| File name: | WcInstaller.exe |
| Full analysis: | https://app.any.run/tasks/d20821d8-c423-4724-b9ac-01b18f07c712 |
| Verdict: | Malicious activity |
| Threats: | A loader is malicious software that infiltrates devices to deliver malicious payloads. This malware is capable of infecting victims’ computers, analyzing their system information, and installing other types of threats, such as trojans or stealers. Criminals usually deliver loaders through phishing emails and links by relying on social engineering to trick users into downloading and running their executables. Loaders employ advanced evasion and persistence tactics to avoid detection. |
| Analysis date: | December 20, 2024, 09:56:43 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows, 5 sections |
| MD5: | 0D45450BBAD58F6F889EBB333CB3FE9E |
| SHA1: | C9EC93894902FC345DFF5D066A11D4908EBD6B7A |
| SHA256: | 62EDEF94E967D17AC0F939E5A85A6DB9C064382CAE446D530FEDE9C3C9F4CD59 |
| SSDEEP: | 24576:b6VnvKCp71e5Oxt/Y/ciGAOkP/WEVughNijvro6sof8:b6VnvKM71e5Oxt/Y/ciGAOkP/JughNik |
MALICIOUS
No malicious indicators.SUSPICIOUS
Checks Windows Trust Settings
- WebCompanionInstaller.exe (PID: 6324)
- WebCompanionInstaller.exe (PID: 6920)
Reads security settings of Internet Explorer
- WebCompanionInstaller.exe (PID: 6324)
- WebCompanionInstaller.exe (PID: 6920)
Executable content was dropped or overwritten
- WcInstaller.exe (PID: 6160)
- WebCompanionInstaller.exe (PID: 6324)
- WcInstaller.exe (PID: 6884)
- WebCompanionInstaller.exe (PID: 6920)
Process requests binary or script from the Internet
- WebCompanionInstaller.exe (PID: 6324)
Potential Corporate Privacy Violation
- WebCompanionInstaller.exe (PID: 6324)
Reads Microsoft Outlook installation path
- WebCompanionInstaller.exe (PID: 6920)
Executes as Windows Service
- PresentationFontCache.exe (PID: 7072)
Reads Internet Explorer settings
- WebCompanionInstaller.exe (PID: 6920)
INFO
The sample compiled with english language support
- WcInstaller.exe (PID: 6160)
- WebCompanionInstaller.exe (PID: 6324)
Checks supported languages
- WebCompanionInstaller.exe (PID: 6324)
- WcInstaller.exe (PID: 6160)
- WebCompanionInstaller.exe (PID: 6920)
- WebCompanionInstaller[1].exe (PID: 6604)
Reads the machine GUID from the registry
- WebCompanionInstaller.exe (PID: 6324)
- WebCompanionInstaller.exe (PID: 6920)
- PresentationFontCache.exe (PID: 7072)
- WebCompanionInstaller[1].exe (PID: 6604)
Create files in a temporary directory
- WebCompanionInstaller.exe (PID: 6324)
- WcInstaller.exe (PID: 6884)
Creates files in the program directory
- WebCompanionInstaller.exe (PID: 6324)
Sends debugging messages
- WebCompanionInstaller.exe (PID: 6324)
- WebCompanionInstaller.exe (PID: 6920)
- WebCompanionInstaller[1].exe (PID: 6604)
Reads the software policy settings
- WebCompanionInstaller.exe (PID: 6324)
- WebCompanionInstaller.exe (PID: 6920)
Disables trace logs
- WebCompanionInstaller.exe (PID: 6324)
Checks proxy server information
- WebCompanionInstaller.exe (PID: 6920)
Creates files or folders in the user directory
- WebCompanionInstaller.exe (PID: 6920)
Reads the computer name
- PresentationFontCache.exe (PID: 7072)
- WebCompanionInstaller[1].exe (PID: 6604)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .exe | | | InstallShield setup (36.8) |
|---|---|---|
| .exe | | | Win32 Executable MS Visual C++ (generic) (26.6) |
| .exe | | | Win64 Executable (generic) (23.6) |
| .dll | | | Win32 Dynamic Link Library (generic) (5.6) |
| .exe | | | Win32 Executable (generic) (3.8) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2011:04:18 18:54:06+00:00 |
| ImageFileCharacteristics: | No relocs, Executable, No line numbers, No symbols, Large address aware, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 6 |
| CodeSize: | 104448 |
| InitializedDataSize: | 60416 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x148d4 |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 8.9.0.1201 |
| ProductVersionNumber: | 8.9.0.1201 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Windows NT 32-bit |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | English (U.S.) |
