Analysis Overview
SHA256
76cde137fb09567e623b7033ee2e121d87d2f01eba2af5e83a07a0ca52f13af3
Threat Level: Shows suspicious behavior
The file 76cde137fb09567e623b7033ee2e121d87d2f01eba2af5e83a07a0ca52f13af3 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
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-06 22:25
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-06 22:25
Reported
2024-04-06 22:28
Platform
win7-20240221-en
Max time kernel
152s
Max time network
131s
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-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\76cde137fb09567e623b7033ee2e121d87d2f01eba2af5e83a07a0ca52f13af3.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\76cde137fb09567e623b7033ee2e121d87d2f01eba2af5e83a07a0ca52f13af3.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1728 wrote to memory of 1740 | N/A | C:\Users\Admin\AppData\Local\Temp\76cde137fb09567e623b7033ee2e121d87d2f01eba2af5e83a07a0ca52f13af3.exe | C:\Windows\microsofthelp.exe |
| PID 1728 wrote to memory of 1740 | N/A | C:\Users\Admin\AppData\Local\Temp\76cde137fb09567e623b7033ee2e121d87d2f01eba2af5e83a07a0ca52f13af3.exe | C:\Windows\microsofthelp.exe |
| PID 1728 wrote to memory of 1740 | N/A | C:\Users\Admin\AppData\Local\Temp\76cde137fb09567e623b7033ee2e121d87d2f01eba2af5e83a07a0ca52f13af3.exe | C:\Windows\microsofthelp.exe |
| PID 1728 wrote to memory of 1740 | N/A | C:\Users\Admin\AppData\Local\Temp\76cde137fb09567e623b7033ee2e121d87d2f01eba2af5e83a07a0ca52f13af3.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\76cde137fb09567e623b7033ee2e121d87d2f01eba2af5e83a07a0ca52f13af3.exe
"C:\Users\Admin\AppData\Local\Temp\76cde137fb09567e623b7033ee2e121d87d2f01eba2af5e83a07a0ca52f13af3.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
Files
memory/1728-0-0x0000000000400000-0x0000000000402000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 697e042996d814ff43104ada01a07f80 |
| SHA1 | cd068d7b25d9048940b9216e869351a4ae279a26 |
| SHA256 | 88231ba8de95f3434b144fd845804c9639453ae3867bc11c356b3d2a907b76c3 |
| SHA512 | 0e25b68a332887c0cc2e99febaf9d3bea8ec5691c16841de5c7da0c0e8be65ec72ba25b07a09aa59835f8f35cbb6104ffe1899a811c219bc6bc5ccba9765820b |
memory/1740-7-0x0000000000400000-0x0000000000402000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-06 22:25
Reported
2024-04-06 22:28
Platform
win10v2004-20240226-en
Max time kernel
150s
Max time network
151s
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-1-5-21-983155329-280873152-1838004294-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\76cde137fb09567e623b7033ee2e121d87d2f01eba2af5e83a07a0ca52f13af3.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\76cde137fb09567e623b7033ee2e121d87d2f01eba2af5e83a07a0ca52f13af3.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1932 wrote to memory of 3660 | N/A | C:\Users\Admin\AppData\Local\Temp\76cde137fb09567e623b7033ee2e121d87d2f01eba2af5e83a07a0ca52f13af3.exe | C:\Windows\microsofthelp.exe |
| PID 1932 wrote to memory of 3660 | N/A | C:\Users\Admin\AppData\Local\Temp\76cde137fb09567e623b7033ee2e121d87d2f01eba2af5e83a07a0ca52f13af3.exe | C:\Windows\microsofthelp.exe |
| PID 1932 wrote to memory of 3660 | N/A | C:\Users\Admin\AppData\Local\Temp\76cde137fb09567e623b7033ee2e121d87d2f01eba2af5e83a07a0ca52f13af3.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\76cde137fb09567e623b7033ee2e121d87d2f01eba2af5e83a07a0ca52f13af3.exe
"C:\Users\Admin\AppData\Local\Temp\76cde137fb09567e623b7033ee2e121d87d2f01eba2af5e83a07a0ca52f13af3.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.171.91.138.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 140.71.91.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.117.168.52.in-addr.arpa | udp |
Files
memory/1932-0-0x0000000000400000-0x0000000000402000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 697e042996d814ff43104ada01a07f80 |
| SHA1 | cd068d7b25d9048940b9216e869351a4ae279a26 |
| SHA256 | 88231ba8de95f3434b144fd845804c9639453ae3867bc11c356b3d2a907b76c3 |
| SHA512 | 0e25b68a332887c0cc2e99febaf9d3bea8ec5691c16841de5c7da0c0e8be65ec72ba25b07a09aa59835f8f35cbb6104ffe1899a811c219bc6bc5ccba9765820b |