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:
remcos
rat
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

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.
  • MALICIOUS

    • REMCOS mutex has been found

      • wab.exe (PID: 1096)
    • REMCOS has been detected

      • wab.exe (PID: 1096)
    • REMCOS has been detected (YARA)

      • wab.exe (PID: 1096)
  • SUSPICIOUS

    • Connects to unusual port

      • wab.exe (PID: 1096)
    • There is functionality for taking screenshot (YARA)

      • wab.exe (PID: 1096)
  • INFO

    • Manual execution by a user

      • wab.exe (PID: 1096)
      • msinfo32.exe (PID: 2368)
    • Reads the software policy settings

      • rundll32.exe (PID: 2708)
      • SearchApp.exe (PID: 5328)
    • Checks proxy server information

      • rundll32.exe (PID: 2708)
    • Reads the computer name

      • wab.exe (PID: 1096)
    • Checks supported languages

      • wab.exe (PID: 1096)
      • SearchApp.exe (PID: 5328)
    • Reads the machine GUID from the registry

      • SearchApp.exe (PID: 5328)
    • Process checks computer location settings

      • SearchApp.exe (PID: 5328)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

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
No Malware configuration.

TRiD

.exe | Generic Win/DOS Executable (50)
.exe | DOS Executable Generic (49.9)

EXIF

EXE

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
No data.
screenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
140
Monitored processes
5
Malicious processes
1
Suspicious processes
0

Behavior graph

Click at the process to see the details
start rundll32.exe #REMCOS wab.exe msinfo32.exe no specs slui.exe no specs searchapp.exe

Process information

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
Images
c:\users\admin\appdata\local\temp\wc6206.tmp
c:\program files (x86)\windows mail\wab.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\user32.dll
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.exeexplorer.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
System Information
Version:
10.0.19041.3636 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\msinfo32.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\gdi32.dll
2708"C:\Windows\System32\rundll32.exe" vfcompat.dll, IEXC:\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
Images
c:\windows\system32\rundll32.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\shcore.dll
c:\windows\system32\imagehlp.dll
4816C:\WINDOWS\System32\slui.exe -EmbeddingC:\Windows\System32\slui.exesvchost.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Activation Client
Version:
10.0.19041.1 (WinBuild.160101.0800)
Modules
Images
c:\windows\system32\slui.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\user32.dll
5328"C:\WINDOWS\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mcaC:\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
Images
c:\windows\systemapps\microsoft.windows.search_cw5n1h2txyewy\searchapp.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\shcore.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\ntmarta.dll
c:\windows\system32\combase.dll
Total events
2 042
Read events
2 026
Write events
13
Delete events
3

Modification events

(PID) Process:(1096) wab.exeKey:HKEY_CURRENT_USER\SOFTWARE\Rmc-797PJS
Operation:writeName:exepath
Value:
A3056D99ECE7773697D16A99E889E4158EFB3F0865F9284BF17C22CCE3B921B38BCEAE8345F2BF9B97F90DEA6009B8CD4974916134AB7D0386F184F1D8445C3E762472979AE8D94791B61744848BBE51F8902287260E1642
(PID) Process:(1096) wab.exeKey:HKEY_CURRENT_USER\SOFTWARE\Rmc-797PJS
Operation:writeName:licence
Value:
59620C4CC275872C64E4CFC69D464182
(PID) Process:(5328) SearchApp.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Search\Flighting
Operation:delete valueName:CachedFeatureString
Value:
(PID) Process:(5328) SearchApp.exeKey: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:writeName:DefaultTokenId
Value:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Speech_OneCore\Recognizers\Tokens\MS-1033-110-WINMO-DNN
(PID) Process:(5328) SearchApp.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\SearchSettings
Operation:writeName:IsMSACloudSearchEnabled
Value:
0
(PID) Process:(5328) SearchApp.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\SearchSettings
Operation:writeName:IsAADCloudSearchEnabled
Value:
0
(PID) Process:(5328) SearchApp.exeKey:HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Search
Operation:writeName:CortanaStateLastRun
Value:
521E5F6800000000
(PID) Process:(5328) SearchApp.exeKey:HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.search_cw5n1h2txyewy\Internet Explorer\DOMStorage\bing.com
Operation:writeName:Total
Value:
1517
(PID) Process:(5328) SearchApp.exeKey:HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.search_cw5n1h2txyewy\Internet Explorer\DOMStorage\bing.com
Operation:writeName:Total
Value:
949
(PID) Process:(5328) SearchApp.exeKey:HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.search_cw5n1h2txyewy\Internet Explorer\DOMStorage\bing.com
Operation:writeName:Total
Value:
1675
Executable files
0
Suspicious files
6
Text files
1
Unknown types
0

