| File name: | vfcompat.dll |
| Full analysis: | https://app.any.run/tasks/3e8d1768-e5cf-4192-8c3d-faeb378c05ac |
| Verdict: | Malicious activity |
| Threats: | Remote access trojans (RATs) are a type of malware that enables attackers to establish complete to partial control over infected computers. Such malicious programs often have a modular design, offering a wide range of functionalities for conducting illicit activities on compromised systems. Some of the most common features of RATs include access to the users’ data, webcam, and keystrokes. This malware is often distributed through phishing emails and links. |
| Analysis date: | June 27, 2025, 22:41:58 |
| OS: | Windows 10 Professional (build: 19044, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32+ executable (DLL) (GUI) x86-64, for MS Windows, 3 sections |
| MD5: | C14E25FBE264D836C8815A3E28B43940 |
| SHA1: | 30891D87A1F6C798E9297B5858A72A511FD68C62 |
| SHA256: | E026D5FA9E9BB111944B65813541C5ED39E1D2C52602B1008856A9C5DF7A1A16 |
| SSDEEP: | 12288:2oypbEFG5GjffbkThCsUwpNueugPmBH6hS2FW3WU13sE:2oy4JsUwpNuLgPmBH6hS2w3WU13s |
| .exe | | | Generic Win/DOS Executable (50) |
|---|---|---|
| .exe | | | DOS Executable Generic (49.9) |
| MachineType: | AMD AMD64 |
|---|---|
| TimeStamp: | 2025:06:27 22:39:08+00:00 |
| ImageFileCharacteristics: | Executable, Large address aware, DLL |
| PEType: | PE32+ |
| LinkerVersion: | 14 |
| CodeSize: | 660992 |
| InitializedDataSize: | 105984 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x90500 |
| OSVersion: | 6 |
| ImageVersion: | - |
| SubsystemVersion: | 6 |
| Subsystem: | Windows GUI |
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1096 | "C:\Program Files (x86)\Windows Mail\wab.exe" | C:\Program Files (x86)\Windows Mail\wab.exe | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows Contacts Version: 10.0.19041.3636 (WinBuild.160101.0800) Modules
Remcos(PID) Process(1096) wab.exe C2 (1)172.16.219.134:9348 BotnetRemoteHost Options Connect_interval1 Install_flagFalse Install_HKCU\RunTrue Install_HKLM\RunTrue Install_HKLM\Explorer\Run1 Setup_path%LOCALAPPDATA% Copy_fileremcos.exe Startup_valueRemcos Hide_fileFalse Mutex_nameRmc-797PJS Keylog_flag0 Keylog_path%LOCALAPPDATA% Keylog_filelogs.dat Keylog_cryptFalse Hide_keylogFalse Screenshot_flagFalse Screenshot_time5 Take_ScreenshotFalse Screenshot_path%APPDATA% Screenshot_fileScreenshots Screenshot_cryptFalse Mouse_optionFalse Delete_fileFalse Audio_record_time5 Audio_path%ProgramFiles% Audio_dirMicRecords Connect_delay0 Copy_dirRemcos Keylog_dirremcos Max_keylog_file100000 | |||||||||||||||
| 2368 | "C:\WINDOWS\system32\msinfo32.exe" | C:\Windows\System32\msinfo32.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: System Information Version: 10.0.19041.3636 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 2708 | "C:\Windows\System32\rundll32.exe" vfcompat.dll, IEX | C:\Windows\System32\rundll32.exe | explorer.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Windows host process (Rundll32) Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 4816 | 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
| |||||||||||||||
| 5328 | "C:\WINDOWS\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca | C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe | svchost.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: LOW Description: Search application Version: 10.0.19041.3996 (WinBuild.160101.0800) Modules
| |||||||||||||||
| (PID) Process: | (1096) wab.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Rmc-797PJS |
| Operation: | write | Name: | exepath |
Value: A3056D99ECE7773697D16A99E889E4158EFB3F0865F9284BF17C22CCE3B921B38BCEAE8345F2BF9B97F90DEA6009B8CD4974916134AB7D0386F184F1D8445C3E762472979AE8D94791B61744848BBE51F8902287260E1642 | |||
| (PID) Process: | (1096) wab.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Rmc-797PJS |
| Operation: | write | Name: | licence |
Value: 59620C4CC275872C64E4CFC69D464182 | |||
| (PID) Process: | (5328) SearchApp.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Search\Flighting |
| Operation: | delete value | Name: | CachedFeatureString |
Value: | |||
| (PID) Process: | (5328) SearchApp.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.search_cw5n1h2txyewy\SOFTWARE\Microsoft\Speech_OneCore\Isolated\A1hdl50UVDh2ZbG324Nx-6fZgntcGnHOs5kHLdmaJYE\HKEY_CURRENT_USER\SOFTWARE\Microsoft\Speech_OneCore\Recognizers |
| Operation: | write | Name: | DefaultTokenId |
Value: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Speech_OneCore\Recognizers\Tokens\MS-1033-110-WINMO-DNN | |||
| (PID) Process: | (5328) SearchApp.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\SearchSettings |
| Operation: | write | Name: | IsMSACloudSearchEnabled |
Value: 0 | |||
| (PID) Process: | (5328) SearchApp.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\SearchSettings |
