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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 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the installCore installer.
Publisher:
Puzzle Zone Games LLC  (signed and verified)

MD5:
f1635035019583866443dd715cf6db01

SHA-1:
1c283bbaee1c260ff81bff4113131eab707c69b4

SHA-256:
e6e43910f3f760394b4b9cffcc02e573f1e58d66ac52118f8a864a2206a6463d

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Description:
This is an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
12/26/2024 2:41:44 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore (M)
16.11.17.14

File size:
746.4 KB (764,296 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 8:00:00 PM

Valid to:
5/1/2015 7:59:59 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 6:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:KPyMJfsGrup0/8UJhZdk4tnvj3s1us37Q/cOe1VvQJq3diIenIS2YKBTFK2tC2tv:oyMJfs0J7bzsA8niq3QIKIS2bG2tCu6c

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:
7.8609

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

Code size:
36 KB (36,864 bytes)

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