Analysis Overview
SHA256
505fe20c558378fc013bb98ed9e6429f674279b5a9956571a18743751f5b766b
Threat Level: Shows suspicious behavior
The file c9b8e4d60ca3508538d3070fa3b50b71a80ed53d79bd024405aac3b593d5d205N.exe was found to be: Shows suspicious behavior.
Malicious Activity Summary
Deletes itself
Executes dropped EXE
Adds Run key to start application
Drops file in Windows directory
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-12 11:50
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-12 11:50
Reported
2024-11-12 11:52
Platform
win10v2004-20241007-en
Max time kernel
119s
Max time network
99s
Command Line
Signatures
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\microsofthelp.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\microsofthelp.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\c9b8e4d60ca3508538d3070fa3b50b71a80ed53d79bd024405aac3b593d5d205N.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\c9b8e4d60ca3508538d3070fa3b50b71a80ed53d79bd024405aac3b593d5d205N.exe | N/A |
| File created | C:\Windows\HidePlugin.dll | C:\Windows\microsofthelp.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\c9b8e4d60ca3508538d3070fa3b50b71a80ed53d79bd024405aac3b593d5d205N.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\microsofthelp.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4016 wrote to memory of 1308 | N/A | C:\Users\Admin\AppData\Local\Temp\c9b8e4d60ca3508538d3070fa3b50b71a80ed53d79bd024405aac3b593d5d205N.exe | C:\Windows\microsofthelp.exe |
| PID 4016 wrote to memory of 1308 | N/A | C:\Users\Admin\AppData\Local\Temp\c9b8e4d60ca3508538d3070fa3b50b71a80ed53d79bd024405aac3b593d5d205N.exe | C:\Windows\microsofthelp.exe |
| PID 4016 wrote to memory of 1308 | N/A | C:\Users\Admin\AppData\Local\Temp\c9b8e4d60ca3508538d3070fa3b50b71a80ed53d79bd024405aac3b593d5d205N.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\c9b8e4d60ca3508538d3070fa3b50b71a80ed53d79bd024405aac3b593d5d205N.exe
"C:\Users\Admin\AppData\Local\Temp\c9b8e4d60ca3508538d3070fa3b50b71a80ed53d79bd024405aac3b593d5d205N.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.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 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.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 | 100.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
Files
memory/4016-0-0x0000000000400000-0x000000000040D000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 55ee38421b5d11d46d4565c3a76614dd |
| SHA1 | f42798a3aa0951e48388d397c74a87e2c0f78a6d |
| SHA256 | cc5af48b74bb4dc46bd12c51a12af488aabaf78495881b7348ba875e28fb8bbf |
| SHA512 | 24cfa313218f39f5ae583c2b539d28d630f4bd0ce6c836594712f8b3607a822d3e642569108a5392c22e1c0519d0396323285b398e1ddfbe361923f170d5629d |
memory/4016-4-0x0000000000400000-0x000000000040D000-memory.dmp
memory/1308-6-0x0000000000400000-0x000000000040D000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-12 11:50
Reported
2024-11-12 11:52
Platform
win7-20240903-en
Max time kernel
119s
Max time network
17s
Command Line
Signatures
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\microsofthelp.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\microsofthelp.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\c9b8e4d60ca3508538d3070fa3b50b71a80ed53d79bd024405aac3b593d5d205N.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\c9b8e4d60ca3508538d3070fa3b50b71a80ed53d79bd024405aac3b593d5d205N.exe | N/A |
| File created | C:\Windows\HidePlugin.dll | C:\Windows\microsofthelp.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\c9b8e4d60ca3508538d3070fa3b50b71a80ed53d79bd024405aac3b593d5d205N.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2600 wrote to memory of 1628 | N/A | C:\Users\Admin\AppData\Local\Temp\c9b8e4d60ca3508538d3070fa3b50b71a80ed53d79bd024405aac3b593d5d205N.exe | C:\Windows\microsofthelp.exe |
| PID 2600 wrote to memory of 1628 | N/A | C:\Users\Admin\AppData\Local\Temp\c9b8e4d60ca3508538d3070fa3b50b71a80ed53d79bd024405aac3b593d5d205N.exe | C:\Windows\microsofthelp.exe |
| PID 2600 wrote to memory of 1628 | N/A | C:\Users\Admin\AppData\Local\Temp\c9b8e4d60ca3508538d3070fa3b50b71a80ed53d79bd024405aac3b593d5d205N.exe | C:\Windows\microsofthelp.exe |
| PID 2600 wrote to memory of 1628 | N/A | C:\Users\Admin\AppData\Local\Temp\c9b8e4d60ca3508538d3070fa3b50b71a80ed53d79bd024405aac3b593d5d205N.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\c9b8e4d60ca3508538d3070fa3b50b71a80ed53d79bd024405aac3b593d5d205N.exe
"C:\Users\Admin\AppData\Local\Temp\c9b8e4d60ca3508538d3070fa3b50b71a80ed53d79bd024405aac3b593d5d205N.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
Files
memory/2600-0-0x0000000000400000-0x000000000040D000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 55ee38421b5d11d46d4565c3a76614dd |
| SHA1 | f42798a3aa0951e48388d397c74a87e2c0f78a6d |
| SHA256 | cc5af48b74bb4dc46bd12c51a12af488aabaf78495881b7348ba875e28fb8bbf |
| SHA512 | 24cfa313218f39f5ae583c2b539d28d630f4bd0ce6c836594712f8b3607a822d3e642569108a5392c22e1c0519d0396323285b398e1ddfbe361923f170d5629d |
memory/2600-6-0x0000000000400000-0x000000000040D000-memory.dmp
memory/1628-8-0x0000000000400000-0x000000000040D000-memory.dmp
memory/1628-10-0x0000000000400000-0x000000000040D000-memory.dmp