Analysis Overview
SHA256
f00675143092001126ddd1dafffd8a9e380486fb76eea79be6c60a2ee2c18f73
Threat Level: Known bad
The file ef871484b732d48892906e83df50bbe7_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Modifies firewall policy service
Installs/modifies Browser Helper Object
Drops file in System32 directory
Suspicious use of SetThreadContext
Unsigned PE
Modifies Internet Explorer settings
Modifies registry class
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-14 21:16
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-14 21:16
Reported
2024-04-14 21:19
Platform
win7-20240221-en
Max time kernel
120s
Max time network
125s
Command Line
Signatures
Modifies firewall policy service
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Program Files\Internet Explorer\IEXPLORE.EXE = "C:\\Program Files\\Internet Explorer\\IEXPLORE.EXE:*:Enabled:Internet Explorer" | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_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\{36DBC179-A19F-48F2-B16A-6A3E19B42A87} | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\ipv6monl.dll | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\ipv6monl.dll | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1612 set thread context of 2348 | N/A | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe |
Modifies Internet Explorer settings
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Internet Explorer\Main\Enable Browser Extensions = "yes" | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{36DBC179-A19F-48F2-B16A-6A3E19B42A87} | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{36DBC179-A19F-48F2-B16A-6A3E19B42A87} | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{36DBC179-A19F-48F2-B16A-6A3E19B42A87}\InprocServer32 | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{36DBC179-A19F-48F2-B16A-6A3E19B42A87}\InprocServer32\ = "C:\\Windows\\SysWow64\\ipv6monl.dll" | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{36DBC179-A19F-48F2-B16A-6A3E19B42A87}\InprocServer32\ThreadingModel = "apartment" | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe
Network
Files
memory/2348-0-0x0000000000400000-0x0000000000419000-memory.dmp
memory/2348-1-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2348-3-0x0000000000400000-0x0000000000419000-memory.dmp
memory/1612-4-0x0000000013140000-0x0000000013161000-memory.dmp
memory/2348-6-0x0000000000400000-0x0000000000419000-memory.dmp
memory/2348-7-0x0000000000400000-0x0000000000419000-memory.dmp
memory/2348-10-0x0000000000400000-0x0000000000419000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-14 21:16
Reported
2024-04-14 21:19
Platform
win10v2004-20240226-en
Max time kernel
145s
Max time network
157s
Command Line
Signatures
Modifies firewall policy service
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
| Key created | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Program Files\Internet Explorer\IEXPLORE.EXE = "C:\\Program Files\\Internet Explorer\\IEXPLORE.EXE:*:Enabled:Internet Explorer" | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_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\{36DBC179-A19F-48F2-B16A-6A3E19B42A87} | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\ipv6monl.dll | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\ipv6monl.dll | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1072 set thread context of 2296 | N/A | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe |
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\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\AppID\{36DBC179-A19F-48F2-B16A-6A3E19B42A87} | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{36DBC179-A19F-48F2-B16A-6A3E19B42A87} | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{36DBC179-A19F-48F2-B16A-6A3E19B42A87}\InprocServer32 | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{36DBC179-A19F-48F2-B16A-6A3E19B42A87}\InprocServer32\ = "C:\\Windows\\SysWow64\\ipv6monl.dll" | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{36DBC179-A19F-48F2-B16A-6A3E19B42A87}\InprocServer32\ThreadingModel = "apartment" | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\ef871484b732d48892906e83df50bbe7_JaffaCakes118.exe
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=1424 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 249.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.197.17.2.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 | 142.250.187.234:443 | chromewebstore.googleapis.com | tcp |
| US | 8.8.8.8:53 | 234.187.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.173.189.20.in-addr.arpa | udp |
Files
memory/2296-0-0x0000000000400000-0x0000000000419000-memory.dmp
memory/1072-1-0x0000000013140000-0x0000000013161000-memory.dmp
memory/2296-3-0x0000000000400000-0x0000000000419000-memory.dmp
memory/2296-4-0x0000000000400000-0x0000000000419000-memory.dmp
memory/2296-7-0x0000000000400000-0x0000000000419000-memory.dmp