tb_ktaby.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 tb_ktaby.exe by Conduit has been detected as a potentially unwanted program by 7 anti-malware scanners. The program is a setup application that uses the Conduit Setup Manager installer. The file has been seen being downloaded from free.ktaby.com. 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)

MD5:
362f5c1ccb2eb7f923a66c13ec930c7d

SHA-1:
23004a4d365494a9325f375f4b74c10aa5df33a5

SHA-256:
66b7384b22ae9c54a67ff77188ee743a3302d40299c4af6fadd27f75f4faf84e

Scanner detections:
7 / 68

Status:
Potentially unwanted

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

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
12/18/2018 1:10:56 PM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
Adware.Conduit.6
9.0.1.0100

Malwarebytes
PUP.Optional.Conduit.A
v2014.04.10.08

Panda Antivirus
Adware/Conduit
14.04.10.08

Reason Heuristics
PUP.Conduit.I
14.8.7.22

SUPERAntiSpyware
Adware.Conduit/Variant
10673

Trend Micro House Call
TROJ_GEN.F47V0111
7.2.100

VIPRE Antivirus
Conduit
25372

File size:
640.7 KB (656,032 bytes)

File type:
Executable application (Win32 EXE)

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

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\tb_ktaby.exe

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
1/3/2013 1:00:00 AM

Valid to:
4/4/2016 12:59:59 AM

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 8:19:59 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:RE6MmNmMPPoW2GlOacMsmH2rhYsBmWbbypdXEDxx/jzRRcXKXeHcUTXnu:RtMQPPJ2GlpJ5WfBmWvypdXE7FSKXVYu

Entry address:
0x39E3

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, 91, 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, C0, 82, 40, 00, 6A, 08, A3, B8, 2E, 47, 00, E8, 37, 2A, 00, 00, 55, 68, B4, 02, 00, 00, A3, D0, 2D, 47, 00, 8D, 44, 24, 38, 50, 55, 68, 1C, 93, 40, 00, FF, 15, 84, 81, 40, 00, 68, 04, 93, 40, 00, 68, C0, AD, 46, 00, E8, 19, 27, 00, 00, FF, 15, B4, 80, 40, 00, 50, BF, A0, 30, 4C, 00, 57, E8, 07, 27, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
28 KB (28,672 bytes)

The file tb_ktaby.exe has been seen being distributed by the following URL.

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

TCP (HTTP):
Connects to ude.conduit-data.com  (195.78.120.173:80)

TCP (HTTP):

 
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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