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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 7 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.spccinta.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:
2.4.2.4

MD5:
cb216aa50479aafaaaa3f69262417a9b

SHA-1:
c94c1fbe8eb2cc566bca9bbca33d255bf9abe9f6

SHA-256:
e02d1756987065550a6a056139085abf93e80fb6942ea395789dd3b06c7f78fc

Scanner detections:
7 / 68

Status:
Adware

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

Analysis date:
4/19/2024 9:30:16 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
Generic
2015.0.3415

Baidu Antivirus
Trojan.Win32.ClientConnect
4.0.3.14713

Dr.Web
Adware.Conduit.101
9.0.1.0194

ESET NOD32
Win32/ClientConnect (variant)
8.10088

Malwarebytes
PUP.Optional.Conduit.A
v2014.07.13.05

Reason Heuristics
PUP.ClientConnect.G
14.7.13.5

VIPRE Antivirus
Conduit
31232

File size:
170.1 KB (174,184 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 1:00:00 AM

Valid to:
4/30/2016 12:59:59 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 3:31:20 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
3072:0cmVWD5ltbmP3Q7yzCt/rmqjj+Xnvaong/h3lLBi1qA/mh1sd7XKM9E5RPVHgZow:LmJILt/rxjCXvGhm1qWLaBLPVHg7

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...
 
[+]

Entropy:
7.8255

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.

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

https://sp-storage.conduit-services.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/7705876/?CurrentStep=1&TotalSteps=5&DMVersion=1.7.8.4_Perion.7704753.04&Language=None

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