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pdfviewer_install.exe

United Starex Limited

The application pdfviewer_install.exe by United Starex Limited has been detected as a potentially unwanted program by 3 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. This version of the installer will bundle the Ask.com Toolbar, a potentially unwanted web browser extension.
Publisher:
United Starex Limited  (signed and verified)

MD5:
b54360bd17138dafab142a78c67f4822

SHA-1:
db5b62f18186c0c999fd58b6f5f6c00890e25b7c

SHA-256:
5f87249647461caebc5d1bb16d2b93648a5ef4e01775a74081be0b5f2c7a6185

Scanner detections:
3 / 68

Status:
Potentially unwanted

Explanation:
Bundles that Ask.com toolbar as a third-party offer, a web browser extension that may modify a user's search and home pages.

Analysis date:
11/15/2024 7:40:50 AM UTC  (today)

Scan engine
Detection
Engine version

ESET NOD32
Win32/Bundled.Toolbar.Ask (variant)
9.8152

Reason Heuristics
PUP.UnitedStarex.Installer.Meta (M)
16.2.27.17

Vba32 AntiVirus
suspected of Trojan.Downloader.gen.h
3.12.20.2

File size:
2 MB (2,094,768 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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

Digital Signature
Signed by:
United Starex Limited

Authority:
VeriSign, Inc.

Valid from:
9/26/2010 7:00:00 PM

Valid to:
9/27/2011 6:59:59 PM

Subject:
CN=United Starex Limited, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=United Starex Limited, L=Hong Kong, S=Hong Kong, C=HK

Issuer:
CN=VeriSign Class 3 Code Signing 2009-2 CA, OU=Terms of use at https://www.verisign.com/rpa (c)09, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
6A89ECC09433127281B9C060C25A41E0

File PE Metadata
Compilation timestamp:
12/5/2009 4:50:46 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
49152:SYIhJpVX7aS16XuGH6wVrNBXMe5SLIOf/coGf:SHhBXj6Xf6grfXMYafW

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:
7.9583

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

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