Analysis Overview
SHA256
4c7ee81dc0968710f1b7c0368d501216e0bb1189ddf70483997aef46ab56988d
Threat Level: Known bad
The file 3f1a620f0fda6d8f7f62a458a887178d_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Modifies WinLogon for persistence
UAC bypass
UPX packed file
Unsigned PE
Enumerates physical storage devices
System policy modification
Modifies registry class
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-13 10:46
Signatures
UPX packed file
| 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
2024-05-13 10:46
Reported
2024-05-13 10:48
Platform
win7-20231129-en
Max time kernel
119s
Max time network
121s
Command Line
Signatures
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\system32\\userinit.exe,\"C:\\Users\\Admin\\AppData\\Local\\stP2ecXZAz\\DEQVNMxjbG.exe\" -s" | C:\Users\Admin\AppData\Local\Temp\3f1a620f0fda6d8f7f62a458a887178d_JaffaCakes118.exe | N/A |
UAC bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" | C:\Users\Admin\AppData\Local\Temp\3f1a620f0fda6d8f7f62a458a887178d_JaffaCakes118.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
System policy modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" | C:\Users\Admin\AppData\Local\Temp\3f1a620f0fda6d8f7f62a458a887178d_JaffaCakes118.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\3f1a620f0fda6d8f7f62a458a887178d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3f1a620f0fda6d8f7f62a458a887178d_JaffaCakes118.exe"
Network
| Country | Destination | Domain | Proto |
| N/A | 127.0.0.1:1865 | tcp |
Files
memory/2368-0-0x0000000000400000-0x000000000090F000-memory.dmp
memory/2368-1-0x00000000001C0000-0x00000000001C1000-memory.dmp
memory/2368-6-0x0000000000400000-0x000000000090F000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-13 10:46
Reported
2024-05-13 10:48
Platform
win10v2004-20240426-en
Max time kernel
150s
Max time network
153s
Command Line
Signatures
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "C:\\Windows\\system32\\userinit.exe,\"C:\\Users\\Admin\\AppData\\Local\\stP2ecXZAz\\DEQVNMxjbG.exe\" -s" | C:\Users\Admin\AppData\Local\Temp\3f1a620f0fda6d8f7f62a458a887178d_JaffaCakes118.exe | N/A |
UAC bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" | C:\Users\Admin\AppData\Local\Temp\3f1a620f0fda6d8f7f62a458a887178d_JaffaCakes118.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000_Classes\Local Settings | C:\Users\Admin\AppData\Local\Temp\3f1a620f0fda6d8f7f62a458a887178d_JaffaCakes118.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000_Classes\Local Settings | C:\Windows\system32\OpenWith.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\OpenWith.exe | N/A |
System policy modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" | C:\Users\Admin\AppData\Local\Temp\3f1a620f0fda6d8f7f62a458a887178d_JaffaCakes118.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\3f1a620f0fda6d8f7f62a458a887178d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3f1a620f0fda6d8f7f62a458a887178d_JaffaCakes118.exe"
C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| N/A | 127.0.0.1:1865 | tcp | |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| NL | 23.62.61.113:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 113.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.159.190.20.in-addr.arpa | udp |
| NL | 23.62.61.113:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 142.53.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | udp |
Files
memory/512-0-0x0000000000400000-0x000000000090F000-memory.dmp
memory/512-1-0x0000000000970000-0x0000000000971000-memory.dmp
memory/512-6-0x0000000000400000-0x000000000090F000-memory.dmp