» ytbmk_setup.exe
Overview
Analysis
File Details
Network (1)

ytbmk_setup.exe

Ostap Laponov

This program bundles adware during the download and install process using the InstaleRex pay-per-install app monetizer. The application ytbmk_setup.exe by Ostap Laponov 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 WebPick InstalleRex installer. It is also typically executed from the user's temporary directory. While running, it connects to the Internet address r1.stylezip.info on port 80 using the HTTP protocol.

File name:

ytbmk_setup.exe

Publisher:

Ostap Laponov (signed and verified)

MD5:

86e163741a104eabfb685be27da865fd

SHA-1:

9adb666fd5820c9ae02df1c2303d57a701a540e4

SHA-256:

6b3cc98aae1928952981def9895ddfcb9b5655890626c833ae82ddbbe333b54f

Scanner detections:

1 / 68

Status:

Adware

Explanation:

Uses Web-Pick's 'File Product', an Installer which wraps various products and downloads and installs it silently through the process.

Description:

This 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:

12/25/2024 1:24:02 PM UTC (today)

Scan engine

Detection

Engine version

Reason Heuristics

PUP.WebPick (M)

17.3.8.22

File size:

658.8 KB (674,648 bytes)

File type:

Executable application (Win32 EXE)

Bundler/Installer:

WebPick InstalleRex

Common path:

C:\users\{user}\appdata\local\temp\{random}.tmp\addons\ytbmk_setup.exe

Digital Signature

Signed by:

Ostap Laponov

Authority:

COMODO CA Limited

Valid from:

9/9/2013 3:00:00 AM

Valid to:

9/10/2014 2:59:59 AM

Subject:

CN=Ostap Laponov, O=Ostap Laponov, STREET=Minskаya 16, L=Kiev, S=Kiev, PostalCode=04078, C=UA

Issuer:

CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:

00EA64F94CDE70375038736C9F1C0960DF

File PE Metadata

Compilation timestamp:

12/2/2013 12:48:22 PM

OS version:

5.1

OS bitness:

Win32

Subsystem:

Windows GUI

Linker version:

10.0

Entry address:

0xF8F7

Entry point:

E8, 38, 3F, 00, 00, E9, 89, FE, FF, FF, 8B, FF, 55, 8B, EC, 8B, 45, 08, 33, C9, 3B, 04, CD, 28, F0, 41, 00, 74, 13, 41, 83, F9, 2D, 72, F1, 8D, 48, ED, 83, F9, 11, 77, 0E, 6A, 0D, 58, 5D, C3, 8B, 04, CD, 2C, F0, 41, 00, 5D, C3, 05, 44, FF, FF, FF, 6A, 0E, 59, 3B, C8, 1B, C0, 23, C1, 83, C0, 08, 5D, C3, E8, DC, 07, 00, 00, 85, C0, 75, 06, B8, 90, F1, 41, 00, C3, 83, C0, 08, C3, E8, C9, 07, 00, 00, 85, C0, 75, 06, B8, 94, F1, 41, 00, C3, 83, C0, 0C, C3, 8B, FF, 55, 8B, EC, 56, E8, E2, FF, FF, FF, 8B, 4D, 08... 
[+]

Entropy:

7.8621 (probably packed)

Code size:

92.5 KB (94,720 bytes)

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

TCP (HTTP):

Connects to r1.stylezip.info (54.186.255.26:80)

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