Analysis Overview
SHA256
85670a72cec6853dba0832c5048d4b92f74301ea9db1a16bedde6316c4bb2ea1
Threat Level: Shows suspicious behavior
The file 85670a72cec6853dba0832c5048d4b92f74301ea9db1a16bedde6316c4bb2ea1 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
2024-04-07 22:57
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-07 22:57
Reported
2024-04-07 23:00
Platform
win7-20240221-en
Max time kernel
149s
Max time network
121s
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-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\85670a72cec6853dba0832c5048d4b92f74301ea9db1a16bedde6316c4bb2ea1.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\85670a72cec6853dba0832c5048d4b92f74301ea9db1a16bedde6316c4bb2ea1.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1040 wrote to memory of 2824 | N/A | C:\Users\Admin\AppData\Local\Temp\85670a72cec6853dba0832c5048d4b92f74301ea9db1a16bedde6316c4bb2ea1.exe | C:\Windows\microsofthelp.exe |
| PID 1040 wrote to memory of 2824 | N/A | C:\Users\Admin\AppData\Local\Temp\85670a72cec6853dba0832c5048d4b92f74301ea9db1a16bedde6316c4bb2ea1.exe | C:\Windows\microsofthelp.exe |
| PID 1040 wrote to memory of 2824 | N/A | C:\Users\Admin\AppData\Local\Temp\85670a72cec6853dba0832c5048d4b92f74301ea9db1a16bedde6316c4bb2ea1.exe | C:\Windows\microsofthelp.exe |
| PID 1040 wrote to memory of 2824 | N/A | C:\Users\Admin\AppData\Local\Temp\85670a72cec6853dba0832c5048d4b92f74301ea9db1a16bedde6316c4bb2ea1.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\85670a72cec6853dba0832c5048d4b92f74301ea9db1a16bedde6316c4bb2ea1.exe
"C:\Users\Admin\AppData\Local\Temp\85670a72cec6853dba0832c5048d4b92f74301ea9db1a16bedde6316c4bb2ea1.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
Files
memory/1040-0-0x0000000000400000-0x0000000000403000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 7fb75efcd53065901ed2ba0506b530cf |
| SHA1 | 8b38c5e96e7f414b3d6e8efcf9d28d7f384c43b7 |
| SHA256 | 356b4ea49c3dd8606f50ef73cc8d5d131307f366c9fb70ae317dfbb21c87ca42 |
| SHA512 | 39758245780e0cd43bf4f9e5723412efcdf5a63aa75dcc6954a52b06dff34cba51a188a405dd15edf830c77f1c1e5fd1f50109bd23afd0b42f5997ecb34d2a97 |
memory/2824-7-0x0000000000400000-0x0000000000403000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-07 22:57
Reported
2024-04-07 23:00
Platform
win10v2004-20240226-en
Max time kernel
149s
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-1-5-21-3270530367-132075249-2153716227-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\85670a72cec6853dba0832c5048d4b92f74301ea9db1a16bedde6316c4bb2ea1.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\85670a72cec6853dba0832c5048d4b92f74301ea9db1a16bedde6316c4bb2ea1.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3224 wrote to memory of 1328 | N/A | C:\Users\Admin\AppData\Local\Temp\85670a72cec6853dba0832c5048d4b92f74301ea9db1a16bedde6316c4bb2ea1.exe | C:\Windows\microsofthelp.exe |
| PID 3224 wrote to memory of 1328 | N/A | C:\Users\Admin\AppData\Local\Temp\85670a72cec6853dba0832c5048d4b92f74301ea9db1a16bedde6316c4bb2ea1.exe | C:\Windows\microsofthelp.exe |
| PID 3224 wrote to memory of 1328 | N/A | C:\Users\Admin\AppData\Local\Temp\85670a72cec6853dba0832c5048d4b92f74301ea9db1a16bedde6316c4bb2ea1.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\85670a72cec6853dba0832c5048d4b92f74301ea9db1a16bedde6316c4bb2ea1.exe
"C:\Users\Admin\AppData\Local\Temp\85670a72cec6853dba0832c5048d4b92f74301ea9db1a16bedde6316c4bb2ea1.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 34.56.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 71.31.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 130.118.77.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 98.56.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | udp |
Files
memory/3224-0-0x0000000000400000-0x0000000000403000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 7fb75efcd53065901ed2ba0506b530cf |
| SHA1 | 8b38c5e96e7f414b3d6e8efcf9d28d7f384c43b7 |
| SHA256 | 356b4ea49c3dd8606f50ef73cc8d5d131307f366c9fb70ae317dfbb21c87ca42 |
| SHA512 | 39758245780e0cd43bf4f9e5723412efcdf5a63aa75dcc6954a52b06dff34cba51a188a405dd15edf830c77f1c1e5fd1f50109bd23afd0b42f5997ecb34d2a97 |
memory/3224-4-0x0000000000400000-0x0000000000403000-memory.dmp