Analysis Overview
SHA256
adb39591aed0c681c151efebb147729edd52a8b67bad14a3d1f1635fd45ec4ac
Threat Level: Shows suspicious behavior
The file 0452ca3a273127a940c491a87806b047_JaffaCakes118 was found to be: Shows suspicious behavior.
Malicious Activity Summary
ASPack v2.12-2.42
Writes to the Master Boot Record (MBR)
Unsigned PE
Modifies registry class
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-22 23:09
Signatures
ASPack v2.12-2.42
| 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
2024-06-22 23:09
Reported
2024-06-22 23:12
Platform
win7-20240508-en
Max time kernel
120s
Max time network
120s
Command Line
Signatures
Writes to the Master Boot Record (MBR)
| Description | Indicator | Process | Target |
| File opened for modification | \??\PhysicalDrive0 | C:\Windows\SysWOW64\rundll32.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\.key | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile" | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2392 wrote to memory of 1916 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2392 wrote to memory of 1916 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2392 wrote to memory of 1916 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2392 wrote to memory of 1916 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2392 wrote to memory of 1916 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2392 wrote to memory of 1916 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 2392 wrote to memory of 1916 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0452ca3a273127a940c491a87806b047_JaffaCakes118.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0452ca3a273127a940c491a87806b047_JaffaCakes118.dll,#1
Network
Files
memory/1916-0-0x0000000010000000-0x0000000010032000-memory.dmp
memory/1916-1-0x0000000010000000-0x0000000010032000-memory.dmp
memory/1916-2-0x000000001000D000-0x000000001000E000-memory.dmp
memory/1916-3-0x0000000010000000-0x0000000010032000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-22 23:09
Reported
2024-06-22 23:12
Platform
win10v2004-20240508-en
Max time kernel
147s
Max time network
150s
Command Line
Signatures
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\.key | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ | C:\Windows\SysWOW64\rundll32.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile" | C:\Windows\SysWOW64\rundll32.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4864 wrote to memory of 4472 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4864 wrote to memory of 4472 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
| PID 4864 wrote to memory of 4472 | N/A | C:\Windows\system32\rundll32.exe | C:\Windows\SysWOW64\rundll32.exe |
Processes
C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0452ca3a273127a940c491a87806b047_JaffaCakes118.dll,#1
C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0452ca3a273127a940c491a87806b047_JaffaCakes118.dll,#1
Network
| Country | Destination | Domain | Proto |
| US | 23.53.113.159:80 | tcp |
Files
memory/4472-0-0x0000000010000000-0x0000000010032000-memory.dmp
memory/4472-1-0x0000000002100000-0x0000000002135000-memory.dmp
memory/4472-2-0x0000000002300000-0x0000000002301000-memory.dmp
memory/4472-3-0x0000000002310000-0x0000000002311000-memory.dmp
memory/4472-4-0x00000000022F0000-0x00000000022F1000-memory.dmp