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fastdownload.exe

Setup

Artua Vladislav

This is a WebPick installer that bundles (with very minimal user consent) a number of adware browser extensions which inject ads in the browser. The application fastdownload.exe by Artua Vladislav has been detected as adware by 28 anti-malware scanners. The program is a setup application that uses the WebPick InstalleRex (Tarma) installer. The file has been seen being downloaded from premiumsafe.info. While running, it connects to the Internet address r1.stylezip.info on port 80 using the HTTP protocol.
Publisher:
Premium  (signed by Artua Vladislav)

Product:
Setup

Description:
Installer

Version:
2012.3.29.1900

MD5:
ec918d6a39265de6fb7ecfd6e8f5253d

SHA-1:
3de7d1ce3679991735e90c1683f6b3eda6b0394f

SHA-256:
4b2b5e8928951fb1bbcdde5492498dcb345adde8b5c6bd38bfac29601a5880f5

Scanner detections:
28 / 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:
4/20/2024 2:34:20 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.Generic.376680
965

Agnitum Outpost
Riskware.InstallMate
7.1.1

AhnLab V3 Security
PUP/Win32.TSULoader
14.06.15

Avira AntiVirus
Adware/Bundledz.C
7.11.137.190

avast!
Win32:InstallMate-CJ [PUP]
140611-0

AVG
Adware AdInstaller.PremiumInstaller
2014.0.3955

Bitdefender
Adware.Generic.376680
1.0.20.830

Bkav FE
HW32.CDB
1.3.0.4959

Clam AntiVirus
Win.Trojan.8827969
0.98/19073

Comodo Security
Application.Win32.Bundledz.C
17951

Dr.Web
Adware.Downware.97
9.0.1.05190

Emsisoft Anti-Malware
Adware.Generic.376680
8.14.06.15.09

ESET NOD32
Win32/InstallMate potentially unwanted application
7.0.302.0

F-Secure
Adware.Generic.376680
11.2014-15-06_1

G Data
Adware.Generic.376680
14.6.24

IKARUS anti.virus
AdWare.Allpremiumsoft
t3scan.1.6.1.0

MicroWorld eScan
Adware.Generic.376680
15.0.0.498

NANO AntiVirus
Riskware.Win32.Downware.ctkpkm
0.28.0.58491

nProtect
Trojan.Generic.8750467
14.05.16.01

Panda Antivirus
PUP/TSUploader
14.06.15.09

Qihoo 360 Security
Malware.QVM20.Gen
1.0.0.1015

Reason Heuristics
PUP.Installer.ArtuaVladislav.M
14.8.8.0

Rising Antivirus
PE:Malware.Bundledz!6.11CB
23.00.65.14613

Sophos
InstallRex
4.98

SUPERAntiSpyware
PUP.InstallMate
10542

Trend Micro House Call
HV_INSTALLEREX_CI1954E8.RDXN
7.2.166

Vba32 AntiVirus
Downloader.AdLoad
3.12.24.3

VIPRE Antivirus
Installerex/WebPick
27510

File size:
258 KB (264,176 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:
Artua Vladislav

Authority:
COMODO CA Limited

Valid from:
2/22/2012 3:30:00 AM

Valid to:
2/22/2013 3:29:59 AM

Subject:
CN=Artua Vladislav, O=Artua Vladislav, STREET=HaRav Dangur 22, L=Bnei Braq, S=Israel, PostalCode=51282, C=IL

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

Serial number:
2E891F383001DD159332A0D089F55CE3

File PE Metadata
Compilation timestamp:
3/20/2012 3:04:42 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:xupehZashU5nflui6Ghu+9cxE3Sk1yf4osYJYmut+C:xup6ZawOluintcxE3XEf4t8YmucC

Entry address:
0x14A3

Entry point:
55, 8B, EC, 81, EC, 24, 06, 00, 00, 53, 56, 33, F6, 57, 66, 89, B5, E4, FB, FF, FF, 89, 75, F4, 89, 75, FC, FF, 15, 68, 30, 40, 00, A3, 08, 44, 40, 00, FF, 15, 64, 30, 40, 00, 89, 45, F8, 68, 04, 01, 00, 00, 8D, 85, DC, F9, FF, FF, 50, 56, FF, 15, 60, 30, 40, 00, 85, C0, 75, 41, FF, 15, 5C, 30, 40, 00, 83, F8, 78, 75, 1A, 68, C4, 32, 40, 00, E8, 82, FB, FF, FF, 59, C7, 05, 0C, 44, 40, 00, FD, 00, 00, 00, E9, 13, 02, 00, 00, 50, 68, A0, 32, 40, 00, E8, 67, FB, FF, FF, 59, 59, C7, 05, 0C, 44, 40, 00, FF, 00...
 
[+]

Entropy:
7.9427

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.

http://premiumsafe.info/.../

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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