Analysis Overview
SHA256
4a75f2db1dbd3c1218bb9994b7e1c690c4edd4e0c1a675de8d2a127611173e69
Threat Level: Known bad
The file MrsMajor3.0.exe was found to be: Known bad.
Malicious Activity Summary
UAC bypass
Loads dropped DLL
Executes dropped EXE
Obfuscated with Agile.Net obfuscator
Checks computer location settings
Unsigned PE
Enumerates physical storage devices
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
System policy modification
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-09 06:52
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-09 06:52
Reported
2024-03-09 06:55
Platform
win7-20240221-en
Max time kernel
122s
Max time network
125s
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\4AE5.tmp\eulascr.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4AE5.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 |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4AE5.tmp\eulascr.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\4AE5.tmp\eulascr.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2880 wrote to memory of 1704 | N/A | C:\Users\Admin\AppData\Local\Temp\MrsMajor3.0.exe | C:\Windows\system32\wscript.exe |
| PID 2880 wrote to memory of 1704 | N/A | C:\Users\Admin\AppData\Local\Temp\MrsMajor3.0.exe | C:\Windows\system32\wscript.exe |
| PID 2880 wrote to memory of 1704 | N/A | C:\Users\Admin\AppData\Local\Temp\MrsMajor3.0.exe | C:\Windows\system32\wscript.exe |
| PID 1704 wrote to memory of 2696 | N/A | C:\Windows\system32\wscript.exe | C:\Users\Admin\AppData\Local\Temp\4AE5.tmp\eulascr.exe |
| PID 1704 wrote to memory of 2696 | N/A | C:\Windows\system32\wscript.exe | C:\Users\Admin\AppData\Local\Temp\4AE5.tmp\eulascr.exe |
| PID 1704 wrote to memory of 2696 | N/A | C:\Windows\system32\wscript.exe | C:\Users\Admin\AppData\Local\Temp\4AE5.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\4AE5.tmp\4AE6.tmp\4AE7.vbs //Nologo
C:\Users\Admin\AppData\Local\Temp\4AE5.tmp\eulascr.exe
"C:\Users\Admin\AppData\Local\Temp\4AE5.tmp\eulascr.exe"
Network
Files
C:\Users\Admin\AppData\Local\Temp\4AE5.tmp\4AE6.tmp\4AE7.vbs
| MD5 | 3b8696ecbb737aad2a763c4eaf62c247 |
| SHA1 | 4a2d7a2d61d3f4c414b4e5d2933cd404b8f126e5 |
| SHA256 | ce95f7eea8b303bc23cfd6e41748ad4e7b5e0f0f1d3bdf390eadb1e354915569 |
| SHA512 | 713d9697b892b9dd892537e8a01eab8d0265ebf64867c8beecf7a744321257c2a5c11d4de18fcb486bb69f199422ce3cab8b6afdbe880481c47b06ba8f335beb |
C:\Users\Admin\AppData\Local\Temp\4AE5.tmp\eulascr.exe
| MD5 | 8b1c352450e480d9320fce5e6f2c8713 |
| SHA1 | d6bd88bf33de7c5d4e68b233c37cc1540c97bd3a |
| SHA256 | 2c343174231b55e463ca044d19d47bd5842793c15954583eb340bfd95628516e |
| SHA512 | 2d8e43b1021da08ed1bf5aff110159e6bc10478102c024371302ccfce595e77fd76794658617b5b52f9a50190db250c1ba486d247d9cd69e4732a768edbb4cbc |
memory/2696-8-0x0000000000990000-0x00000000009BA000-memory.dmp
memory/2696-9-0x000007FEF5A80000-0x000007FEF646C000-memory.dmp
memory/2696-10-0x0000000001EE0000-0x0000000001F60000-memory.dmp
\Users\Admin\AppData\Local\Temp\5a530dfd-bc51-4992-a05d-f09d41a331d4\AgileDotNetRT64.dll
| MD5 | 42b2c266e49a3acd346b91e3b0e638c0 |
| SHA1 | 2bc52134f03fcc51cb4e0f6c7cf70646b4df7dd1 |
| SHA256 | adeed015f06efa363d504a18acb671b1db4b20b23664a55c9bc28aef3283ca29 |
| SHA512 | 770822fd681a1d98afe03f6fbe5f116321b54c8e2989fb07491811fd29fca5b666f1adf4c6900823af1271e342cacc9293e9db307c4eef852d1a253b00347a81 |
memory/2696-17-0x000007FEF43C0000-0x000007FEF44EC000-memory.dmp
memory/2696-18-0x0000000001EE0000-0x0000000001F60000-memory.dmp
memory/2696-19-0x000007FEF5A80000-0x000007FEF646C000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-09 06:52
Reported
2024-03-09 06:55
Platform
