Analysis Overview
SHA256
7675ab50699f3a876018fd3378946d59dfbcd5d4a3e7be7fee30f5216d9298c4
Threat Level: Shows suspicious behavior
The file e5b592e5d59cc9eaf78c2cc5ef554171_JaffaCakes118 was found to be: Shows suspicious behavior.
Malicious Activity Summary
Loads dropped DLL
Reads user/profile data of web browsers
UPX packed file
Executes dropped EXE
Adds Run key to start application
Drops file in Windows directory
Unsigned PE
Suspicious use of AdjustPrivilegeToken
Checks processor information in registry
Enumerates system info in registry
Suspicious use of WriteProcessMemory
Suspicious behavior: GetForegroundWindowSpam
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-07 19:41
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 19:41
Reported
2024-04-07 19:44
Platform
win7-20240221-en
Max time kernel
145s
Max time network
128s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3JVlSSmlvpVXUWZ.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\e5b592e5d59cc9eaf78c2cc5ef554171_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\e5b592e5d59cc9eaf78c2cc5ef554171_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:\Windows\CTS.exe | N/A |
| File created | C:\Windows\CTS.exe | C:\Users\Admin\AppData\Local\Temp\e5b592e5d59cc9eaf78c2cc5ef554171_JaffaCakes118.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\e5b592e5d59cc9eaf78c2cc5ef554171_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\e5b592e5d59cc9eaf78c2cc5ef554171_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e5b592e5d59cc9eaf78c2cc5ef554171_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\3JVlSSmlvpVXUWZ.exe
C:\Users\Admin\AppData\Local\Temp\3JVlSSmlvpVXUWZ.exe
C:\Windows\CTS.exe
"C:\Windows\CTS.exe"
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
dw20.exe -x -s 376
Network
Files
memory/1600-0-0x0000000000390000-0x00000000003A7000-memory.dmp
\Users\Admin\AppData\Local\Temp\3JVlSSmlvpVXUWZ.exe
| MD5 | e115521ba14b75f53dcdff087ec6898f |
| SHA1 | 87103a892bb514a93d485fba221bacb9da3aae25 |
| SHA256 | 59b284d0ad4c2634938e70fae67d9048bd98422d052fbd745a9b80b5fae7ae29 |
| SHA512 | ab3d097bcf11bf7327a28124052b210f5fb13b9bfb9b7376cae1ba5c30182a330506935288a7fe06b7e3fdd82b57f5c31638f1c301738342819c772b346fa35a |
C:\Windows\CTS.exe
| MD5 | 70aa23c9229741a9b52e5ce388a883ac |
| SHA1 | b42683e21e13de3f71db26635954d992ebe7119e |
| SHA256 | 9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2 |
| SHA512 | be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5 |
memory/1600-14-0x00000000000E0000-0x00000000000F7000-memory.dmp
memory/1600-12-0x00000000000E0000-0x00000000000F7000-memory.dmp
memory/1600-9-0x0000000000390000-0x00000000003A7000-memory.dmp
memory/2508-15-0x0000000000FB0000-0x0000000000FC7000-memory.dmp
memory/1940-18-0x000007FEF5E50000-0x000007FEF67ED000-memory.dmp
memory/1940-19-0x0000000000AA0000-0x0000000000B20000-memory.dmp
memory/2616-20-0x00000000004C0000-0x00000000004C1000-memory.dmp
memory/1940-23-0x000007FEF5E50000-0x000007FEF67ED000-memory.dmp
memory/1940-24-0x0000000000AA0000-0x0000000000B20000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-07 19:41
Reported
2024-04-07 19:44
Platform
win10v2004-20240226-en
Max time kernel
148s
Max time network
158s
Command Line
Signatures
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\KnMOA6FzUKY6psh.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\e5b592e5d59cc9eaf78c2cc5ef554171_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\e5b592e5d59cc9eaf78c2cc5ef554171_JaffaCakes118.exe | N/A |
| File created | C:\Windows\CTS.exe | C:\Windows\CTS.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 | C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\BIOS | C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU | C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\e5b592e5d59cc9eaf78c2cc5ef554171_JaffaCakes118.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\CTS.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe | N/A |
| Token: SeBackupPrivilege | N/A | C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\e5b592e5d59cc9eaf78c2cc5ef554171_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e5b592e5d59cc9eaf78c2cc5ef554171_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\KnMOA6FzUKY6psh.exe
C:\Users\Admin\AppData\Local\Temp\KnMOA6FzUKY6psh.exe
C:\Windows\CTS.exe
"C:\Windows\CTS.exe"
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
dw20.exe -x -s 804
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 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| 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 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 137.71.105.51.in-addr.arpa | udp |
Files
memory/4332-0-0x0000000000530000-0x0000000000547000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\KnMOA6FzUKY6psh.exe
| MD5 | e115521ba14b75f53dcdff087ec6898f |
| SHA1 | 87103a892bb514a93d485fba221bacb9da3aae25 |
| SHA256 | 59b284d0ad4c2634938e70fae67d9048bd98422d052fbd745a9b80b5fae7ae29 |
| SHA512 | ab3d097bcf11bf7327a28124052b210f5fb13b9bfb9b7376cae1ba5c30182a330506935288a7fe06b7e3fdd82b57f5c31638f1c301738342819c772b346fa35a |
C:\Windows\CTS.exe
| MD5 | 70aa23c9229741a9b52e5ce388a883ac |
| SHA1 | b42683e21e13de3f71db26635954d992ebe7119e |
| SHA256 | 9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2 |
| SHA512 | be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5 |
memory/4776-9-0x0000000000D30000-0x0000000000D47000-memory.dmp
memory/4332-7-0x0000000000530000-0x0000000000547000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml
| MD5 | 55be7f9f56974953e2bf17a256160a53 |
| SHA1 | bc9332df52a216db59cecb1b5fa28cd6d3f6f7e8 |
| SHA256 | e5d6a20b2543d478634a313dfb1771e1154be28466895d52a522fb98c7c78214 |
| SHA512 | 63a1e1491aa9a9eccd7dc12db3062c29148e72b30a201d5abfa0b6fc09574e7dbfe861c897f062d9a3d4955c87e44a3a75f4440cb2c5b7c28175c35001cd19bf |
memory/2984-27-0x00007FF8BF440000-0x00007FF8BFDE1000-memory.dmp
memory/2984-28-0x00007FF8BF440000-0x00007FF8BFDE1000-memory.dmp
memory/2984-29-0x0000000001110000-0x0000000001120000-memory.dmp
memory/2984-39-0x00007FF8BF440000-0x00007FF8BFDE1000-memory.dmp
memory/4776-40-0x0000000000D30000-0x0000000000D47000-memory.dmp