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gemlink.exe

Puzzle Zone Games LLC

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application gemlink.exe by Puzzle Zone Games has been detected as adware 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. The file has been seen being downloaded from installerlaunch-pz1.com.
Publisher:
Puzzle Zone Games LLC  (signed and verified)

MD5:
807e5c6927dc6a3b1ea67e5eb1835dfd

SHA-1:
baed85a58dd0559979acdac5d65c07adf7278704

SHA-256:
a75518035a733ef801627e7776c74a0c223f4a6b5352658ce167744c48a419fc

Scanner detections:
11 / 68

Status:
Adware

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

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:
4/25/2024 12:30:49 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
Generic
2015.0.3383

Bkav FE
HW32.Laneul
1.3.0.4959

Dr.Web
Adware.InstallCore.122
9.0.1.0225

ESET NOD32
Win32/InstallCore.BY potentially unwanted application
8.7.0.302.0

F-Prot
W32/InstallCore.R.gen
v6.4.6.5.141

herdProtect (fuzzy)
variant of icreinstall_ultimate-word-search.exe (Adware)
2014.10.27.1

McAfee
Trojan.Artemis!807E5C6927DC
5600.7037

Rising Antivirus
PE:Malware.InstallCore!6.4
23.00.65.14811

Sophos
Install Core Click run software
4.98

Vba32 AntiVirus
Downware.InstallCore
3.12.26.3

VIPRE Antivirus
Threat.4835495
32186

File size:
602.4 KB (616,816 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

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

Digital Signature
Signed by:
Puzzle Zone Games LLC

Authority:
VeriSign, Inc.

Valid from:
3/31/2013 5:00:00 PM

Valid to:
5/1/2015 4:59:59 PM

Subject:
CN=Puzzle Zone Games LLC, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Puzzle Zone Games LLC, L=Jersey City, S=New Jersey, 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:
148574E327EC8ED99B4372B65FF2B06D

File PE Metadata
Compilation timestamp:
6/19/1992 3:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:jJfsTm0GYzxuTnBHWRwZs12kZCEg3/l0FseCRUw6hxg4VXNx:jJfsWYUnB26mU/p3/4w6hT9x

Entry address:
0x98CC

Entry point:
55, 8B, EC, 83, C4, CC, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, FA, 97, FF, FF, E8, 01, AA, FF, FF, E8, 2C, CC, FF, FF, E8, 73, CC, FF, FF, E8, 0A, F3, FF, FF, E8, 71, F4, FF, FF, 33, C0, 55, 68, 76, 9F, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 2C, 9F, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, B0, 40, 00, E8, 9B, FE, FF, FF, E8, 26, FA, FF, FF, 8D, 55, F0, 33, C0, E8, E0, D0, FF, FF, 8B, 55, F0, B8, D8, BD, 40, 00, E8, AB, 98, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, D8, BD, 40, 00, B2, 01, B8...
 
[+]

Entropy:
7.8023

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

Code size:
36 KB (36,864 bytes)

The file gemlink.exe has been seen being distributed by the following URL.

http://installerlaunch-pz1.com/index.php?dl=download.installerlaunch-pz1.com/pz_8254.exe&dn=gemlink.exe&sid=1579-v1&pid=1524&browser={ch&ptrk=gqm55kdj6mlclubc96e71g21d6&DOP=2&typ=http://.../ty.php

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