| File name: | WcInstaller.exe |
| Full analysis: | https://app.any.run/tasks/fba70e80-6e9f-443f-8855-698dca60c8df |
| 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: | August 13, 2019, 18:38:02 |
| 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: | 3A61797CFF12598B31443D5BCE21E470 |
| SHA1: | 90CD8FE538C6EAE59AAB414182A6EEBB0B5ACE6E |
| SHA256: | 2C8CB61F622F8C4C4BABC19EBF9FAD759D9913C4CA47AD393448C48BAD08D71A |
| SSDEEP: | 6144:m1OgDPdkBAFZWjadD4sKxJHbyDOLgI7VDh1R1KiScfwVVM20HdTA:m1OgLdanVwOv7KiwiA |
MALICIOUS
Application was dropped or rewritten from another process
- WebCompanionInstaller.exe (PID: 3604)
- WebCompanionInstaller.exe (PID: 1640)
- WcInstaller.exe (PID: 3788)
Loads dropped or rewritten executable
- WebCompanionInstaller.exe (PID: 1640)
Downloads executable files from the Internet
- WebCompanionInstaller.exe (PID: 3604)
SUSPICIOUS
Creates files in the program directory
- WebCompanionInstaller.exe (PID: 3604)
Executable content was dropped or overwritten
- WebCompanionInstaller.exe (PID: 3604)
- WcInstaller.exe (PID: 2916)
- WcInstaller.exe (PID: 3788)
Creates files in the Windows directory
- WebCompanionInstaller.exe (PID: 3604)
Executed as Windows Service
- PresentationFontCache.exe (PID: 3076)
Creates files in the user directory
- WebCompanionInstaller.exe (PID: 1640)
Reads internet explorer settings
- WebCompanionInstaller.exe (PID: 1640)
Reads Internet Cache Settings
- WebCompanionInstaller.exe (PID: 1640)
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: | 4.7.1987.3881 |
| ProductVersionNumber: | 4.7.1987.3881 |
| FileFlagsMask: | 0x003f |
| FileFlags: | (none) |
| FileOS: | Windows NT 32-bit |
| ObjectFileType: | Executable application |
| FileSubtype: | - |
| LanguageCode: | English (U.S.) |
| CharacterSet: | Unicode |
| FileVersion: | 4.7.1987.3881 |
| ProductVersion: | 4.7.1987.3881 |
| 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
42
Monitored processes
6
Malicious processes
3
Suspicious processes
1
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1640 | .\WebCompanionInstaller.exe --prod --nanouniqueid=1565721500210 --prod | C:\Users\admin\AppData\Local\Temp\7zSB857.tmp\WebCompanionInstaller.exe | WcInstaller.exe | ||||||||||||
User: admin Company: Lavasoft Integrity Level: HIGH Description: Web Companion Exit code: 0 Version: 4.6.1974.3869 Modules
| |||||||||||||||
| 2196 | "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: 4.7.1987.3881 Modules
| |||||||||||||||
| 2916 | "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: 4.7.1987.3881 Modules
| |||||||||||||||
| 3076 | 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
| |||||||||||||||
| 3604 | .\WebCompanionInstaller.exe --prod | C:\Users\admin\AppData\Local\Temp\7zS9F22.tmp\WebCompanionInstaller.exe | WcInstaller.exe | ||||||||||||
User: admin Company: Lavasoft Integrity Level: HIGH Description: Web Companion Exit code: 0 Version: 4.7.1987.3881 Modules
| |||||||||||||||
| 3788 | "C:\Users\admin\AppData\Local\Temp\wctmp_1097033925\WcInstaller.exe" --nanouniqueid=1565721500210 --prod | C:\Users\admin\AppData\Local\Temp\wctmp_1097033925\WcInstaller.exe | WebCompanionInstaller.exe | ||||||||||||
User: admin Company: Lavasoft Integrity Level: HIGH Description: Web Companion Installer Exit code: 0 Version: 4.6.1974.3869 Modules
| |||||||||||||||
