Analysis Overview
SHA256
9b7ef4ae63826909a6587cd2d152026a5e7c1ed0af7a61ff98ac11c1af099937
Threat Level: Shows suspicious behavior
The file 2f3d95e0eaa6d813ec9a3694a16a8d5d6b12217c42393289002558734a2995c7N.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
System Location Discovery: System Language Discovery
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-11 10:57
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-11 10:57
Reported
2024-11-11 10:59
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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\2f3d95e0eaa6d813ec9a3694a16a8d5d6b12217c42393289002558734a2995c7N.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\2f3d95e0eaa6d813ec9a3694a16a8d5d6b12217c42393289002558734a2995c7N.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\2f3d95e0eaa6d813ec9a3694a16a8d5d6b12217c42393289002558734a2995c7N.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2980 wrote to memory of 2192 | N/A | C:\Users\Admin\AppData\Local\Temp\2f3d95e0eaa6d813ec9a3694a16a8d5d6b12217c42393289002558734a2995c7N.exe | C:\Windows\microsofthelp.exe |
| PID 2980 wrote to memory of 2192 | N/A | C:\Users\Admin\AppData\Local\Temp\2f3d95e0eaa6d813ec9a3694a16a8d5d6b12217c42393289002558734a2995c7N.exe | C:\Windows\microsofthelp.exe |
| PID 2980 wrote to memory of 2192 | N/A | C:\Users\Admin\AppData\Local\Temp\2f3d95e0eaa6d813ec9a3694a16a8d5d6b12217c42393289002558734a2995c7N.exe | C:\Windows\microsofthelp.exe |
| PID 2980 wrote to memory of 2192 | N/A | C:\Users\Admin\AppData\Local\Temp\2f3d95e0eaa6d813ec9a3694a16a8d5d6b12217c42393289002558734a2995c7N.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2f3d95e0eaa6d813ec9a3694a16a8d5d6b12217c42393289002558734a2995c7N.exe
"C:\Users\Admin\AppData\Local\Temp\2f3d95e0eaa6d813ec9a3694a16a8d5d6b12217c42393289002558734a2995c7N.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
Files
memory/2980-0-0x0000000000400000-0x0000000000403000-memory.dmp
memory/2980-6-0x0000000000400000-0x0000000000403000-memory.dmp
memory/2192-8-0x0000000000400000-0x0000000000403000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 54db70ea19d0383960c90ca83ed7880b |
| SHA1 | bd73289604e1e2cc7e4b7858f21c0af394dd4061 |
| SHA256 | cfde1f58e9655b0bed4832993319f06e80d3a29df68b1960f9654d6c2ad36459 |
| SHA512 | 421f5fa1f360f09027801831aa27ed09588dfb89d69909c29d8e612d97d10d1e015fb88c6d7f652d5a657295e8090b24f2ae7045f116aecdf7af5f1856899be2 |
memory/2192-10-0x0000000000400000-0x0000000000403000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-11 10:57
Reported
2024-11-11 10:59
Platform
win10v2004-20241007-en
Max time kernel
119s
Max time network
94s
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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\2f3d95e0eaa6d813ec9a3694a16a8d5d6b12217c42393289002558734a2995c7N.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\2f3d95e0eaa6d813ec9a3694a16a8d5d6b12217c42393289002558734a2995c7N.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\2f3d95e0eaa6d813ec9a3694a16a8d5d6b12217c42393289002558734a2995c7N.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2580 wrote to memory of 2308 | N/A | C:\Users\Admin\AppData\Local\Temp\2f3d95e0eaa6d813ec9a3694a16a8d5d6b12217c42393289002558734a2995c7N.exe | C:\Windows\microsofthelp.exe |
| PID 2580 wrote to memory of 2308 | N/A | C:\Users\Admin\AppData\Local\Temp\2f3d95e0eaa6d813ec9a3694a16a8d5d6b12217c42393289002558734a2995c7N.exe | C:\Windows\microsofthelp.exe |
| PID 2580 wrote to memory of 2308 | N/A | C:\Users\Admin\AppData\Local\Temp\2f3d95e0eaa6d813ec9a3694a16a8d5d6b12217c42393289002558734a2995c7N.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\2f3d95e0eaa6d813ec9a3694a16a8d5d6b12217c42393289002558734a2995c7N.exe
"C:\Users\Admin\AppData\Local\Temp\2f3d95e0eaa6d813ec9a3694a16a8d5d6b12217c42393289002558734a2995c7N.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 68.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 75.117.19.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
Files
memory/2580-0-0x0000000000400000-0x0000000000403000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | 54db70ea19d0383960c90ca83ed7880b |
| SHA1 | bd73289604e1e2cc7e4b7858f21c0af394dd4061 |
| SHA256 | cfde1f58e9655b0bed4832993319f06e80d3a29df68b1960f9654d6c2ad36459 |
| SHA512 | 421f5fa1f360f09027801831aa27ed09588dfb89d69909c29d8e612d97d10d1e015fb88c6d7f652d5a657295e8090b24f2ae7045f116aecdf7af5f1856899be2 |
memory/2580-4-0x0000000000400000-0x0000000000403000-memory.dmp
memory/2308-6-0x0000000000400000-0x0000000000403000-memory.dmp