Analysis Overview
SHA256
1ed5f4de5aed127695d8471920deed6d2ea4e49ab0929a6c12e80b2f39700342
Threat Level: Known bad
The file JaffaCakes118_08202156a8ba4882cdbd1ee171115c52 was found to be: Known bad.
Malicious Activity Summary
Detects Mofksys worm
Mofksys family
Drops file in System32 directory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Modifies registry class
MITRE ATT&CK
Enterprise Matrix V16
Analysis: static1
Detonation Overview
Reported
2025-05-23 17:30
Signatures
Detects Mofksys worm
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Mofksys family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-05-23 17:30
Reported
2025-05-23 17:33
Platform
win10v2004-20250502-en
Max time kernel
116s
Max time network
138s
Command Line
Signatures
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | \??\c:\windows\SysWOW64\explorer.exe | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_08202156a8ba4882cdbd1ee171115c52.exe | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_08202156a8ba4882cdbd1ee171115c52.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | \??\c:\windows\SysWOW64\explorer.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-343936533-1262634978-1863872812-1000_Classes\Local Settings | \??\c:\windows\SysWOW64\explorer.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_08202156a8ba4882cdbd1ee171115c52.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_08202156a8ba4882cdbd1ee171115c52.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1956 wrote to memory of 4044 | N/A | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_08202156a8ba4882cdbd1ee171115c52.exe | \??\c:\windows\SysWOW64\explorer.exe |
| PID 1956 wrote to memory of 4044 | N/A | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_08202156a8ba4882cdbd1ee171115c52.exe | \??\c:\windows\SysWOW64\explorer.exe |
| PID 1956 wrote to memory of 4044 | N/A | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_08202156a8ba4882cdbd1ee171115c52.exe | \??\c:\windows\SysWOW64\explorer.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_08202156a8ba4882cdbd1ee171115c52.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_08202156a8ba4882cdbd1ee171115c52.exe"
\??\c:\windows\SysWOW64\explorer.exe
c:\windows\system32\explorer.exe
Network
| Country | Destination | Domain | Proto |
| GB | 95.100.153.173:443 | www.bing.com | tcp |
| GB | 95.100.153.173:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | c.pki.goog | udp |
| FR | 216.58.213.67:80 | c.pki.goog | tcp |
| US | 8.8.8.8:53 | c.pki.goog | udp |
Files
Analysis: behavioral2
Detonation Overview
Submitted
2025-05-23 17:30
Reported
2025-05-23 17:33
Platform
win11-20250502-en
Max time kernel
103s
Max time network
104s
Command Line
Signatures
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | \??\c:\windows\SysWOW64\explorer.exe | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_08202156a8ba4882cdbd1ee171115c52.exe | N/A |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | \??\c:\windows\SysWOW64\explorer.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_08202156a8ba4882cdbd1ee171115c52.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-2117256398-1057710415-2142084777-1000_Classes\Local Settings | \??\c:\windows\SysWOW64\explorer.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_08202156a8ba4882cdbd1ee171115c52.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_08202156a8ba4882cdbd1ee171115c52.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2716 wrote to memory of 800 | N/A | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_08202156a8ba4882cdbd1ee171115c52.exe | \??\c:\windows\SysWOW64\explorer.exe |
| PID 2716 wrote to memory of 800 | N/A | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_08202156a8ba4882cdbd1ee171115c52.exe | \??\c:\windows\SysWOW64\explorer.exe |
| PID 2716 wrote to memory of 800 | N/A | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_08202156a8ba4882cdbd1ee171115c52.exe | \??\c:\windows\SysWOW64\explorer.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_08202156a8ba4882cdbd1ee171115c52.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_08202156a8ba4882cdbd1ee171115c52.exe"
\??\c:\windows\SysWOW64\explorer.exe
c:\windows\system32\explorer.exe