| File name: | WcInstaller.exe |
| Full analysis: | https://app.any.run/tasks/e23ad84e-47ec-454f-86fd-3c9b410c681d |
| 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: | March 04, 2019, 17:54:53 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows |
| MD5: | ADA0D519112CAF395F6DDDFBD0DF6200 |
| SHA1: | 3EDB0621A21C26811EE5B645CCBBF5671327CCDA |
| SHA256: | 9FEA7124B7F691FA33A96789D0239DF05E69E66B8A3C33A76B222D66A17A7A36 |
| SSDEEP: | 6144:11OgDPdkBAFZWjadD4sK2ysUoq8VyZUKPpq/nIslDrTeoLgQuR6g0XoOH:11OgLda4b2ZLxIIsdTbCZOH |
MALICIOUS
Application was dropped or rewritten from another process
- WebCompanionInstaller.exe (PID: 3444)
- WcInstaller.exe (PID: 3704)
- WebCompanionInstaller.exe (PID: 3224)
Downloads executable files from the Internet
- WebCompanionInstaller.exe (PID: 3444)
Loads dropped or rewritten executable
- WebCompanionInstaller.exe (PID: 3224)
SUSPICIOUS
Creates files in the Windows directory
- WebCompanionInstaller.exe (PID: 3444)
Executable content was dropped or overwritten
- WcInstaller.exe (PID: 2200)
- WcInstaller.exe (PID: 3704)
- WebCompanionInstaller.exe (PID: 3444)
Creates files in the program directory
- WebCompanionInstaller.exe (PID: 3444)
Reads internet explorer settings
- WebCompanionInstaller.exe (PID: 3224)
Reads Internet Cache Settings
- WebCompanionInstaller.exe (PID: 3224)
Creates files in the user directory
- WebCompanionInstaller.exe (PID: 3224)
INFO
No info indicators.
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) (42.2) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (37.3) |
| .dll | | | Win32 Dynamic Link Library (generic) (8.8) |
| .exe | | | Win32 Executable (generic) (6) |
| .exe | | | Generic Win/DOS Executable (2.7) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2010:11:18 17:27:35+01:00 |
| PEType: | PE32 |
| LinkerVersion: | 6 |
| CodeSize: | 104960 |
| InitializedDataSize: | 58880 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x14b04 |
| OSVersion: | 4 |
| ImageVersion: | - |
| SubsystemVersion: | 4 |
| Subsystem: | Windows GUI |
| FileVersionNumber: | 4.6.1966.3854 |
| ProductVersionNumber: | 4.6.1966.3854 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Windows NT 32-bit |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | English (U.S.) |
| CharacterSet: | Unicode |
| FileVersion: | 4.6.1966.3854 |
| ProductVersion: | 4.6.1966.3854 |
| 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
41
Monitored processes
7
Malicious processes
3
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2200 | "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: 4.6.1966.3854 Modules
| |||||||||||||||
| 2256 | C:\Windows\system32\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503} | C:\Windows\system32\DllHost.exe | — | svchost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: COM Surrogate Exit code: 0 Version: 6.1.7600.16385 (win7_rtm.090713-1255) Modules
| |||||||||||||||
| 2404 | C:\Windows\Microsoft.Net\Framework\v3.0\WPF\PresentationFontCache.exe | C:\Windows\Microsoft.Net\Framework\v3.0\WPF\PresentationFontCache.exe | — | services.exe | |||||||||||
User: LOCAL SERVICE Company: Microsoft Corporation Integrity Level: SYSTEM Description: PresentationFontCache.exe Exit code: 0 Version: 3.0.6920.4902 built by: NetFXw7 Modules
| |||||||||||||||
| 2816 | "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: 4.6.1966.3854 Modules
| |||||||||||||||
| 3224 | .\WebCompanionInstaller.exe --prod --nanouniqueid=1551722106915 --prod | C:\Users\admin\AppData\Local\Temp\7zSF0D9.tmp\WebCompanionInstaller.exe | WcInstaller.exe | ||||||||||||
User: admin Company: Lavasoft Integrity Level: HIGH Description: Web Companion Exit code: 0 Version: 4.5.1957.3838 Modules
| |||||||||||||||
| 3444 | .\WebCompanionInstaller.exe --prod | C:\Users\admin\AppData\Local\Temp\7zSD40A.tmp\WebCompanionInstaller.exe | WcInstaller.exe | ||||||||||||
User: admin Company: Lavasoft Integrity Level: HIGH Description: Web Companion Exit code: 0 Version: 4.6.1966.3854 Modules
