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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 1 anti-malware scanner with very strong indications that the file is a potential threat. 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. While running, it connects to the Internet address offering.service.distributionengine.va.conduit-services.com on port 80 using the HTTP protocol.
Publisher:
ClientConnect LTD  (signed and verified)

MD5:
a5fd28f936a5878e139256dd26911874

SHA-1:
2ad0bafe1f2eff8287597a7e328b5351e2e5195a

SHA-256:
90c42fe37745be723387222696aad1aa4e7bdc0cdd1b047132e9084c7c7560f5

Scanner detections:
1 / 68

Status:
Adware

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

Analysis date:
4/24/2024 3:37:23 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Conduit (M)
16.8.22.8

File size:
173.3 KB (177,432 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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:acmVWD5ltbm+3Q7ywC8lRfc09TXSjMPe16hTQzVbwR7jp3w1zb+XDmVyFDgUAgUV:RmJ/k8nc0xXMMVZQzVEwsXaQDlAlV

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:
7.8358

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 URL.

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/330252739/?CurrentStep=1&TotalSteps=5&DMVersion=1.3.8.4_Perion.330251616.04&Language=None

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