Analysis Overview
SHA256
203838012641f5c0f664a1ecc218fc55e65b7404e353d0a6f9de005f1f5a5877
Threat Level: Shows suspicious behavior
The file f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118 was found to be: Shows suspicious behavior.
Malicious Activity Summary
Checks computer location settings
Installs/modifies Browser Helper Object
Drops file in System32 directory
Unsigned PE
Program crash
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 13:01
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-15 13:01
Reported
2024-04-15 13:04
Platform
win7-20231129-en
Max time kernel
117s
Max time network
118s
Command Line
Signatures
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2268 wrote to memory of 804 | N/A | C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2268 wrote to memory of 804 | N/A | C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2268 wrote to memory of 804 | N/A | C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe | C:\Windows\SysWOW64\WerFault.exe |
| PID 2268 wrote to memory of 804 | N/A | C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe | C:\Windows\SysWOW64\WerFault.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2268 -s 44
Network
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-15 13:01
Reported
2024-04-15 13:04
Platform
win10v2004-20240226-en
Max time kernel
139s
Max time network
165s
Command Line
Signatures
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_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\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{4C579E8B-92F1-44d1-9444-66A4355E9386} | C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\conf.dat | C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe | N/A |
| File created | C:\Windows\SysWOW64\rozmchild.dll | C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
Modifies Internet Explorer settings
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Enable Browser Extensions = "yes" | C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4C579E8B-92F1-44d1-9444-66A4355E9386}\ = "Google Module" | C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4C579E8B-92F1-44d1-9444-66A4355E9386}\InprocServer32 | C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4C579E8B-92F1-44d1-9444-66A4355E9386}\InprocServer32\ = "rozmchild.dll" | C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4C579E8B-92F1-44d1-9444-66A4355E9386}\TypeLib\ = "{A78DE3EE-4D19-4096-81E1-A06B1E862B90}" | C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4C579E8B-92F1-44d1-9444-66A4355E9386} | C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4C579E8B-92F1-44d1-9444-66A4355E9386}\InprocServer32\ThreadingModel = "Apartment" | C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4C579E8B-92F1-44d1-9444-66A4355E9386}\ProgID | C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4C579E8B-92F1-44d1-9444-66A4355E9386}\ProgID\ = "RITLAB.1" | C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{4C579E8B-92F1-44d1-9444-66A4355E9386}\TypeLib | C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3684 wrote to memory of 2060 | N/A | C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3684 wrote to memory of 2060 | N/A | C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 3684 wrote to memory of 2060 | N/A | C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f11d371fc2be954fb7ec5e58006a3dfb_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\F11D37~1.EXE >> NUL
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1316 --field-trial-handle=2284,i,9807419199535700662,2319175108930815708,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 99.56.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 13.107.253.64:443 | tcp | |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 101.58.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| US | 8.8.8.8:53 | chromewebstore.googleapis.com | udp |
| GB | 142.250.200.10:443 | chromewebstore.googleapis.com | tcp |
| US | 8.8.8.8:53 | 10.200.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 25.173.189.20.in-addr.arpa | udp |