icreinstall_ccleaner.exe

Gome

UpdateStar GmbH

The installer utilizes InstallCore which may bundle about 3-4 offers for various ad-supported toolbars, extensions and utilities. The application icreinstall_ccleaner.exe, “Gome 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:
UpdateStar GmbH  (signed and verified)

Product:
Gome

Description:
Gome Setup

MD5:
dfc428437373fa91fdfa22e01aef966f

SHA-1:
ca6f8dddbbeefebe80430db50d1c574dcaf86327

SHA-256:
cb0d6a6dd74bc5826b0657918ceb59f4252f1811316a3bca1aec7bc9eab54c48

Scanner detections:
1 / 68

Status:
Potentially unwanted

Explanation:
Utilizes the InstallCore download manager that may bundle various adware-type offers.

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:
10/29/2020 8:55:37 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore (M)
17.3.15.5

File size:
1.2 MB (1,300,176 bytes)

Product version:
4.4.0

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Common path:
C:\users\{user}\appdata\local\temp\icreinstall_ccleaner.exe

Digital Signature
Signed by:

Authority:
thawte, Inc.

Valid from:
3/29/2016 2:00:00 AM

Valid to:
3/30/2017 1:59:59 AM

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

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
0B4FA804A949E9A222E54344536E47E3

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

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...
 
[+]

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

Code size:
37 KB (37,888 bytes)

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to os.solvefile.com  (207.189.109.121:80)

TCP (HTTP):
Connects to cdnus.solvefile.com  (207.189.109.121:80)

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