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stub.exe

Conduit Ltd.

The file belongs to the Conduit API platform, a utility that bundles and monetizes search toolbars and web browser extensions. The application stub.exe by Conduit has been detected as a potentially unwanted program by 5 anti-malware scanners. The program is a setup application that uses the Conduit Setup Manager installer. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from toolbarstubdownload.conduit-services.com and multiple other hosts. While running, it connects to the Internet address cms.distributionengine.conduit-services.com on port 80 using the HTTP protocol.
Publisher:
Conduit  (signed by Conduit Ltd.)

Version:
5.7.4.3

MD5:
d21b80bbf2eacdd730e53f05790876f2

SHA-1:
64b1f5eddc07d832a00c1ffaeb0e31bdeb351990

SHA-256:
525c1f4d9c72ad5c9f1646a813c38127cfad4d2fff256aaf8061a0fa06dfb826

Scanner detections:
5 / 68

Status:
Potentially unwanted

Explanation:
Bundles the Conduit Toolbar and/or Conduit Search Protect.

Description:
This 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
11/5/2024 4:40:27 AM UTC  (today)

Scan engine
Detection
Engine version

Boost by Reason
Adware.Conduit.E
2013.8.29.0

Dr.Web
Adware.Conduit.3
9.0.1.0330

herdProtect (fuzzy)
variant of mconduitinstaller.exe (Adware)
2013.12.20.16

Reason Heuristics
PUP.Conduit.E
14.8.7.22

VIPRE Antivirus
Conduit
22590

File size:
87.2 KB (89,296 bytes)

Copyright:
Conduit Ltd.

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Conduit Setup Manager (using Nullsoft Install System)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\stub.exe

Digital Signature
Signed by:
Conduit Ltd.

Authority:
VeriSign, Inc.

Valid from:
1/2/2013 4:00:00 PM

Valid to:
4/3/2016 4:59:59 PM

Subject:
CN=Conduit Ltd., OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Conduit Ltd., L=Ness Ziona, S=Israel, C=IL

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
3A82654719D8F75B59134F7B66465210

File PE Metadata
Compilation timestamp:
2/24/2012 11:20:04 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
1536:zGarUa6LowvuhdNYh2Gf9rg6hzGPnvCw1smS5Zj5svPRSEvrGpwGgRhm:p5BuYAVrgUCPnvCnmgZW5SEvrGmZR8

Entry address:
0x38AF

Entry point:
81, EC, D4, 02, 00, 00, 53, 55, 56, 57, 6A, 20, 33, ED, 5E, 89, 6C, 24, 18, C7, 44, 24, 10, 68, A2, 40, 00, 89, 6C, 24, 14, FF, 15, 30, 90, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 90, 40, 00, 55, FF, 15, C0, 92, 40, 00, 6A, 08, A3, 98, EB, 47, 00, E8, 36, 2A, 00, 00, 55, 68, B4, 02, 00, 00, A3, B0, EA, 47, 00, 8D, 44, 24, 38, 50, 55, 68, 64, A2, 40, 00, FF, 15, 84, 91, 40, 00, 68, 4C, A2, 40, 00, 68, A0, 6A, 47, 00, E8, 18, 27, 00, 00, FF, 15, B0, 90, 40, 00, 50, BF, A0, F0, 4C, 00, 57, E8, 06, 27, 00, 00...
 
[+]

Entropy:
7.2096

Packer / compiler:
Nullsoft install system v2.x

Code size:
29 KB (29,696 bytes)

The file stub.exe has been seen being distributed by the following 7 URLs.

http://toolbarstubdownload.conduit-services.com/.../ToolbarStubDownload?TestGroupID=73&ctid=ct3309350&ministubversion=6.0.2.0

http://toolbarstubdownload.conduit-services.com/.../ToolbarStubDownload?TestGroupID=14&ctid=ct3309350&ministubversion=6.0.2.0

http://toolbarstubdownload.conduit-services.com/.../ToolbarStubDownload?TestGroupID=87&ctid=ct3309350&ministubversion=6.0.2.0

http://toolbarstubdownload.conduit-services.com/.../ToolbarStubDownload?TestGroupID=57&ctid=ct3298567&ministubversion=6.0.2.0

http://toolbarstubdownload.conduit-services.com/.../ToolbarStubDownload?TestGroupID=5&ctid=ct3309350&ministubversion=6.0.2.0

http://toolbarstubdownload.conduit-services.com/.../ToolbarStubDownload?TestGroupID=11&ctid=ct3309350&ministubversion=6.0.2.0

http://toolbarstubdownload.conduit-services.com/.../ToolbarStubDownload?TestGroupID=94&ctid=ct3309350&ministubversion=6.0.2.0

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to offering.service.distributionengine.conduit-services.com  (199.101.114.147:80)

 
http://offering.service.distributionengine.conduit-services.com/DecisionEngine.ashx

TCP (HTTP):
Connects to cms.distributionengine.conduit-services.com  (54.243.251.51:80)

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