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CCleaner.exe

dobreprogramy sp. z o.o.

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application CCleaner.exe by dobreprogramy sp. z o.o has been detected as adware by 12 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 installer is marketed through download protals and search ads as the free Piriform CCleaner but will also install additional software offers which include adware, PUPs and browser toolbars.
Publisher:
dobreprogramy sp. z o.o.  (signed and verified)

MD5:
e6800d070284f69f95030716e8a96167

SHA-1:
979f2c246bd8693973149e8fea0caaf94bdf97bc

SHA-256:
0e7d9d4fcb9e485483208162a67e3797aa183b2be79783e1f1e59a58e1e265e6

Scanner detections:
12 / 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:
4/24/2024 10:07:32 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.InstallCore
7.1.1

Avira AntiVirus
ADWARE/InstallCore.Gen7
7.11.142.94

AVG
MalSign.InstallC
2015.0.3505

Dr.Web
Trojan.Packed.24524
9.0.1.0103

ESET NOD32
Win32/InstallCore.MH
8.9659

Fortinet FortiGate
Riskware/InstallCore
4/13/2014

K7 AntiVirus
Unwanted-Program
13.176.11711

McAfee
Artemis!E6800D070284
5600.7161

Reason Heuristics
PUP.dobreprogramyspzoo.P
14.4.13.21

Sophos
Install Core Click run software
4.98

Trend Micro House Call
TROJ_GEN.F47V0409
7.2.103

VIPRE Antivirus
Adware.Win32.InstallCore.ba
28190

File size:
684.4 KB (700,824 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

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

Digital Signature
Signed by:
dobreprogramy sp. z o.o.

Authority:
COMODO CA Limited

Valid from:
6/5/2013 8:00:00 PM

Valid to:
6/6/2014 7:59:59 PM

Subject:
CN=dobreprogramy sp. z o.o., O=dobreprogramy sp. z o.o., STREET=Al. Jana Kasprowicza 94, L=Wrocław, S=dolnośląskie, PostalCode=51-145, C=PL

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

Serial number:
00EFC6EDE5717968B796D7BFF8BE2536E9

File PE Metadata
Compilation timestamp:
6/19/1992 6:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:S4JepWujGjJ2Nieydza84g/2J/VpMvvkgM9GelnVwJz4ZvZpWViltE:S4JebjaJ23Gzbq/PME7zlnVwJz4ZBp6c

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, 53, C9, FF, FF, E8, 9A, 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:
7.8362

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

Code size:
37 KB (37,888 bytes)

The file CCleaner.exe has been seen being distributed by the following 3 URLs.

https://secure.piriform.com/502/cookie?affiliate=32372&redirectto=http://download.dobreprogramy.pl/.../x86&product=70988

http://download4.dobreprogramy.pl/.../x86

http://download.dobreprogramy.pl/.../x86

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