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winzip18-dl_es.exe

WinZip Computing

This is the installation and setup package for WinZip, a file compression/decompression utilitiy that has a GUI to zip interface. The installer might bundle additional software offers during setup including the AVG browser toolbar. The application winzip18-dl_es.exe by WinZip Computing has been detected as a potentially unwanted program by 11 anti-malware scanners. The program is a setup application that uses the installCore installer. The setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions.
Publisher:
WinZip Computing  (signed and verified)

MD5:
4fef4728be73490bd22c8b937d59ba07

SHA-1:
f3b6bcee3cd9cd1817e5de76bffb9cc7e9ef622b

SHA-256:
4439a4365da75e77f483bde41f9f6485d9682908b32240da9197e42023af7bf0

Scanner detections:
11 / 68

Status:
Potentially unwanted

Explanation:
The setup program might include offers for additional software during installation.

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
4/24/2024 4:32:52 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.InstallCore
7.1.1

Avira AntiVirus
PUA/InstallCore.Gen7
8.3.1.6

Bkav FE
W32.HfsAdware
1.3.0.6379

Dr.Web
Trojan.Packed.28622
9.0.1.07

ESET NOD32
Win32/InstallCore.PO potentially unwanted (variant)
10.11777

Fortinet FortiGate
Riskware/InstallCore
1/7/2016

G Data
Win32.Application.InstallCore.CO
16.1.25

K7 AntiVirus
Unwanted-Program
13.205.16229

Reason Heuristics
PUP.InstallCore.Bundler (M)
16.1.7.3

Sophos
Install Core Click run software
4.98

Vba32 AntiVirus
Malware-Cryptor.InstallCore.gen
3.12.26.4

File size:
838.7 KB (858,832 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Common path:
C:\users\{user}\downloads\winzip18-dl_es.exe

Digital Signature
Signed by:
WinZip Computing

Authority:
VeriSign, Inc.

Valid from:
2/15/2014 1:00:00 AM

Valid to:
5/17/2016 1:59:59 AM

Subject:
CN=WinZip Computing, OU=IT, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=WinZip Computing, L=Mansfield, S=Connecticut, 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:
4A0099B9A58D592947DF50CC37517426

File PE Metadata
Compilation timestamp:
6/20/1992 12:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:2SFUV3gLrvPYmJ4YZuQede9GGCadXfEI+XR6OSvp:2QI4rHYWA4oxadvT+BCp

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, BF, A9, FF, FF, E8, 5E, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
37 KB (37,888 bytes)

The file winzip18-dl_es.exe has been seen being distributed by the following URL.

http://download.winzip.com/.../winzip18-dl_es.exe

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to st.openinstall.com  (184.168.221.46:80)

TCP (HTTP):
Connects to oi.cloud.avg.com  (204.193.144.33:80)

TCP (HTTP):
Connects to inst.avg.com  (204.193.144.89:80)

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