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spstub.exe

ClientConnect LTD

The file belongs to the ClientConnect (Conduit/Perion) platform, a utility that bundles and monetizes search toolbars and browser add-ons. The application spstub.exe by ClientConnect has been detected as adware by 8 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. It is also typically executed from an Internet Explorer cache folder. The file has been seen being downloaded from sp-storage.conduit-services.com and multiple other hosts. While running, it connects to the Internet address offering.service.distributionengine.va.conduit-services.com on port 80 using the HTTP protocol.
Publisher:
Client Connect  (signed by ClientConnect LTD)

Description:
Search Protect

Version:
2.4.3.0

MD5:
a90faa6449a4beca4466564510991bb1

SHA-1:
f3a08b0c349e56e78028dae8a60bdb269d78a8f0

SHA-256:
40a6a55cde6c5a433767ee3f922aa60faa61b7892db9d90313c10ede50281168

Scanner detections:
8 / 68

Status:
Adware

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

Analysis date:
4/24/2024 7:46:58 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
Generic
2015.0.3390

Baidu Antivirus
PUA.Win32.ClientConnect
4.0.3.1486

Dr.Web
Adware.Conduit.101
9.0.1.0218

ESET NOD32
Win32/ClientConnect (variant)
8.10213

IKARUS anti.virus
PUA.ClientConnect
t3scan.1.6.1.0

Malwarebytes
PUP.Optional.Conduit.A
v2014.08.06.04

Reason Heuristics
PUP.ClientConnect.G
14.8.6.16

VIPRE Antivirus
Conduit
31978

File size:
173.2 KB (177,352 bytes)

Copyright:
© 2014 Client Connect Ltd.

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Language Neutral

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

Digital Signature
Signed by:
ClientConnect LTD

Authority:
Symantec Corporation

Valid from:
4/29/2014 2:00:00 AM

Valid to:
4/30/2016 1:59:59 AM

Subject:
CN=ClientConnect LTD, OU=SPStub, O=ClientConnect LTD, L=Ness Ziona, S=Israel, C=IL

Issuer:
CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
36AC210D3412C8646EB3F4C8EE541402

File PE Metadata
Compilation timestamp:
7/6/2011 4:31:20 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
3072:vcmVWD5ltbmP3Q7yXCaaWuwH5P0yYjC1wqXOZjZeRvkRnCKWC7emvSypVUrL/:UmJI3aaWuk5PBJ+qX1kRnhSypVUf

Entry address:
0x354B

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, D8, 84, 40, 00, 89, 6C, 24, 14, FF, 15, 30, 80, 40, 00, 68, 01, 80, 00, 00, FF, 15, B8, 80, 40, 00, 55, FF, 15, B0, 82, 40, 00, 6A, 08, A3, 98, 06, 47, 00, E8, 67, 27, 00, 00, 55, 68, B4, 02, 00, 00, A3, B0, 05, 47, 00, 8D, 44, 24, 38, 50, 55, 68, 1C, 86, 40, 00, FF, 15, 80, 81, 40, 00, 68, 04, 86, 40, 00, 68, A0, 85, 46, 00, E8, 35, 26, 00, 00, FF, 15, B4, 80, 40, 00, 50, BF, A0, 10, 4C, 00, 57, E8, 23, 26, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
25 KB (25,600 bytes)

The file spstub.exe has been seen being distributed by the following 2 URLs.

https://sp-storage.conduit-services.com/.../spstub.exe

http://sp-storage.spccinta.com/.../spstub.exe

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

TCP (HTTP):
Connects to ude.conduit-data.com  (54.197.244.95:80)

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

TCP (HTTP):
Connects to cms.distributionengine.conduit-services.com  (23.67.242.59:80)

 
http://cms.distributionengine.conduit-services.com//MainOffer/8642670/?CurrentStep=1&TotalSteps=5&DMVersion=1.6.8.4_Perion.8641547.04&Language=None

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