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 30 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:
2012.8.29.1756

MD5:
17c14d1472d0217c2cf0f8b59f24718c

SHA-1:
ffe45fbce48004b1e6d14a66953489e3c62433b6

Scanner detections:
30 / 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:
4/23/2024 5:48:04 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.InstallMate
7.1.1

AhnLab V3 Security
PUP/Win32.TSULoader
2014.07.08

Avira AntiVirus
Adware/Agent.298536
7.11.138.228

avast!
Win32:InstalleRex-AW [PUP]
2014.9-160214

AVG
MalSign.Skodna
2017.0.2834

Bkav FE
HW32.CDB
1.3.0.4959

Clam AntiVirus
Win.Trojan.742388
0.98/19047

Comodo Security
Application.Win32.Bundledz.C
17993

Dr.Web
Adware.Downware.448
9.0.1.045

ESET NOD32
Win32/InstallMate
10.9594

F-Prot
W32/Backdoor2.HMXY
v6.4.7.1.166

F-Secure
Gen:Variant.Strictor.65095
11.2016-14-02_1

G Data
Win32.Application.InstalleRex
16.2.25

IKARUS anti.virus
PUP.InstallRex
t3scan.1.6.1.0

K7 AntiVirus
Unwanted-Program
13.183.13490

Kaspersky
not-a-virus:Downloader.Win32.AdLoad
14.0.0.664

Malwarebytes
PUP.Optional.InstallRex
v2016.02.14.06

McAfee
Trojan.Artemis!A371ADC8760D
5600.6490

NANO AntiVirus
Riskware.Win32.Downware.cvbqyv
0.28.0.58720

nProtect
Backdoor/W32.Clack.301504
14.06.24.01

Panda Antivirus
PUP/TSUploader
16.02.14.06

Qihoo 360 Security
Malware.QVM20.Gen
1.0.0.1015

Reason Heuristics
PUP.WebPick.NatanRisman.Installer (M)
16.2.14.6

Rising Antivirus
PE:PUF.InstallRex!1.9E4C
23.00.65.16212

Sophos
InstallRex
4.98

SUPERAntiSpyware
Trojan.Agent/Gen-InstallMate
9324

Total Defense
Win32/Tnega.aDQSBaD
37.0.10856

Trend Micro House Call
HV_INSTALLEREX_CG0942F6.RDXN
7.2.45

VIPRE Antivirus
Installerex/WebPick
27744

Zillya! Antivirus
Downloader.Adload.Win32.16891
2.0.0.1805

File size:
295.9 KB (303,016 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:\Documents and Settings\{user}\My documents\downloads\fastdownload.exe

Digital Signature
Signed by:

Authority:
COMODO CA Limited

Valid from:
6/6/2012 5:30:00 AM

Valid to:
6/7/2013 5:29:59 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:
8/22/2012 7:37:13 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:P07FOXvx+6JQjyIgCKPcKiar9IDp/7git57kIfAPAfrxUSUst/:P0pev+mNCKPcKirdgit5HfCAf7F/

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:
7.9578

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

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

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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