| File name: | Runtime Broker.scr.exe |
| Full analysis: | https://app.any.run/tasks/2d678313-47c1-4274-93d6-2e17296b7dd1 |
| Verdict: | Malicious activity |
| Threats: | njRAT is a remote access trojan. It is one of the most widely accessible RATs on the market that features an abundance of educational information. Interested attackers can even find tutorials on YouTube. This allows it to become one of the most popular RATs in the world. |
| Analysis date: | May 28, 2025, 21:57:42 |
| 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: | B0D3794C8E0344C2EA7A975CFD838A53 |
| SHA1: | C2584B38119ED749714178ED3FA8F5B4E98EC350 |
| SHA256: | 88BF0DB97F3BF88A4B7F0AAFF64CC4065CB5DA6C140008E6CB22316DA47428BB |
| SSDEEP: | 6144:xP2IVIsQnodizj0u2qUmMrV5GRcYNDH0PC/A6aJzmb0g/UoO0q:keQnAizj+mY7GRcYNDH0a/AZJzDg/UoE |
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (42.5) |
|---|---|---|
| .exe | | | InstallShield setup (25) |
| .exe | | | Win64 Executable (generic) (16) |
| .scr | | | Windows screen saver (7.6) |
| .dll | | | Win32 Dynamic Link Library (generic) (3.8) |
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2090:10:05 05:32:40+00:00 |
| ImageFileCharacteristics: | Executable, Large address aware |
| PEType: | PE32 |
| LinkerVersion: | 48 |
| CodeSize: | 230912 |
| InitializedDataSize: | 5120 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x3a40e |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 6 |
| 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: | - |
| CompanyName: | - |
| FileDescription: | - |
| FileVersion: | 1.0.0.0 |
| InternalName: | MasonRootkit.exe |
| LegalCopyright: | - |
| LegalTrademarks: | - |
| OriginalFileName: | MasonRootkit.exe |
| ProductName: | - |
| ProductVersion: | 1.0.0.0 |
| AssemblyVersion: | 1.0.0.0 |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 468 | C:\WINDOWS\system32\svchost.exe -k DcomLaunch -p -s LSM | C:\Windows\System32\svchost.exe | services.exe | ||||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Host Process for Windows Services Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 648 | "C:\Program Files\Microsoft Update Health Tools\uhssvc.exe" | C:\Program Files\Microsoft Update Health Tools\uhssvc.exe | services.exe | ||||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Microsoft Update Health Service Version: 10.0.19041.3626 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 860 | C:\WINDOWS\System32\svchost.exe -k LocalServiceNetworkRestricted -s RmSvc | C:\Windows\System32\svchost.exe | services.exe | ||||||||||||
User: LOCAL SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: Host Process for Windows Services Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 900 | taskhostw.exe None | C:\Windows\System32\taskhostw.exe | svchost.exe | ||||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Host Process for Windows Tasks Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 956 | "ctfmon.exe" | C:\Windows\System32\ctfmon.exe | svchost.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: CTF Loader Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1036 | C:\Windows\System32\RuntimeBroker.exe -Embedding | C:\Windows\System32\RuntimeBroker.exe | svchost.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Runtime Broker Version: 10.0.19041.3636 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1044 | C:\WINDOWS\system32\svchost.exe -k netsvcs -p -s gpsvc | C:\Windows\System32\svchost.exe | services.exe | ||||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Host Process for Windows Services Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1232 | C:\WINDOWS\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s NcbService | C:\Windows\System32\svchost.exe | services.exe | ||||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Host Process for Windows Services Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1248 | C:\Windows\System32\oobe\UserOOBEBroker.exe -Embedding | C:\Windows\System32\oobe\UserOOBEBroker.exe | svchost.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: User OOBE Broker Version: 10.0.19041.3758 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 1252 | C:\WINDOWS\system32\svchost.exe -k LocalServiceNetworkRestricted -p -s TimeBrokerSvc | C:\Windows\System32\svchost.exe | services.exe | ||||||||||||
