Analysis Overview
SHA256
1e69d355dd8393dead16a09915b4733175d083860da3a04ad87e0182a636fc14
Threat Level: Shows suspicious behavior
The file f13d983a16ae706c9cbc6a89d58271e2_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
2024-04-15 14:06
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-15 14:06
Reported
2024-04-15 14:08
Platform
win7-20231129-en
Max time kernel
121s
Max time network
123s
Command Line
Signatures
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\{5a8e08ac-6bf5-74ef-9d80-b09eba3f3238} = "C:\\Windows\\System32\\Rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\f13d983a16ae706c9cbc6a89d58271e2_JaffaCakes118.dll\" DllStub" | 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\{138a68b4-dafb-6de6-8285-a921b63bdedc} | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{138a68b4-dafb-6de6-8285-a921b63bdedc}\NoExplorer = "\"\"" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{138a68b4-dafb-6de6-8285-a921b63bdedc}\InProcServer32\ThreadingModel = "Apartment" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{138a68b4-dafb-6de6-8285-a921b63bdedc} | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{138a68b4-dafb-6de6-8285-a921b63bdedc}\ = "agadoo browser enhancer" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{138a68b4-dafb-6de6-8285-a921b63bdedc}\InProcServer32 | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{138a68b4-dafb-6de6-8285-a921b63bdedc}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f13d983a16ae706c9cbc6a89d58271e2_JaffaCakes118.dll" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2996 wrote to memory of 1248 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2996 wrote to memory of 1248 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2996 wrote to memory of 1248 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2996 wrote to memory of 1248 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2996 wrote to memory of 1248 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2996 wrote to memory of 1248 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 2996 wrote to memory of 1248 | 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\f13d983a16ae706c9cbc6a89d58271e2_JaffaCakes118.dll
C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\f13d983a16ae706c9cbc6a89d58271e2_JaffaCakes118.dll
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-15 14:06
Reported
2024-04-15 14:08
Platform
win10v2004-20240412-en
Max time kernel
93s
Max time network
114s
Command Line
Signatures
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\{0ca695cd-9d5d-84ca-c63c-03dc7372ee68} = "C:\\Windows\\System32\\Rundll32.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\f13d983a16ae706c9cbc6a89d58271e2_JaffaCakes118.dll\" DllStub" | 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\{54957b8e-1b02-022e-af41-3f25a172ebf8} | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{54957b8e-1b02-022e-af41-3f25a172ebf8}\NoExplorer = "\"\"" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{54957b8e-1b02-022e-af41-3f25a172ebf8} | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{54957b8e-1b02-022e-af41-3f25a172ebf8}\ = "agadoo browser enhancer" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{54957b8e-1b02-022e-af41-3f25a172ebf8}\InProcServer32 | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{54957b8e-1b02-022e-af41-3f25a172ebf8}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f13d983a16ae706c9cbc6a89d58271e2_JaffaCakes118.dll" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{54957b8e-1b02-022e-af41-3f25a172ebf8}\InProcServer32\ThreadingModel = "Apartment" | C:\Windows\SysWOW64\regsvr32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4348 wrote to memory of 4004 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 4348 wrote to memory of 4004 | N/A | C:\Windows\system32\regsvr32.exe | C:\Windows\SysWOW64\regsvr32.exe |
| PID 4348 wrote to memory of 4004 | 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\f13d983a16ae706c9cbc6a89d58271e2_JaffaCakes118.dll
C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\f13d983a16ae706c9cbc6a89d58271e2_JaffaCakes118.dll
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 21.53.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| NL | 23.62.61.72:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 240.143.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 205.47.74.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.114.53.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.143.109.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |