Analysis Overview
SHA256
a8bd5abeab9c337ee4aa8f0b47f073838bd7a7e37ca0a57b87a0daa63e610a86
Threat Level: Shows suspicious behavior
The file 8fc9c8b8023d87ef168753346bc69093 was found to be: Shows suspicious behavior.
Malicious Activity Summary
Installs/modifies Browser Helper Object
Unsigned PE
Modifies registry class
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-02-04 17:57
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-02-04 17:57
Reported
2024-02-04 17:59
Platform
win7-20231215-en
Max time kernel
118s
Max time network
121s
Command Line
Signatures
Installs/modifies Browser Helper Object
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{CC01FC6C-C646-316D-3AAD-4C8D7B443532} | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\8fc9c8b8023d87ef168753346bc69093.iwc | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-C646-316D-3AAD-4C8D7B443532}\ProgID\ = "8fc9c8b8023d87ef168753346bc69093.iwc" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-C646-316D-3AAD-4C8D7B443532}\InprocServer32 | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-C646-316D-3AAD-4C8D7B443532}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8fc9c8b8023d87ef168753346bc69093.dll" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-C646-316D-3AAD-4C8D7B443532}\InprocServer32\ThreadingModel = "Apartment" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\8fc9c8b8023d87ef168753346bc69093.iwc\Clsid | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\8fc9c8b8023d87ef168753346bc69093.iwc\Clsid\ = "{CC01FC6C-C646-316D-3AAD-4C8D7B443532}" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-C646-316D-3AAD-4C8D7B443532}\ProgID | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-C646-316D-3AAD-4C8D7B443532} | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CC01FC6C-C646-316D-3AAD-4C8D7B443532}\ = "iwc" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\8fc9c8b8023d87ef168753346bc69093.iwc\ = "iwc" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2340 wrote to memory of 2916 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2340 wrote to memory of 2916 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2340 wrote to memory of 2916 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2340 wrote to memory of 2916 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2340 wrote to memory of 2916 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2340 wrote to memory of 2916 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2340 wrote to memory of 2916 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
Processes
C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\8fc9c8b8023d87ef168753346bc69093.dll
C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\8fc9c8b8023d87ef168753346bc69093.dll
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-02-04 17:57
Reported
2024-02-04 17:59
Platform
win10v2004-20231222-en
Max time kernel
145s
Max time network
146s
Command Line
Signatures
Installs/modifies Browser Helper Object
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{CC01FC6C-C646-316D-3AAD-4C8D7B443532} | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-C646-316D-3AAD-4C8D7B443532} | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-C646-316D-3AAD-4C8D7B443532}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8fc9c8b8023d87ef168753346bc69093.dll" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-C646-316D-3AAD-4C8D7B443532}\InprocServer32\ThreadingModel = "Apartment" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\8fc9c8b8023d87ef168753346bc69093.iwc\ = "iwc" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\8fc9c8b8023d87ef168753346bc69093.iwc\Clsid\ = "{CC01FC6C-C646-316D-3AAD-4C8D7B443532}" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-C646-316D-3AAD-4C8D7B443532}\ = "iwc" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-C646-316D-3AAD-4C8D7B443532}\InprocServer32 | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\8fc9c8b8023d87ef168753346bc69093.iwc | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\8fc9c8b8023d87ef168753346bc69093.iwc\Clsid | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-C646-316D-3AAD-4C8D7B443532}\ProgID | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{CC01FC6C-C646-316D-3AAD-4C8D7B443532}\ProgID\ = "8fc9c8b8023d87ef168753346bc69093.iwc" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 944 wrote to memory of 3200 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 944 wrote to memory of 3200 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 944 wrote to memory of 3200 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
Processes
C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\8fc9c8b8023d87ef168753346bc69093.dll
C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\8fc9c8b8023d87ef168753346bc69093.dll
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 181.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 193.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.173.189.20.in-addr.arpa | udp |
Files
memory/3200-0-0x0000000001E50000-0x0000000001EED000-memory.dmp