Analysis Overview
SHA256
6a1dfa83de4d60c09fc0aa5809d0c695c02e4f2cc27a861e75f686325d54c476
Threat Level: Known bad
The file 6a1dfa83de4d60c09fc0aa5809d0c695c02e4f2cc27a861e75f686325d54c476 was found to be: Known bad.
Malicious Activity Summary
Detects executables built or packed with MPress PE compressor
Detects executables built or packed with MPress PE compressor
Modifies AppInit DLL entries
Executes dropped EXE
Drops file in Program Files directory
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-06 21:56
Signatures
Detects executables built or packed with MPress PE compressor
| 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
2024-04-06 21:56
Reported
2024-04-06 21:59
Platform
win7-20240221-en
Max time kernel
119s
Max time network
124s
Command Line
Signatures
Detects executables built or packed with MPress PE compressor
| 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 |
Modifies AppInit DLL entries
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\PROGRA~3\Mozilla\tbckyxk.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\PROGRA~3\Mozilla\tbckyxk.exe | C:\Users\Admin\AppData\Local\Temp\6a1dfa83de4d60c09fc0aa5809d0c695c02e4f2cc27a861e75f686325d54c476.exe | N/A |
| File created | C:\PROGRA~3\Mozilla\newtrln.dll | C:\PROGRA~3\Mozilla\tbckyxk.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1760 wrote to memory of 1664 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\tbckyxk.exe |
| PID 1760 wrote to memory of 1664 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\tbckyxk.exe |
| PID 1760 wrote to memory of 1664 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\tbckyxk.exe |
| PID 1760 wrote to memory of 1664 | N/A | C:\Windows\system32\taskeng.exe | C:\PROGRA~3\Mozilla\tbckyxk.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\6a1dfa83de4d60c09fc0aa5809d0c695c02e4f2cc27a861e75f686325d54c476.exe
"C:\Users\Admin\AppData\Local\Temp\6a1dfa83de4d60c09fc0aa5809d0c695c02e4f2cc27a861e75f686325d54c476.exe"
C:\Windows\system32\taskeng.exe
taskeng.exe {3ED2D991-848E-479D-BF56-6FBCAEBA318E} S-1-5-18:NT AUTHORITY\System:Service:
C:\PROGRA~3\Mozilla\tbckyxk.exe
C:\PROGRA~3\Mozilla\tbckyxk.exe -gqpcbye
Network
Files
memory/1932-0-0x0000000000400000-0x000000000042C000-memory.dmp
memory/1932-1-0x0000000000220000-0x000000000027B000-memory.dmp
memory/1932-7-0x0000000000400000-0x000000000042C000-memory.dmp
C:\PROGRA~3\Mozilla\tbckyxk.exe
| MD5 | 585397c50bdfbdc3cac8f48d28d95c2e |
| SHA1 | 7e4d49a08dd5b80d604cafc6b257706ae3753a3d |
| SHA256 | c1d9cefb0735008ad5db3f1e4e5d0a5135faa27896e2cda16ce8f2e881904abd |
| SHA512 | af0e6084efdd9f18475513ffe33b27fb0c2eac90541c4327a848b76e2bf68c8c683cc066e2a637baf0c88c2d297825defb7109d7cf6bc137e5d2a153d95d8e8e |
memory/1664-10-0x0000000000430000-0x000000000048B000-memory.dmp
memory/1664-16-0x0000000000400000-0x000000000042C000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-06 21:56
Reported
2024-04-06 21:59
Platform
win10v2004-20240226-en
Max time kernel
147s
Max time network
157s
Command Line
Signatures
Detects executables built or packed with MPress PE compressor
| 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 |
Modifies AppInit DLL entries
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\PROGRA~3\Mozilla\zonasdl.exe | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\PROGRA~3\Mozilla\zonasdl.exe | C:\Users\Admin\AppData\Local\Temp\6a1dfa83de4d60c09fc0aa5809d0c695c02e4f2cc27a861e75f686325d54c476.exe | N/A |
| File created | C:\PROGRA~3\Mozilla\eggeazi.dll | C:\PROGRA~3\Mozilla\zonasdl.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\6a1dfa83de4d60c09fc0aa5809d0c695c02e4f2cc27a861e75f686325d54c476.exe
"C:\Users\Admin\AppData\Local\Temp\6a1dfa83de4d60c09fc0aa5809d0c695c02e4f2cc27a861e75f686325d54c476.exe"
C:\PROGRA~3\Mozilla\zonasdl.exe
C:\PROGRA~3\Mozilla\zonasdl.exe -ufdnlxl
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 150.1.37.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.71.91.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 3.173.189.20.in-addr.arpa | udp |
Files
memory/4372-0-0x0000000000400000-0x000000000042C000-memory.dmp
memory/4372-1-0x0000000002080000-0x00000000020DB000-memory.dmp
C:\ProgramData\Mozilla\zonasdl.exe
| MD5 | 693b9fd492896c32648469c7fa017536 |
| SHA1 | d4f8acf09bce2cd059792bd3aee73fcf11bfae45 |
| SHA256 | 11b84c97737baf65f923bdbbe8bbec963035000b7be959c2c53ab953a27fa5ec |
| SHA512 | c6a1ab124befb903220baf06cde621423e9fd5efddcbadc05cb15b46df69094a386c03c36ebe487a0b190ccf61061ede39eaa722ce3ffb8cdcec5388ef944810 |
memory/4372-9-0x0000000000400000-0x000000000042C000-memory.dmp
memory/3164-10-0x0000000000D00000-0x0000000000D5B000-memory.dmp
memory/3164-16-0x0000000000400000-0x000000000042C000-memory.dmp