Analysis Overview
SHA256
640ef9afce45a61a02970462b829bf37a845948c17d72577dc70c1c21aa55b23
Threat Level: Known bad
The file NEAS.640ef9afce45a61a02970462b829bf37a845948c17d72577dc70c1c21aa55b23.url was found to be: Known bad.
Malicious Activity Summary
SystemBC
Blocklisted process makes network request
Checks computer location settings
Loads dropped DLL
Enumerates physical storage devices
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of FindShellTrayWindow
Modifies registry class
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-11-17 16:36
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2023-11-17 16:36
Reported
2023-11-17 16:39
Platform
win7-20231025-en
Max time kernel
117s
Max time network
120s
Command Line
Signatures
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\rundll32.exe | N/A |
Processes
C:\Windows\System32\rundll32.exe
"C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\NEAS.640ef9afce45a61a02970462b829bf37a845948c17d72577dc70c1c21aa55b23.url
Network
Files
memory/2236-0-0x0000000002170000-0x0000000002171000-memory.dmp
memory/2236-1-0x0000000002170000-0x0000000002171000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-11-17 16:36
Reported
2023-11-17 16:39
Platform
win10v2004-20231023-en
Max time kernel
135s
Max time network
154s
Command Line
Signatures
SystemBC
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000\Control Panel\International\Geo\Nation | C:\Windows\System32\rundll32.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\rundll32.exe | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-3125601242-331447593-1512828465-1000_Classes\Local Settings | C:\Windows\System32\rundll32.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4320 wrote to memory of 4164 | N/A | C:\Windows\System32\rundll32.exe | C:\Windows\System32\control.exe |
| PID 4320 wrote to memory of 4164 | N/A | C:\Windows\System32\rundll32.exe | C:\Windows\System32\control.exe |
| PID 4164 wrote to memory of 448 | N/A | C:\Windows\System32\control.exe | C:\Windows\system32\rundll32.exe |
| PID 4164 wrote to memory of 448 | N/A | C:\Windows\System32\control.exe | C:\Windows\system32\rundll32.exe |
| PID 448 wrote to memory of 2036 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 448 wrote to memory of 2036 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 448 wrote to memory of 2036 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\System32\rundll32.exe
"C:\Windows\System32\rundll32.exe" "C:\Windows\System32\ieframe.dll",OpenURL C:\Users\Admin\AppData\Local\Temp\NEAS.640ef9afce45a61a02970462b829bf37a845948c17d72577dc70c1c21aa55b23.url
C:\Windows\System32\control.exe
"C:\Windows\System32\control.exe" "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\E51EX1F6\wizard[1].cpl",
C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" Shell32.dll,Control_RunDLL "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\E51EX1F6\wizard[1].cpl",
C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\SysWOW64\rundll32.exe" "C:\Windows\SysWOW64\shell32.dll",#44 "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\E51EX1F6\wizard[1].cpl",
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| RU | 62.173.141.118:445 | tcp | |
| US | 8.8.8.8:53 | 1.202.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 69.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 118.141.173.62.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.1.85.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 158.240.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 65.252.72.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.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 | 8.8.8.8:53 | 59.128.231.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| RU | 62.173.140.37:4001 | tcp | |
| US | 8.8.8.8:53 | 37.140.173.62.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.173.189.20.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\E51EX1F6\wizard[1].cpl
| MD5 | cac81707eba1be452f548e410275a0ac |
| SHA1 | dd4b3bbd8bf357bbdeeb593e94ff0bf9b5ae19f2 |
| SHA256 | 2f120d396f71ff9adb8fe11f0b529e8ddea8355837d955fed83bb0ae2a35de84 |
| SHA512 | 01b6b45ec3c5ef4a0162164dfd69c15b08ed37082778ef97d0f1486bc82b4b1659a90705a4d9be42b9d25c8776e20011845a9f5e4498400b11cf14a3310df8d7 |
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\E51EX1F6\wizard[1].cpl
| MD5 | cac81707eba1be452f548e410275a0ac |
| SHA1 | dd4b3bbd8bf357bbdeeb593e94ff0bf9b5ae19f2 |
| SHA256 | 2f120d396f71ff9adb8fe11f0b529e8ddea8355837d955fed83bb0ae2a35de84 |
| SHA512 | 01b6b45ec3c5ef4a0162164dfd69c15b08ed37082778ef97d0f1486bc82b4b1659a90705a4d9be42b9d25c8776e20011845a9f5e4498400b11cf14a3310df8d7 |