| File name: | tailscale-setup-1.76.0.exe |
| Full analysis: | https://app.any.run/tasks/a39555af-0d18-45ff-9aff-a88c155f1100 |
| Verdict: | Malicious activity |
| Analysis date: | October 17, 2024, 13:37:44 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows |
| MD5: | EBA0AC47D57CB95AFFCD337C6CF585F9 |
| SHA1: | 2E11698972700DC7FD1F1514BE7FB7835EA768EA |
| SHA256: | 038B2BA8A9029A53B0F7994FC3E02FBB81E714CC2E566555C289BE8F184F3FB2 |
| SSDEEP: | 24576:x1cgiCevXJG6jlAhIxY6KS7xcA0tEHzmsd6LTyru:x1cgiCevXJG6jlAhIS6KS7xcAUETmsdk |
MALICIOUS
No malicious indicators.SUSPICIOUS
Starts itself from another location
- tailscale-setup-1.76.0.exe (PID: 540)
- tailscale-setup-1.76.0.exe (PID: 3852)
Executable content was dropped or overwritten
- tailscale-setup-1.76.0.exe (PID: 540)
- tailscale-setup-1.76.0.exe (PID: 3852)
- tailscale-setup-1.76.0.exe (PID: 5324)
- tailscaled.exe (PID: 5240)
- drvinst.exe (PID: 7544)
Executes as Windows Service
- VSSVC.exe (PID: 2236)
- tailscaled.exe (PID: 1068)
Application launched itself
- tailscaled.exe (PID: 1068)
Starts SC.EXE for service management
- msiexec.exe (PID: 2184)
Drops a system driver (possible attempt to evade defenses)
- tailscaled.exe (PID: 5240)
- drvinst.exe (PID: 7544)
Uses NETSH.EXE to delete a firewall rule or allowed programs
- tailscaled.exe (PID: 5240)
Process uses IPCONFIG to clear DNS cache
- tailscaled.exe (PID: 5240)
Process uses IPCONFIG to get network configuration information
- tailscaled.exe (PID: 5240)
Uses NETSH.EXE to add a firewall rule or allowed programs
- tailscaled.exe (PID: 5240)
INFO
Manages system restore points
- SrTasks.exe (PID: 7960)
Application launched itself
- msiexec.exe (PID: 6420)
Executable content was dropped or overwritten
- msiexec.exe (PID: 6420)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win32 Executable (generic) (52.9) |
|---|---|---|
| .exe | | | Generic Win/DOS Executable (23.5) |
| .exe | | | DOS Executable Generic (23.5) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2024:03:22 22:14:43+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit, Removable run from swap, Net run from swap |
| PEType: | PE32 |
| LinkerVersion: | 14.16 |
| CodeSize: | 314368 |
| InitializedDataSize: | 302080 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x302e5 |
| OSVersion: | 6 |
| ImageVersion: | - |
| SubsystemVersion: | 6 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 1.76.0.0 |
| ProductVersionNumber: | 1.76.0.0 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | English (U.S.) |
| CharacterSet: | Windows, Latin1 |
| CompanyName: | Tailscale Inc. |
| FileDescription: | Tailscale |
| FileVersion: | 1.76.0 |
| InternalName: | setup |
| LegalCopyright: | Copyright (c) Tailscale Inc.. All rights reserved. |
| OriginalFileName: | tailscale-setup-1.76.0.exe |
| ProductName: | Tailscale |
| ProductVersion: | 1.76.0 |
Total processes
165
Monitored processes
32
Malicious processes
2
Suspicious processes
1
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 540 | "C:\Users\admin\AppData\Local\Temp\tailscale-setup-1.76.0.exe" | C:\Users\admin\AppData\Local\Temp\tailscale-setup-1.76.0.exe | explorer.exe | ||||||||||||
User: admin Company: Tailscale Inc. Integrity Level: MEDIUM Description: Tailscale Version: 1.76.0 Modules
| |||||||||||||||
| 612 | C:\WINDOWS\system32\netsh.exe advfirewall firewall delete rule name=Tailscale-In dir=in | C:\Windows\System32\netsh.exe | — | tailscaled.exe | |||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Network Command Shell Exit code: 1 Version: 10.0.19041.1 (WinBuild.160101.0800) | |||||||||||||||
