| File name: | BlockHosts.exe |
| Full analysis: | https://app.any.run/tasks/cf4be8a9-5770-4426-9a9c-89cfc6f2a199 |
| Verdict: | Malicious activity |
| Analysis date: | June 15, 2025, 22:24:16 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive, 5 sections |
| MD5: | 2AE0A5DB7B30BFEDF194EAAFAA340147 |
| SHA1: | E631029F85D14223CADC5BF09AB11B1C64041EBB |
| SHA256: | 8CC9140B961C8B649DDCB784ECA892DBA6D4392ABF27BFE9BDDC8AC510D40A17 |
| SSDEEP: | 1536:uoOs6ECKHGuXo1Hq5t61DpYPLboR+fuVm:WPKHGuIq5o1DpuL8hm |
MALICIOUS
No malicious indicators.SUSPICIOUS
Executable content was dropped or overwritten
- BlockHosts.exe (PID: 7032)
The process creates files with name similar to system file names
- BlockHosts.exe (PID: 7032)
Malware-specific behavior (creating "System.dll" in Temp)
- BlockHosts.exe (PID: 7032)
Uses TASKKILL.EXE to kill process
- BlockHosts.exe (PID: 7032)
Reads security settings of Internet Explorer
- BlockHosts.exe (PID: 7032)
Creates files in the driver directory
- BlockHosts.exe (PID: 7032)
INFO
The sample compiled with english language support
- BlockHosts.exe (PID: 7032)
Checks supported languages
- BlockHosts.exe (PID: 7032)
Reads the computer name
- BlockHosts.exe (PID: 7032)
Create files in a temporary directory
- BlockHosts.exe (PID: 7032)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | Win32 Executable MS Visual C++ (generic) (67.4) |
|---|---|---|
| .dll | | | Win32 Dynamic Link Library (generic) (14.2) |
| .exe | | | Win32 Executable (generic) (9.7) |
| .exe | | | Generic Win/DOS Executable (4.3) |
| .exe | | | DOS Executable Generic (4.3) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2021:07:24 22:21:04+00:00 |
| ImageFileCharacteristics: | No relocs, Executable, No line numbers, No symbols, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 6 |
| CodeSize: | 26624 |
| InitializedDataSize: | 186880 |
| UninitializedDataSize: | 2048 |
| EntryPoint: | 0x34c5 |
| OSVersion: | 4 |
| ImageVersion: | 6 |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 2024.5.20531.0 |
| ProductVersionNumber: | 2024.5.20531.0 |
| FileFlagsMask: | 0x0000 |
| FileFlags: | (none) |
| FileOS: | Win32 |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | English (U.S.) |
| CharacterSet: | Unicode |
| FileDescription: | Block hosts for Adobe Acrobat Pro. |
| FileVersion: | 2024.005.20531.0 |
| LegalCopyright: | 7997 |
| ProductName: | Block Hosts |
| ProductVersion: | 2024.005.20531.0 |
Total processes
146
Monitored processes
9
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2320 | 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 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 3608 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | taskkill.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Console Window Host Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 3752 | "C:\Users\admin\AppData\Local\Temp\BlockHosts.exe" | C:\Users\admin\AppData\Local\Temp\BlockHosts.exe | — | explorer.exe | |||||||||||
User: admin Integrity Level: MEDIUM Description: Block hosts for Adobe Acrobat Pro. Exit code: 3221226540 Version: 2024.005.20531.0 Modules
| |||||||||||||||
| 4684 | taskkill /F /IM AGSService.exe | C:\Windows\SysWOW64\taskkill.exe | — | BlockHosts.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Terminates Processes Exit code: 128 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5168 | taskkill /F /IM armsvc.exe | C:\Windows\SysWOW64\taskkill.exe | — | BlockHosts.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Terminates Processes Exit code: 128 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5900 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | taskkill.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Console Window Host Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 6104 | \??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1 | C:\Windows\System32\conhost.exe | — | taskkill.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Console Window Host Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 6852 | taskkill /F /IM AGMService.exe | C:\Windows\SysWOW64\taskkill.exe | — | BlockHosts.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: Terminates Processes Exit code: 128 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 7032 | "C:\Users\admin\AppData\Local\Temp\BlockHosts.exe" | C:\Users\admin\AppData\Local\Temp\BlockHosts.exe | explorer.exe | ||||||||||||
User: admin Integrity Level: HIGH Description: Block hosts for Adobe Acrobat Pro. Exit code: 0 Version: 2024.005.20531.0 Modules
| |||||||||||||||
Total events
758
Read events
758
Write events
0
Delete events
0
Modification events
Executable files
2
Suspicious files
0
Text files
4
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 7032 | BlockHosts.exe | C:\Users\admin\AppData\Local\Temp\nse592D.tmp\nsExec.dll | executable | |
MD5:EC9C99216EF11CDD85965E78BC797D2C | SHA256:C1B7C3EF8B77A5BB335DC9EC9C3546B249014DDE43AA2A9ED719B4D5933741DF | |||
| 7032 | BlockHosts.exe | C:\Windows\System32\drivers\etc\hosts | text | |
MD5:304882351EAB7CDD76C540A3C3CAB6B0 | SHA256:B13005DFDF26E8568ED4B89DDB12C522E90ED48CA8DEC6BBB5AA20A5042B2421 | |||
| 7032 | BlockHosts.exe | C:\Users\admin\AppData\Local\Temp\hosts | text | |
MD5:C40F0E533A52F202035621D27E732F5A | SHA256:408442168118E82FAF7D419AA4F0D8FA04F45A5E6D0E7065A9CDC723782C5AE3 | |||
| 7032 | BlockHosts.exe | C:\Windows\System32\drivers\etc\nsc6236.tmp | text | |
MD5:C40F0E533A52F202035621D27E732F5A | SHA256:408442168118E82FAF7D419AA4F0D8FA04F45A5E6D0E7065A9CDC723782C5AE3 | |||
| 7032 | BlockHosts.exe | C:\Users\admin\AppData\Local\Temp\nse592D.tmp\System.dll | executable | |
MD5:6E55A6E7C3FDBD244042EB15CB1EC739 | SHA256:ACF90AB6F4EDC687E94AAF604D05E16E6CFB5E35873783B50C66F307A35C6506 | |||
| 7032 | BlockHosts.exe | C:\Users\admin\AppData\Local\Temp\AcrobatPro.txt | text | |
MD5:055C8F7C8B55C55D04D35439124C17C4 | SHA256:DC6A591F84D17E68B3FC48854BDC0FCB3E19AB18F487A491914AB06A654C2428 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
5
TCP/UDP connections
23
DNS requests
15
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
1268 | svchost.exe | GET | 200 | 184.24.77.29:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
3100 | svchost.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
1268 | svchost.exe | GET | 200 | 95.101.149.131:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
3048 | SIHClient.exe | GET | 200 | 95.101.149.131:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
3048 | SIHClient.exe | GET | 200 | 95.101.149.131:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.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 |
|---|---|---|---|---|---|---|
5944 | MoUsoCoreWorker.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
1268 | svchost.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
3396 | RUXIMICS.exe | 4.231.128.59:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
3100 | svchost.exe | 40.126.31.128:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
3100 | svchost.exe | 2.17.190.73:80 | ocsp.digicert.com | AKAMAI-AS | DE | whitelisted |
2336 | svchost.exe | 172.211.123.250:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | FR | whitelisted |
1268 | svchost.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
1268 | svchost.exe | 184.24.77.29:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
client.wns.windows.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
nexusrules.officeapps.live.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| whitelisted |