User: LOCAL SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: Host Process for Windows Services Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| (PID) Process: | (1260) svchost.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\Microsoft\Windows\UpdateOrchestrator |
| Operation: | write | Name: | SD |
Value: 0100049C5C000000680000000000000014000000020048000300000000001400FF011F0001010000000000051200000000001400A900120001010000000000051300000000001800A900120001020000000000052000000020020000010100000000000512000000010100000000000512000000 | |||
| (PID) Process: | (1260) svchost.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\Microsoft\Windows\UpdateOrchestrator\Schedule Maintenance Work |
| Operation: | write | Name: | Index |
Value: 3 | |||
| (PID) Process: | (1260) svchost.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{A0BAB1E0-8FAF-482E-B71A-58DFBB3B502F} |
| Operation: | write | Name: | Hash |
Value: 96724EB84434FB60228EE94896FCF50424BD9CE90A3AAB1D32DE6D3441D3F3E8 | |||
| (PID) Process: | (1260) svchost.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{A0BAB1E0-8FAF-482E-B71A-58DFBB3B502F} |
| Operation: | write | Name: | Schema |
Value: 65538 | |||
| (PID) Process: | (1260) svchost.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{A0BAB1E0-8FAF-482E-B71A-58DFBB3B502F} |
| Operation: | delete value | Name: | Version |
Value: | |||
| (PID) Process: | (1260) svchost.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{A0BAB1E0-8FAF-482E-B71A-58DFBB3B502F} |
| Operation: | delete value | Name: | Date |
Value: | |||
| (PID) Process: | (1260) svchost.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{A0BAB1E0-8FAF-482E-B71A-58DFBB3B502F} |
| Operation: | write | Name: | SecurityDescriptor |
Value: D:P(A;;FA;;;SY)(A;;FRFX;;;LS)(A;;FRFX;;;BA) | |||
| (PID) Process: | (1260) svchost.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{A0BAB1E0-8FAF-482E-B71A-58DFBB3B502F} |
| Operation: | delete value | Name: | Source |
Value: | |||
| (PID) Process: | (1260) svchost.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{A0BAB1E0-8FAF-482E-B71A-58DFBB3B502F} |
| Operation: | delete value | Name: | Author |
Value: | |||
| (PID) Process: | (1260) svchost.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{A0BAB1E0-8FAF-482E-B71A-58DFBB3B502F} |
| Operation: | delete value | Name: | Description |
Value: | |||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 1260 | svchost.exe | C:\Windows\System32\Tasks\MasonRuntime Broker.scr.exe | xml | |
MD5:BBD4ABF1B9B596FD29A775870AF8D3E9 | SHA256:209E2941778EE5E282AC23209454A48FC7AD4B95982F16D969D809A715F65DFF | |||
| 6148 | firefox.exe | C:\Users\admin\AppData\Roaming\Mozilla\Firefox\Background Tasks Profiles\93u99co2.MozillaBackgroundTask-308046B0AF4A39CB-defaultagent\prefs-1.js | text | |
MD5:0E3D46A9BC047F093A50638C7F9D17D6 | SHA256:8496E2090CE54F156D02BEDD2D046805C5DA39C0B13544E09E78AA210C3CDA01 | |||
| 6800 | Runtime Broker.scr.exe | C:\Users\admin\AppData\Local\Temp\elvvgra1.daq.exe | executable | |
MD5:94F1AB3A068F83B32639579EC9C5D025 | SHA256:879CC20B41635709BB304E315AAA5CA4708B480A1BFC2F4935FCF2215188EFB0 | |||
| 6148 | firefox.exe | C:\Users\admin\AppData\Roaming\Mozilla\Firefox\Background Tasks Profiles\93u99co2.MozillaBackgroundTask-308046B0AF4A39CB-defaultagent\prefs.js | text | |
MD5:0E3D46A9BC047F093A50638C7F9D17D6 | SHA256:8496E2090CE54F156D02BEDD2D046805C5DA39C0B13544E09E78AA210C3CDA01 | |||
