Analysis Overview
SHA256
aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732
Threat Level: Shows suspicious behavior
The file aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe 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
2024-11-11 10:59
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-11 10:59
Reported
2024-11-11 11:01
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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.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\aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.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 4940 wrote to memory of 3596 | N/A | C:\Users\Admin\AppData\Local\Temp\aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe | C:\Windows\microsofthelp.exe |
| PID 4940 wrote to memory of 3596 | N/A | C:\Users\Admin\AppData\Local\Temp\aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe | C:\Windows\microsofthelp.exe |
| PID 4940 wrote to memory of 3596 | N/A | C:\Users\Admin\AppData\Local\Temp\aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe
"C:\Users\Admin\AppData\Local\Temp\aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 64.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 197.87.175.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
Files
memory/4940-0-0x0000000000400000-0x0000000000403000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 665616323c15cb52a66d7579129104b3 |
| SHA1 | 5a99f450f406233c9de14c0707f126f1fccb4d39 |
| SHA256 | 1756835ca966f8166a053328db6836d0794b6d87750b077be58b1dc55ff1a2e6 |
| SHA512 | be301d754bef437adf212bfc16dbbe3ea96c9e8e01a2f38ab4ae1e8fc841dea111ce65c24a118c9f2017d8259abffd6a1e78631aa17cedb5b1caa31dc780d1d6 |
memory/4940-4-0x0000000000400000-0x0000000000403000-memory.dmp
memory/3596-6-0x0000000000400000-0x0000000000403000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-11 10:59
Reported
2024-11-11 11:01
Platform
win7-20240729-en
Max time kernel
119s
Max time network
17s
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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.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\aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2544 wrote to memory of 704 | N/A | C:\Users\Admin\AppData\Local\Temp\aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe | C:\Windows\microsofthelp.exe |
| PID 2544 wrote to memory of 704 | N/A | C:\Users\Admin\AppData\Local\Temp\aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe | C:\Windows\microsofthelp.exe |
| PID 2544 wrote to memory of 704 | N/A | C:\Users\Admin\AppData\Local\Temp\aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe | C:\Windows\microsofthelp.exe |
| PID 2544 wrote to memory of 704 | N/A | C:\Users\Admin\AppData\Local\Temp\aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe
"C:\Users\Admin\AppData\Local\Temp\aa5bebfd0ab5fed71550c12b5e289b2c48740b38159e02647a0436f182601732.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
Files
memory/2544-0-0x0000000000400000-0x0000000000403000-memory.dmp
memory/704-8-0x0000000000400000-0x0000000000403000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 665616323c15cb52a66d7579129104b3 |
| SHA1 | 5a99f450f406233c9de14c0707f126f1fccb4d39 |
| SHA256 | 1756835ca966f8166a053328db6836d0794b6d87750b077be58b1dc55ff1a2e6 |
| SHA512 | be301d754bef437adf212bfc16dbbe3ea96c9e8e01a2f38ab4ae1e8fc841dea111ce65c24a118c9f2017d8259abffd6a1e78631aa17cedb5b1caa31dc780d1d6 |
memory/2544-6-0x0000000000400000-0x0000000000403000-memory.dmp
memory/704-10-0x0000000000400000-0x0000000000403000-memory.dmp