Analysis Overview
SHA256
ebca2af4f09d7b61fc7d161c6ada685050481f36ccd08fdd2c02fc85f384fac0
Threat Level: Shows suspicious behavior
The file e3640424307b7602740de650e7939600_JaffaCakes118 was found to be: Shows suspicious behavior.
Malicious Activity Summary
Reads user/profile data of web browsers
Loads dropped DLL
Executes dropped EXE
UPX packed file
Adds Run key to start application
Drops file in Windows directory
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-06 22:06
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: behavioral2
Detonation Overview
Submitted
2024-04-06 22:06
Reported
2024-04-06 22:08
Platform
win10v2004-20240226-en
Max time kernel
141s
Max time network
95s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\a11DllMGASygyOz.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\e3640424307b7602740de650e7939600_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\e3640424307b7602740de650e7939600_JaffaCakes118.exe | N/A |
| File created | C:\Windows\CTS.exe | C:\Windows\CTS.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\e3640424307b7602740de650e7939600_JaffaCakes118.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\CTS.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2376 wrote to memory of 3936 | N/A | C:\Users\Admin\AppData\Local\Temp\e3640424307b7602740de650e7939600_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\a11DllMGASygyOz.exe |
| PID 2376 wrote to memory of 3936 | N/A | C:\Users\Admin\AppData\Local\Temp\e3640424307b7602740de650e7939600_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\a11DllMGASygyOz.exe |
| PID 2376 wrote to memory of 3936 | N/A | C:\Users\Admin\AppData\Local\Temp\e3640424307b7602740de650e7939600_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\a11DllMGASygyOz.exe |
| PID 2376 wrote to memory of 4728 | N/A | C:\Users\Admin\AppData\Local\Temp\e3640424307b7602740de650e7939600_JaffaCakes118.exe | C:\Windows\CTS.exe |
| PID 2376 wrote to memory of 4728 | N/A | C:\Users\Admin\AppData\Local\Temp\e3640424307b7602740de650e7939600_JaffaCakes118.exe | C:\Windows\CTS.exe |
| PID 2376 wrote to memory of 4728 | N/A | C:\Users\Admin\AppData\Local\Temp\e3640424307b7602740de650e7939600_JaffaCakes118.exe | C:\Windows\CTS.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\e3640424307b7602740de650e7939600_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e3640424307b7602740de650e7939600_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\a11DllMGASygyOz.exe
C:\Users\Admin\AppData\Local\Temp\a11DllMGASygyOz.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 | 26.83.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.121.231.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.83.221.88.in-addr.arpa | udp |
Files
memory/2376-0-0x0000000000340000-0x0000000000357000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\a11DllMGASygyOz.exe
| MD5 | 2124a793ac7d675e1b2d5fdee19a87d0 |
| SHA1 | 3a1a6ae7c218e41c4eb303c548db9ec06bd6a6b5 |
| SHA256 | 1aa3927c7985386d42759656665c7b422ee226df16a19446af6d9a6613b8ae9b |
| SHA512 | d5b7b789108c00901e96a3f336c2176a6e7f50e73cb485974e8bb7af1b513b099e88eb6800ed1f0c53969a86a6870130a477c9b17cad0e00f9de4ac90252e051 |
memory/2376-8-0x0000000000340000-0x0000000000357000-memory.dmp
C:\Windows\CTS.exe
| MD5 | 93e5f18caebd8d4a2c893e40e5f38232 |
| SHA1 | fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6 |
| SHA256 | a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8 |
| SHA512 | 986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54 |
memory/4728-10-0x0000000000C60000-0x0000000000C77000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml
| MD5 | 9d2c84cda8fb29aea8d63175e6ad5767 |
| SHA1 | 344e06084f3f0b8e1446851c70d8054e00c02302 |
| SHA256 | c599cbca6fd9e63908876d06ba79e8b9307ccfd49a380142cc85a2e2b4bd1c7b |
| SHA512 | 5687cde00e8bcefa46635a3c928c539abcd07a397670f3b4f2ad5f679a51f6a82f2dd8cb8ac65f8cba8f49b6be3cd2753844dc4bdc59535fea5dcf71e6f95d02 |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-06 22:06
Reported
2024-04-06 22:08
Platform
win7-20240221-en
Max time kernel
141s
Max time network
124s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\VBRd375adSIM7sR.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\e3640424307b7602740de650e7939600_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\e3640424307b7602740de650e7939600_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\e3640424307b7602740de650e7939600_JaffaCakes118.exe | N/A |
| File created | C:\Windows\CTS.exe | C:\Windows\CTS.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\e3640424307b7602740de650e7939600_JaffaCakes118.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\CTS.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\e3640424307b7602740de650e7939600_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e3640424307b7602740de650e7939600_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\VBRd375adSIM7sR.exe
C:\Users\Admin\AppData\Local\Temp\VBRd375adSIM7sR.exe
C:\Windows\CTS.exe
"C:\Windows\CTS.exe"
Network
Files
memory/2148-1-0x00000000002F0000-0x0000000000307000-memory.dmp
\Users\Admin\AppData\Local\Temp\VBRd375adSIM7sR.exe
| MD5 | 2124a793ac7d675e1b2d5fdee19a87d0 |
| SHA1 | 3a1a6ae7c218e41c4eb303c548db9ec06bd6a6b5 |
| SHA256 | 1aa3927c7985386d42759656665c7b422ee226df16a19446af6d9a6613b8ae9b |
| SHA512 | d5b7b789108c00901e96a3f336c2176a6e7f50e73cb485974e8bb7af1b513b099e88eb6800ed1f0c53969a86a6870130a477c9b17cad0e00f9de4ac90252e051 |
memory/2148-13-0x0000000000130000-0x0000000000147000-memory.dmp
memory/2148-11-0x00000000002F0000-0x0000000000307000-memory.dmp
C:\Windows\CTS.exe
| MD5 | 93e5f18caebd8d4a2c893e40e5f38232 |
| SHA1 | fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6 |
| SHA256 | a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8 |
| SHA512 | 986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54 |
memory/324-16-0x00000000000B0000-0x00000000000C7000-memory.dmp
memory/2148-21-0x0000000000130000-0x0000000000147000-memory.dmp