Dropped files

PID
Process
Filename
Type
2708rundll32.exeC:\Users\admin\AppData\Local\Temp\wc6206.tmp
MD5:
SHA256:
5328SearchApp.exeC:\Users\admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187binary
MD5:FF3DFE916B6D66A815E8EE635894DED2
SHA256:224F6CFA5445F6DE7DF046C142D3285DACC88F276F2C441F3FA60BEC5B9B5118
5328SearchApp.exeC:\Users\admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\TokenBroker\Cache\fbaf94e759052658216786bfbabcdced1b67a5c2.tbresbinary
MD5:1AD3B7DA1D5E4CBF989EB21823F066B4
SHA256:69E4EEB7CF9534DF9BCC397983F75498EEB66D19E9832D2EAD29119FFEA21813
5328SearchApp.exeC:\Users\admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\Microsoft\CryptnetUrlCache\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_363582827213C09529A76F35FB615187binary
MD5:63735AD7CA4962AA5D065213815C0311
SHA256:696B5D170DBE386377E82353D7218102E17920B41E51CC037C868A1DB50D0BAB
5328SearchApp.exeC:\Users\admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\Microsoft\CryptnetUrlCache\MetaData\26C212D9399727259664BDFCA073966E_F9F7D6A7ECE73106D2A8C63168CDA10Dbinary
MD5:8B9E91468B2A01155A2B401A5EC61C0F
SHA256:A171F393A13EEF8F2B15CA83DAF04698BCA1FB249B32C77AFF07091E3A471BF7
5328SearchApp.exeC:\Users\admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\Microsoft\Internet Explorer\DOMStore\ZWUI0EBX\www.bing[1].xmltext
MD5:D506EA25EE063E9B27477E0F72A29558
SHA256:6F7EF967ED5A263C32238BB6F410DCFCC6E3F0BA3D9A5821891DD1C9769EF9FA
5328SearchApp.exeC:\Users\admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\INetCache\Q84V0JUH\fpconfig.min[1].jsonbinary
MD5:50904A06BC16803B621B17BB4A6B1C8D
SHA256:5D8CF6725BB1A25877323AB2E7C8E31A1539B14D6F05D300D63604CC66D7CA96
5328SearchApp.exeC:\Users\admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\Microsoft\CryptnetUrlCache\Content\26C212D9399727259664BDFCA073966E_F9F7D6A7ECE73106D2A8C63168CDA10Dbinary
MD5:E2EAB01D8F3704E1C1367FC67E7A7D9C
SHA256:19EE5D2AD2E3F924154C6239912110E4171B1722D6E7BB0FA9A115D82DE9C9C7
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
7
TCP/UDP connections
33
DNS requests
23
Threats
1

HTTP requests

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
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
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

DNS requests

Domain
IP
Reputation
settings-win.data.microsoft.com
  • 51.104.136.2
  • 20.73.194.208
  • 4.231.128.59
whitelisted
google.com
  • 216.58.212.174
whitelisted
www2.0zz0.com
  • 104.21.80.1
  • 104.21.48.1
  • 104.21.64.1
  • 104.21.16.1
  • 104.21.112.1
  • 104.21.96.1
  • 104.21.32.1
whitelisted
crl.microsoft.com
  • 23.48.23.166
  • 23.48.23.147
  • 23.48.23.177
  • 23.48.23.156
  • 23.48.23.173
  • 23.48.23.164
  • 23.48.23.143
  • 23.48.23.180
  • 23.48.23.145
whitelisted
www.microsoft.com
  • 69.192.161.161
  • 184.30.21.171
whitelisted
login.live.com
  • 40.126.32.76
  • 20.190.160.67
  • 20.190.160.132
  • 20.190.160.14
  • 40.126.32.133
  • 20.190.160.128
  • 20.190.160.64
  • 40.126.32.68
whitelisted
ocsp.digicert.com
  • 2.17.190.73
whitelisted
nexusrules.officeapps.live.com
  • 52.111.227.14
whitelisted
www.bing.com
  • 92.123.104.38
  • 92.123.104.31
  • 92.123.104.32
  • 92.123.104.63
  • 92.123.104.34
  • 92.123.104.33
whitelisted
slscr.update.microsoft.com
  • 52.149.20.212
whitelisted

Threats

PID
Process
Class
Message
Unknown Traffic
ET USER_AGENTS Microsoft Dr Watson User-Agent (MSDW)
No debug info