Analysis Overview
SHA256
4a75f2db1dbd3c1218bb9994b7e1c690c4edd4e0c1a675de8d2a127611173e69
Threat Level: Known bad
The file MrsMajor3.0.exe was found to be: Known bad.
Malicious Activity Summary
UAC bypass
Executes dropped EXE
Loads dropped DLL
Obfuscated with Agile.Net obfuscator
Unsigned PE
Enumerates physical storage devices
System policy modification
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-12 22:28
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-12 22:28
Reported
2024-04-12 22:34
Platform
win11-20240412-en
Max time kernel
237s
Max time network
255s
Command Line
Signatures
UAC bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" | C:\Windows\system32\wscript.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\91EF.tmp\eulascr.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\91EF.tmp\eulascr.exe | N/A |
Obfuscated with Agile.Net obfuscator
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1236 wrote to memory of 4260 | N/A | C:\Users\Admin\AppData\Local\Temp\MrsMajor3.0.exe | C:\Windows\system32\wscript.exe |
| PID 1236 wrote to memory of 4260 | N/A | C:\Users\Admin\AppData\Local\Temp\MrsMajor3.0.exe | C:\Windows\system32\wscript.exe |
| PID 4260 wrote to memory of 5088 | N/A | C:\Windows\system32\wscript.exe | C:\Users\Admin\AppData\Local\Temp\91EF.tmp\eulascr.exe |
| PID 4260 wrote to memory of 5088 | N/A | C:\Windows\system32\wscript.exe | C:\Users\Admin\AppData\Local\Temp\91EF.tmp\eulascr.exe |
System policy modification
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System | C:\Windows\system32\wscript.exe | N/A |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" | C:\Windows\system32\wscript.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\MrsMajor3.0.exe
"C:\Users\Admin\AppData\Local\Temp\MrsMajor3.0.exe"
C:\Windows\system32\wscript.exe
"C:\Windows\system32\wscript.exe" C:\Users\Admin\AppData\Local\Temp\91EF.tmp\91F0.tmp\91F1.vbs //Nologo
C:\Users\Admin\AppData\Local\Temp\91EF.tmp\eulascr.exe
"C:\Users\Admin\AppData\Local\Temp\91EF.tmp\eulascr.exe"
Network
Files
C:\Users\Admin\AppData\Local\Temp\91EF.tmp\91F0.tmp\91F1.vbs
| MD5 | 3b8696ecbb737aad2a763c4eaf62c247 |
| SHA1 | 4a2d7a2d61d3f4c414b4e5d2933cd404b8f126e5 |
| SHA256 | ce95f7eea8b303bc23cfd6e41748ad4e7b5e0f0f1d3bdf390eadb1e354915569 |
| SHA512 | 713d9697b892b9dd892537e8a01eab8d0265ebf64867c8beecf7a744321257c2a5c11d4de18fcb486bb69f199422ce3cab8b6afdbe880481c47b06ba8f335beb |
C:\Users\Admin\AppData\Local\Temp\91EF.tmp\eulascr.exe
| MD5 | 8b1c352450e480d9320fce5e6f2c8713 |
| SHA1 | d6bd88bf33de7c5d4e68b233c37cc1540c97bd3a |
| SHA256 | 2c343174231b55e463ca044d19d47bd5842793c15954583eb340bfd95628516e |
| SHA512 | 2d8e43b1021da08ed1bf5aff110159e6bc10478102c024371302ccfce595e77fd76794658617b5b52f9a50190db250c1ba486d247d9cd69e4732a768edbb4cbc |
memory/5088-8-0x0000000000710000-0x000000000073A000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\5a530dfd-bc51-4992-a05d-f09d41a331d4\AgileDotNetRT64.dll
| MD5 | 42b2c266e49a3acd346b91e3b0e638c0 |
| SHA1 | 2bc52134f03fcc51cb4e0f6c7cf70646b4df7dd1 |
| SHA256 | adeed015f06efa363d504a18acb671b1db4b20b23664a55c9bc28aef3283ca29 |
| SHA512 | 770822fd681a1d98afe03f6fbe5f116321b54c8e2989fb07491811fd29fca5b666f1adf4c6900823af1271e342cacc9293e9db307c4eef852d1a253b00347a81 |
memory/5088-15-0x00007FFC20A10000-0x00007FFC20B5F000-memory.dmp
memory/5088-16-0x00007FFC20B60000-0x00007FFC21622000-memory.dmp
memory/5088-17-0x000000001B450000-0x000000001B460000-memory.dmp
memory/5088-18-0x000000001B450000-0x000000001B460000-memory.dmp
memory/5088-19-0x000000001CFE0000-0x000000001D1A2000-memory.dmp
memory/5088-20-0x000000001D6E0000-0x000000001DC08000-memory.dmp
memory/5088-21-0x000000001B450000-0x000000001B460000-memory.dmp
memory/5088-22-0x00007FFC20B60000-0x00007FFC21622000-memory.dmp
memory/5088-23-0x000000001B450000-0x000000001B460000-memory.dmp
memory/5088-24-0x000000001B450000-0x000000001B460000-memory.dmp
memory/5088-25-0x000000001B450000-0x000000001B460000-memory.dmp
memory/5088-27-0x00007FFC20B60000-0x00007FFC21622000-memory.dmp