| CharacterSet: | Unicode |
| FileVersion: | 8.9.0.1201 |
| ProductVersion: | 8.9.0.1201 |
| CompanyName: | Lavasoft |
| FileDescription: | Web Companion Installer |
| InternalName: | Installer.exe |
| LegalCopyright: | c Lavasoft Limited. All Rights Reserved. |
| OriginalFileName: | Installer.exe |
| ProductName: | Web Companion Installer |
Total processes
135
Monitored processes
7
Malicious processes
4
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4504 | "C:\Users\admin\AppData\Local\Temp\WcInstaller.exe" | C:\Users\admin\AppData\Local\Temp\WcInstaller.exe | — | explorer.exe | |||||||||||
User: admin Company: Lavasoft Integrity Level: MEDIUM Description: Web Companion Installer Exit code: 3221226540 Version: 8.9.0.1201 Modules
| |||||||||||||||
| 6160 | "C:\Users\admin\AppData\Local\Temp\WcInstaller.exe" | C:\Users\admin\AppData\Local\Temp\WcInstaller.exe | explorer.exe | ||||||||||||
User: admin Company: Lavasoft Integrity Level: HIGH Description: Web Companion Installer Exit code: 0 Version: 8.9.0.1201 Modules
| |||||||||||||||
| 6324 | .\WebCompanionInstaller.exe --prod | C:\Users\admin\AppData\Local\Temp\7zS01859533\WebCompanionInstaller.exe | WcInstaller.exe | ||||||||||||
User: admin Company: Lavasoft Integrity Level: HIGH Description: Web Companion Exit code: 0 Version: 8.9.0.1201 Modules
| |||||||||||||||
| 6604 | "C:\Users\admin\AppData\Local\Microsoft\Windows\INetCache\IE\E4DJRUXW\WebCompanionInstaller[1].exe" | C:\Users\admin\AppData\Local\Microsoft\Windows\INetCache\IE\E4DJRUXW\WebCompanionInstaller[1].exe | WebCompanionInstaller.exe | ||||||||||||
User: admin Company: Lavasoft Integrity Level: HIGH Description: Web Companion Version: 12.1.3.1037 Modules
| |||||||||||||||
| 6884 | "C:\Users\admin\AppData\Local\Temp\wctmp_374416951\WcInstaller.exe" --nanouniqueid=1734688611981 --prod | C:\Users\admin\AppData\Local\Temp\wctmp_374416951\WcInstaller.exe | WebCompanionInstaller.exe | ||||||||||||
User: admin Company: Lavasoft Integrity Level: HIGH Description: Web Companion Installer Version: 7.0.2417.4248 Modules
| |||||||||||||||
| 6920 | .\WebCompanionInstaller.exe --prod --nanouniqueid=1734688611981 --prod | C:\Users\admin\AppData\Local\Temp\7zS4EAAB703\WebCompanionInstaller.exe | WcInstaller.exe | ||||||||||||
User: admin Company: Lavasoft Integrity Level: HIGH Description: Web Companion Version: 7.0.2417.4248 Modules
| |||||||||||||||
| 7072 | C:\WINDOWS\Microsoft.Net\Framework64\v3.0\WPF\PresentationFontCache.exe | C:\Windows\Microsoft.NET\Framework64\v3.0\WPF\PresentationFontCache.exe | — | services.exe | |||||||||||
User: LOCAL SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: PresentationFontCache.exe Version: 3.0.6920.9141 built by: WinRelRS6 Modules
| |||||||||||||||
Total events
18 722
Read events
18 677
Write events
41
Delete events
4
Modification events
| (PID) Process: | (6324) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Lavasoft\Web Companion |
| Operation: | write | Name: | MachineId |
Value: ad1f12af-3f36-3c28-b351-2ce4355f42c2 | |||
| (PID) Process: | (6324) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\WebCompanionInstaller_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (6324) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\WebCompanionInstaller_RASAPI32 |
| Operation: | write | Name: | EnableAutoFileTracing |
Value: 0 | |||
| (PID) Process: | (6324) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\WebCompanionInstaller_RASAPI32 |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (6324) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\WebCompanionInstaller_RASAPI32 |
| Operation: | write | Name: | FileTracingMask |
Value: | |||
| (PID) Process: | (6324) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\WebCompanionInstaller_RASAPI32 |
| Operation: | write | Name: | ConsoleTracingMask |
Value: | |||
| (PID) Process: | (6324) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\WebCompanionInstaller_RASAPI32 |
