Analysis Overview
SHA256
55e0f247e1ea8fb3ccb3acdb8584ea204627b99023d31e12700abce954a0344b
Threat Level: Shows suspicious behavior
The file 55e0f247e1ea8fb3ccb3acdb8584ea204627b99023d31e12700abce954a0344bN 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
System Location Discovery: System Language Discovery
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-10 01:22
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-10 01:22
Reported
2024-11-10 01:24
Platform
win7-20240903-en
Max time kernel
119s
Max time network
119s
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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\55e0f247e1ea8fb3ccb3acdb8584ea204627b99023d31e12700abce954a0344bN.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\55e0f247e1ea8fb3ccb3acdb8584ea204627b99023d31e12700abce954a0344bN.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\55e0f247e1ea8fb3ccb3acdb8584ea204627b99023d31e12700abce954a0344bN.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2392 wrote to memory of 2156 | N/A | C:\Users\Admin\AppData\Local\Temp\55e0f247e1ea8fb3ccb3acdb8584ea204627b99023d31e12700abce954a0344bN.exe | C:\Windows\microsofthelp.exe |
| PID 2392 wrote to memory of 2156 | N/A | C:\Users\Admin\AppData\Local\Temp\55e0f247e1ea8fb3ccb3acdb8584ea204627b99023d31e12700abce954a0344bN.exe | C:\Windows\microsofthelp.exe |
| PID 2392 wrote to memory of 2156 | N/A | C:\Users\Admin\AppData\Local\Temp\55e0f247e1ea8fb3ccb3acdb8584ea204627b99023d31e12700abce954a0344bN.exe | C:\Windows\microsofthelp.exe |
| PID 2392 wrote to memory of 2156 | N/A | C:\Users\Admin\AppData\Local\Temp\55e0f247e1ea8fb3ccb3acdb8584ea204627b99023d31e12700abce954a0344bN.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\55e0f247e1ea8fb3ccb3acdb8584ea204627b99023d31e12700abce954a0344bN.exe
"C:\Users\Admin\AppData\Local\Temp\55e0f247e1ea8fb3ccb3acdb8584ea204627b99023d31e12700abce954a0344bN.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
Files
memory/2392-0-0x0000000000400000-0x000000000040E000-memory.dmp
memory/2392-7-0x0000000000400000-0x000000000040E000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 7d34f09474544db09863bacdd5e063e0 |
| SHA1 | b852a2330a217a2d5ac6ff22721a5509ee6038d8 |
| SHA256 | e1f7110da06d47ff3a1330330609f1ec8f8e76609631d5f14a54d7dbfe6bc4e0 |
| SHA512 | edc43fb26c37481030ca28f07cab40291bee0e0474c064e32a6a3098677e234e5989b4f0cf9893f8a89fd990517c9b85040bc2801c88df0e924f553a95512d3a |
memory/2156-9-0x0000000000400000-0x000000000040E000-memory.dmp
memory/2156-11-0x0000000000400000-0x000000000040E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-10 01:22
Reported
2024-11-10 01:24
Platform
win10v2004-20241007-en
Max time kernel
119s
Max time network
95s
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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\55e0f247e1ea8fb3ccb3acdb8584ea204627b99023d31e12700abce954a0344bN.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\55e0f247e1ea8fb3ccb3acdb8584ea204627b99023d31e12700abce954a0344bN.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\55e0f247e1ea8fb3ccb3acdb8584ea204627b99023d31e12700abce954a0344bN.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 1876 wrote to memory of 4068 | N/A | C:\Users\Admin\AppData\Local\Temp\55e0f247e1ea8fb3ccb3acdb8584ea204627b99023d31e12700abce954a0344bN.exe | C:\Windows\microsofthelp.exe |
| PID 1876 wrote to memory of 4068 | N/A | C:\Users\Admin\AppData\Local\Temp\55e0f247e1ea8fb3ccb3acdb8584ea204627b99023d31e12700abce954a0344bN.exe | C:\Windows\microsofthelp.exe |
| PID 1876 wrote to memory of 4068 | N/A | C:\Users\Admin\AppData\Local\Temp\55e0f247e1ea8fb3ccb3acdb8584ea204627b99023d31e12700abce954a0344bN.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\55e0f247e1ea8fb3ccb3acdb8584ea204627b99023d31e12700abce954a0344bN.exe
"C:\Users\Admin\AppData\Local\Temp\55e0f247e1ea8fb3ccb3acdb8584ea204627b99023d31e12700abce954a0344bN.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 | 154.239.44.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 98.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.229.111.52.in-addr.arpa | udp |
Files
memory/1876-0-0x0000000000400000-0x000000000040E000-memory.dmp
memory/4068-7-0x0000000000400000-0x000000000040E000-memory.dmp
memory/1876-6-0x0000000000400000-0x000000000040E000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 7d34f09474544db09863bacdd5e063e0 |
| SHA1 | b852a2330a217a2d5ac6ff22721a5509ee6038d8 |
| SHA256 | e1f7110da06d47ff3a1330330609f1ec8f8e76609631d5f14a54d7dbfe6bc4e0 |
| SHA512 | edc43fb26c37481030ca28f07cab40291bee0e0474c064e32a6a3098677e234e5989b4f0cf9893f8a89fd990517c9b85040bc2801c88df0e924f553a95512d3a |
memory/4068-8-0x0000000000400000-0x000000000040E000-memory.dmp