| 1068 | "C:\Program Files\Tailscale\tailscaled.exe" | C:\Program Files\Tailscale\tailscaled.exe | — | services.exe | |||||||||||
User: SYSTEM Company: Tailscale Inc. Integrity Level: SYSTEM Description: Tailscale service Version: 1.76.0-t6d996464a-gd75b8cb4b | |||||||||||||||
| 1580 | ipconfig /registerdns | C:\Windows\System32\ipconfig.exe | — | tailscaled.exe | |||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: IP Configuration Utility Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) | |||||||||||||||
| 2184 | C:\Windows\syswow64\MsiExec.exe -Embedding 8EB28BE11DD115D45971D38AD5E3585A E Global\MSI0000 | C:\Windows\SysWOW64\msiexec.exe | — | msiexec.exe | |||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Windows® installer Exit code: 0 Version: 5.0.19041.3636 (WinBuild.160101.0800) | |||||||||||||||
| 2236 | C:\WINDOWS\system32\vssvc.exe | C:\Windows\System32\VSSVC.exe | — | services.exe | |||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Microsoft® Volume Shadow Copy Service Version: 10.0.19041.1 (WinBuild.160101.0800) | |||||||||||||||
| 3852 | "C:\Users\admin\AppData\Local\Temp\{12972FAC-C9D4-4416-9D3A-0FFA0163EDD1}\.cr\tailscale-setup-1.76.0.exe" -burn.clean.room="C:\Users\admin\AppData\Local\Temp\tailscale-setup-1.76.0.exe" -burn.filehandle.attached=596 -burn.filehandle.self=544 | C:\Users\admin\AppData\Local\Temp\{12972FAC-C9D4-4416-9D3A-0FFA0163EDD1}\.cr\tailscale-setup-1.76.0.exe | tailscale-setup-1.76.0.exe | ||||||||||||
User: admin Company: Tailscale Inc. Integrity Level: MEDIUM Description: Tailscale Version: 1.76.0 Modules
| |||||||||||||||
| 4684 | "C:\WINDOWS\system32\sc.exe" failure Tailscale reset= 60 actions= restart/1000/restart/2000/restart/4000/restart/9000/restart/16000/restart/25000/restart/36000/restart/49000/restart/64000 | C:\Windows\System32\sc.exe | — | msiexec.exe | |||||||||||
User: SYSTEM Company: Microsoft Corporation Integrity Level: SYSTEM Description: Service Control Manager Configuration Tool Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) | |||||||||||||||
| 5240 | "C:\Program Files\Tailscale\tailscaled.exe" /subproc 71e5223a061e41f9cf8039265ee7884617a30f7d78fddca1b1fc043e96bf27dc | C:\Program Files\Tailscale\tailscaled.exe | tailscaled.exe | ||||||||||||
User: SYSTEM Company: Tailscale Inc. Integrity Level: SYSTEM Description: Tailscale service Version: 1.76.0-t6d996464a-gd75b8cb4b | |||||||||||||||
| 5324 | "C:\Users\admin\AppData\Local\Temp\{9311382C-AE1D-45E3-B3A6-FC695A96FD0F}\.be\tailscale-setup-1.76.0.exe" -q -burn.elevated BurnPipe.{7D970EEA-DB11-4789-9672-6B0D5D3100F8} {C6D5BA62-DD7F-40C6-AC84-B6C8D215D751} 3852 | C:\Users\admin\AppData\Local\Temp\{9311382C-AE1D-45E3-B3A6-FC695A96FD0F}\.be\tailscale-setup-1.76.0.exe | tailscale-setup-1.76.0.exe | ||||||||||||
User: admin Company: Tailscale Inc. Integrity Level: HIGH Description: Tailscale Version: 1.76.0 | |||||||||||||||
Total events
94
Read events
94
Write events
0
Delete events
0
Modification events
Executable files
16
Suspicious files
37
Text files
10
Unknown types
11
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 6952 | dllhost.exe | C:\System Volume Information\SPP\metadata-2 | — | |
MD5:— | SHA256:— | |||
| 3852 | tailscale-setup-1.76.0.exe | C:\Users\admin\AppData\Local\Temp\{9311382C-AE1D-45E3-B3A6-FC695A96FD0F}\MsiAMD64 | — | |
MD5:— | SHA256:— | |||
| 5324 | tailscale-setup-1.76.0.exe | C:\ProgramData\Package Cache\.unverified\MsiAMD64 | — | |
MD5:— | SHA256:— | |||
