Analysis Overview
SHA256
d19ba74bc734005164966c6478b469f15144c6d5833370e8e3bb0d36a162e0ad
Threat Level: Shows suspicious behavior
The file efb6e28896a537555035f4cd6b9c463b_JaffaCakes118 was found to be: Shows suspicious behavior.
Malicious Activity Summary
ASPack v2.12-2.42
Installs/modifies Browser Helper Object
Unsigned PE
Suspicious use of WriteProcessMemory
Modifies registry class
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-14 23:01
Signatures
ASPack v2.12-2.42
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-14 23:01
Reported
2024-04-14 23:03
Platform
win7-20240221-en
Max time kernel
121s
Max time network
128s
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\{7EDA5F65-3547-4CCE-B9D0-96FFC105AC8B} | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{7EDA5F65-3547-4CCE-B9D0-96FFC105AC8B}\ | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\efb6e28896a537555035f4cd6b9c463b_JaffaCakes118.Conex\ | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\efb6e28896a537555035f4cd6b9c463b_JaffaCakes118.Conex\Clsid | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7EDA5F65-3547-4CCE-B9D0-96FFC105AC8B}\ProgID | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7EDA5F65-3547-4CCE-B9D0-96FFC105AC8B}\ | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7EDA5F65-3547-4CCE-B9D0-96FFC105AC8B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\efb6e28896a537555035f4cd6b9c463b_JaffaCakes118.dll" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7EDA5F65-3547-4CCE-B9D0-96FFC105AC8B}\InprocServer32\ThreadingModel = "Apartment" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\efb6e28896a537555035f4cd6b9c463b_JaffaCakes118.Conex | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7EDA5F65-3547-4CCE-B9D0-96FFC105AC8B} | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7EDA5F65-3547-4CCE-B9D0-96FFC105AC8B}\InprocServer32 | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\efb6e28896a537555035f4cd6b9c463b_JaffaCakes118.Conex\Clsid\ = "{7EDA5F65-3547-4CCE-B9D0-96FFC105AC8B}" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7EDA5F65-3547-4CCE-B9D0-96FFC105AC8B}\ProgID\ = "efb6e28896a537555035f4cd6b9c463b_JaffaCakes118.Conex" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2716 wrote to memory of 3052 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2716 wrote to memory of 3052 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2716 wrote to memory of 3052 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2716 wrote to memory of 3052 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2716 wrote to memory of 3052 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2716 wrote to memory of 3052 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2716 wrote to memory of 3052 | 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\efb6e28896a537555035f4cd6b9c463b_JaffaCakes118.dll
C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\efb6e28896a537555035f4cd6b9c463b_JaffaCakes118.dll
Network
Files
memory/3052-0-0x00000000143C0000-0x00000000144CE000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-14 23:01
Reported
2024-04-14 23:03
Platform
win10v2004-20240412-en
Max time kernel
147s
Max time network
156s
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\{7EDA5F65-3547-4CCE-B9D0-96FFC105AC8B} | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{7EDA5F65-3547-4CCE-B9D0-96FFC105AC8B}\ | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7EDA5F65-3547-4CCE-B9D0-96FFC105AC8B} | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7EDA5F65-3547-4CCE-B9D0-96FFC105AC8B}\InprocServer32 | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7EDA5F65-3547-4CCE-B9D0-96FFC105AC8B}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\efb6e28896a537555035f4cd6b9c463b_JaffaCakes118.dll" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\efb6e28896a537555035f4cd6b9c463b_JaffaCakes118.Conex | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\efb6e28896a537555035f4cd6b9c463b_JaffaCakes118.Conex\Clsid | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7EDA5F65-3547-4CCE-B9D0-96FFC105AC8B}\ProgID\ = "efb6e28896a537555035f4cd6b9c463b_JaffaCakes118.Conex" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7EDA5F65-3547-4CCE-B9D0-96FFC105AC8B}\ | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7EDA5F65-3547-4CCE-B9D0-96FFC105AC8B}\InprocServer32\ThreadingModel = "Apartment" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\efb6e28896a537555035f4cd6b9c463b_JaffaCakes118.Conex\ | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\efb6e28896a537555035f4cd6b9c463b_JaffaCakes118.Conex\Clsid\ = "{7EDA5F65-3547-4CCE-B9D0-96FFC105AC8B}" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{7EDA5F65-3547-4CCE-B9D0-96FFC105AC8B}\ProgID | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3432 wrote to memory of 5096 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 3432 wrote to memory of 5096 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 3432 wrote to memory of 5096 | 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\efb6e28896a537555035f4cd6b9c463b_JaffaCakes118.dll
C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\efb6e28896a537555035f4cd6b9c463b_JaffaCakes118.dll
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 72.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.114.53.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 65.139.73.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.173.189.20.in-addr.arpa | udp |
Files
memory/5096-0-0x00000000143C0000-0x00000000144CE000-memory.dmp
memory/5096-1-0x00000000011D0000-0x00000000011D1000-memory.dmp