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download.exe

Sergey Petrov

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 Rightapp software” by Sergey Petrov has been detected as adware by 21 anti-malware scanners. The program is a setup application that uses the WebPick InstalleRex (Tarma) installer. The setup program uses Web-Pick's InstalleRex download manager and installer to bundle potentially unwanted ad-supported software which includes toolbars and browser extensions through a pay-per-install monetization scheme.
Publisher:
Rightapp software  (signed by Sergey Petrov)

Product:
Rightapp software

Description:
Installer for Rightapp software

Version:
2014.4.17.2053

MD5:
d6cab36ad91943e8b22c41d6a10aac03

SHA-1:
c8d1b7f49074a3a0d8ba31857ef5259102d3357d

SHA-256:
14df598f23fcfa8b9da327aaa41e4f506a39cf7cd2ed0d50efd48c80f9aada83

Scanner detections:
21 / 68

Status:
Adware

Explanation:
Uses the InstalleRex from WebPick Internet Holdings to install bundled add-ons including toolbars and other web browser extensions.

Analysis date:
4/26/2024 9:19:02 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Trojan.AntiFW
7.1.1

AhnLab V3 Security
PUP/Win32.TSULoader
14.04.24

Avira AntiVirus
TR/AntiFW.b.89
7.11.145.18

avast!
Win32:Installer-AP [PUP]
2014.9-140424

AVG
MalSign.Generic
2015.0.3495

Comodo Security
Application.Win32.InstalleRex.KG
18158

Dr.Web
Trojan.WebPick.29
9.0.1.0114

ESET NOD32
Win32/InstalleRex (variant)
8.9715

G Data
Win32.Application.EZDownloader
14.4.24

K7 AntiVirus
Unwanted-Program
13.176.11861

Kaspersky
Trojan.Win32.AntiFW
14.0.0.3969

Malwarebytes
PUP.Optional.Installrex
v2014.04.24.07

McAfee
PUP-FHQ!D6CAB36AD919
5600.7151

NANO AntiVirus
Riskware.Win32.InfoLeak.cvgqot
0.28.0.59492

nProtect
Trojan/W32.AntiFW.323712
14.04.24.02

Qihoo 360 Security
Malware.QVM20.Gen
1.0.0.1015

Reason Heuristics
Adware.WebPick.Installer.I
14.4.24.6

Rising Antivirus
PE:PUF.InstallRex!1.9E4C
23.00.65.14422

Sophos
InstallRex
4.98

Vba32 AntiVirus
Downloader.AdLoad
3.12.26.0

VIPRE Antivirus
Installerex/WebPick
28562

File size:
316.1 KB (323,712 bytes)

Product version:
1.0.0.3

Copyright:
Copyright © 2014 Rightapp software

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

Language:
Language Neutral

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

Digital Signature
Signed by:
Sergey Petrov

Authority:
COMODO CA Limited

Valid from:
8/21/2013 2:00:00 AM

Valid to:
8/22/2014 1:59:59 AM

Subject:
CN=Sergey Petrov, O=Sergey Petrov, STREET=Gaydara 13, L=Kyev, S=Kyev, PostalCode=01033, C=UA

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

Serial number:
0AD084E865D27CD546D21DB6EDF89D48

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:trybUzkuvcBYC47l2xphuK2+Otbaysqo+/VKitoTxwbs5iD3B2phoR:trLkuveY3EMK9ObxD/06s5w3BLR

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 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=4296256&publisher_id=296&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=12888768&external_id=0&session_id=25777536&hardware_id=30073792&installer_file_name=download

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