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installer_utorrent_english.exe

100Blogs SL

This is the Vittalia Filewon Installer which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed with minimal consent. The application installer_utorrent_english.exe by 100Blogs SL has been detected as adware by 8 anti-malware scanners. The program is a setup application that uses the Vittalia DM installer. The setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions. The file has been seen being downloaded from utorrent.begin.pro.
Publisher:
100Blogs SL  (signed and verified)

MD5:
d137cbada2ae7eabd5533b40f4003900

SHA-1:
96bc9664573bfe5757ac139cd45c7e1624f72505

SHA-256:
40304810bb3b06005ab3e3f809d3b08f2902e0e5fada82906f3f58c4ad2c67e9

Scanner detections:
8 / 68

Status:
Adware

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

Description:
This is an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
4/26/2024 2:46:05 AM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
ADWARE/InstallCore.Gen9
7.11.153.214

Dr.Web
infected with Trojan.MulDrop5.10078
9.0.1.05190

ESET NOD32
Win32/InstallCore.OY potentially unwanted application
7.0.302.0

K7 AntiVirus
Unwanted-Program
13.1712333

Reason Heuristics
PUP.100BlogsSL.AA
14.6.7.9

Sophos
Install Core Click run software
4.98

Vba32 AntiVirus
Downware.InstallCore
3.12.26.0

VIPRE Antivirus
Threat.4782551
29800

File size:
788 KB (806,960 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Vittalia DM (using Nullsoft Install System)

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

Digital Signature
Signed by:
100Blogs SL

Authority:
GoDaddy.com, Inc.

Valid from:
10/14/2013 1:18:59 AM

Valid to:
10/14/2016 1:18:59 AM

Subject:
CN=100Blogs SL, O=100Blogs SL, L=CERDANYOLA DEL VALLES, S=BARCELONA, C=ES

Issuer:
CN=Go Daddy Secure Certificate Authority - G2, OU=http://certs.godaddy.com/repository/, O="GoDaddy.com, Inc.", L=Scottsdale, S=Arizona, C=US

Serial number:
2B93142DC69C91

File PE Metadata
Compilation timestamp:
12/5/2009 2:52:12 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
24576:K0sSXlQ3XHUKNJmNv1wvYMeAKC3I1+/WNJTvh:N8GNv1rMFagkVh

Entry address:
0x30FA

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 18, 1C, 45, 00, E8, F1, 2B, 00, 00, A3, 64, 1B, 45, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 37, 43, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, DB, 44, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, A0, 47, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9875

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://utorrent.begin.pro/.../download?p=EXOCLICKworldwide&trckid=NTQ2OTk5fGtpY2thc3MudG98UEFLfHw4NDc5MjI0fGtpY2thc3NfZmxhdGZlZXwyNDQ5NjN8NzIwNDQ1fDE4Mi4xODMuMjM5LjU0fDQ3Mnw0fHw0MXwyfDN8fDB8Mnw3Mjh4OTB8MQ==

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