Analysis Overview
SHA256
ff735cb480153176febbce467a02bff6520d015a219071dc06525c8433114b0a
Threat Level: Shows suspicious behavior
The file ff735cb480153176febbce467a02bff6520d015a219071dc06525c8433114b0a 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
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-03 05:55
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-03 05:55
Reported
2024-06-03 05:57
Platform
win7-20240221-en
Max time kernel
149s
Max time network
123s
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-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\ff735cb480153176febbce467a02bff6520d015a219071dc06525c8433114b0a.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\ff735cb480153176febbce467a02bff6520d015a219071dc06525c8433114b0a.exe | N/A |
| File created | C:\Windows\HidePlugin.dll | C:\Windows\microsofthelp.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2776 wrote to memory of 2272 | N/A | C:\Users\Admin\AppData\Local\Temp\ff735cb480153176febbce467a02bff6520d015a219071dc06525c8433114b0a.exe | C:\Windows\microsofthelp.exe |
| PID 2776 wrote to memory of 2272 | N/A | C:\Users\Admin\AppData\Local\Temp\ff735cb480153176febbce467a02bff6520d015a219071dc06525c8433114b0a.exe | C:\Windows\microsofthelp.exe |
| PID 2776 wrote to memory of 2272 | N/A | C:\Users\Admin\AppData\Local\Temp\ff735cb480153176febbce467a02bff6520d015a219071dc06525c8433114b0a.exe | C:\Windows\microsofthelp.exe |
| PID 2776 wrote to memory of 2272 | N/A | C:\Users\Admin\AppData\Local\Temp\ff735cb480153176febbce467a02bff6520d015a219071dc06525c8433114b0a.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\ff735cb480153176febbce467a02bff6520d015a219071dc06525c8433114b0a.exe
"C:\Users\Admin\AppData\Local\Temp\ff735cb480153176febbce467a02bff6520d015a219071dc06525c8433114b0a.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
Files
memory/2776-0-0x0000000000400000-0x000000000040D000-memory.dmp
memory/2776-6-0x0000000000400000-0x000000000040D000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | e3cc663ff39b5fccd31caeddfdbfa204 |
| SHA1 | e512b7d4af793918385016a678904d9a36d1b273 |
| SHA256 | f4ee6108080cf8751b4d811b3fab89f1369c0b8e4d6b51d58e106e328a812182 |
| SHA512 | ec4880ae6c728f7fd32cf165220408190db5161eb67fecc77bacdc1ae33f85fdbeb04c2da38a0102327b62de934825cc92dfe6b4abd57c3520c68d7b5c6b604f |
memory/2272-8-0x0000000000400000-0x000000000040D000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-03 05:55
Reported
2024-06-03 05:57
Platform
win10v2004-20240426-en
Max time kernel
149s
Max time network
96s
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-1-5-21-711569230-3659488422-571408806-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\ff735cb480153176febbce467a02bff6520d015a219071dc06525c8433114b0a.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\HidePlugin.dll | C:\Windows\microsofthelp.exe | N/A |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\ff735cb480153176febbce467a02bff6520d015a219071dc06525c8433114b0a.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 400 wrote to memory of 5008 | N/A | C:\Users\Admin\AppData\Local\Temp\ff735cb480153176febbce467a02bff6520d015a219071dc06525c8433114b0a.exe | C:\Windows\microsofthelp.exe |
| PID 400 wrote to memory of 5008 | N/A | C:\Users\Admin\AppData\Local\Temp\ff735cb480153176febbce467a02bff6520d015a219071dc06525c8433114b0a.exe | C:\Windows\microsofthelp.exe |
| PID 400 wrote to memory of 5008 | N/A | C:\Users\Admin\AppData\Local\Temp\ff735cb480153176febbce467a02bff6520d015a219071dc06525c8433114b0a.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\ff735cb480153176febbce467a02bff6520d015a219071dc06525c8433114b0a.exe
"C:\Users\Admin\AppData\Local\Temp\ff735cb480153176febbce467a02bff6520d015a219071dc06525c8433114b0a.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 144.107.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
Files
memory/400-0-0x0000000000400000-0x000000000040D000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | e3cc663ff39b5fccd31caeddfdbfa204 |
| SHA1 | e512b7d4af793918385016a678904d9a36d1b273 |
| SHA256 | f4ee6108080cf8751b4d811b3fab89f1369c0b8e4d6b51d58e106e328a812182 |
| SHA512 | ec4880ae6c728f7fd32cf165220408190db5161eb67fecc77bacdc1ae33f85fdbeb04c2da38a0102327b62de934825cc92dfe6b4abd57c3520c68d7b5c6b604f |
memory/400-4-0x0000000000400000-0x000000000040D000-memory.dmp