Analysis Overview
SHA256
77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312a
Threat Level: Shows suspicious behavior
The file 77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN 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
2024-11-09 21:42
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-09 21:42
Reported
2024-11-09 21:44
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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.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\77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1868 wrote to memory of 1780 | N/A | C:\Users\Admin\AppData\Local\Temp\77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.exe | C:\Windows\microsofthelp.exe |
| PID 1868 wrote to memory of 1780 | N/A | C:\Users\Admin\AppData\Local\Temp\77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.exe | C:\Windows\microsofthelp.exe |
| PID 1868 wrote to memory of 1780 | N/A | C:\Users\Admin\AppData\Local\Temp\77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.exe | C:\Windows\microsofthelp.exe |
| PID 1868 wrote to memory of 1780 | N/A | C:\Users\Admin\AppData\Local\Temp\77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.exe
"C:\Users\Admin\AppData\Local\Temp\77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
Files
memory/1868-0-0x0000000000400000-0x000000000040E000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 67a945a414391d3d79212300849e6806 |
| SHA1 | 0e14cc0ee7c2339046bca2a8a493b02813084f13 |
| SHA256 | 50274f2a93dc2116f59a89caf7bb5566161060171de81fd8062197a5c8a5dbd1 |
| SHA512 | 36e0b913e14aeec3428873197d2ff8cdd958c8d51c0084d10cc163ffbba65808297281cf7958f20aca33e77a1e9c3fbdfdce029721e93701b0f3773d46657205 |
memory/1868-7-0x0000000000400000-0x000000000040E000-memory.dmp
memory/1780-9-0x0000000000400000-0x000000000040E000-memory.dmp
memory/1780-11-0x0000000000400000-0x000000000040E000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-09 21:42
Reported
2024-11-09 21:44
Platform
win10v2004-20241007-en
Max time kernel
119s
Max time network
97s
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\77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.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\77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.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\77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.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 1864 wrote to memory of 4480 | N/A | C:\Users\Admin\AppData\Local\Temp\77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.exe | C:\Windows\microsofthelp.exe |
| PID 1864 wrote to memory of 4480 | N/A | C:\Users\Admin\AppData\Local\Temp\77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.exe | C:\Windows\microsofthelp.exe |
| PID 1864 wrote to memory of 4480 | N/A | C:\Users\Admin\AppData\Local\Temp\77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.exe
"C:\Users\Admin\AppData\Local\Temp\77d943da7db845a99d567b66eac39c2620a08fafc8bece62e51125ed83b2312aN.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 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 136.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 232.168.11.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.42.69.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 106.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
Files
memory/1864-0-0x0000000000400000-0x000000000040E000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 67a945a414391d3d79212300849e6806 |
| SHA1 | 0e14cc0ee7c2339046bca2a8a493b02813084f13 |
| SHA256 | 50274f2a93dc2116f59a89caf7bb5566161060171de81fd8062197a5c8a5dbd1 |
| SHA512 | 36e0b913e14aeec3428873197d2ff8cdd958c8d51c0084d10cc163ffbba65808297281cf7958f20aca33e77a1e9c3fbdfdce029721e93701b0f3773d46657205 |
memory/1864-6-0x0000000000400000-0x000000000040E000-memory.dmp
memory/4480-7-0x0000000000400000-0x000000000040E000-memory.dmp