win10v2004-20240226-en
Max time kernel
151s
Max time network
151s
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 |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\MrsMajor3.0.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation | C:\Windows\system32\wscript.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\FF9D.tmp\eulascr.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\FF9D.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 behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\FF9D.tmp\eulascr.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\FF9D.tmp\eulascr.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\FF9D.tmp\eulascr.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3888 wrote to memory of 1680 | N/A | C:\Users\Admin\AppData\Local\Temp\MrsMajor3.0.exe | C:\Windows\system32\wscript.exe |
| PID 3888 wrote to memory of 1680 | N/A | C:\Users\Admin\AppData\Local\Temp\MrsMajor3.0.exe | C:\Windows\system32\wscript.exe |
| PID 1680 wrote to memory of 712 | N/A | C:\Windows\system32\wscript.exe | C:\Users\Admin\AppData\Local\Temp\FF9D.tmp\eulascr.exe |
| PID 1680 wrote to memory of 712 | N/A | C:\Windows\system32\wscript.exe | C:\Users\Admin\AppData\Local\Temp\FF9D.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\FF9D.tmp\FF9E.tmp\FF9F.vbs //Nologo
C:\Users\Admin\AppData\Local\Temp\FF9D.tmp\eulascr.exe
"C:\Users\Admin\AppData\Local\Temp\FF9D.tmp\eulascr.exe"
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3696 --field-trial-handle=3192,i,2785050981002401924,4037047756083432660,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 68.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 180.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.86.106.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 13.107.253.64:443 | tcp | |
| US | 8.8.8.8:53 | 217.135.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 13.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 67.112.168.52.in-addr.arpa | udp |
Files
C:\Users\Admin\AppData\Local\Temp\FF9D.tmp\FF9E.tmp\FF9F.vbs
| MD5 | 3b8696ecbb737aad2a763c4eaf62c247 |
| SHA1 | 4a2d7a2d61d3f4c414b4e5d2933cd404b8f126e5 |
| SHA256 | ce95f7eea8b303bc23cfd6e41748ad4e7b5e0f0f1d3bdf390eadb1e354915569 |
| SHA512 | 713d9697b892b9dd892537e8a01eab8d0265ebf64867c8beecf7a744321257c2a5c11d4de18fcb486bb69f199422ce3cab8b6afdbe880481c47b06ba8f335beb |
C:\Users\Admin\AppData\Local\Temp\FF9D.tmp\eulascr.exe
| MD5 | 8b1c352450e480d9320fce5e6f2c8713 |
| SHA1 | d6bd88bf33de7c5d4e68b233c37cc1540c97bd3a |
| SHA256 | 2c343174231b55e463ca044d19d47bd5842793c15954583eb340bfd95628516e |
| SHA512 | 2d8e43b1021da08ed1bf5aff110159e6bc10478102c024371302ccfce595e77fd76794658617b5b52f9a50190db250c1ba486d247d9cd69e4732a768edbb4cbc |
memory/712-8-0x0000000000F20000-0x0000000000F4A000-memory.dmp
memory/712-9-0x00007FFED7350000-0x00007FFED7E11000-memory.dmp
memory/712-10-0x0000000001820000-0x0000000001830000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\5a530dfd-bc51-4992-a05d-f09d41a331d4\AgileDotNetRT64.dll
| MD5 | 42b2c266e49a3acd346b91e3b0e638c0 |
| SHA1 | 2bc52134f03fcc51cb4e0f6c7cf70646b4df7dd1 |
| SHA256 | adeed015f06efa363d504a18acb671b1db4b20b23664a55c9bc28aef3283ca29 |
| SHA512 | 770822fd681a1d98afe03f6fbe5f116321b54c8e2989fb07491811fd29fca5b666f1adf4c6900823af1271e342cacc9293e9db307c4eef852d1a253b00347a81 |
memory/712-17-0x00007FFED5C00000-0x00007FFED5D4E000-memory.dmp
memory/712-18-0x0000000001820000-0x0000000001830000-memory.dmp
memory/712-19-0x000000001DFB0000-0x000000001E172000-memory.dmp
memory/712-20-0x000000001E6B0000-0x000000001EBD8000-memory.dmp
memory/712-22-0x00007FFED7350000-0x00007FFED7E11000-memory.dmp