home

fastdownload.exe

Setup

Natan Risman

This program bundles adware during the download and install process using the InstaleRex pay-per-install app monetizer. The application fastdownload.exe by Natan Risman has been detected as adware by 26 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:
Premium  (signed by Natan Risman)

Product:
Setup

Description:
Installer

Version:
2012.11.8.1120

MD5:
3467f004e63afa3766af030fee656945

SHA-1:
3651cac094c453ec5827eab27b7e9be2822c2b95

SHA-256:
183aa32ba9f73542034f880e167afda22f0060294351fad62f35053456f2ddf6

Scanner detections:
26 / 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:
4/27/2024 2:59:16 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.InstalleRex
7.1.1

AhnLab V3 Security
PUP/Win32.TSULoader
2014.07.08

Avira AntiVirus
ADWARE/InstallRex.Gen
7.11.141.56

avast!
Win32:InstalleRex-AW [PUP]
2014.9-140419

AVG
MalSign.Skodna
2015.0.3500

Bkav FE
HW32.CDB
1.3.0.4959

Clam AntiVirus
Win.Trojan.742388
0.98/19047

Comodo Security
Application.Win32.Bundledz.C
18046

Dr.Web
Adware.Downware.448
9.0.1.0109

ESET NOD32
Win32/InstalleRex
8.9636

F-Prot
W32/Backdoor2.HMXY
v6.4.7.1.166

herdProtect (fuzzy)
variant of saveas.exe (Adware)
2014.7.7.23

IKARUS anti.virus
PUP.InstallRex
t3scan.1.6.1.0

Kaspersky
not-a-virus:Downloader.Win32.AdLoad
14.0.0.3440

NANO AntiVirus
Riskware.Win32.Downware.ctkpjt
0.28.0.58873

nProtect
Backdoor/W32.Clack.301504
14.06.24.01

Panda Antivirus
PUP/TSUploader
14.04.19.04

Qihoo 360 Security
Malware.QVM20.Gen
1.0.0.1015

Reason Heuristics
PUP.Installer.NatanRisman.M
14.8.8.0

Rising Antivirus
PE:PUF.InstallRex!1.9E4C
23.00.65.14417

Sophos
InstallRex
4.98

SUPERAntiSpyware
Trojan.Agent/Gen-InstallMate
10657

Total Defense
Win32/Tnega.aDQSBaD
37.0.10856

Trend Micro House Call
HV_INSTALLEREX_CG0942F6.RDXN
7.2.109

VIPRE Antivirus
Trojan.Win32.Generic
28012

Zillya! Antivirus
Downloader.Adload.Win32.16891
2.0.0.1805

File size:
294.4 KB (301,496 bytes)

Product version:
1.0

Copyright:
Copyright © 2010 Premium

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

Language:
Language Neutral

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

Digital Signature
Signed by:
Natan Risman

Authority:
COMODO CA Limited

Valid from:
6/6/2012 10:00:00 AM

Valid to:
6/7/2013 9:59:59 AM

Subject:
CN=Natan Risman, O=Natan Risman, STREET=Gordon 6, L=Tel Aviv, S=Israel, PostalCode=63407, C=IL

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

Serial number:
34640F50A673F31E25EF247830CCA289

File PE Metadata
Compilation timestamp:
11/2/2012 8:51:06 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:PQEn9aA+NXagZei5DtsUAIkhZIK5jEgVtdwFBnzsQP6A1J1EqGZ:PQW9alagZp9ieNjnIgOp

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:
7.9592

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=4110272&publisher_id=110&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=12330816&external_id=0&session_id=24661632&hardware_id=28771904&installer_file_name=fastdownload

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