| |||||||||||||||
| 3704 | "C:\Users\admin\AppData\Local\Temp\wctmp_949408614\WcInstaller.exe" --nanouniqueid=1551722106915 --prod | C:\Users\admin\AppData\Local\Temp\wctmp_949408614\WcInstaller.exe | WebCompanionInstaller.exe | ||||||||||||
User: admin Company: Lavasoft Integrity Level: HIGH Description: Web Companion Installer Exit code: 0 Version: 4.5.1957.3838 Modules
| |||||||||||||||
Total events
674
Read events
626
Write events
48
Delete events
0
Modification events
| (PID) Process: | (3444) WebCompanionInstaller.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\5F\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (3444) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Lavasoft\Web Companion |
| Operation: | write | Name: | MachineId |
Value: 735550bb-0faf-aab3-c4f6-bbac563dacb9 | |||
| (PID) Process: | (3444) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\WebCompanionInstaller_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (3444) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\WebCompanionInstaller_RASAPI32 |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (3444) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\WebCompanionInstaller_RASAPI32 |
| Operation: | write | Name: | FileTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (3444) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\WebCompanionInstaller_RASAPI32 |
| Operation: | write | Name: | ConsoleTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (3444) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\WebCompanionInstaller_RASAPI32 |
| Operation: | write | Name: | MaxFileSize |
Value: 1048576 | |||
| (PID) Process: | (3444) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\WebCompanionInstaller_RASAPI32 |
| Operation: | write | Name: | FileDirectory |
Value: %windir%\tracing | |||
| (PID) Process: | (3444) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\WebCompanionInstaller_RASMANCS |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (3444) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\WebCompanionInstaller_RASMANCS |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
Executable files
25
Suspicious files
2
Text files
8
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3444 | WebCompanionInstaller.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch.new | — | |
MD5:— | SHA256:— | |||
| 2200 | WcInstaller.exe | C:\Users\admin\AppData\Local\Temp\7zSD40A.tmp\fr-CA\WebCompanionInstaller.resources.dll | executable | |
MD5:— | SHA256:— | |||
| 3444 | WebCompanionInstaller.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\enterprisesec.config.cch.new | — | |
MD5:— | SHA256:— | |||
| 2200 | WcInstaller.exe | C:\Users\admin\AppData\Local\Temp\7zSD40A.tmp\en-US\WebCompanionInstaller.resources.dll | executable | |
MD5:— | SHA256:— | |||
| 2200 | WcInstaller.exe | C:\Users\admin\AppData\Local\Temp\7zSD40A.tmp\ICSharpCode.SharpZipLib.dll | executable | |
MD5:— | SHA256:— | |||
| 2200 | WcInstaller.exe | C:\Users\admin\AppData\Local\Temp\7zSD40A.tmp\WebCompanionInstaller.exe | executable | |
MD5:— | SHA256:— | |||
| 2200 | WcInstaller.exe | C:\Users\admin\AppData\Local\Temp\7zSD40A.tmp\de-DE\WebCompanionInstaller.resources.dll | executable | |
MD5:— | SHA256:— | |||
| 2200 | WcInstaller.exe | C:\Users\admin\AppData\Local\Temp\7zSD40A.tmp\ru-RU\WebCompanionInstaller.resources.dll | executable | |
MD5:— | SHA256:— | |||
| 2200 | WcInstaller.exe | C:\Users\admin\AppData\Local\Temp\7zSD40A.tmp\tr-TR\WebCompanionInstaller.resources.dll | executable | |
MD5:— | SHA256:— | |||
| 2200 | WcInstaller.exe | C:\Users\admin\AppData\Local\Temp\7zSD40A.tmp\es-ES\WebCompanionInstaller.resources.dll | executable | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
10
TCP/UDP connections
11
DNS requests
10
Threats
3
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
