» ybuol47h.exe
Overview
Analysis
File Details
Network (1)

ybuol47h.exe

Nadav Kashtan

This is a WebPick installer that bundles (with very minimal user consent) a number of adware browser extensions which inject ads in the browser. The file ybuol47h.exe, “Installer for StarApp” by Nadav Kashtan 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 (Tarma) 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:

ybuol47h.exe

Publisher:

StarApp (signed by Nadav Kashtan)

Product:

StarApp

Description:

Installer for StarApp

Version:

2013.8.6.1937

MD5:

d432f424b1fa5ac2fabe2f964cee2cd1

SHA-1:

474cdd93311f560d779104a63f6f3eb5e2079a06

SHA-256:

2e71c66a0320c30c68aaefe5c432c56c6bf77ca31ea664b08ecdb2dc6a8d9c75

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, hosted on TusFiles.

Analysis date:

4/19/2024 5:36:33 AM UTC (today)

Scan engine

Detection

Engine version

Reason Heuristics

PUP.WebPick.NadavKashtan.Installer (M)

16.2.15.9

File size:

307.9 KB (315,272 bytes)

Product version:

1.0.0.1

Original file name:

TSULoader.exe

Installer:

WebPick InstalleRex (Tarma)

Language:

Language Neutral

Common path:

C:\users\{user}\appdata\local\temp\ybuol47h.exe.part

Digital Signature

Signed by:

Nadav Kashtan

Authority:

COMODO CA Limited

Valid from:

11/5/2012 1:00:00 AM

Valid to:

11/6/2013 12:59:59 AM

Subject:

CN=Nadav Kashtan, O=Nadav Kashtan, STREET=Bizron 38, L=Tel Aviv, S=center, PostalCode=67894, C=IL

Issuer:

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

Serial number:

00F861471B38887DE98076AFF491B1B1B3

File PE Metadata

Compilation timestamp:

3/12/2013 9:51:45 AM

OS version:

4.0

OS bitness:

Win32

Subsystem:

Windows GUI

Linker version:

8.0

CTPH (ssdeep):

6144:Or4i6Y0JQBkQRl7174NpNUM+UHs+g+nbjyNLL7lo/lpb2nMZRHf:Or4i63yRl1uqM+gs+lbjyNLLRylpKm1

Entry address:

0x14DB

Entry point:

55, 8B, EC, 81, EC, 2C, 06, 00, 00, 53, 56, 33, DB, 57, 66, 89, 9D, DC, FB, FF, FF, 89, 5D, F4, 89, 5D, FC, FF, 15, 74, 30, 40, 00, A3, 08, 44, 40, 00, FF, 15, 70, 30, 40, 00, 8B, F8, 8D, 45, EC, 50, FF, 15, 6C, 30, 40, 00, FF, 15, 68, 30, 40, 00, 8B, F0, F7, D6, 33, F7, FF, 15, 64, 30, 40, 00, 33, F0, 8B, 45, F0, 33, 45, EC, 68, 04, 01, 00, 00, 33, F0, 8D, 85, D4, F9, FF, FF, 50, 53, FF, 15, 60, 30, 40, 00, 85, C0, 75, 41, FF, 15, 5C, 30, 40, 00, 83, F8, 78, 75, 1A, 68, A8, 32, 40, 00, E8, 43, FB, FF, FF... 
[+]

Developed / compiled with:

Microsoft Visual C++

Code size:

7.5 KB (7,680 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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