| 5324 | tailscale-setup-1.76.0.exe | C:\ProgramData\Package Cache\{0751500C-0B1A-5808-82CC-22D0193590FE}v1.76.0\tailscale-setup-1.76.0-amd64.msi | — | |
MD5:— | SHA256:— | |||
| 6420 | msiexec.exe | C:\Windows\Installer\97449.msi | — | |
MD5:— | SHA256:— | |||
| 540 | tailscale-setup-1.76.0.exe | C:\Users\admin\AppData\Local\Temp\{12972FAC-C9D4-4416-9D3A-0FFA0163EDD1}\.cr\tailscale-setup-1.76.0.exe | executable | |
MD5:EBA0AC47D57CB95AFFCD337C6CF585F9 | SHA256:038B2BA8A9029A53B0F7994FC3E02FBB81E714CC2E566555C289BE8F184F3FB2 | |||
| 5324 | tailscale-setup-1.76.0.exe | C:\ProgramData\Package Cache\{09b5705c-a6ab-4e38-a14c-6e3dc3b0e8d1}\state.rsm | binary | |
MD5:082F66EE01D24395F659450478BE581B | SHA256:7629CA15944A760245FA4AD56EDCEC15714618B3C3EABDA99E67E67A22FEE08F | |||
| 3852 | tailscale-setup-1.76.0.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\103621DE9CD5414CC2538780B4B75751 | binary | |
MD5:3DFCA46E00FFA4795C72A41375F159D3 | SHA256:DCBA1A505396539BAC40A7253C9F5DCCF06CBB79957E21D56305E1FC3AF5F40E | |||
| 6952 | dllhost.exe | C:\System Volume Information\SPP\snapshot-2 | binary | |
MD5:D152891762D36D850D779DDAA1452058 | SHA256:FE121370BF6DBC973A7E9DFC2571ECC80C479B422C0F52C4BB615D81D8DDF38E | |||
| 6420 | msiexec.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\C8E534EE129F27D55460CE17FD628216_1130D9B25898B0DB0D4F04DC5B93F141 | der | |
MD5:72DB13DA5FFF7268CC2462BE217DAAC9 | SHA256:08441BFF263E0EDFF40C3D7B80737A4BFC3A0C93832DAF1166BB512045282735 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
13
TCP/UDP connections
59
DNS requests
25
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAn5bsKVVV8kdJ6vHl3O1J0%3D | unknown | — | — | whitelisted |
— | — | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
— | — | GET | 200 | 23.35.229.160:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 23.53.40.178:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 23.53.40.178:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D | unknown | — | — | whitelisted |
— | — | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTfIs%2BLjDtGwQ09XEB1Yeq%2BtX%2BBgQQU7NfjgtJxXWRM3y5nP%2Be6mK4cD08CEAitQLJg0pxMn17Nqb2Trtk%3D | unknown | — | — | whitelisted |
— | — | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSRXerF0eFeSWRripTgTkcJWMm7iQQUaDfg67Y7%2BF8Rhvv%2BYXsIiGX0TkICEAGSuURxj1Rlh15b2U5S69o%3D | unknown | — | — | whitelisted |
— | — | GET | 200 | 88.221.169.152:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
— | — | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBT3xL4LQLXDRDM9P665TW442vrsUQQUReuir%2FSSy4IxLVGLp6chnfNtyA8CEA6bGI750C3n79tQ4ghAGFo%3D | 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 |
|---|---|---|---|---|---|---|
— | — | 40.127.240.158:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 2.16.110.170:443 | — | Akamai International B.V. | DE | unknown |
— | — | 23.53.40.178:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
— | — | 23.35.229.160:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
4020 | svchost.exe | 239.255.255.250:1900 | — | — | — | whitelisted |
— | — | 20.190.159.75:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
— | — | 192.229.221.95:80 | ocsp.digicert.com | EDGECAST | US | whitelisted |
— | — | 184.28.89.167:443 | go.microsoft.com | AKAMAI-AS | US | whitelisted |
— | — | 2.23.209.160:443 | www.bing.com | Akamai International B.V. | GB | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
go.microsoft.com |
| whitelisted |
www.bing.com |
| whitelisted |
th.bing.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |