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pcspeedup.exe

PC Speed Up

Optimal Software s.r.o.

The application pcspeedup.exe by Optimal Software s.r.o 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 Inno Setup installer. The file has been seen being downloaded from cdn.download4desktop.com and multiple other hosts.
Publisher:
Speedchecker Limited   (signed by Optimal Software s.r.o.)

Product:
PC Speed Up

Version:
3.6.2.2

MD5:
a5b1d9f6a779f53f25bd4cbab62e0510

SHA-1:
b797ef195f46438de86724489d47673eb667dc9c

SHA-256:
535051a405ebca0e5fdb9c8ec5771ced9ddc14aac512f1cb8078cc92a0d7f52c

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
4/18/2024 7:20:40 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.SpeedChecker.Optional.Installer.Meta (L)
16.6.10.12

File size:
5.4 MB (5,619,144 bytes)

Product version:
3.6.2.2

Copyright:
Copyright © Speedchecker Limited 2009-2014

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\pcspeedup.exe

Digital Signature
Signed by:
Optimal Software s.r.o.

Authority:
DigiCert Inc

Valid from:
10/31/2012 12:00:00 AM

Valid to:
11/5/2014 12:00:00 PM

Subject:
CN=Optimal Software s.r.o., O=Optimal Software s.r.o., L=Český Těšín, C=CZ

Issuer:
CN=DigiCert High Assurance Code Signing CA-1, OU=www.digicert.com, O=DigiCert Inc, C=US

Serial number:
09DA6E35288E3A0431B971129CCF387A

File PE Metadata
Compilation timestamp:
12/20/2011 2:16:50 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
98304:8kqSLXfZsv51y2r2qeJqz/bwFO7Xe4UmXTdNW2Curxwa4lSrUTTOYK88clQG9kCV:83STZsh1XDj8FO7omXTGpDa4lSrU3xeu

Entry address:
0x16478

Entry point:
55, 8B, EC, 83, C4, A4, 53, 56, 57, 33, C0, 89, 45, C4, 89, 45, C0, 89, 45, A4, 89, 45, D0, 89, 45, C8, 89, 45, CC, 89, 45, D4, 89, 45, D8, 89, 45, EC, B8, B0, 52, 41, 00, E8, AC, 03, FF, FF, 33, C0, 55, 68, 45, 6B, 41, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 01, 6B, 41, 00, 64, FF, 32, 64, 89, 22, A1, 48, AB, 41, 00, E8, 4E, EC, FF, FF, E8, F5, E7, FF, FF, 8D, 55, EC, 33, C0, E8, 7F, 84, FF, FF, 8B, 55, EC, B8, AC, D6, 41, 00, E8, E2, E9, FE, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, AC, D6, 41, 00, B2, 01...
 
[+]

Developed / compiled with:
Microsoft Visual C++

Code size:
84 KB (86,016 bytes)

The file pcspeedup.exe has been seen being distributed by the following 12 URLs.

http://cdn.download4desktop.com/Installer/.../pcspeedup20140716.exe

https://www.wifiprotector.com/.../response.aspx?&requestId=99b436a0d88044f0b1abdfb36045f145&encodedInstallerPath=QzpcaW5ldHB1Ylx3d3dyb290XHByenlzcGllc3prb21wdXRlclxkb3dubG9hZHMvcGNzcGVlZHVwLmV4ZQ==&edition=

http://www.pcspeedup.com/.../download.aspx?affID=hoffers&k=10299ba041592d3ca0a30dbea33b86

https://www.wifiprotector.com/.../response.aspx?&requestId=ee06cc15a02048578c37799b739d2a73&encodedInstallerPath=QzpcaW5ldHB1Ylx3d3dyb290XHByenlzcGllc3prb21wdXRlclxkb3dubG9hZHMvcGNzcGVlZHVwLmV4ZQ==&edition=

http://www.pcspeedup.com/.../download.aspx?affID=janusz&keyword=unblocker&referencedWebsite=www.pcspeedup.co.uk

http://www.pcspeedup.co.uk/.../download.aspx?affID=janusz&keyword=unblocker

https://www.wifiprotector.com/.../response.aspx?&requestId=ffc78ce738e942628b16bafbe044f765&encodedInstallerPath=QzpcaW5ldHB1Ylx3d3dyb290XHByenlzcGllc3prb21wdXRlclxkb3dubG9hZHMvcGNzcGVlZHVwLmV4ZQ==&edition=

http://www.pcspeedup.me/.../download.aspx?k=Adgroup2&affId=adwords&keyword=Adgroup2&referencedWebsite=hu.pcspeedup.me&language=hu

https://www.wifiprotector.com/.../response.aspx?&requestId=33aa3b00fbfb40e8bfe980931f412f8f&encodedInstallerPath=QzpcaW5ldHB1Ylx3d3dyb290XHByenlzcGllc3prb21wdXRlclxkb3dubG9hZHMvcGNzcGVlZHVwLmV4ZQ==&edition=

http://www.pcspeedup.com/.../download.aspx?affID=hoffers&k=1025a4635d3378373d79dfa9aa4b5a

http://link.pcspeedup.com/aff_c?offer_id=5&aff_id=1524&url_id=45&source=box_resultado

http://www.pcspeedup.com/downloads/.../pcspeedup_3.6.2.exe

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