Analysis Overview
SHA256
130d728017ef29277b90456d97162296fdd0be4fe384464d1cfcfbf673e5be78
Threat Level: Shows suspicious behavior
The file e5766fa8f2f68eb5e00257f0606de710_JaffaCakes118 was found to be: Shows suspicious behavior.
Malicious Activity Summary
UPX packed file
Loads dropped DLL
Reads user/profile data of web browsers
Executes dropped EXE
Adds Run key to start application
Drops file in Windows directory
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Modifies registry class
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-07 17:24
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
2024-04-07 17:24
Reported
2024-04-07 17:26
Platform
win7-20240221-en
Max time kernel
119s
Max time network
122s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\xXbFNTGRaJBr1dV.exe | N/A |
| N/A | N/A | C:\Windows\CTS.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e5766fa8f2f68eb5e00257f0606de710_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e5766fa8f2f68eb5e00257f0606de710_JaffaCakes118.exe | N/A |
Reads user/profile data of web browsers
UPX 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 |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" | C:\Users\Admin\AppData\Local\Temp\e5766fa8f2f68eb5e00257f0606de710_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" | C:\Windows\CTS.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\CTS.exe | C:\Users\Admin\AppData\Local\Temp\e5766fa8f2f68eb5e00257f0606de710_JaffaCakes118.exe | N/A |
| File created | C:\Windows\CTS.exe | C:\Windows\CTS.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\GraphEdtGraph\shell\open | C:\Users\Admin\AppData\Local\Temp\xXbFNTGRaJBr1dV.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\GraphEdtGraph\shell\open\command\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\XXBFNT~1.EXE \"%1\"" | C:\Users\Admin\AppData\Local\Temp\xXbFNTGRaJBr1dV.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\.GRF | C:\Users\Admin\AppData\Local\Temp\xXbFNTGRaJBr1dV.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\.GRF\ = "GraphEdtGraph" | C:\Users\Admin\AppData\Local\Temp\xXbFNTGRaJBr1dV.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\GraphEdtGraph | C:\Users\Admin\AppData\Local\Temp\xXbFNTGRaJBr1dV.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\GraphEdtGraph\ = "Filter Graph" | C:\Users\Admin\AppData\Local\Temp\xXbFNTGRaJBr1dV.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\GraphEdtGraph\shell\open\command | C:\Users\Admin\AppData\Local\Temp\xXbFNTGRaJBr1dV.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\GraphEdtGraph\shell | C:\Users\Admin\AppData\Local\Temp\xXbFNTGRaJBr1dV.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\e5766fa8f2f68eb5e00257f0606de710_JaffaCakes118.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\CTS.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\xXbFNTGRaJBr1dV.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\xXbFNTGRaJBr1dV.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\e5766fa8f2f68eb5e00257f0606de710_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e5766fa8f2f68eb5e00257f0606de710_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\xXbFNTGRaJBr1dV.exe
C:\Users\Admin\AppData\Local\Temp\xXbFNTGRaJBr1dV.exe
C:\Windows\CTS.exe
"C:\Windows\CTS.exe"
Network
Files
memory/1936-1-0x0000000001020000-0x0000000001039000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\xXbFNTGRaJBr1dV.exe
| MD5 | 880e155f8f47fb0db7b2080e71d59568 |
| SHA1 | 2ed0c0f809765bbabd8c7d4f58e9a0bacf2bb629 |
| SHA256 | 6011cd7d1a314d109bc0755d17be2e7812b2f5542ec24f3f3023532c1e8a1d44 |
| SHA512 | 70977d36b8ec8c271c5ffd3303677743a2626196bb62af5d817e86a7eeed972bbb70acdd81508f7b4ee1da366ce02cd96a8d0e6f11627842f195cfd0c53a5bec |
memory/2116-16-0x0000000000190000-0x00000000001A9000-memory.dmp
C:\Windows\CTS.exe
| MD5 | 796f4df6e89c638054b20b09ba1f28e5 |
| SHA1 | 80e5f4e74a798f180f27f9b3dccb3c7461511d7d |
| SHA256 | 3293c5e8c2a49b5c7e2ba41c33e49d894137e25b672f19df5100bb9042bda402 |
| SHA512 | 687860ab619a797cf2d459b0b3324bfca2f5c2b5eb92b2114b423326e1d56e872022000b4402687382c66c3ccf7d061a7f4fd0cf9cafcd5417fb6e096d7e1887 |
memory/1936-13-0x0000000001020000-0x0000000001039000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-07 17:24
Reported
2024-04-07 17:26
Platform
win10v2004-20240226-en
Max time kernel
149s
Max time network
151s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4VFsnsgR98oR8rP.exe | N/A |
| N/A | N/A | C:\Windows\CTS.exe | N/A |
Reads user/profile data of web browsers
UPX 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 |