| 1260 | svchost.exe | C:\Windows\System32\Tasks\Microsoft\Windows\UpdateOrchestrator\Schedule Maintenance Work | xml | |
MD5:4838EE953DAB2C7A1BF57E0C6620A79D | SHA256:22C798E00C4793749EAC39CFB6EA3DD75112FD4453A3706E839038A64504D45D | |||
| 6544 | svchost.exe | C:\Windows\System32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776 | binary | |
MD5:7CF50B42166C91AE686039AE56ABD276 | SHA256:D6CB0F83A5C07EFBD9CF40A192B072F86232ACF7552B2F86FDD213A0FFF09F29 | |||
| 7528 | MusNotifyIcon.exe | C:\ProgramData\USOShared\Logs\User\NotifyIcon.992d9387-eecc-412c-8228-a94fa9c94251.1.etl | binary | |
MD5:49F233C6A7C843A072F7BB6C276DA5DE | SHA256:A06C7E6741B246BF95766D5A2B847D2C44E53C2BC872A438CD47020B105CAC75 | |||
| 6896 | dllhost.exe | C:\Users\admin\AppData\Local\Microsoft\Windows\WebCache\V01.chk | binary | |
MD5:E313E6FAE3209AADA08F9555EC656479 | SHA256:A7C3F81F6A785EDAD90CA02F02D7FBCBBCCC711A00F924D1AA8ED18284CF7F87 | |||
| 6148 | firefox.exe | C:\Users\admin\AppData\Roaming\Mozilla\Firefox\Background Tasks Profiles\93u99co2.MozillaBackgroundTask-308046B0AF4A39CB-defaultagent\datareporting\glean\db\data.safe.tmp | binary | |
MD5:63B1BB87284EFE954E1C3AE390E7EE44 | SHA256:B017EE25A7F5C09EB4BF359CA721D67E6E9D9F95F8CE6F741D47F33BDE6EF73A | |||
| 6544 | svchost.exe | C:\Windows\System32\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776 | binary | |
MD5:E1ABA98FC80A2D0569762A9EECDA433A | SHA256:B2D73A113AE462DED411D18F89B349197A3A1479596B03C00F871FBDC31B9DB7 | |||
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
6544 | svchost.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
— | — | GET | 200 | 23.48.23.192:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
1196 | 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 |
1196 | 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 |
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
— | — | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
— | — | 23.48.23.192:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
— | — | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
3216 | svchost.exe | 172.211.123.249:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | FR | whitelisted |
6800 | Runtime Broker.scr.exe | 91.134.10.127:443 | i.ibb.co | OVH SAS | FR | shared |
6800 | Runtime Broker.scr.exe | 104.26.3.16:443 | rentry.co | CLOUDFLARENET | US | suspicious |
6544 | svchost.exe | 40.126.31.0:443 | 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 |
2104 | svchost.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
abol8b-27708.portmap.io |
| malicious |
i.ibb.co |
| shared |
rentry.co |
| unknown |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
PID | Process | Class | Message |
|---|---|---|---|
2196 | svchost.exe | Potential Corporate Privacy Violation | ET INFO DNS Query to a Reverse Proxy Service Observed |
6800 | Runtime Broker.scr.exe | Not Suspicious Traffic | INFO [ANY.RUN] Image hosting service ImgBB |
2196 | svchost.exe | Misc activity | ET INFO DNS Query for Port Mapping/Tunneling Service Domain (.portmap .io) |
2196 | svchost.exe | Misc activity | ET INFO Pastebin Service Domain in DNS Lookup (rentry .co) |
6800 | Runtime Broker.scr.exe | Misc activity | ET INFO Observed Pastebin Service Domain (rentry .co in TLS SNI) |
2196 | svchost.exe | Misc activity | ET INFO DNS Query for Port Mapping/Tunneling Service Domain (.portmap .io) |
2196 | svchost.exe | Potential Corporate Privacy Violation | ET INFO DNS Query to a Reverse Proxy Service Observed |
6800 | Runtime Broker.scr.exe | Not Suspicious Traffic | INFO [ANY.RUN] Image hosting service ImgBB |
6800 | Runtime Broker.scr.exe | Not Suspicious Traffic | INFO [ANY.RUN] Image hosting service ImgBB |
2196 | svchost.exe | Potential Corporate Privacy Violation | ET INFO DNS Query to a Reverse Proxy Service Observed |