3444 | WebCompanionInstaller.exe | GET | 200 | 104.17.60.19:80 | http://wcdownloadercdn.lavasoft.com/4.5.1957.3838/WcInstaller.exe | US | executable | 346 Kb | whitelisted |
3224 | WebCompanionInstaller.exe | POST | — | 72.55.154.82:80 | http://wc-tracking.lavasoft.com/Install.asmx | CA | — | — | whitelisted |
3224 | WebCompanionInstaller.exe | GET | 200 | 104.17.177.102:80 | http://webcompanion.com/installer/css/styles.css?1551722160 | US | text | 928 b | malicious |
3444 | WebCompanionInstaller.exe | POST | 200 | 72.55.154.81:80 | http://wc-tracking.lavasoft.com/Install.asmx | CA | xml | 294 b | whitelisted |
3224 | WebCompanionInstaller.exe | POST | 200 | 72.55.154.82:80 | http://wc-update-service.lavasoft.com/update.asmx | CA | xml | 1.45 Kb | whitelisted |
3224 | WebCompanionInstaller.exe | POST | 200 | 72.55.154.82:80 | http://wc-tracking.lavasoft.com/Install.asmx | CA | xml | 294 b | whitelisted |
3224 | WebCompanionInstaller.exe | POST | 200 | 72.55.154.82:80 | http://wc-tracking.lavasoft.com/Install.asmx | CA | xml | 294 b | whitelisted |
3444 | WebCompanionInstaller.exe | POST | 200 | 72.55.154.81:80 | http://wc-update-service.lavasoft.com/update.asmx | CA | xml | 1.45 Kb | whitelisted |
3224 | WebCompanionInstaller.exe | GET | 200 | 205.185.208.52:80 | http://code.jquery.com/jquery-1.11.2.min.js | US | text | 32.4 Kb | whitelisted |
3224 | WebCompanionInstaller.exe | GET | 200 | 104.17.177.102:80 | http://www.webcompanion.com/installer/consent_2?culture=en&hp=1&se=1 | US | html | 1.33 Kb | malicious |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
3444 | WebCompanionInstaller.exe | 72.55.154.81:80 | wc-tracking.lavasoft.com | iWeb Technologies Inc. | CA | unknown |
3444 | WebCompanionInstaller.exe | 104.17.60.19:80 | wcdownloadercdn.lavasoft.com | Cloudflare Inc | US | shared |
3224 | WebCompanionInstaller.exe | 72.55.154.82:80 | wc-tracking.lavasoft.com | iWeb Technologies Inc. | CA | unknown |
3224 | WebCompanionInstaller.exe | 72.55.154.81:80 | wc-tracking.lavasoft.com | iWeb Technologies Inc. | CA | unknown |
3224 | WebCompanionInstaller.exe | 104.17.177.102:80 | www.webcompanion.com | Cloudflare Inc | US | shared |
3224 | WebCompanionInstaller.exe | 205.185.208.52:80 | code.jquery.com | Highwinds Network Group, Inc. | US | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
wc-tracking.lavasoft.com |
| whitelisted |
wc-update-service.lavasoft.com |
| whitelisted |
wcdownloadercdn.lavasoft.com |
| whitelisted |
dns.msftncsi.com |
| shared |
www.webcompanion.com |
| malicious |
code.jquery.com |
| whitelisted |
webcompanion.com |
| malicious |
Threats
PID | Process | Class | Message |
|---|---|---|---|
3444 | WebCompanionInstaller.exe | Potential Corporate Privacy Violation | ET POLICY PE EXE or DLL Windows file download HTTP |
3444 | WebCompanionInstaller.exe | Potentially Bad Traffic | ET INFO Executable Retrieved With Minimal HTTP Headers - Potential Second Stage Download |
3224 | WebCompanionInstaller.exe | Misc activity | SUSPICIOUS [PTsecurity] Cmd.Powershell.Download HTTP UserAgent (Win7) |
Process | Message |
|---|---|
WebCompanionInstaller.exe | Detecting windows culture
|
WebCompanionInstaller.exe | 3/4/2019 5:55:10 PM :-> Starting installer 4.6.1966.3854 with: .\WebCompanionInstaller.exe --prod, Run as admin: True
|
WebCompanionInstaller.exe | Detecting windows culture
|
WebCompanionInstaller.exe | 3/4/2019 5:55:14 PM :-> Starting installer 4.5.1957.3838 with: .\WebCompanionInstaller.exe --prod --nanouniqueid=1551722106915 --prod, Run as admin: True
|
WebCompanionInstaller.exe | Preparing for installing Web Companion
|
WebCompanionInstaller.exe | 3/4/2019 5:56:03 PM :-> Generating Machine and Install Id ...
|
WebCompanionInstaller.exe | 3/4/2019 5:56:03 PM :-> Machine Id and Install Id has been generated
|
WebCompanionInstaller.exe | 3/4/2019 5:56:04 PM :-> Checking prerequisites ...
|
WebCompanionInstaller.exe | 3/4/2019 5:56:04 PM :-> Antivirus not detected
|
WebCompanionInstaller.exe | 3/4/2019 5:56:04 PM :-> vm_check False
|