| N/A | N/A | N/A | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" | C:\Users\Admin\AppData\Local\Temp\e5766fa8f2f68eb5e00257f0606de710_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe" | C:\Windows\CTS.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\CTS.exe | C:\Users\Admin\AppData\Local\Temp\e5766fa8f2f68eb5e00257f0606de710_JaffaCakes118.exe | N/A |
| File created | C:\Windows\CTS.exe | C:\Windows\CTS.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\GraphEdtGraph | C:\Users\Admin\AppData\Local\Temp\4VFsnsgR98oR8rP.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\GraphEdtGraph\ = "Filter Graph" | C:\Users\Admin\AppData\Local\Temp\4VFsnsgR98oR8rP.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\GraphEdtGraph\shell\open\command | C:\Users\Admin\AppData\Local\Temp\4VFsnsgR98oR8rP.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\GraphEdtGraph\shell | C:\Users\Admin\AppData\Local\Temp\4VFsnsgR98oR8rP.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\GraphEdtGraph\shell\open | C:\Users\Admin\AppData\Local\Temp\4VFsnsgR98oR8rP.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\GraphEdtGraph\shell\open\command\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4VFSNS~1.EXE \"%1\"" | C:\Users\Admin\AppData\Local\Temp\4VFsnsgR98oR8rP.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\.GRF | C:\Users\Admin\AppData\Local\Temp\4VFsnsgR98oR8rP.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\.GRF\ = "GraphEdtGraph" | C:\Users\Admin\AppData\Local\Temp\4VFsnsgR98oR8rP.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\e5766fa8f2f68eb5e00257f0606de710_JaffaCakes118.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\CTS.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4VFsnsgR98oR8rP.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4VFsnsgR98oR8rP.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4976 wrote to memory of 5004 | N/A | C:\Users\Admin\AppData\Local\Temp\e5766fa8f2f68eb5e00257f0606de710_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\4VFsnsgR98oR8rP.exe |
| PID 4976 wrote to memory of 5004 | N/A | C:\Users\Admin\AppData\Local\Temp\e5766fa8f2f68eb5e00257f0606de710_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\4VFsnsgR98oR8rP.exe |
| PID 4976 wrote to memory of 4544 | N/A | C:\Users\Admin\AppData\Local\Temp\e5766fa8f2f68eb5e00257f0606de710_JaffaCakes118.exe | C:\Windows\CTS.exe |
| PID 4976 wrote to memory of 4544 | N/A | C:\Users\Admin\AppData\Local\Temp\e5766fa8f2f68eb5e00257f0606de710_JaffaCakes118.exe | C:\Windows\CTS.exe |
| PID 4976 wrote to memory of 4544 | N/A | C:\Users\Admin\AppData\Local\Temp\e5766fa8f2f68eb5e00257f0606de710_JaffaCakes118.exe | C:\Windows\CTS.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\e5766fa8f2f68eb5e00257f0606de710_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e5766fa8f2f68eb5e00257f0606de710_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\4VFsnsgR98oR8rP.exe
C:\Users\Admin\AppData\Local\Temp\4VFsnsgR98oR8rP.exe
C:\Windows\CTS.exe
"C:\Windows\CTS.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.32.126.40.in-addr.arpa | udp |
| US | 20.231.121.79:80 | tcp | |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 249.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 93.65.42.20.in-addr.arpa | udp |
Files
memory/4976-0-0x0000000000920000-0x0000000000939000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\4VFsnsgR98oR8rP.exe
| MD5 | 880e155f8f47fb0db7b2080e71d59568 |
| SHA1 | 2ed0c0f809765bbabd8c7d4f58e9a0bacf2bb629 |
| SHA256 | 6011cd7d1a314d109bc0755d17be2e7812b2f5542ec24f3f3023532c1e8a1d44 |
| SHA512 | 70977d36b8ec8c271c5ffd3303677743a2626196bb62af5d817e86a7eeed972bbb70acdd81508f7b4ee1da366ce02cd96a8d0e6f11627842f195cfd0c53a5bec |
memory/4976-10-0x0000000000920000-0x0000000000939000-memory.dmp
memory/4544-9-0x0000000000D40000-0x0000000000D59000-memory.dmp
C:\Windows\CTS.exe
| MD5 | 796f4df6e89c638054b20b09ba1f28e5 |
| SHA1 | 80e5f4e74a798f180f27f9b3dccb3c7461511d7d |
| SHA256 | 3293c5e8c2a49b5c7e2ba41c33e49d894137e25b672f19df5100bb9042bda402 |
| SHA512 | 687860ab619a797cf2d459b0b3324bfca2f5c2b5eb92b2114b423326e1d56e872022000b4402687382c66c3ccf7d061a7f4fd0cf9cafcd5417fb6e096d7e1887 |
C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml
| MD5 | a8ca95e6092c0c56683258d73a30cbfb |
| SHA1 | 676a4d2d4946570a96d419e0aa6a755dee8e80e7 |
| SHA256 | a327bc290e6d57703ab3dea60fe89e29897c5be7ecaa8ed128818614b4869f54 |
| SHA512 | 474b7b1ffd683e60e083a489932587a869e6e8889fc5c418175f7a76364faf1734ac89c18366bbe13ce10eb3e5a1f4067af243727f450710b4b2457a2a5e37ba |