Analysis Overview
SHA256
ab520ae0a9940d5b4954977444b7185aa09e1389fa6a293e4798bd9819db6af1
Threat Level: Shows suspicious behavior
The file ab520ae0a9940d5b4954977444b7185aa09e1389fa6a293e4798bd9819db6af1.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
2024-11-13 17:01
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-13 17:01
Reported
2024-11-13 17:04
Platform
win7-20240903-en
Max time kernel
119s
Max time network
118s
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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\ab520ae0a9940d5b4954977444b7185aa09e1389fa6a293e4798bd9819db6af1.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\ab520ae0a9940d5b4954977444b7185aa09e1389fa6a293e4798bd9819db6af1.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\ab520ae0a9940d5b4954977444b7185aa09e1389fa6a293e4798bd9819db6af1.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2512 wrote to memory of 2108 | N/A | C:\Users\Admin\AppData\Local\Temp\ab520ae0a9940d5b4954977444b7185aa09e1389fa6a293e4798bd9819db6af1.exe | C:\Windows\microsofthelp.exe |
| PID 2512 wrote to memory of 2108 | N/A | C:\Users\Admin\AppData\Local\Temp\ab520ae0a9940d5b4954977444b7185aa09e1389fa6a293e4798bd9819db6af1.exe | C:\Windows\microsofthelp.exe |
| PID 2512 wrote to memory of 2108 | N/A | C:\Users\Admin\AppData\Local\Temp\ab520ae0a9940d5b4954977444b7185aa09e1389fa6a293e4798bd9819db6af1.exe | C:\Windows\microsofthelp.exe |
| PID 2512 wrote to memory of 2108 | N/A | C:\Users\Admin\AppData\Local\Temp\ab520ae0a9940d5b4954977444b7185aa09e1389fa6a293e4798bd9819db6af1.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\ab520ae0a9940d5b4954977444b7185aa09e1389fa6a293e4798bd9819db6af1.exe
"C:\Users\Admin\AppData\Local\Temp\ab520ae0a9940d5b4954977444b7185aa09e1389fa6a293e4798bd9819db6af1.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
Files
memory/2512-0-0x0000000000400000-0x0000000000403000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 161cb5bc5a91dacc71d059e0ae6923f3 |
| SHA1 | f9e43e3c66e6033ae1da3a721aa4645891aead13 |
| SHA256 | 65485a7e6091d08ad36a23a44561d453e9ec425289fee32933b04cc4f8620701 |
| SHA512 | be1b7c14031905618603cf15b5da59263767035caf31989b9c1a40684c762a39b5ae3a3d136bc8b4068c4ef449140f9db1d49a63c27f1420311d0d53eb9e3a44 |
memory/2108-8-0x0000000000400000-0x0000000000403000-memory.dmp
memory/2512-6-0x0000000000400000-0x0000000000403000-memory.dmp
memory/2108-10-0x0000000000400000-0x0000000000403000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-13 17:01
Reported
2024-11-13 17:04
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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\ab520ae0a9940d5b4954977444b7185aa09e1389fa6a293e4798bd9819db6af1.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\ab520ae0a9940d5b4954977444b7185aa09e1389fa6a293e4798bd9819db6af1.exe | N/A |
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\microsofthelp.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\ab520ae0a9940d5b4954977444b7185aa09e1389fa6a293e4798bd9819db6af1.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 116 wrote to memory of 3608 | N/A | C:\Users\Admin\AppData\Local\Temp\ab520ae0a9940d5b4954977444b7185aa09e1389fa6a293e4798bd9819db6af1.exe | C:\Windows\microsofthelp.exe |
| PID 116 wrote to memory of 3608 | N/A | C:\Users\Admin\AppData\Local\Temp\ab520ae0a9940d5b4954977444b7185aa09e1389fa6a293e4798bd9819db6af1.exe | C:\Windows\microsofthelp.exe |
| PID 116 wrote to memory of 3608 | N/A | C:\Users\Admin\AppData\Local\Temp\ab520ae0a9940d5b4954977444b7185aa09e1389fa6a293e4798bd9819db6af1.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\ab520ae0a9940d5b4954977444b7185aa09e1389fa6a293e4798bd9819db6af1.exe
"C:\Users\Admin\AppData\Local\Temp\ab520ae0a9940d5b4954977444b7185aa09e1389fa6a293e4798bd9819db6af1.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.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 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
Files
memory/116-0-0x0000000000400000-0x0000000000403000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 161cb5bc5a91dacc71d059e0ae6923f3 |
| SHA1 | f9e43e3c66e6033ae1da3a721aa4645891aead13 |
| SHA256 | 65485a7e6091d08ad36a23a44561d453e9ec425289fee32933b04cc4f8620701 |
| SHA512 | be1b7c14031905618603cf15b5da59263767035caf31989b9c1a40684c762a39b5ae3a3d136bc8b4068c4ef449140f9db1d49a63c27f1420311d0d53eb9e3a44 |
memory/3608-6-0x0000000000400000-0x0000000000403000-memory.dmp
memory/116-5-0x0000000000400000-0x0000000000403000-memory.dmp
memory/3608-7-0x0000000000400000-0x0000000000403000-memory.dmp