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unscope-130970085588522945.exe

QuizScope Uninstaller

QuizScope

The application unscope-130970085588522945.exe by QuizScope has been detected as a potentially unwanted program by 2 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The setup routine uses the RevenYou.Com Pay Per Install platform (OutBrowse) which bundles additional software offers inclduing toolbars, extensions, PC utilities as well as other PUPs. The file has been seen being downloaded from quizscope.com.
Publisher:
QuizScope  (signed and verified)

Product:
QuizScope Uninstaller

Version:
4.0.4504.0

MD5:
7f25fb09fb0922a6ce202cd1d0f3af32

SHA-1:
c7d6b264070efa1cd5290b3ce975f0678281979a

SHA-256:
fcd446a3dbebbe69408603d3153f8847a3bc110ba05aae37ea9074953c9ff04d

Scanner detections:
2 / 68

Status:
Potentially unwanted

Explanation:
Bundles additional adware offers during download and installation using the OutBrowse installer.

Analysis date:
4/30/2024 2:12:22 AM UTC  (today)

Scan engine
Detection
Engine version

Clam AntiVirus
Win.Trojan.Outbrowse-259
0.98/21247

Reason Heuristics
PUP.OutBrowse.QuizScope.Installer (M)
16.1.13.20

File size:
62.8 KB (64,296 bytes)

Product version:
4.0.4504.0

Copyright:
Copyright (C) 2015

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\temp\unscope-130970085588522945.exe

Digital Signature
Signed by:
QuizScope

Authority:
thawte, Inc.

Valid from:
9/8/2015 8:00:00 PM

Valid to:
9/8/2016 7:59:59 PM

Subject:
CN=QuizScope, O=QuizScope, L=Irvine, S=California, C=US

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

Serial number:
6334CF32E921A4E1CD4C0C18E1CEBE72

File PE Metadata
Compilation timestamp:
12/5/2009 5:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
1536:+pgpHzb9dZVX9fHMvG0D3XJn27Kf2rDx0kqIzjbanyGla:EgXdZt9P6D3XJ27KOrDa5KgM

Entry address:
0x30FA

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.1842

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file unscope-130970085588522945.exe has been seen being distributed by the following URL.

http://quizscope.com/.../

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