| Operation: | write | Name: | MaxFileSize |
Value: 1048576 | |||
| (PID) Process: | (6324) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\WebCompanionInstaller_RASAPI32 |
| Operation: | write | Name: | FileDirectory |
Value: %windir%\tracing | |||
| (PID) Process: | (6324) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\WebCompanionInstaller_RASMANCS |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (6324) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Tracing\WebCompanionInstaller_RASMANCS |
| Operation: | write | Name: | EnableAutoFileTracing |
Value: 0 | |||
Executable files
28
Suspicious files
60
Text files
24
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 6160 | WcInstaller.exe | C:\Users\admin\AppData\Local\Temp\7zS01859533\en-US\WebCompanionInstaller.resources.dll | executable | |
MD5:DFBEC54F561770CFC58EFCB94BC78916 | SHA256:CC625E594020B6B1B0918B3B91494D7BD7BA1C1B42F0801EDA00873B2AAE633D | |||
| 6160 | WcInstaller.exe | C:\Users\admin\AppData\Local\Temp\7zS01859533\ja-JP\WebCompanionInstaller.resources.dll | executable | |
MD5:7AC711D9380B785717AA978936886F82 | SHA256:5426694F67F4025D7DCE718022F8FE47DE0A10C6F2CACAEAE9F35099258EA543 | |||
| 6160 | WcInstaller.exe | C:\Users\admin\AppData\Local\Temp\7zS01859533\de-DE\WebCompanionInstaller.resources.dll | executable | |
MD5:352908530F77475E978860F360EC7290 | SHA256:30E9E01E9F5A64DE38CAAE805A098FEA68730B8B8B0ABB667F02C152C41D8E24 | |||
| 6324 | WebCompanionInstaller.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\AF360AACB1570042DEFBC833317997D0_DF48483754A6AE209A217FF51855DB26 | binary | |
MD5:D9E493DE8189AEE8C63202A6FEE63170 | SHA256:DE227EA9B8BE029BAF448F0B2BE44D358037EED16E3DE82FCCEC3830F1154679 | |||
| 6160 | WcInstaller.exe | C:\Users\admin\AppData\Local\Temp\7zS01859533\Newtonsoft.Json.dll | executable | |
MD5:3A4649717BDAF9E86DC93CFBCF8A4BAA | SHA256:F2D262CD645B7888B88FFA0E799E3E77C982BD2B09E68AD625B218D1435B6F6B | |||
| 6324 | WebCompanionInstaller.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\A37B8BA80004D3266CB4D93B2052DC10_EBDB5A7037F08CDFB408DBFC0D44B43D | der | |
MD5:06F09E25373E7F1E65AD72464C94A695 | SHA256:1E31536AE72FA688AB515EA4E841022E550E13605126B37B2253626D1A286E87 | |||
| 6160 | WcInstaller.exe | C:\Users\admin\AppData\Local\Temp\7zS01859533\it-IT\WebCompanionInstaller.resources.dll | executable | |
MD5:51ACCFA80C64AF944665593304D0F6C3 | SHA256:B28CF384E96421B62310A96A566A5FF8CDF3FB3659BD0F06C411670D8E40FE44 | |||
| 6160 | WcInstaller.exe | C:\Users\admin\AppData\Local\Temp\7zS01859533\tr-TR\WebCompanionInstaller.resources.dll | executable | |
MD5:BBA94A8FDBA46D14FD49495068A872A7 | SHA256:DF665507E86838918F113A84AF7F088125B22A37ED27CFAE6684C72126EA36BD | |||
| 6160 | WcInstaller.exe | C:\Users\admin\AppData\Local\Temp\7zS01859533\fr-CA\WebCompanionInstaller.resources.dll | executable | |
MD5:A204D5F89160479418A89B4C46A50E19 | SHA256:F497A2969A09EA45481B01BE5ECB40044B16C5BE631EBE843AB624448BBB2DB2 | |||
| 6324 | WebCompanionInstaller.exe | C:\Users\admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\026A86A161D256DBB33076EDF20C0E5E_86AB612B21DEDF3B8CD155ED2E4114FF | binary | |
MD5:1070B07840C324BDE9DF5DC5073ED30F | SHA256:264306CC116DBA34EA95DCEA82A355D924333B84C97F9B2F1EB36FD21B6D70F9 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
44
TCP/UDP connections
62
DNS requests
43
Threats
3
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
— | — | GET | 200 | 23.48.23.156:80 | http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl | unknown | — | — | whitelisted |
6324 | WebCompanionInstaller.exe | GET | 200 | 23.192.154.58:80 | http://ocsp.entrust.net/MFEwTzBNMEswSTAJBgUrDgMCGgUABBRr2bwARTxMtEy9aspRAZg5QFhagQQUgrrWPZfOn89x6JI3r%2F2ztWk1V88CEDWvt3udNB9q%2FI%2BERqsxNSs%3D | unknown | — | — | whitelisted |
6324 | WebCompanionInstaller.exe | GET | 200 | 23.192.154.58:80 | http://ocsp.entrust.net/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTLXNCzDvBhHecWjg70iJhBW0InywQUanImetAe733nO2lR1GyNn5ASZqsCEE5A5DdU7eaMAAAAAFHTlH8%3D | unknown | — | — | whitelisted |
