Analysis Overview
SHA256
b3748662638def24fb913047823d8053c23c33c7085924d39787e5e7068d74c6
Threat Level: Shows suspicious behavior
The file 03bc1d04f70e19bb81c708d76e691980_JaffaCakes118 was found to be: Shows suspicious behavior.
Malicious Activity Summary
Adds Run key to start application
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
2024-06-20 06:43
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-20 06:43
Reported
2024-06-20 06:45
Platform
win7-20240221-en
Max time kernel
118s
Max time network
119s
Command Line
Signatures
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\lfmssgagra = "C:\\Windows\\System32\\Rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\03bc1d04f70e19bb81c708d76e691980_JaffaCakes118.dll\" EntryPoint" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Installs/modifies Browser Helper Object
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{3a763d55-20ab-c7db-48a7-8d8f487a7866} | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{3a763d55-20ab-c7db-48a7-8d8f487a7866}\NoExplorer = "\"\"" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3a763d55-20ab-c7db-48a7-8d8f487a7866} | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3a763d55-20ab-c7db-48a7-8d8f487a7866}\ = "agadoo browser enhancer" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3a763d55-20ab-c7db-48a7-8d8f487a7866}\InProcServer32 | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3a763d55-20ab-c7db-48a7-8d8f487a7866}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\03bc1d04f70e19bb81c708d76e691980_JaffaCakes118.dll" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{3a763d55-20ab-c7db-48a7-8d8f487a7866}\InProcServer32\ThreadingModel = "Apartment" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1584 wrote to memory of 2188 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1584 wrote to memory of 2188 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1584 wrote to memory of 2188 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1584 wrote to memory of 2188 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1584 wrote to memory of 2188 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1584 wrote to memory of 2188 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 1584 wrote to memory of 2188 | 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\03bc1d04f70e19bb81c708d76e691980_JaffaCakes118.dll
C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\03bc1d04f70e19bb81c708d76e691980_JaffaCakes118.dll
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-20 06:43
Reported
2024-06-20 06:45
Platform
win10v2004-20240508-en
Max time kernel
147s
Max time network
151s
Command Line
Signatures
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\vbzfbcrqvuotrmed = "C:\\Windows\\System32\\Rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\03bc1d04f70e19bb81c708d76e691980_JaffaCakes118.dll\" EntryPoint" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Installs/modifies Browser Helper Object
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{cdf5354e-e1ca-a049-6389-e8b14bfeba91} | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{cdf5354e-e1ca-a049-6389-e8b14bfeba91}\NoExplorer = "\"\"" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{cdf5354e-e1ca-a049-6389-e8b14bfeba91}\ = "agadoo browser enhancer" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{cdf5354e-e1ca-a049-6389-e8b14bfeba91}\InProcServer32 | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{cdf5354e-e1ca-a049-6389-e8b14bfeba91}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\03bc1d04f70e19bb81c708d76e691980_JaffaCakes118.dll" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{cdf5354e-e1ca-a049-6389-e8b14bfeba91}\InProcServer32\ThreadingModel = "Apartment" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{cdf5354e-e1ca-a049-6389-e8b14bfeba91} | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4372 wrote to memory of 4404 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 4372 wrote to memory of 4404 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 4372 wrote to memory of 4404 | 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\03bc1d04f70e19bb81c708d76e691980_JaffaCakes118.dll
C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\03bc1d04f70e19bb81c708d76e691980_JaffaCakes118.dll
Network
| Country | Destination | Domain | Proto |
| NL | 52.142.223.178:80 | tcp |