Analysis Overview
SHA256
36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031e
Threat Level: Shows suspicious behavior
The file 36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN 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
2024-11-09 20:30
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-09 20:30
Reported
2024-11-09 20:32
Platform
win7-20240903-en
Max time kernel
119s
Max time network
16s
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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.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\36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1076 wrote to memory of 1172 | N/A | C:\Users\Admin\AppData\Local\Temp\36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe | C:\Windows\microsofthelp.exe |
| PID 1076 wrote to memory of 1172 | N/A | C:\Users\Admin\AppData\Local\Temp\36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe | C:\Windows\microsofthelp.exe |
| PID 1076 wrote to memory of 1172 | N/A | C:\Users\Admin\AppData\Local\Temp\36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe | C:\Windows\microsofthelp.exe |
| PID 1076 wrote to memory of 1172 | N/A | C:\Users\Admin\AppData\Local\Temp\36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe
"C:\Users\Admin\AppData\Local\Temp\36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
Files
memory/1076-0-0x0000000000400000-0x000000000040E000-memory.dmp
memory/1076-2-0x00000000001B0000-0x00000000001BE000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 721c0b113bb089c810525a3815b7a2ee |
| SHA1 | 6eaf4d5391ee5c9a7a908788da35889de64fbbd8 |
| SHA256 | 66a5b03e74156601b4ceadac6f36ae14d4ea65b868fe74548a79fa9655dd510b |
| SHA512 | 636813215d0aeeb486c902b562abddd8099045b890e2bdeabd70753e0d2901db514994b04a023c985c299c98eba025dcdc47330ad3d6a450c207255f11abe79e |
memory/1172-9-0x0000000000400000-0x000000000040E000-memory.dmp
memory/1172-11-0x0000000000400000-0x000000000040E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-09 20:30
Reported
2024-11-09 20:32
Platform
win10v2004-20241007-en
Max time kernel
119s
Max time network
98s
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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.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\36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.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 2936 wrote to memory of 4940 | N/A | C:\Users\Admin\AppData\Local\Temp\36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe | C:\Windows\microsofthelp.exe |
| PID 2936 wrote to memory of 4940 | N/A | C:\Users\Admin\AppData\Local\Temp\36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe | C:\Windows\microsofthelp.exe |
| PID 2936 wrote to memory of 4940 | N/A | C:\Users\Admin\AppData\Local\Temp\36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe
"C:\Users\Admin\AppData\Local\Temp\36f99af0deca2322b005ce945c6068c234c25dd38ab6989d64f84f933aba031eN.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 149.220.183.52.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 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 53.210.109.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
Files
memory/2936-0-0x0000000000400000-0x000000000040E000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 721c0b113bb089c810525a3815b7a2ee |
| SHA1 | 6eaf4d5391ee5c9a7a908788da35889de64fbbd8 |
| SHA256 | 66a5b03e74156601b4ceadac6f36ae14d4ea65b868fe74548a79fa9655dd510b |
| SHA512 | 636813215d0aeeb486c902b562abddd8099045b890e2bdeabd70753e0d2901db514994b04a023c985c299c98eba025dcdc47330ad3d6a450c207255f11abe79e |
memory/2936-4-0x0000000000400000-0x000000000040E000-memory.dmp
memory/4940-7-0x0000000000400000-0x000000000040E000-memory.dmp