download.exe

Lior Sela

This is a WebPick installer that bundles (with very minimal user consent) a number of adware browser extensions using the JustPlug.it browser framework. The application download.exe, “Installer for StarApp” by Lior Sela 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. The file has been seen being downloaded from filesaredirecty.asia. While running, it connects to the Internet address r1.stylezip.info on port 80 using the HTTP protocol.
Publisher:
StarApp  (signed by Lior Sela)

Product:
StarApp

Description:
Installer for StarApp

Version:
2013.6.13.1400

MD5:
9e593ac5d1664830b8716ff82ba62631

SHA-1:
e393d2fd70cc46867a8f67853444d138e56f9de5

SHA-256:
09e7c8423a2482b714ce36572c44ea988736218addb1db809caf58e544635da3

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 11:59:03 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.WebPick.Installer (M)
16.5.14.15

File size:
285.3 KB (292,128 bytes)

Product version:
1.0.0.1

Copyright:
Copyright © 2012 StarApp

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

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

Digital Signature
Signed by:

Authority:
COMODO CA Limited

Valid from:
1/21/2013 7:00:00 PM

Valid to:
1/22/2014 6:59:59 PM

Subject:
CN=Lior Sela, O=Lior Sela, STREET=Moshe Sharet 46, L=Beer Sheva, S=Beer Sheva, PostalCode=84786, C=IL

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

Serial number:
00D39C56B89258E40E737B2AEDA8D3D3E5

File PE Metadata
Compilation timestamp:
3/12/2013 3:51:45 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:MrkG6Y0JQBkQRl7174NpNUM+UHs+l96AzqrbuMEdFx7507KAFG9StKWp+:MrkG63yRl1uqM+gs+i6ubuhdL2pGiKF

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:
7.9551

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

The file download.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 r1.stylezip.info  (54.186.255.26:80)

TCP (HTTP):
Connects to c1.stylezip.info  (54.186.255.26:80)

 
http://c1.stylezip.info/?step_id=1&installer_id=162948688&publisher_id=629&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=488846064&external_id=0&session_id=977692128&hardware_id=1140640816&installer_file_name=download

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