— | — | GET | 200 | 184.30.21.171:80 | http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl | unknown | — | — | whitelisted |
6324 | WebCompanionInstaller.exe | GET | 200 | 23.192.154.58:80 | http://ocsp.entrust.net/MFEwTzBNMEswSTAJBgUrDgMCGgUABBRp%2BmQDKauE4nIg%2FgknZHuBlLkfKgQUzolPglGqFaKEYsoxI2HSYfv4%2FngCECXQy517DWxwDNrkPSQ6scY%3D | unknown | — | — | whitelisted |
5064 | SearchApp.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D | unknown | — | — | whitelisted |
1176 | svchost.exe | GET | 200 | 192.229.221.95:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
6324 | WebCompanionInstaller.exe | POST | 200 | 64.18.87.82:80 | http://wc-update-service.lavasoft.com/update.asmx | unknown | — | — | whitelisted |
6920 | WebCompanionInstaller.exe | GET | 200 | 192.229.221.95:80 | http://s1.symcb.com/pca3-g5.crl | unknown | — | — | whitelisted |
6920 | WebCompanionInstaller.exe | GET | 200 | 152.199.19.74:80 | http://s2.symcb.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBS56bKHAoUD%2BOyl%2B0LhPg9JxyQm4gQUf9Nlp8Ld7LvwMAnzQzn6Aq8zMTMCED141%2Fl2SWCyYX308B7Khio%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 |
|---|---|---|---|---|---|---|
— | — | 192.168.100.255:137 | — | — | — | whitelisted |
132 | svchost.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
4712 | MoUsoCoreWorker.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
— | — | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
— | — | 23.48.23.156:80 | crl.microsoft.com | Akamai International B.V. | DE | whitelisted |
— | — | 184.30.21.171:80 | www.microsoft.com | AKAMAI-AS | DE | whitelisted |
4 | System | 192.168.100.255:138 | — | — | — | whitelisted |
5064 | SearchApp.exe | 104.126.37.144:443 | www.bing.com | Akamai International B.V. | DE | whitelisted |
6324 | WebCompanionInstaller.exe | 23.192.154.58:80 | ocsp.entrust.net | AKAMAI-AS | GB | whitelisted |
1076 | svchost.exe | 23.218.210.69:443 | go.microsoft.com | AKAMAI-AS | DE | whitelisted |
DNS requests
Domain | IP | Reputation |
|---|---|---|
settings-win.data.microsoft.com |
| whitelisted |
google.com |
| whitelisted |
crl.microsoft.com |
| whitelisted |
www.microsoft.com |
| whitelisted |
www.bing.com |
| whitelisted |
ocsp.entrust.net |
| whitelisted |
go.microsoft.com |
| whitelisted |
login.live.com |
| whitelisted |
ocsp.digicert.com |
| whitelisted |
wc-update-service.lavasoft.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
6324 | WebCompanionInstaller.exe | Potential Corporate Privacy Violation | ET POLICY PE EXE or DLL Windows file download HTTP |
6324 | WebCompanionInstaller.exe | Potentially Bad Traffic | ET INFO Executable Retrieved With Minimal HTTP Headers - Potential Second Stage Download |
2192 | svchost.exe | Not Suspicious Traffic | INFO [ANY.RUN] Google Hosted Libraries (ajax .googleapis .com) |
Process | Message |
|---|---|
WebCompanionInstaller.exe | Detecting windows culture
|
WebCompanionInstaller.exe | 12/20/2024 9:56:52 AM :-> Starting installer 8.9.0.1201 with: .\WebCompanionInstaller.exe --prod, Run as admin: True
|
WebCompanionInstaller.exe | Failed to report progress in SendPostRequest: System.Net.WebException: The remote name could not be resolved: 'flow.lavasoft.com'
at System.Net.HttpWebRequest.GetRequestStream(TransportContext& context)
at System.Net.HttpWebRequest.GetRequestStream()
at WebCompanionInstaller.Utils.RestUtils.SendPostRequest(String url, String body)
|
WebCompanionInstaller.exe | Detecting windows culture
|
WebCompanionInstaller.exe | 12/20/2024 9:56:55 AM :-> Starting installer 7.0.2417.4248 with: .\WebCompanionInstaller.exe --prod --nanouniqueid=1734688611981 --prod, Run as admin: True
|
WebCompanionInstaller.exe | Failed to report progress in SendPostRequest: System.Net.WebException: The remote name could not be resolved: 'flow.lavasoft.com'
at System.Net.HttpWebRequest.GetRequestStream(TransportContext& context)
at System.Net.HttpWebRequest.GetRequestStream()
at WebCompanionInstaller.Utils.RestUtils.SendPostRequest(String url, String body)
|