Analysis Overview
SHA256
ffa38121ce884376872a6ee925945e2c7ae39ecedd04ba3c52938d6241956456
Threat Level: Known bad
The file rete.zip was found to be: Known bad.
Malicious Activity Summary
SystemBC
Blocklisted process makes network request
Loads dropped DLL
Checks computer location settings
Enumerates physical storage devices
Suspicious behavior: GetForegroundWindowSpam
Modifies registry class
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-11-20 13:14
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2023-11-20 13:14
Reported
2023-11-20 13:16
Platform
win7-20231023-en
Max time kernel
118s
Max time network
121s
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\Agenzia_Entrate.url
Network
Files
memory/2796-0-0x0000000001D20000-0x0000000001D21000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2023-11-20 13:14
Reported
2023-11-20 13:16
Platform
win10v2004-20231023-en
Max time kernel
139s
Max time network
156s
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-1-5-21-2231940048-779848787-2990559741-1000\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-1-5-21-2231940048-779848787-2990559741-1000_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 4216 wrote to memory of 2748 | N/A | C:\Windows\System32\rundll32.exe | C:\Windows\System32\control.exe |
| PID 4216 wrote to memory of 2748 | N/A | C:\Windows\System32\rundll32.exe | C:\Windows\System32\control.exe |
| PID 2748 wrote to memory of 1640 | N/A | C:\Windows\System32\control.exe | C:\Windows\system32\rundll32.exe |
| PID 2748 wrote to memory of 1640 | N/A | C:\Windows\System32\control.exe | C:\Windows\system32\rundll32.exe |
| PID 1640 wrote to memory of 260 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1640 wrote to memory of 260 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 1640 wrote to memory of 260 | 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\Agenzia_Entrate.url
C:\Windows\System32\control.exe
"C:\Windows\System32\control.exe" "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\5T0U3BIO\config[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\5T0U3BIO\config[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\5T0U3BIO\config[1].cpl",
Network
| Country | Destination | Domain | Proto |
| RU | 62.173.141.118:445 | tcp | |
| US | 8.8.8.8:53 | 118.141.173.62.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.136.104.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 158.240.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 146.78.124.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.252.72.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.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 | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| 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 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 84.65.42.20.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\5T0U3BIO\config[1].cpl
| MD5 | 509b68725e595b30fb2f38c8ea2cf9c4 |
| SHA1 | 1aff17b87ff213c1a8f4c8cfe48782e636b6fb32 |
| SHA256 | 4dae3b84eeb5e36c144f9fad2f2b06d9e82381cda6b1f043033cf3644f339558 |
| SHA512 | dc7a8e6404c3b1e2600c16c66ed023e6e5f7010efa96fa2c4c5abf8fe4a8c4847abd133a1198d4bb12224c93d4ede1ef1dfe1c6c584749160e9beff2a1585389 |
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\5T0U3BIO\config[1].cpl
| MD5 | 509b68725e595b30fb2f38c8ea2cf9c4 |
| SHA1 | 1aff17b87ff213c1a8f4c8cfe48782e636b6fb32 |
| SHA256 | 4dae3b84eeb5e36c144f9fad2f2b06d9e82381cda6b1f043033cf3644f339558 |
| SHA512 | dc7a8e6404c3b1e2600c16c66ed023e6e5f7010efa96fa2c4c5abf8fe4a8c4847abd133a1198d4bb12224c93d4ede1ef1dfe1c6c584749160e9beff2a1585389 |
memory/260-6-0x0000000002310000-0x0000000002419000-memory.dmp
memory/260-7-0x00000000007F0000-0x00000000007F7000-memory.dmp