EXE
Sets DLL path for service in the registry
Loads dropped DLL
Drops file in System32 directory
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-09-07 11:36
Signatures
RunningRat payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Runningrat family
Analysis: behavioral2
Detonation Overview
Submitted
2022-09-07 11:36
Reported
2022-09-07 11:39
Platform
win10v2004-20220901-en
Max time kernel
146s
Max time network
153s
Command Line
Signatures
RunningRat
RunningRat payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\SRDSLS.exe | N/A |
Sets DLL path for service in the registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SRDSLS\Parameters\ServiceDll = "C:\\Windows\\system32\\240562484.dll" | C:\Users\Admin\AppData\Local\Temp\1.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\1.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\1.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\SRDSLS.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\240562484.dll | C:\Users\Admin\AppData\Local\Temp\1.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\ini.ini | C:\Users\Admin\AppData\Local\Temp\1.exe | N/A |
| File created | C:\Windows\SysWOW64\SRDSLS.exe | C:\Windows\SysWOW64\svchost.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\SRDSLS.exe | C:\Windows\SysWOW64\svchost.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 444 wrote to memory of 2440 | N/A | C:\Windows\SysWOW64\svchost.exe | C:\Windows\SysWOW64\SRDSLS.exe |
| PID 444 wrote to memory of 2440 | N/A | C:\Windows\SysWOW64\svchost.exe | C:\Windows\SysWOW64\SRDSLS.exe |
| PID 444 wrote to memory of 2440 | N/A | C:\Windows\SysWOW64\svchost.exe | C:\Windows\SysWOW64\SRDSLS.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\1.exe
"C:\Users\Admin\AppData\Local\Temp\1.exe"
C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "SRDSLS"
C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "SRDSLS"
C:\Windows\SysWOW64\SRDSLS.exe
C:\Windows\system32\SRDSLS.exe "c:\windows\system32\240562484.dll",MainThread
Network
| Country | Destination | Domain | Proto |
| US | 8.253.135.112:80 | tcp | |
| US | 8.253.135.112:80 | tcp | |
| US | 8.8.8.8:53 | wuxi.tanxinyu.cn | udp |
| HK | 20.239.56.69:520 | wuxi.tanxinyu.cn | tcp |
| NL | 104.80.225.205:443 | tcp | |
| US | 20.189.173.4:443 | tcp | |
| NL | 178.79.208.1:80 | tcp | |
| NL | 178.79.208.1:80 | tcp | |
| NL | 178.79.208.1:80 | tcp | |
| HK | 20.239.56.69:520 | wuxi.tanxinyu.cn | tcp |
Files
memory/4888-132-0x0000000010000000-0x000000001000F000-memory.dmp
C:\Windows\SysWOW64\240562484.dll
| MD5 | 164715ebaa909f51ca71773f920f7309 |
| SHA1 | 25391b5a4e70a18146860922dd167a16e1561541 |
| SHA256 | 169d74f19b79a6e0bdcc79386517b784870f9a6d4e3ff0174ddd03436f7496d7 |
| SHA512 | 2ead5f0d370e72e942031cd8777deff76adaa03b2f17d1c556f622326271da19a5d29d5f84e55b885fbb6305b99a4f51f5015e0fd71d0936ce301d89f31cb826 |
C:\Windows\SysWOW64\240562484.dll
| MD5 | 164715ebaa909f51ca71773f920f7309 |
| SHA1 | 25391b5a4e70a18146860922dd167a16e1561541 |
| SHA256 | 169d74f19b79a6e0bdcc79386517b784870f9a6d4e3ff0174ddd03436f7496d7 |
| SHA512 | 2ead5f0d370e72e942031cd8777deff76adaa03b2f17d1c556f622326271da19a5d29d5f84e55b885fbb6305b99a4f51f5015e0fd71d0936ce301d89f31cb826 |
memory/4888-138-0x00000000005C0000-0x00000000005CD000-memory.dmp
\??\c:\windows\SysWOW64\240562484.dll
| MD5 | 164715ebaa909f51ca71773f920f7309 |
| SHA1 | 25391b5a4e70a18146860922dd167a16e1561541 |
| SHA256 | 169d74f19b79a6e0bdcc79386517b784870f9a6d4e3ff0174ddd03436f7496d7 |
| SHA512 | 2ead5f0d370e72e942031cd8777deff76adaa03b2f17d1c556f622326271da19a5d29d5f84e55b885fbb6305b99a4f51f5015e0fd71d0936ce301d89f31cb826 |
C:\Windows\SysWOW64\240562484.dll
| MD5 | 164715ebaa909f51ca71773f920f7309 |
| SHA1 | 25391b5a4e70a18146860922dd167a16e1561541 |
| SHA256 | 169d74f19b79a6e0bdcc79386517b784870f9a6d4e3ff0174ddd03436f7496d7 |
| SHA512 | 2ead5f0d370e72e942031cd8777deff76adaa03b2f17d1c556f622326271da19a5d29d5f84e55b885fbb6305b99a4f51f5015e0fd71d0936ce301d89f31cb826 |
memory/2440-141-0x0000000000000000-mapping.dmp
C:\Windows\SysWOW64\SRDSLS.exe
| MD5 | 889b99c52a60dd49227c5e485a016679 |
| SHA1 | 8fa889e456aa646a4d0a4349977430ce5fa5e2d7 |
| SHA256 | 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910 |
| SHA512 | 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641 |
C:\Windows\SysWOW64\SRDSLS.exe
| MD5 | 889b99c52a60dd49227c5e485a016679 |
| SHA1 | 8fa889e456aa646a4d0a4349977430ce5fa5e2d7 |
| SHA256 | 6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910 |
| SHA512 | 08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641 |
C:\Windows\SysWOW64\240562484.dll
| MD5 | 164715ebaa909f51ca71773f920f7309 |
| SHA1 | 25391b5a4e70a18146860922dd167a16e1561541 |
| SHA256 | 169d74f19b79a6e0bdcc79386517b784870f9a6d4e3ff0174ddd03436f7496d7 |
| SHA512 | 2ead5f0d370e72e942031cd8777deff76adaa03b2f17d1c556f622326271da19a5d29d5f84e55b885fbb6305b99a4f51f5015e0fd71d0936ce301d89f31cb826 |
Analysis: behavioral1
Detonation Overview
Submitted
2022-09-07 11:36
Reported
2022-09-07 11:39
Platform
win7-20220812-en
Max time kernel
37s
Max time network
41s
Command Line
Signatures
RunningRat
RunningRat payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\1.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\7093724.dll | C:\Users\Admin\AppData\Local\Temp\1.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\1.exe
"C:\Users\Admin\AppData\Local\Temp\1.exe"
Network
Files
memory/1384-54-0x0000000010000000-0x000000001000F000-memory.dmp
memory/1384-58-0x0000000076701000-0x0000000076703000-memory.dmp
\Windows\SysWOW64\7093724.dll
| MD5 | 6885e1deaf80970a470bc0beecd46632 |
| SHA1 | 3e1d477eafb9573c58d25c7fc2037b643056f524 |
| SHA256 | 4463d79f7e2b8e03129d0a2ac355ac7f3edf2bcdb2b627ebb932438992be9e8b |
| SHA512 | e45f27712629701feb729e2ec2b9377e236004074afb2dbb00914c6abe04446c7d1251d3db4178a430382f0708c1a401a01ff65e6e2b7f54f5f910045f18956f |
memory/1384-60-0x0000000000250000-0x000000000025D000-memory.dmp