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pctuneupsetup.exe

NNJ Corporation

The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from www.megapcbundle.com and multiple other hosts.
Publisher:
NNJ Corporation  (signed and verified)

MD5:
0790b88adaddd0b345d4fd64a67e4919

SHA-1:
5f85b7eca80c14e2baf4dd1c4ebe263a0441a3e8

SHA-256:
f087a0c09171efa9069f58d98d753f5ea16eec9f9fc1e28ffffc20f75f26f591

Scanner detections:
1 / 68

Status:
Clean  (1 probable false positive detection)

Explanation:
This is mosty likely a false positive detection, the file is probably clean.

Analysis date:
11/5/2024 7:00:32 AM UTC  (today)

Scan engine
Detection
Engine version

Sophos
PC Tune-up
4.98

File size:
4.3 MB (4,489,648 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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

Digital Signature
Signed by:
NNJ Corporation

Authority:
VeriSign, Inc.

Valid from:
2/5/2012 7:00:00 PM

Valid to:
2/9/2013 6:59:59 PM

Subject:
CN=NNJ Corporation, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=NNJ Corporation, L=San Diego, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
61BC05F5609ECE1988B9B10CA709C57A

File PE Metadata
Compilation timestamp:
12/5/2009 5:50:46 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
98304:rYPSB9T6L55UObvIUD2Mmz6XeIEpHKTa1pnYFv53p7nbKTMv:rYPSBs55UObvIUDLm09EFKOYFB9bK2

Entry address:
0x323C

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 30, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 58, 3F, 42, 00, E8, 09, 2C, 00, 00, A3, A4, 3E, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 58, F4, 41, 00, FF, 15, 58, 71, 40, 00, 68, B8, 91, 40, 00, 68, A0, 36, 42, 00, E8, BC, 28, 00, 00, FF, 15, B0, 70, 40, 00, BF, 00, 90, 42, 00, 50, 57, E8, AA, 28, 00, 00...
 
[+]

Entropy:
7.8864

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file pctuneupsetup.exe has been seen being distributed by the following 2 URLs.

http://www.megapcbundle.com/ESD/.../PCTuneUpSetup.exe

http://usa.novadevelopment.com/.../PCTuneUpSetup.exe

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