Total events
623
Read events
570
Write events
52
Delete events
1
Modification events
| (PID) Process: | (3604) WebCompanionInstaller.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\72\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
| (PID) Process: | (3604) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Lavasoft\Web Companion |
| Operation: | write | Name: | MachineId |
Value: 735550bb-0faf-aab3-c4f6-bbac563dacb9 | |||
| (PID) Process: | (3604) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\WebCompanionInstaller_RASAPI32 |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (3604) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\WebCompanionInstaller_RASAPI32 |
| Operation: | write | Name: | EnableConsoleTracing |
Value: 0 | |||
| (PID) Process: | (3604) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\WebCompanionInstaller_RASAPI32 |
| Operation: | write | Name: | FileTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (3604) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\WebCompanionInstaller_RASAPI32 |
| Operation: | write | Name: | ConsoleTracingMask |
Value: 4294901760 | |||
| (PID) Process: | (3604) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\WebCompanionInstaller_RASAPI32 |
| Operation: | write | Name: | MaxFileSize |
Value: 1048576 | |||
| (PID) Process: | (3604) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\WebCompanionInstaller_RASAPI32 |
| Operation: | write | Name: | FileDirectory |
Value: %windir%\tracing | |||
| (PID) Process: | (3604) WebCompanionInstaller.exe | Key: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\WebCompanionInstaller_RASMANCS |
| Operation: | write | Name: | EnableFileTracing |
Value: 0 | |||
| (PID) Process: | (3604) 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
1
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 3604 | WebCompanionInstaller.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch.new | — | |
MD5:— | SHA256:— | |||
| 3604 | WebCompanionInstaller.exe | C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\enterprisesec.config.cch.new | — | |
MD5:— | SHA256:— | |||
| 3604 | WebCompanionInstaller.exe | C:\Users\admin\AppData\Local\Temp\wctmp_1097033925\WcInstaller.exe | executable | |
MD5:— | SHA256:— | |||
| 3604 | WebCompanionInstaller.exe | C:\ProgramData\Lavasoft\Web Companion\Options\Statistics.txt | text | |
MD5:— | SHA256:— | |||
| 3604 | WebCompanionInstaller.exe | C:\Users\admin\AppData\Local\Temp\WcInstaller.log | text | |
MD5:— | SHA256:— | |||
| 2916 | WcInstaller.exe | C:\Users\admin\AppData\Local\Temp\7zS9F22.tmp\WebCompanionInstaller.exe | executable | |
MD5:983126D093D759ABE0A803043A870BFB | SHA256:14BD9A54ECFB6888500B1B419354BC79406433A563FCEC564B630C7B5FB12C3A | |||
| 2916 | WcInstaller.exe | C:\Users\admin\AppData\Local\Temp\7zS9F22.tmp\es-ES\WebCompanionInstaller.resources.dll | executable | |
MD5:3B1F8153DB545AF1C33E745751DFC1EA | SHA256:4057FC8EA6DD8D7E047065F0080A2AD7199737DA707707A95C5265C94F7EDC89 | |||
| 2916 | WcInstaller.exe | C:\Users\admin\AppData\Local\Temp\7zS9F22.tmp\en-US\WebCompanionInstaller.resources.dll | executable | |
MD5:8E66595B9EBBC4000F43291272163DDD | SHA256:955F937A777811B06DEED765E247AA36F49BA29A68BD0C48CA0D7BF9BCE79951 | |||
| 2916 | WcInstaller.exe | C:\Users\admin\AppData\Local\Temp\7zS9F22.tmp\ja-JP\WebCompanionInstaller.resources.dll | executable | |
