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opera.exe

ISfreemium

The file is a bundle distribution and utilizes the installCore download manager to distribute this potentially unwanted software. The application opera.exe by ISfreemium has been detected as adware by 18 anti-malware scanners. The program is a setup application that uses the installCore 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 www.download-pc.com.
Publisher:
ISfreemium  (signed and verified)

MD5:
1023b029e6a855d96d965a3ced441e03

SHA-1:
aab4460772c4733015e52d014fa9fec8ab30df43

SHA-256:
4c0112570821b31213bc7d9e2dba35876229e73adefa36786034a399dd1710f8

Scanner detections:
18 / 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 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
4/19/2024 3:25:23 PM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
ADWARE/InstallCore.Gen7
7.11.141.94

Bkav FE
W32.Clod32d.Trojan
1.3.0.4613

Comodo Security
Application.Win32.Agent.AP
17403

Dr.Web
Trojan.Packed.24524
9.0.1.0142

ESET NOD32
Win32/InstallCore.DK (variant)
8.9145

Fortinet FortiGate
Riskware/InstallCore
8/7/2014

F-Prot
W32/InstallCore.R3.gen
v6.4.7.1.166

K7 AntiVirus
Unwanted-Program
13.174.10446

Malwarebytes
PUP.Optional.Freemium.A
v2014.05.22.01

McAfee
Artemis!1023B029E6A8
5600.7122

Norman
InstallCore.RBUR
11.20140807

Qihoo 360 Security
Win32/Virus.Adware.94c
1.0.0.1015

Reason Heuristics
PUP.ISfreemium.F
14.8.7.18

Rising Antivirus
PE:Malware.XPACK-LNR/Heur!1.5594
23.00.65.14520

Sophos
Install Core Click run software
4.95

Trend Micro House Call
TROJ_GEN.F47V1117
7.2.142

Vba32 AntiVirus
Downware.InstallCore
3.12.26.0

VIPRE Antivirus
InstallCore
24120

File size:
584.4 KB (598,424 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\low\content.ie5\{random}\opera.exe

Digital Signature
Signed by:
ISfreemium

Authority:
COMODO CA Limited

Valid from:
7/3/2013 2:00:00 AM

Valid to:
7/4/2014 1:59:59 AM

Subject:
CN=ISfreemium, O=ISfreemium, STREET=63 Rothschild 63 BV, L=Tel-Aviv, S=N/A, PostalCode=65785, C=IL

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

Serial number:
009B517CAF08AA1A85822DB0CE5E9169FE

File PE Metadata
Compilation timestamp:
6/20/1992 12:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:DMJfsGGZ/tEQ1B/l8CRi5ebHPEPJzWU4BfqZrvj3SGZGYzsB8HSm:DMJfsX/6Q14v+HeJyUAqZDLSGQYAQ

Entry address:
0x98CC

Entry point:
55, 8B, EC, 83, C4, CC, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, FA, 97, FF, FF, E8, 01, AA, FF, FF, E8, 2C, CC, FF, FF, E8, 73, CC, FF, FF, E8, 0A, F3, FF, FF, E8, 71, F4, FF, FF, 33, C0, 55, 68, 76, 9F, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 2C, 9F, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, B0, 40, 00, E8, 9B, FE, FF, FF, E8, 26, FA, FF, FF, 8D, 55, F0, 33, C0, E8, E0, D0, FF, FF, 8B, 55, F0, B8, D8, BD, 40, 00, E8, AB, 98, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, D8, BD, 40, 00, B2, 01, B8...
 
[+]

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

Code size:
36 KB (36,864 bytes)

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

http://www.download-pc.com/de/downloads/.../Opera.exe

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