Analysis Overview
SHA256
4a3c8dd1d716ae16de2322439014ea29acf0b900bf41ed47d86e62977c503078
Threat Level: Shows suspicious behavior
The file 4a3c8dd1d716ae16de2322439014ea29acf0b900bf41ed47d86e62977c503078 was found to be: Shows suspicious behavior.
Malicious Activity Summary
Executes dropped EXE
Deletes itself
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 21:57
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-09 21:57
Reported
2024-11-09 22:00
Platform
win7-20241010-en
Max time kernel
149s
Max time network
19s
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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\4a3c8dd1d716ae16de2322439014ea29acf0b900bf41ed47d86e62977c503078.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\4a3c8dd1d716ae16de2322439014ea29acf0b900bf41ed47d86e62977c503078.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\4a3c8dd1d716ae16de2322439014ea29acf0b900bf41ed47d86e62977c503078.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2592 wrote to memory of 3000 | N/A | C:\Users\Admin\AppData\Local\Temp\4a3c8dd1d716ae16de2322439014ea29acf0b900bf41ed47d86e62977c503078.exe | C:\Windows\microsofthelp.exe |
| PID 2592 wrote to memory of 3000 | N/A | C:\Users\Admin\AppData\Local\Temp\4a3c8dd1d716ae16de2322439014ea29acf0b900bf41ed47d86e62977c503078.exe | C:\Windows\microsofthelp.exe |
| PID 2592 wrote to memory of 3000 | N/A | C:\Users\Admin\AppData\Local\Temp\4a3c8dd1d716ae16de2322439014ea29acf0b900bf41ed47d86e62977c503078.exe | C:\Windows\microsofthelp.exe |
| PID 2592 wrote to memory of 3000 | N/A | C:\Users\Admin\AppData\Local\Temp\4a3c8dd1d716ae16de2322439014ea29acf0b900bf41ed47d86e62977c503078.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\4a3c8dd1d716ae16de2322439014ea29acf0b900bf41ed47d86e62977c503078.exe
"C:\Users\Admin\AppData\Local\Temp\4a3c8dd1d716ae16de2322439014ea29acf0b900bf41ed47d86e62977c503078.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
Files
memory/2592-0-0x0000000000400000-0x0000000000403000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 280a671508ac84a003da0263a4b6be99 |
| SHA1 | dcbf24dd7c55b4dd2a5501b57c49791ae689e2f1 |
| SHA256 | 0237235829417a3b3aa21f75a74aca51ab1a446c225e5a61417a3bc57d2843f1 |
| SHA512 | b280e9334c2f539d4480043d1f271a9ea81685e7d13c754d772ab9e8158431084be6704a2636759d6d02b43661e0177c8c102d3219af3ad56430938901f63620 |
memory/2592-6-0x0000000000400000-0x0000000000403000-memory.dmp
memory/3000-8-0x0000000000400000-0x0000000000403000-memory.dmp
memory/3000-10-0x0000000000400000-0x0000000000403000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-09 21:57
Reported
2024-11-09 22:00
Platform
win10v2004-20241007-en
Max time kernel
150s
Max time network
150s
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\4a3c8dd1d716ae16de2322439014ea29acf0b900bf41ed47d86e62977c503078.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\4a3c8dd1d716ae16de2322439014ea29acf0b900bf41ed47d86e62977c503078.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\4a3c8dd1d716ae16de2322439014ea29acf0b900bf41ed47d86e62977c503078.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 2844 wrote to memory of 1464 | N/A | C:\Users\Admin\AppData\Local\Temp\4a3c8dd1d716ae16de2322439014ea29acf0b900bf41ed47d86e62977c503078.exe | C:\Windows\microsofthelp.exe |
| PID 2844 wrote to memory of 1464 | N/A | C:\Users\Admin\AppData\Local\Temp\4a3c8dd1d716ae16de2322439014ea29acf0b900bf41ed47d86e62977c503078.exe | C:\Windows\microsofthelp.exe |
| PID 2844 wrote to memory of 1464 | N/A | C:\Users\Admin\AppData\Local\Temp\4a3c8dd1d716ae16de2322439014ea29acf0b900bf41ed47d86e62977c503078.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\4a3c8dd1d716ae16de2322439014ea29acf0b900bf41ed47d86e62977c503078.exe
"C:\Users\Admin\AppData\Local\Temp\4a3c8dd1d716ae16de2322439014ea29acf0b900bf41ed47d86e62977c503078.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 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 17.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 228.249.119.40.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 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | udp |
Files
memory/2844-0-0x0000000000400000-0x0000000000403000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 280a671508ac84a003da0263a4b6be99 |
| SHA1 | dcbf24dd7c55b4dd2a5501b57c49791ae689e2f1 |
| SHA256 | 0237235829417a3b3aa21f75a74aca51ab1a446c225e5a61417a3bc57d2843f1 |
| SHA512 | b280e9334c2f539d4480043d1f271a9ea81685e7d13c754d772ab9e8158431084be6704a2636759d6d02b43661e0177c8c102d3219af3ad56430938901f63620 |
memory/2844-4-0x0000000000400000-0x0000000000403000-memory.dmp
memory/1464-6-0x0000000000400000-0x0000000000403000-memory.dmp