Analysis Overview
SHA256
889b7f224acdc414ed35626c360b3120ad0acda018e313c5159d7b3de5badc82
Threat Level: Shows suspicious behavior
The file 18b8180b554a0ce58fec184b94445eef_JaffaCakes118 was found to be: Shows suspicious behavior.
Malicious Activity Summary
Deletes itself
Executes dropped EXE
VMProtect packed file
Drops file in System32 directory
Unsigned PE
Checks processor information in registry
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-28 04:05
Signatures
VMProtect 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
2024-06-28 04:05
Reported
2024-06-28 04:08
Platform
win7-20240611-en
Max time kernel
149s
Max time network
149s
Command Line
Signatures
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cmd.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\kkaaya.exe | N/A |
VMProtect packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\kkaaya.exe | C:\Users\Admin\AppData\Local\Temp\18b8180b554a0ce58fec184b94445eef_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\kkaaya.exe | C:\Users\Admin\AppData\Local\Temp\18b8180b554a0ce58fec184b94445eef_JaffaCakes118.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Windows\SysWOW64\kkaaya.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Windows\SysWOW64\kkaaya.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\18b8180b554a0ce58fec184b94445eef_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2140 wrote to memory of 2712 | N/A | C:\Users\Admin\AppData\Local\Temp\18b8180b554a0ce58fec184b94445eef_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2140 wrote to memory of 2712 | N/A | C:\Users\Admin\AppData\Local\Temp\18b8180b554a0ce58fec184b94445eef_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2140 wrote to memory of 2712 | N/A | C:\Users\Admin\AppData\Local\Temp\18b8180b554a0ce58fec184b94445eef_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2140 wrote to memory of 2712 | N/A | C:\Users\Admin\AppData\Local\Temp\18b8180b554a0ce58fec184b94445eef_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\18b8180b554a0ce58fec184b94445eef_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\18b8180b554a0ce58fec184b94445eef_JaffaCakes118.exe"
C:\Windows\SysWOW64\kkaaya.exe
C:\Windows\SysWOW64\kkaaya.exe
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\18B818~1.EXE > nul
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 2b.av0day.com | udp |
Files
memory/2140-0-0x0000000000400000-0x0000000000429000-memory.dmp
C:\Windows\SysWOW64\kkaaya.exe
| MD5 | 18b8180b554a0ce58fec184b94445eef |
| SHA1 | 6fa27f2778dfefd5897e8bdfd58e8b206ecda99f |
| SHA256 | 889b7f224acdc414ed35626c360b3120ad0acda018e313c5159d7b3de5badc82 |
| SHA512 | 7f9e525c225e7f5b271799a80b96a5b1b3edb165beff5dd5e31375bd5a51a312e701fc7f9f0e7fcf3dffb997db78eba21e38be980fad082db403ad6ee1c8e69a |
memory/2168-3-0x0000000000400000-0x0000000000429000-memory.dmp
memory/2140-4-0x0000000000400000-0x0000000000429000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-28 04:05
Reported
2024-06-28 04:08
Platform
win10v2004-20240508-en
Max time kernel
150s
Max time network
149s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\fkjvgk.exe | N/A |
VMProtect packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\fkjvgk.exe | C:\Users\Admin\AppData\Local\Temp\18b8180b554a0ce58fec184b94445eef_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\fkjvgk.exe | C:\Users\Admin\AppData\Local\Temp\18b8180b554a0ce58fec184b94445eef_JaffaCakes118.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 | C:\Windows\SysWOW64\fkjvgk.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Windows\SysWOW64\fkjvgk.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\18b8180b554a0ce58fec184b94445eef_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2300 wrote to memory of 1072 | N/A | C:\Users\Admin\AppData\Local\Temp\18b8180b554a0ce58fec184b94445eef_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2300 wrote to memory of 1072 | N/A | C:\Users\Admin\AppData\Local\Temp\18b8180b554a0ce58fec184b94445eef_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 2300 wrote to memory of 1072 | N/A | C:\Users\Admin\AppData\Local\Temp\18b8180b554a0ce58fec184b94445eef_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\18b8180b554a0ce58fec184b94445eef_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\18b8180b554a0ce58fec184b94445eef_JaffaCakes118.exe"
C:\Windows\SysWOW64\fkjvgk.exe
C:\Windows\SysWOW64\fkjvgk.exe
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\18B818~1.EXE > nul
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2b.av0day.com | udp |
| US | 8.8.8.8:53 | 2b.av0day.com | udp |
| US | 8.8.8.8:53 | 2b.av0day.com | udp |
| US | 8.8.8.8:53 | 2b.av0day.com | udp |
| US | 8.8.8.8:53 | 2b.av0day.com | udp |
| US | 8.8.8.8:53 | 2b.av0day.com | udp |
| US | 8.8.8.8:53 | 2b.av0day.com | udp |
| US | 8.8.8.8:53 | 2b.av0day.com | udp |
| US | 8.8.8.8:53 | 2b.av0day.com | udp |
| US | 8.8.8.8:53 | 2b.av0day.com | udp |
| US | 8.8.8.8:53 | 2b.av0day.com | udp |
| US | 8.8.8.8:53 | 2b.av0day.com | udp |
Files
memory/2300-0-0x0000000000400000-0x0000000000429000-memory.dmp
C:\Windows\SysWOW64\fkjvgk.exe
| MD5 | 18b8180b554a0ce58fec184b94445eef |
| SHA1 | 6fa27f2778dfefd5897e8bdfd58e8b206ecda99f |
| SHA256 | 889b7f224acdc414ed35626c360b3120ad0acda018e313c5159d7b3de5badc82 |
| SHA512 | 7f9e525c225e7f5b271799a80b96a5b1b3edb165beff5dd5e31375bd5a51a312e701fc7f9f0e7fcf3dffb997db78eba21e38be980fad082db403ad6ee1c8e69a |
memory/2300-4-0x0000000000400000-0x0000000000429000-memory.dmp