Analysis Overview
SHA256
4a75f2db1dbd3c1218bb9994b7e1c690c4edd4e0c1a675de8d2a127611173e69
Threat Level: Known bad
The file MrsMajor3.0.exe was found to be: Known bad.
Malicious Activity Summary
UAC bypass
Obfuscated with Agile.Net obfuscator
Executes dropped EXE
Loads dropped DLL
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
System policy modification
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-14 11:04
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-14 11:04
Reported
2024-04-14 11:11
Platform
win7-20240221-en
Max time kernel
359s
Max time network
360s
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\231A.tmp\eulascr.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\231A.tmp\eulascr.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\231A.tmp\eulascr.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\231A.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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\231A.tmp\eulascr.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\231A.tmp\eulascr.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\msinfo32.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\231A.tmp\eulascr.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\231A.tmp\eulascr.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
| Token: 33 | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\231A.tmp\eulascr.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\231A.tmp\eulascr.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\231A.tmp\eulascr.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1676 wrote to memory of 2696 | N/A | C:\Users\Admin\AppData\Local\Temp\MrsMajor3.0.exe | C:\Windows\system32\wscript.exe |
| PID 1676 wrote to memory of 2696 | N/A | C:\Users\Admin\AppData\Local\Temp\MrsMajor3.0.exe | C:\Windows\system32\wscript.exe |
| PID 1676 wrote to memory of 2696 | N/A | C:\Users\Admin\AppData\Local\Temp\MrsMajor3.0.exe | C:\Windows\system32\wscript.exe |
| PID 2696 wrote to memory of 2960 | N/A | C:\Windows\system32\wscript.exe | C:\Users\Admin\AppData\Local\Temp\231A.tmp\eulascr.exe |
| PID 2696 wrote to memory of 2960 | N/A | C:\Windows\system32\wscript.exe | C:\Users\Admin\AppData\Local\Temp\231A.tmp\eulascr.exe |
| PID 2696 wrote to memory of 2960 | N/A | C:\Windows\system32\wscript.exe | C:\Users\Admin\AppData\Local\Temp\231A.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\231A.tmp\231B.tmp\231C.vbs //Nologo
C:\Users\Admin\AppData\Local\Temp\231A.tmp\eulascr.exe
"C:\Users\Admin\AppData\Local\Temp\231A.tmp\eulascr.exe"
C:\Windows\system32\msinfo32.exe
"C:\Windows\system32\msinfo32.exe"
C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x540
C:\Users\Admin\AppData\Local\Temp\231A.tmp\eulascr.exe
"C:\Users\Admin\AppData\Local\Temp\231A.tmp\eulascr.exe"
Network
Files
C:\Users\Admin\AppData\Local\Temp\231A.tmp\231B.tmp\231C.vbs
| MD5 | 3b8696ecbb737aad2a763c4eaf62c247 |
| SHA1 | 4a2d7a2d61d3f4c414b4e5d2933cd404b8f126e5 |
| SHA256 | ce95f7eea8b303bc23cfd6e41748ad4e7b5e0f0f1d3bdf390eadb1e354915569 |
| SHA512 | 713d9697b892b9dd892537e8a01eab8d0265ebf64867c8beecf7a744321257c2a5c11d4de18fcb486bb69f199422ce3cab8b6afdbe880481c47b06ba8f335beb |
C:\Users\Admin\AppData\Local\Temp\231A.tmp\eulascr.exe
| MD5 | 8b1c352450e480d9320fce5e6f2c8713 |
| SHA1 | d6bd88bf33de7c5d4e68b233c37cc1540c97bd3a |
| SHA256 | 2c343174231b55e463ca044d19d47bd5842793c15954583eb340bfd95628516e |
| SHA512 | 2d8e43b1021da08ed1bf5aff110159e6bc10478102c024371302ccfce595e77fd76794658617b5b52f9a50190db250c1ba486d247d9cd69e4732a768edbb4cbc |
memory/2960-8-0x00000000011F0000-0x000000000121A000-memory.dmp
memory/2960-9-0x000007FEF5950000-0x000007FEF633C000-memory.dmp
memory/2960-10-0x000000001AF20000-0x000000001AFA0000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\5a530dfd-bc51-4992-a05d-f09d41a331d4\AgileDotNetRT64.dll
| MD5 | 42b2c266e49a3acd346b91e3b0e638c0 |
| SHA1 | 2bc52134f03fcc51cb4e0f6c7cf70646b4df7dd1 |
| SHA256 | adeed015f06efa363d504a18acb671b1db4b20b23664a55c9bc28aef3283ca29 |
| SHA512 | 770822fd681a1d98afe03f6fbe5f116321b54c8e2989fb07491811fd29fca5b666f1adf4c6900823af1271e342cacc9293e9db307c4eef852d1a253b00347a81 |
memory/2960-17-0x000007FEF6D90000-0x000007FEF6EBC000-memory.dmp
memory/2960-18-0x000000001AF20000-0x000000001AFA0000-memory.dmp
memory/2960-19-0x000007FEF5950000-0x000007FEF633C000-memory.dmp
memory/2272-22-0x000007FEF46F0000-0x000007FEF50DC000-memory.dmp
memory/2272-21-0x00000000009F0000-0x0000000000A1A000-memory.dmp
memory/2272-25-0x000007FEF2F30000-0x000007FEF305C000-memory.dmp
memory/2272-26-0x000000001ACB0000-0x000000001AD30000-memory.dmp
memory/2272-27-0x000000001ACB0000-0x000000001AD30000-memory.dmp
memory/2272-28-0x000007FEF46F0000-0x000007FEF50DC000-memory.dmp
memory/2272-29-0x000000001ACB0000-0x000000001AD30000-memory.dmp