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ccleaner.exe

Internet application

UpdateStar GmbH

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application ccleaner.exe, “Internet application Setup ” by UpdateStar GmbH has been detected as a potentially unwanted program 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 installCore installer. 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:
Software   (signed by UpdateStar GmbH)

Product:
Internet application

Description:
Internet application Setup

Version:
1.7.1.7

MD5:
95a072e2a8c95b09b6c0346c668676c2

SHA-1:
6732e1053254ce41d7fbd9e61509232f79fa0e4f

Scanner detections:
1 / 68

Status:
Potentially unwanted

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

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:
12/25/2024 4:31:46 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore.UpdateStar.Installer (M)
16.2.23.0

File size:
741.1 KB (758,904 bytes)

Product version:
3.3.7

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\Documents and Settings\{user}\My documents\downloads\ccleaner.exe

Digital Signature
Signed by:
UpdateStar GmbH

Authority:
GlobalSign nv-sa

Valid from:
2/3/2015 8:10:42 PM

Valid to:
2/4/2016 8:10:42 PM

Subject:
CN=UpdateStar GmbH, O=UpdateStar GmbH, L=Berlin, S=Berlin, C=DE

Issuer:
CN=GlobalSign CodeSigning CA - G2, O=GlobalSign nv-sa, C=BE

Serial number:
112124922D3C2654755777EEC500C21F7151

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

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:wvkaaES3Ir8Su8oFkkZn1PeQk4Y0884Cazn1VdRc1YAI3tPLOVk0COs6Vuf0Y:wvkPzp1Pk4YZJTbfda1YVtDOyTOs6cP

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:
7.8852

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 URL.

http://cdn.straightfolderscounter.com/c?x=1MvT2kdyFRot7OpPKCtwfE6luK7KSqV46eOIXmeVKe0=&c=JVpYDt5YAVj9HaH01p3z15i2wDg3WK/7xoWI6H6F/q4aiKaZ3KqvgNgnNy8owE7 uytJS2lGY4JI8yOas3i35eOWhYR3VuMmKNNgi8kKnMAJUtrNI5e9z3YmhKtebvrc&fallback_url=http://static.updatestar.net/dl/.../ccsetup500_slim.exe&downloadAs=ccleaner.exe

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