» setup.exe
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setup.exe

Stepan Rybin

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 application setup.exe, “Installer for FreeWorldApp” by Stepan Rybin 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 an Internet Explorer cache folder. The file has been seen being downloaded from creatorhelpusa.xyz. While running, it connects to the Internet address r1.stylezip.info on port 80 using the HTTP protocol.

File name:

setup.exe

Publisher:

FreeWorldApp (signed by Stepan Rybin)

Product:

FreeWorldApp

Description:

Installer for FreeWorldApp

Version:

2014.9.28.1126

MD5:

bf1d13bb3e4af976f1df1b12a9e75027

SHA-1:

a2354fc2901799ce0f3a5ddfd32d6bb45b71012f

SHA-256:

b0be4696c2be4b0dcd3ea9b9fc197351679be38272bc8078d0f85373b126a606

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:

11/27/2024 5:49:55 AM UTC (today)

Scan engine

Detection

Engine version

Reason Heuristics

Adware (M)

16.8.9.12

File size:

314 KB (321,552 bytes)

Product version:

1.0.0.3

Original file name:

TSULoader.exe

File type:

Executable application (Win32 EXE)

Installer:

WebPick InstalleRex (Tarma)

Language:

Language Neutral

Common path:

C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\setup.exe

Digital Signature

Signed by:

Stepan Rybin

Authority:

Unizeto Technologies S.A.

Valid from:

6/27/2014 1:37:40 AM

Valid to:

6/27/2015 1:37:40 AM

Subject:

E=rybin.step@yandex.ru, CN=Stepan Rybin, O=Stepan Rybin, C=UA

Issuer:

CN=Certum Code Signing CA, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL

Serial number:

47154C2151E9EB8DFA42C2C9E45BFC6C

File PE Metadata

Compilation timestamp:

3/12/2013 1:51:45 AM

OS version:

4.0

OS bitness:

Win32

Subsystem:

Windows GUI

Linker version:

8.0

CTPH (ssdeep):

6144:VrcbUzkuvcBYC47l2x6VhrsvjcGUk6u2EOhB6nzuY5Id:VrhkuveY3bGkz6zuY5y

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... 
[+]

Entropy:

7.9506

Developed / compiled with:

Microsoft Visual C++

Code size:

7.5 KB (7,680 bytes)

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

http://creatorhelpusa.xyz/v2109?installer_file_name=Setup

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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