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download.exe

Ruslan Murobec

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 TopApp software” by Ruslan Murobec has been detected as adware by 12 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:
TopApp software  (signed by Ruslan Murobec)

Product:
TopApp software

Description:
Installer for TopApp software

Version:
2014.5.23.1127

MD5:
f2f6e2a1c82f30582e193342d7baaf1f

SHA-1:
bba0a2cfc68b8386f5e93468eec08a4fdf9a5ac2

SHA-256:
297ce8c35f8a34c6bff3f596048550eb2a5ed63d37ae88d8fe5af9cdd4ac5f0e

Scanner detections:
12 / 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:
4/25/2024 4:17:05 AM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
TR/AntiFW.b.109
7.11.151.104

Comodo Security
Application.Win32.InstalleRex.KG
18321

Dr.Web
Adware.Downware.2108
9.0.1.0145

ESET NOD32
Win32/InstalleRex.M potentially unwanted application
7.0.302.0

Kaspersky
Trojan.Win32.AntiFW
14.0.0.3812

Malwarebytes
PUP.Optional.InstalleRex
v2014.05.25.04

NANO AntiVirus
Riskware.Win32.InfoLeak.cvgqot
0.28.0.59921

Qihoo 360 Security
Malware.QVM20.Gen
1.0.0.1015

Reason Heuristics
Adware.WebPick.Installer.I
14.6.12.9

Sophos
InstallRex
4.98

Vba32 AntiVirus
Downloader.AdLoad
3.12.26.0

VIPRE Antivirus
Threat.4150696
29560

File size:
315 KB (322,592 bytes)

Product version:
1.0.0.3

Copyright:
Copyright © 2014 TopApp software

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

Language:
Language Neutral

Common path:
C:\Program Files\malware\malc0de\download.exe

Digital Signature
Signed by:
Ruslan Murobec

Authority:
COMODO CA Limited

Valid from:
9/9/2013 7:00:00 PM

Valid to:
9/10/2014 6:59:59 PM

Subject:
CN=Ruslan Murobec, O=Ruslan Murobec, STREET=Chistyakovska 1, L=Kiev, S=Kiev, PostalCode=02593, C=UA

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

Serial number:
00A607FE6C9BAF18511288BD2284B7669A

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:ErYbUzkuvcBYC47l2xLnvhueEZdkKQ3+7Oj7hTOVA1HWZ+:ErdkuveY3CvI5Zdkj6OEu1HS+

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:
7.9537

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=5777286&publisher_id=777&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=17331858&external_id=0&session_id=34663716&hardware_id=40441002&installer_file_name=download

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