Analysis Overview
SHA256
16bc263c0f766d5c1e40d1dfbc081b6212ca7341e720629b16f36baafb6da2ef
Threat Level: Shows suspicious behavior
The file 16bc263c0f766d5c1e40d1dfbc081b6212ca7341e720629b16f36baafb6da2efN 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 22:01
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-09 22:01
Reported
2024-11-09 22:03
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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\16bc263c0f766d5c1e40d1dfbc081b6212ca7341e720629b16f36baafb6da2efN.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\16bc263c0f766d5c1e40d1dfbc081b6212ca7341e720629b16f36baafb6da2efN.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\16bc263c0f766d5c1e40d1dfbc081b6212ca7341e720629b16f36baafb6da2efN.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2092 wrote to memory of 1240 | N/A | C:\Users\Admin\AppData\Local\Temp\16bc263c0f766d5c1e40d1dfbc081b6212ca7341e720629b16f36baafb6da2efN.exe | C:\Windows\microsofthelp.exe |
| PID 2092 wrote to memory of 1240 | N/A | C:\Users\Admin\AppData\Local\Temp\16bc263c0f766d5c1e40d1dfbc081b6212ca7341e720629b16f36baafb6da2efN.exe | C:\Windows\microsofthelp.exe |
| PID 2092 wrote to memory of 1240 | N/A | C:\Users\Admin\AppData\Local\Temp\16bc263c0f766d5c1e40d1dfbc081b6212ca7341e720629b16f36baafb6da2efN.exe | C:\Windows\microsofthelp.exe |
| PID 2092 wrote to memory of 1240 | N/A | C:\Users\Admin\AppData\Local\Temp\16bc263c0f766d5c1e40d1dfbc081b6212ca7341e720629b16f36baafb6da2efN.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\16bc263c0f766d5c1e40d1dfbc081b6212ca7341e720629b16f36baafb6da2efN.exe
"C:\Users\Admin\AppData\Local\Temp\16bc263c0f766d5c1e40d1dfbc081b6212ca7341e720629b16f36baafb6da2efN.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
Files
memory/2092-0-0x0000000000400000-0x0000000000403000-memory.dmp
memory/2092-6-0x0000000000400000-0x0000000000403000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 66659545049a13fe418a55791e1a075e |
| SHA1 | 26ee3b4c7c59c8c24cbac0ce35b65d389bcef3b6 |
| SHA256 | de3d5bcc6f51207fe8210728e81314819a63da492f475b5f2c69aadc073987eb |
| SHA512 | ab4edfa8fbbf6ef1c39ef5c2b8f91046ad858fa691033281c7bfaee91fee51b722ca31f275eb1de8f8cf5342ff30fc075097e5acd3f76c6e8a2a552b62b865d2 |
memory/1240-8-0x0000000000400000-0x0000000000403000-memory.dmp
memory/1240-10-0x0000000000400000-0x0000000000403000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-09 22:01
Reported
2024-11-09 22:03
Platform
win10v2004-20241007-en
Max time kernel
119s
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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\16bc263c0f766d5c1e40d1dfbc081b6212ca7341e720629b16f36baafb6da2efN.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\16bc263c0f766d5c1e40d1dfbc081b6212ca7341e720629b16f36baafb6da2efN.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\16bc263c0f766d5c1e40d1dfbc081b6212ca7341e720629b16f36baafb6da2efN.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 536 wrote to memory of 4164 | N/A | C:\Users\Admin\AppData\Local\Temp\16bc263c0f766d5c1e40d1dfbc081b6212ca7341e720629b16f36baafb6da2efN.exe | C:\Windows\microsofthelp.exe |
| PID 536 wrote to memory of 4164 | N/A | C:\Users\Admin\AppData\Local\Temp\16bc263c0f766d5c1e40d1dfbc081b6212ca7341e720629b16f36baafb6da2efN.exe | C:\Windows\microsofthelp.exe |
| PID 536 wrote to memory of 4164 | N/A | C:\Users\Admin\AppData\Local\Temp\16bc263c0f766d5c1e40d1dfbc081b6212ca7341e720629b16f36baafb6da2efN.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\16bc263c0f766d5c1e40d1dfbc081b6212ca7341e720629b16f36baafb6da2efN.exe
"C:\Users\Admin\AppData\Local\Temp\16bc263c0f766d5c1e40d1dfbc081b6212ca7341e720629b16f36baafb6da2efN.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 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 2.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.209.201.84.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/536-0-0x0000000000400000-0x0000000000403000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 66659545049a13fe418a55791e1a075e |
| SHA1 | 26ee3b4c7c59c8c24cbac0ce35b65d389bcef3b6 |
| SHA256 | de3d5bcc6f51207fe8210728e81314819a63da492f475b5f2c69aadc073987eb |
| SHA512 | ab4edfa8fbbf6ef1c39ef5c2b8f91046ad858fa691033281c7bfaee91fee51b722ca31f275eb1de8f8cf5342ff30fc075097e5acd3f76c6e8a2a552b62b865d2 |
memory/536-4-0x0000000000400000-0x0000000000403000-memory.dmp
memory/4164-6-0x0000000000400000-0x0000000000403000-memory.dmp