Analysis Overview
SHA256
a7a2b6b238150db57c8c5bdba1e45ff62e39ce00cc755191b655db0effe56630
Threat Level: Shows suspicious behavior
The file e581ce7b8b16656bf455ca40da5c1356_JaffaCakes118 was found to be: Shows suspicious behavior.
Malicious Activity Summary
UPX packed file
Reads user/profile data of web browsers
Executes dropped EXE
Loads dropped DLL
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
2024-04-07 17:49
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 17:49
Reported
2024-04-07 17:51
Platform
win7-20240221-en
Max time kernel
141s
Max time network
122s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\UIIeaVCco7tI7iW.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\e581ce7b8b16656bf455ca40da5c1356_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\e581ce7b8b16656bf455ca40da5c1356_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 |
| 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\e581ce7b8b16656bf455ca40da5c1356_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\e581ce7b8b16656bf455ca40da5c1356_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\e581ce7b8b16656bf455ca40da5c1356_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\e581ce7b8b16656bf455ca40da5c1356_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e581ce7b8b16656bf455ca40da5c1356_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\UIIeaVCco7tI7iW.exe
C:\Users\Admin\AppData\Local\Temp\UIIeaVCco7tI7iW.exe
C:\Windows\CTS.exe
"C:\Windows\CTS.exe"
Network
Files
memory/1460-0-0x0000000000830000-0x0000000000847000-memory.dmp
\Users\Admin\AppData\Local\Temp\UIIeaVCco7tI7iW.exe
| MD5 | ae6ce17005c63b7e9bf15a2a21abb315 |
| SHA1 | 9b6bdfb9d648fa422f54ec07b8c8ea70389c09eb |
| SHA256 | 4a3387a54eeca83f3a8ff1f5f282f7966c9e7bfe159c8eb45444cab01b3e167e |
| SHA512 | c883a5f599540d636efc8c0abc05aab7bad0aa1b10ab507f43f18e0fba905a10b94ff2f1ba10ae0fee15cc1b90a165a768dc078fda0ac27474f0eef66f6a11af |
C:\Windows\CTS.exe
| MD5 | 70aa23c9229741a9b52e5ce388a883ac |
| SHA1 | b42683e21e13de3f71db26635954d992ebe7119e |
| SHA256 | 9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2 |
| SHA512 | be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5 |
memory/1460-15-0x0000000000830000-0x0000000000847000-memory.dmp
memory/636-18-0x0000000000CC0000-0x0000000000CD7000-memory.dmp
memory/1460-11-0x0000000000070000-0x0000000000087000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-07 17:49
Reported
2024-04-07 17:52
Platform
win10v2004-20240226-en
Max time kernel
155s
Max time network
159s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\lYcuCAIemOKQb6b.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 |
| 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\e581ce7b8b16656bf455ca40da5c1356_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\e581ce7b8b16656bf455ca40da5c1356_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\e581ce7b8b16656bf455ca40da5c1356_JaffaCakes118.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\CTS.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4456 wrote to memory of 4604 | N/A | C:\Users\Admin\AppData\Local\Temp\e581ce7b8b16656bf455ca40da5c1356_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\lYcuCAIemOKQb6b.exe |
| PID 4456 wrote to memory of 4604 | N/A | C:\Users\Admin\AppData\Local\Temp\e581ce7b8b16656bf455ca40da5c1356_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\lYcuCAIemOKQb6b.exe |
| PID 4456 wrote to memory of 4604 | N/A | C:\Users\Admin\AppData\Local\Temp\e581ce7b8b16656bf455ca40da5c1356_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\lYcuCAIemOKQb6b.exe |
| PID 4456 wrote to memory of 1612 | N/A | C:\Users\Admin\AppData\Local\Temp\e581ce7b8b16656bf455ca40da5c1356_JaffaCakes118.exe | C:\Windows\CTS.exe |
| PID 4456 wrote to memory of 1612 | N/A | C:\Users\Admin\AppData\Local\Temp\e581ce7b8b16656bf455ca40da5c1356_JaffaCakes118.exe | C:\Windows\CTS.exe |
| PID 4456 wrote to memory of 1612 | N/A | C:\Users\Admin\AppData\Local\Temp\e581ce7b8b16656bf455ca40da5c1356_JaffaCakes118.exe | C:\Windows\CTS.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\e581ce7b8b16656bf455ca40da5c1356_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e581ce7b8b16656bf455ca40da5c1356_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\lYcuCAIemOKQb6b.exe
C:\Users\Admin\AppData\Local\Temp\lYcuCAIemOKQb6b.exe
C:\Windows\CTS.exe
"C:\Windows\CTS.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.143.109.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.179.89.13.in-addr.arpa | udp |
Files
memory/4456-0-0x0000000000BE0000-0x0000000000BF7000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\lYcuCAIemOKQb6b.exe
| MD5 | ae6ce17005c63b7e9bf15a2a21abb315 |
| SHA1 | 9b6bdfb9d648fa422f54ec07b8c8ea70389c09eb |
| SHA256 | 4a3387a54eeca83f3a8ff1f5f282f7966c9e7bfe159c8eb45444cab01b3e167e |
| SHA512 | c883a5f599540d636efc8c0abc05aab7bad0aa1b10ab507f43f18e0fba905a10b94ff2f1ba10ae0fee15cc1b90a165a768dc078fda0ac27474f0eef66f6a11af |
C:\Windows\CTS.exe
| MD5 | 70aa23c9229741a9b52e5ce388a883ac |
| SHA1 | b42683e21e13de3f71db26635954d992ebe7119e |
| SHA256 | 9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2 |
| SHA512 | be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5 |
memory/4456-9-0x0000000000BE0000-0x0000000000BF7000-memory.dmp
memory/1612-8-0x0000000000420000-0x0000000000437000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml
| MD5 | b683bf974923beefbac4e64ee5a7aebd |
| SHA1 | 662203899967e60960502464938a7de06f96c9b3 |
| SHA256 | 31eb51fec0c298791c0447cb4d09378b2583d205837f6bc3201864167543a5f5 |
| SHA512 | 58c71b5cadbe0bc2ca31cafb158f4428ee4b69866a0ddad3c195168f23c5879ad7eb32086591dcc226b319f91c6deeba7292db22f4ff04a143d09c75f8b33c32 |
memory/1612-31-0x0000000000420000-0x0000000000437000-memory.dmp