Analysis Overview
SHA256
e21e3a175e5ee1377352de93663ddb004e6eb4f6ea19bd2a5ad50d40dd781953
Threat Level: Shows suspicious behavior
The file e21e3a175e5ee1377352de93663ddb004e6eb4f6ea19bd2a5ad50d40dd781953N 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
2024-11-09 19:48
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-09 19:48
Reported
2024-11-09 19:50
Platform
win7-20240903-en
Max time kernel
119s
Max time network
16s
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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\e21e3a175e5ee1377352de93663ddb004e6eb4f6ea19bd2a5ad50d40dd781953N.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\e21e3a175e5ee1377352de93663ddb004e6eb4f6ea19bd2a5ad50d40dd781953N.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\e21e3a175e5ee1377352de93663ddb004e6eb4f6ea19bd2a5ad50d40dd781953N.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2440 wrote to memory of 2408 | N/A | C:\Users\Admin\AppData\Local\Temp\e21e3a175e5ee1377352de93663ddb004e6eb4f6ea19bd2a5ad50d40dd781953N.exe | C:\Windows\microsofthelp.exe |
| PID 2440 wrote to memory of 2408 | N/A | C:\Users\Admin\AppData\Local\Temp\e21e3a175e5ee1377352de93663ddb004e6eb4f6ea19bd2a5ad50d40dd781953N.exe | C:\Windows\microsofthelp.exe |
| PID 2440 wrote to memory of 2408 | N/A | C:\Users\Admin\AppData\Local\Temp\e21e3a175e5ee1377352de93663ddb004e6eb4f6ea19bd2a5ad50d40dd781953N.exe | C:\Windows\microsofthelp.exe |
| PID 2440 wrote to memory of 2408 | N/A | C:\Users\Admin\AppData\Local\Temp\e21e3a175e5ee1377352de93663ddb004e6eb4f6ea19bd2a5ad50d40dd781953N.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\e21e3a175e5ee1377352de93663ddb004e6eb4f6ea19bd2a5ad50d40dd781953N.exe
"C:\Users\Admin\AppData\Local\Temp\e21e3a175e5ee1377352de93663ddb004e6eb4f6ea19bd2a5ad50d40dd781953N.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
Files
memory/2440-0-0x0000000000400000-0x0000000000403000-memory.dmp
memory/2440-3-0x0000000000220000-0x0000000000223000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | cae656773d14092dfe1d7a48dd4d69b0 |
| SHA1 | d5210ecd3d7fd94c84c7b834e0e88574edb30ae8 |
| SHA256 | 57c77ea5a9a112a410ae65971a8b7607d06b28618c76fcb3f917637c9afd2808 |
| SHA512 | 08e3c5bbc6bffe363599f589557f15b59b38c404ab6c1e5742cf927ededdfacf16da2c022c1b79afb1def421f3e2a1b7c32ebab5fa1e96a84403d6525e4ba810 |
memory/2408-8-0x0000000000400000-0x0000000000403000-memory.dmp
memory/2408-10-0x0000000000400000-0x0000000000403000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-09 19:48
Reported
2024-11-09 19:50
Platform
win10v2004-20241007-en
Max time kernel
120s
Max time network
96s
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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\e21e3a175e5ee1377352de93663ddb004e6eb4f6ea19bd2a5ad50d40dd781953N.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\e21e3a175e5ee1377352de93663ddb004e6eb4f6ea19bd2a5ad50d40dd781953N.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\e21e3a175e5ee1377352de93663ddb004e6eb4f6ea19bd2a5ad50d40dd781953N.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 4560 wrote to memory of 4056 | N/A | C:\Users\Admin\AppData\Local\Temp\e21e3a175e5ee1377352de93663ddb004e6eb4f6ea19bd2a5ad50d40dd781953N.exe | C:\Windows\microsofthelp.exe |
| PID 4560 wrote to memory of 4056 | N/A | C:\Users\Admin\AppData\Local\Temp\e21e3a175e5ee1377352de93663ddb004e6eb4f6ea19bd2a5ad50d40dd781953N.exe | C:\Windows\microsofthelp.exe |
| PID 4560 wrote to memory of 4056 | N/A | C:\Users\Admin\AppData\Local\Temp\e21e3a175e5ee1377352de93663ddb004e6eb4f6ea19bd2a5ad50d40dd781953N.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\e21e3a175e5ee1377352de93663ddb004e6eb4f6ea19bd2a5ad50d40dd781953N.exe
"C:\Users\Admin\AppData\Local\Temp\e21e3a175e5ee1377352de93663ddb004e6eb4f6ea19bd2a5ad50d40dd781953N.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 72.209.201.84.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 30.243.111.52.in-addr.arpa | udp |
Files
memory/4560-0-0x0000000000400000-0x0000000000403000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | cae656773d14092dfe1d7a48dd4d69b0 |
| SHA1 | d5210ecd3d7fd94c84c7b834e0e88574edb30ae8 |
| SHA256 | 57c77ea5a9a112a410ae65971a8b7607d06b28618c76fcb3f917637c9afd2808 |
| SHA512 | 08e3c5bbc6bffe363599f589557f15b59b38c404ab6c1e5742cf927ededdfacf16da2c022c1b79afb1def421f3e2a1b7c32ebab5fa1e96a84403d6525e4ba810 |
memory/4560-4-0x0000000000400000-0x0000000000403000-memory.dmp
memory/4056-6-0x0000000000400000-0x0000000000403000-memory.dmp