| Operation: | write | Name: | IsAADCloudSearchEnabled |
Value: 0 | |||
| (PID) Process: | (5328) SearchApp.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Search |
| Operation: | write | Name: | CortanaStateLastRun |
Value: 521E5F6800000000 | |||
| (PID) Process: | (5328) SearchApp.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.search_cw5n1h2txyewy\Internet Explorer\DOMStorage\bing.com |
| Operation: | write | Name: | Total |
Value: 1517 | |||
| (PID) Process: | (5328) SearchApp.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.search_cw5n1h2txyewy\Internet Explorer\DOMStorage\bing.com |
| Operation: | write | Name: | Total |
Value: 949 | |||
| (PID) Process: | (5328) SearchApp.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.search_cw5n1h2txyewy\Internet Explorer\DOMStorage\bing.com |
| Operation: | write | Name: | Total |
Value: 1675 | |||
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 2708 | rundll32.exe | C:\Users\admin\AppData\Local\Temp\wc6206.tmp | — | |
MD5:— | SHA256:— | |||
| 5328 | SearchApp.exe | C:\Users\admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187 | binary | |
MD5:FF3DFE916B6D66A815E8EE635894DED2 | SHA256:224F6CFA5445F6DE7DF046C142D3285DACC88F276F2C441F3FA60BEC5B9B5118 | |||
| 5328 | SearchApp.exe | C:\Users\admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\TokenBroker\Cache\fbaf94e759052658216786bfbabcdced1b67a5c2.tbres | binary | |
MD5:1AD3B7DA1D5E4CBF989EB21823F066B4 | SHA256:69E4EEB7CF9534DF9BCC397983F75498EEB66D19E9832D2EAD29119FFEA21813 | |||
| 5328 | SearchApp.exe | C:\Users\admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\Microsoft\CryptnetUrlCache\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187 | binary | |
MD5:63735AD7CA4962AA5D065213815C0311 | SHA256:696B5D170DBE386377E82353D7218102E17920B41E51CC037C868A1DB50D0BAB | |||
| 5328 | SearchApp.exe | C:\Users\admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\Microsoft\CryptnetUrlCache\MetaData\26C212D9399727259664BDFCA073966E_F9F7D6A7ECE73106D2A8C63168CDA10D | binary | |
MD5:8B9E91468B2A01155A2B401A5EC61C0F | SHA256:A171F393A13EEF8F2B15CA83DAF04698BCA1FB249B32C77AFF07091E3A471BF7 | |||
| 5328 | SearchApp.exe | C:\Users\admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\Microsoft\Internet Explorer\DOMStore\ZWUI0EBX\www.bing[1].xml | text | |
MD5:D506EA25EE063E9B27477E0F72A29558 | SHA256:6F7EF967ED5A263C32238BB6F410DCFCC6E3F0BA3D9A5821891DD1C9769EF9FA | |||
| 5328 | SearchApp.exe | C:\Users\admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\INetCache\Q84V0JUH\fpconfig.min[1].json | binary | |
MD5:50904A06BC16803B621B17BB4A6B1C8D | SHA256:5D8CF6725BB1A25877323AB2E7C8E31A1539B14D6F05D300D63604CC66D7CA96 | |||
| 5328 | SearchApp.exe | C:\Users\admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\Microsoft\CryptnetUrlCache\Content\26C212D9399727259664BDFCA073966E_F9F7D6A7ECE73106D2A8C63168CDA10D | binary | |
MD5:E2EAB01D8F3704E1C1367FC67E7A7D9C | SHA256:19EE5D2AD2E3F924154C6239912110E4171B1722D6E7BB0FA9A115D82DE9C9C7 | |||
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
1268 | svchost.exe | GET | 200 | 69.192.161.161:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
1268 | svchost.exe | GET | 200 | 23.48.23.166:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
5328 | SearchApp.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D | unknown | — | — | whitelisted |
7020 | svchost.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
3876 | 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 |
3876 | 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 |
5328 | SearchApp.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%3D | unknown | — | — | whitelisted |
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
4 | System | 192.168.100.255:137 | — | — | — | whitelisted |
5944 | MoUsoCoreWorker.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
1268 | svchost.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
4860 | RUXIMICS.exe | 51.104.136.2:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | whitelisted |
2708 | rundll32.exe | 104.21.80.1:443 | www2.0zz0.com | CLOUDFLARENET | — | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
1096 | wab.exe | 172.16.219.134:9348 | — | — | — | unknown |
1268 | svchost.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
1268 | svchost.exe | 23.48.23.166:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
1268 | svchost.exe | 69.192.161.161:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
www2.0zz0.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
nexusrules.officeapps.live.com |
| whitelisted |
www.bing.com |
| whitelisted |
slscr.update.microsoft.com |
| whitelisted |
PID | Process | Class | Message |
|---|---|---|---|
— | — | Unknown Traffic | ET USER_AGENTS Microsoft Dr Watson User-Agent (MSDW) |