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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 pc-tune-up.en.softonic.com and multiple other hosts.
Publisher:
NNJ Corporation  (signed and verified)

MD5:
a62d04a794b5d3178b3946612dea7040

SHA-1:
78fd49c6a502b661acbfdba39a2820125b3c342b

SHA-256:
c04dc1fc7b22e3714c4ef3ce833125cfbc06715569edee495b329e8e55ef22cd

Scanner detections:
2 / 68

Status:
Inconclusive  (not enough data for an accurate detection)

Analysis date:
11/27/2024 1:09:57 AM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
riskware program Program.Unwanted.1042
9.0.1.05190

Sophos
PUA 'PC Tune-up'
5.20

File size:
4.3 MB (4,483,000 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\downloads\pctuneupsetup.exe

Digital Signature
Signed by:
NNJ Corporation

Authority:
Symantec Corporation

Valid from:
4/7/2015 8:00:00 PM

Valid to:
5/7/2016 7:59:59 PM

Subject:
CN=NNJ Corporation, O=NNJ Corporation, L=San Diego, S=California, C=US

Issuer:
CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
4A787C9586F4FB290207D54700736610

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):
98304:1Yhq62OzTvt0oP7IYuug491bzN11/br8SxcBEJATxwaLb:1Yhq62+Tvt0oP7ICf3Jv/8JBSa/

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:
7.8861

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 9 URLs.

https://pc-tune-up.en.softonic.com/download-tracker?th=1/.../9A==

https://www.largesoftware.com/downloads/Products/.../PCTuneUpSetup.exe

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

http://pc-tune-up.en.softonic.com/download-tracker?th=1/.../9A==

https://sharewareonsale.com/?download_file=4558008&order=wc_order_56f1e3126fb6a&email=pepevalla@hotmail.com&key=402b10cacc7b023180a723257cec190b

https://sharewareonsale.com/?download_file=4558008&order=wc_order_56f1d06edc2f6&email=warrenscott223@gmail.com&key=402b10cacc7b023180a723257cec190b

http://www.largesoftware.com/downloads/Products/.../PCTuneUpSetup.exe

http://files.downloadnow.com/s/software/14/49/42/.../PCTuneUpSetup.exe

http://gsf-cf.softonic.com/78f/d49/.../PCTuneUpSetup.exe

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