Analysis Overview
SHA256
42a0b2c3f0374a1c8f74ef68139321bd9035a69c9e90cd26f8c47e44a747bc98
Threat Level: Shows suspicious behavior
The file 42a0b2c3f0374a1c8f74ef68139321bd9035a69c9e90cd26f8c47e44a747bc98.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
2024-11-13 17:27
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-13 17:27
Reported
2024-11-13 17:29
Platform
win7-20240903-en
Max time kernel
119s
Max time network
120s
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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\42a0b2c3f0374a1c8f74ef68139321bd9035a69c9e90cd26f8c47e44a747bc98.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\42a0b2c3f0374a1c8f74ef68139321bd9035a69c9e90cd26f8c47e44a747bc98.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\42a0b2c3f0374a1c8f74ef68139321bd9035a69c9e90cd26f8c47e44a747bc98.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2308 wrote to memory of 936 | N/A | C:\Users\Admin\AppData\Local\Temp\42a0b2c3f0374a1c8f74ef68139321bd9035a69c9e90cd26f8c47e44a747bc98.exe | C:\Windows\microsofthelp.exe |
| PID 2308 wrote to memory of 936 | N/A | C:\Users\Admin\AppData\Local\Temp\42a0b2c3f0374a1c8f74ef68139321bd9035a69c9e90cd26f8c47e44a747bc98.exe | C:\Windows\microsofthelp.exe |
| PID 2308 wrote to memory of 936 | N/A | C:\Users\Admin\AppData\Local\Temp\42a0b2c3f0374a1c8f74ef68139321bd9035a69c9e90cd26f8c47e44a747bc98.exe | C:\Windows\microsofthelp.exe |
| PID 2308 wrote to memory of 936 | N/A | C:\Users\Admin\AppData\Local\Temp\42a0b2c3f0374a1c8f74ef68139321bd9035a69c9e90cd26f8c47e44a747bc98.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\42a0b2c3f0374a1c8f74ef68139321bd9035a69c9e90cd26f8c47e44a747bc98.exe
"C:\Users\Admin\AppData\Local\Temp\42a0b2c3f0374a1c8f74ef68139321bd9035a69c9e90cd26f8c47e44a747bc98.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
Files
memory/2308-0-0x0000000000400000-0x0000000000403000-memory.dmp
memory/2308-6-0x0000000000400000-0x0000000000403000-memory.dmp
memory/936-8-0x0000000000400000-0x0000000000403000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | a40c6e2330bbdc28b3fd1e6285948b7d |
| SHA1 | 26cc749f6d6e88b303ad060946fe606406e1f00d |
| SHA256 | e66e83e03a75bc48cea4315a92afe397d58d6db940b055e4f42902951bc951ef |
| SHA512 | bf8e2a402373e21918c4959fd61450e217b30dc9fdced0b51f32c335556615dfc9dda1dcaa9508155fabbe6aaeeacd00788446f79d6fdd4a03ee4f14a64fc6cc |
memory/936-10-0x0000000000400000-0x0000000000403000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-13 17:27
Reported
2024-11-13 17:29
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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" | C:\Users\Admin\AppData\Local\Temp\42a0b2c3f0374a1c8f74ef68139321bd9035a69c9e90cd26f8c47e44a747bc98.exe | N/A |
Drops file in Windows directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\microsofthelp.exe | C:\Users\Admin\AppData\Local\Temp\42a0b2c3f0374a1c8f74ef68139321bd9035a69c9e90cd26f8c47e44a747bc98.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\42a0b2c3f0374a1c8f74ef68139321bd9035a69c9e90cd26f8c47e44a747bc98.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 1572 wrote to memory of 1600 | N/A | C:\Users\Admin\AppData\Local\Temp\42a0b2c3f0374a1c8f74ef68139321bd9035a69c9e90cd26f8c47e44a747bc98.exe | C:\Windows\microsofthelp.exe |
| PID 1572 wrote to memory of 1600 | N/A | C:\Users\Admin\AppData\Local\Temp\42a0b2c3f0374a1c8f74ef68139321bd9035a69c9e90cd26f8c47e44a747bc98.exe | C:\Windows\microsofthelp.exe |
| PID 1572 wrote to memory of 1600 | N/A | C:\Users\Admin\AppData\Local\Temp\42a0b2c3f0374a1c8f74ef68139321bd9035a69c9e90cd26f8c47e44a747bc98.exe | C:\Windows\microsofthelp.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\42a0b2c3f0374a1c8f74ef68139321bd9035a69c9e90cd26f8c47e44a747bc98.exe
"C:\Users\Admin\AppData\Local\Temp\42a0b2c3f0374a1c8f74ef68139321bd9035a69c9e90cd26f8c47e44a747bc98.exe"
C:\Windows\microsofthelp.exe
"C:\Windows\microsofthelp.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.163.245.4.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 101.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 83.210.23.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
Files
memory/1572-0-0x0000000000400000-0x0000000000403000-memory.dmp
C:\Windows\microsofthelp.exe
| MD5 | a40c6e2330bbdc28b3fd1e6285948b7d |
| SHA1 | 26cc749f6d6e88b303ad060946fe606406e1f00d |
| SHA256 | e66e83e03a75bc48cea4315a92afe397d58d6db940b055e4f42902951bc951ef |
| SHA512 | bf8e2a402373e21918c4959fd61450e217b30dc9fdced0b51f32c335556615dfc9dda1dcaa9508155fabbe6aaeeacd00788446f79d6fdd4a03ee4f14a64fc6cc |
memory/1572-5-0x0000000000400000-0x0000000000403000-memory.dmp
memory/1600-6-0x0000000000400000-0x0000000000403000-memory.dmp