Analysis Overview
SHA256
0d47f6aafacdd1eeb046702a8f0df34b27b21cbbd41e91c48393fa9b512b2de5
Threat Level: Shows suspicious behavior
The file f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118 was found to be: Shows suspicious behavior.
Malicious Activity Summary
Deletes itself
Checks computer location settings
Installs/modifies Browser Helper Object
Drops file in System32 directory
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Modifies Internet Explorer settings
Modifies registry class
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-15 04:49
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-15 04:49
Reported
2024-04-15 04:51
Platform
win7-20240220-en
Max time kernel
119s
Max time network
120s
Command Line
Signatures
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.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 | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{63845B64-69B6-4b9a-9461-C59B2AFDC0A9} | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\vgf32.dll | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
| File created | C:\Windows\SysWOW64\dl.txt | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
Modifies Internet Explorer settings
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Internet Explorer\Main\Enable Browser Extensions = "yes" | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{63845B64-69B6-4b9a-9461-C59B2AFDC0A9}\TypeLib\ = "{957C5424-4C33-4dbf-84E7-6FBC03400E49}" | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{63845B64-69B6-4b9a-9461-C59B2AFDC0A9}\InprocServer32 | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{63845B64-69B6-4b9a-9461-C59B2AFDC0A9}\InprocServer32\ = "vgf32.dll" | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{63845B64-69B6-4b9a-9461-C59B2AFDC0A9}\ProgID\ = "Jmc" | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{63845B64-69B6-4b9a-9461-C59B2AFDC0A9}\TypeLib | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{63845B64-69B6-4b9a-9461-C59B2AFDC0A9} | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{63845B64-69B6-4b9a-9461-C59B2AFDC0A9}\ = "Google plugin" | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{63845B64-69B6-4b9a-9461-C59B2AFDC0A9}\InprocServer32\ThreadingModel = "Apartment" | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{63845B64-69B6-4b9a-9461-C59B2AFDC0A9}\ProgID | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2240 wrote to memory of 2120 | N/A | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2240 wrote to memory of 2120 | N/A | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2240 wrote to memory of 2120 | N/A | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2240 wrote to memory of 2120 | N/A | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\F05861~1.EXE >> NUL
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-15 04:49
Reported
2024-04-15 04:52
Platform
win10v2004-20240412-en
Max time kernel
149s
Max time network
152s
Command Line
Signatures
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.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 | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{63845B64-69B6-4b9a-9461-C59B2AFDC0A9} | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\dl.txt | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
| File created | C:\Windows\SysWOW64\vgf32.dll | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
Modifies Internet Explorer settings
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-355664440-2199602304-1223909400-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Enable Browser Extensions = "yes" | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63845B64-69B6-4b9a-9461-C59B2AFDC0A9} | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63845B64-69B6-4b9a-9461-C59B2AFDC0A9}\InprocServer32 | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63845B64-69B6-4b9a-9461-C59B2AFDC0A9}\InprocServer32\ = "vgf32.dll" | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63845B64-69B6-4b9a-9461-C59B2AFDC0A9}\ProgID | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63845B64-69B6-4b9a-9461-C59B2AFDC0A9}\TypeLib | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63845B64-69B6-4b9a-9461-C59B2AFDC0A9}\ = "Google plugin" | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63845B64-69B6-4b9a-9461-C59B2AFDC0A9}\InprocServer32\ThreadingModel = "Apartment" | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63845B64-69B6-4b9a-9461-C59B2AFDC0A9}\ProgID\ = "Jmc" | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{63845B64-69B6-4b9a-9461-C59B2AFDC0A9}\TypeLib\ = "{957C5424-4C33-4dbf-84E7-6FBC03400E49}" | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1604 wrote to memory of 3816 | N/A | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1604 wrote to memory of 3816 | N/A | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1604 wrote to memory of 3816 | N/A | C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f05861ac21f1c73d85d1ce15de6acbf8_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\F05861~1.EXE >> NUL
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 73.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.114.53.23.in-addr.arpa | udp |
| NL | 23.62.61.97:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 97.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 65.139.73.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 36.56.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 101.58.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.79.70.13.in-addr.arpa | udp |