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embededstub.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 embededstub.exe by Conduit has been detected as a potentially unwanted program by 6 anti-malware scanners. This is a self-extracting archive and installer and has been known to bundle potentially unwanted software. It is also typically executed from an Internet Explorer cache folder. The file has been seen being downloaded from d3emsmln8xfj03.cloudfront.net 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 Ltd.  (signed and verified)

Description:
custominstaller

Version:
1.11.1.1

MD5:
1ebef54645f3fb38e17cf3de583be1de

SHA-1:
21fdf7b2d86b2def9c74925b4a70a10eb6a181fb

SHA-256:
4c9b67d52af6825f7f9bf08db7ca75bf0a2658b86c403936e3a6b6fa539a94a4

Scanner detections:
6 / 68

Status:
Potentially unwanted

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

Analysis date:
4/26/2024 12:28:11 AM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
Adware.Conduit.3
9.0.1.051

Malwarebytes
PUP.Optional.Conduit
v2014.02.20.05

Panda Antivirus
Adware/Conduit
14.02.20.05

Reason Heuristics
PUP.custominstaller.Conduit.L
14.8.7.22

Trend Micro House Call
TROJ_GEN.F47V1230
7.2.51

VIPRE Antivirus
Conduit
26162

File size:
647 KB (662,576 bytes)

Copyright:
Conduit Ltd.

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\embededstub.exe

Digital Signature
Signed by:
Conduit Ltd.

Authority:
VeriSign, Inc.

Valid from:
1/2/2013 5:00:00 PM

Valid to:
4/3/2016 5:59:59 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 12:20:04 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:A0g5dGYuPHDufi7ZdavO0zSNVfs/yiET4sWPNGYc7Oxa7aV/ZHlyIJSruFMglpuk:bscYuPH6i7ZgWISNVfs/yia4DgpOAChV

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:
7.9637  (probably packed)

Code size:
29 KB (29,696 bytes)

The file embededstub.exe has been seen being distributed by the following 3 URLs.

http://d3emsmln8xfj03.cloudfront.net/bundles/.../embededstub.exe

https://install.oinstaller5.com/bundles/.../embededstub.exe

http://cdn.install.oibundles2.com/bundles/.../embededstub.exe

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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