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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 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the WebPick InstalleRex (Tarma) installer. The file has been seen being downloaded from premiumsoft.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:
2012.1.23.2107

MD5:
8bf7ec0311ddb62c9ccca53a4978a69e

SHA-1:
d97d315652876c2ce859171e29997b98fd44e3e1

SHA-256:
24e7b2ef85322d14db9a4a0ae2f5010d3d9e6f4db55da51eede02f8d231960e1

Scanner detections:
1 / 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:
5/8/2024 6:07:21 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.WebPick.ArtuaVla.Installer (M)
16.6.26.23

File size:
248.1 KB (254,008 bytes)

Product version:
1.0

Copyright:
Copyright © 2010 Premium

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

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

Digital Signature
Signed by:
Artua Vladislav

Authority:
The USERTRUST Network

Valid from:
3/14/2011 8:00:00 PM

Valid to:
3/14/2012 7:59:59 PM

Subject:
CN=Artua Vladislav, O=Artua Vladislav, STREET=haRav Dangur 22, L=Bnei Braq, S=Israel, PostalCode=51281, C=IL

Issuer:
CN=UTN-USERFirst-Object, OU=http://www.usertrust.com, O=The USERTRUST Network, L=Salt Lake City, S=UT, C=US

Serial number:
302242B18FB354EA399140DBBA22B786

File PE Metadata
Compilation timestamp:
1/6/2012 3:12:06 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:zx89ujCpOkLS2ZEpjzUuTVfuZ2rH34Q7hWLKKKhuk:zx8Npx+BpMKGwrX4+hpjh3

Entry address:
0x149F

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, 22, FF, 15, 5C, 30, 40, 00, 50, 68, A0, 32, 40, 00, E8, 8A, FB, FF, FF, 59, 59, C7, 05, 0C, 44, 40, 00, FF, 00, 00, 00, E9, F7, 01, 00, 00, 56, FF, 15, 58, 30, 40, 00, 8B, 48, 3C, 03, C8, 66, 81, 38, 4D, 5A, 0F, 85, BC, 01, 00, 00, 81...
 
[+]

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://premiumsoft.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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