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installer_opera_english.exe

Free Software LLC

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application installer_opera_english.exe by Free Software has been detected as adware by 5 anti-malware scanners. The program is a setup application that uses the installCore installer. During install, it bundles potentially unwanted software on a user's computer at the same time without adequate consent. The file has been seen being downloaded from id.filewon.com.
Publisher:
Free Software LLC  (signed and verified)

MD5:
ac8576388757ecf537b13e8237e4356b

SHA-1:
600e001484cbbd8aba8505b16accb27cbe5a4f5a

SHA-256:
73267af549059502fc826d44976b6f10c35bc62190db8b4f6889e342a8a49325

Scanner detections:
5 / 68

Status:
Adware

Explanation:
May bundle additional potentially unwanted software such as adware during setup.

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:
5/5/2024 7:03:02 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
Generic
2015.0.3257

ESET NOD32
Win32/InstallCore.SC potentially unwanted application
7.0.302.0

Malwarebytes
PUP.Optional.BundleInstaller
v2014.12.17.10

Reason Heuristics
PUP.FreeSoftware.X
14.12.17.22

VIPRE Antivirus
Threat.4782551
35418

File size:
793.5 KB (812,592 bytes)

Product version:
1.5

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Digital Signature
Signed by:
Free Software LLC

Authority:
Starfield Technologies, Inc.

Valid from:
8/1/2014 5:08:01 PM

Valid to:
7/22/2015 6:23:49 PM

Subject:
CN=Free Software LLC, O=Free Software LLC, L=Wilmington, S=Delaware, C=US

Issuer:
SERIALNUMBER=10688435, CN=Starfield Secure Certification Authority, OU=http://certificates.starfieldtech.com/repository, O="Starfield Technologies, Inc.", L=Scottsdale, S=Arizona, C=US

Serial number:
27DD6AADCC34E6

File PE Metadata
Compilation timestamp:
6/20/1992 5:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:DKFTIENy3+ZSijrkfj0NF3I1zG8gnqZuDUYp799Sp:DYUrijrkfjOF41hgq4UYD8

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, BF, A9, FF, FF, E8, 5E, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

Entropy:
7.8869

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
37 KB (37,888 bytes)

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

http://id.filewon.com/.../download?p=ID-MND&concordancia=b&red=g&plataforma=c&anuncio=55159996624&kw=download opera&ubicacion=&categoria=&random=12867463029523779145&posicion=1t1&tmuid=c77b64f07a2804ec2f09ead81eb58e4c

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