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1401198438_pcspeedup.exe

PC Speed Up

Optimal Software s.r.o.

The application 1401198438_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 vzbucket.maxrevinstaller.com and multiple other hosts.
Publisher:
Speedchecker Limited   (signed by Optimal Software s.r.o.)

Product:
PC Speed Up

Version:
3.5.2.0

MD5:
c030295ed6b5d773a6759dcfe48fcd99

SHA-1:
3cc6df16d640e12b9516b29c4fb861393e5f5702

SHA-256:
1837b66d9b82688abde08600a94d70dd77242501dfbab1ec8371440c72ce5bdf

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
11/23/2024 7:35:05 AM UTC  (today)

Scan engine
Detection
Engine version

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

File size:
5.3 MB (5,578,080 bytes)

Product version:
3.5.2.0

Copyright:
Copyright © Speedchecker Limited 2009-2014

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

Common path:
C:\users\{user}\appdata\local\temp\1401198438_pcspeedup.exe

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

Authority:
DigiCert Inc

Valid from:
10/31/2012 1:00:00 AM

Valid to:
11/5/2014 1:00:00 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 3:16:50 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
98304:lkqSL8+5AY8l/e4U1XTdNW2CurxiMFFezcA7TZ8CLPt9R3Lkp4U5kh7ZpoU:l3SFiY8u1XTGpujt6N5h3O4uATF

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 1401198438_pcspeedup.exe has been seen being distributed by the following 3 URLs.

http://vzbucket.maxrevinstaller.com/Pcspeedup/.../pcspeedup.exe

http://i.nextupsw.com/inst/software/B3111F0C-6578-4C1D-AAF8-A0E80FF66418/.../pcspeedup.exe

http://cdn.download4desktop.com/Installer/.../pcspeedup1-6.exe

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