MD5:0F8B02AAB043304A3EB95672EA5E3B63 | SHA256:9006FFD5085F692047640AB90206FD4B539955C010D7AB0CECCE347157866AF4 | |||
| 2916 | WcInstaller.exe | C:\Users\admin\AppData\Local\Temp\7zS9F22.tmp\de-DE\WebCompanionInstaller.resources.dll | executable | |
MD5:56074F8728FBBBF61D6FA5C7242364BD | SHA256:6102C31CD6A2225F2A8DC1A57695F8A5B44F77FA6B980504BCBBA5D2DD8B7346 | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
8
TCP/UDP connections
9
DNS requests
7
Threats
3
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
3604 | WebCompanionInstaller.exe | GET | 200 | 104.18.88.101:80 | http://wcdownloadercdn.lavasoft.com/4.6.1974.3869/WcInstaller.exe | US | executable | 346 Kb | whitelisted |
1640 | 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 |
3604 | WebCompanionInstaller.exe | POST | 200 | 64.18.87.82:80 | http://wc-update-service.lavasoft.com/update.asmx | CA | xml | 1.45 Kb | whitelisted |
3604 | WebCompanionInstaller.exe | POST | 200 | 64.18.87.82:80 | http://wc-tracking.lavasoft.com/Install.asmx | CA | xml | 294 b | whitelisted |
1640 | WebCompanionInstaller.exe | POST | 200 | 64.18.87.82:80 | http://wc-tracking.lavasoft.com/Install.asmx | CA | xml | 294 b | whitelisted |
1640 | WebCompanionInstaller.exe | POST | 200 | 64.18.87.82:80 | http://wc-update-service.lavasoft.com/update.asmx | CA | xml | 1.45 Kb | whitelisted |
1640 | 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 |
1640 | WebCompanionInstaller.exe | GET | 200 | 104.17.178.102:80 | http://webcompanion.com/installer/css/styles.css?1565721530 | US | text | 928 b | malicious |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
3604 | WebCompanionInstaller.exe | 64.18.87.82:80 | wc-tracking.lavasoft.com | COGECODATA | CA | unknown |
3604 | WebCompanionInstaller.exe | 104.18.88.101:80 | wcdownloadercdn.lavasoft.com | Cloudflare Inc | US | shared |
1640 | WebCompanionInstaller.exe | 64.18.87.82:80 | wc-tracking.lavasoft.com | COGECODATA | CA | unknown |
1640 | WebCompanionInstaller.exe | 104.17.177.102:80 | www.webcompanion.com | Cloudflare Inc | US | shared |
1640 | WebCompanionInstaller.exe | 104.17.178.102:80 | www.webcompanion.com | Cloudflare Inc | US | shared |
1640 | 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 |
www.webcompanion.com |
| malicious |
webcompanion.com |
| malicious |
code.jquery.com |
| whitelisted |
Threats
PID | Process | Class | Message |
|---|---|---|---|
3604 | WebCompanionInstaller.exe | Potential Corporate Privacy Violation | ET POLICY PE EXE or DLL Windows file download HTTP |
3604 | WebCompanionInstaller.exe | Potentially Bad Traffic | ET INFO Executable Retrieved With Minimal HTTP Headers - Potential Second Stage Download |
1640 | WebCompanionInstaller.exe | Misc activity | SUSPICIOUS [PTsecurity] Cmd.Powershell.Download HTTP UserAgent (Win7) |
Process | Message |
|---|---|
WebCompanionInstaller.exe | Detecting windows culture
|
WebCompanionInstaller.exe | 8/13/2019 7:38:23 PM :-> Starting installer 4.7.1987.3881 with: .\WebCompanionInstaller.exe --prod, Run as admin: True
|
WebCompanionInstaller.exe | Detecting windows culture
|
WebCompanionInstaller.exe | 8/13/2019 7:38:26 PM :-> Starting installer 4.6.1974.3869 with: .\WebCompanionInstaller.exe --prod --nanouniqueid=1565721500210 --prod, Run as admin: True
|