Analysis Overview
SHA256
779e0c6f4e300d834bdbc3bf17ce53a4cbd9701850e291967aad5219a643b658
Threat Level: Shows suspicious behavior
The file 0249fbe699f6cc74540a4c6a818f6010_JaffaCakes118 was found to be: Shows suspicious behavior.
Malicious Activity Summary
Installs/modifies Browser Helper Object
Unsigned PE
Modifies Internet Explorer settings
Modifies registry class
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-22 13:09
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-22 13:09
Reported
2024-06-22 13:12
Platform
win10v2004-20240508-en
Max time kernel
51s
Max time network
51s
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\{81CD5BDF-5ED7-44A5-9719-BE148AC39922} | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Modifies Internet Explorer settings
| Description | Indicator | Process | Target |
| Set value (data) | \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Default = df5bcd81d75ea5449719be148ac39922 | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81CD5BDF-5ED7-44A5-9719-BE148AC39922} | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81CD5BDF-5ED7-44A5-9719-BE148AC39922}\InprocServer32 | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81CD5BDF-5ED7-44A5-9719-BE148AC39922}\InprocServer32\ | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{81CD5BDF-5ED7-44A5-9719-BE148AC39922}\InprocServer32\ThreadingModel = "Both" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3580 wrote to memory of 4876 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 3580 wrote to memory of 4876 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 3580 wrote to memory of 4876 | 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\0249fbe699f6cc74540a4c6a818f6010_JaffaCakes118.dll
C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\0249fbe699f6cc74540a4c6a818f6010_JaffaCakes118.dll
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
Files
memory/4876-0-0x0000000000400000-0x0000000000421000-memory.dmp
memory/4876-1-0x0000000010000000-0x000000001001D000-memory.dmp
memory/4876-2-0x0000000000400000-0x0000000000421000-memory.dmp
memory/4876-3-0x0000000010000000-0x000000001001D000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-22 13:09
Reported
2024-06-22 13:12
Platform
win7-20240508-en
Max time kernel
119s
Max time network
119s
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\{34F7C845-A771-4E05-86C7-CC16E3F4F4Fc} | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Modifies Internet Explorer settings
| Description | Indicator | Process | Target |
| Set value (data) | \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Internet Explorer\Main\Default = 45c8f73471a7054e86c7cc16e3f4f4fc | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{34F7C845-A771-4E05-86C7-CC16E3F4F4Fc} | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{34F7C845-A771-4E05-86C7-CC16E3F4F4Fc}\InprocServer32 | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{34F7C845-A771-4E05-86C7-CC16E3F4F4Fc}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0249fbe699f6cc74540a4c6a818f6010_JaffaCakes118.dll" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{34F7C845-A771-4E05-86C7-CC16E3F4F4Fc}\InprocServer32\ThreadingModel = "Both" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1036 wrote to memory of 2232 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1036 wrote to memory of 2232 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1036 wrote to memory of 2232 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1036 wrote to memory of 2232 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1036 wrote to memory of 2232 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1036 wrote to memory of 2232 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1036 wrote to memory of 2232 | 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\0249fbe699f6cc74540a4c6a818f6010_JaffaCakes118.dll
C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\0249fbe699f6cc74540a4c6a818f6010_JaffaCakes118.dll
Network
Files
memory/2232-0-0x0000000000190000-0x00000000001B1000-memory.dmp
memory/2232-1-0x0000000010000000-0x000000001001D000-memory.dmp
memory/2232-3-0x0000000000190000-0x00000000001B1000-memory.dmp
memory/2232-4-0x0000000010000000-0x000000001001D000-memory.dmp