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coolcalendarsetup.exe

ADLSoft

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application coolcalendarsetup.exe by ADLSoft 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. The file has been seen being downloaded from www.coolcalendarapp.com.
Publisher:
ADLSoft  (signed and verified)

MD5:
2547a7e77f3bbf6ef15626471578ae05

SHA-1:
d258d3b8844b4f1cdac2a8be04d2a2bc026286a9

SHA-256:
f728268e300c74ab6cb65d715105c0faf199aa4b0b72fa5eb8c999fb8971cd26

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Uses the InstallCore download and install manager which may bundle various potentially unwanted software offers during setup.

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:
4/16/2024 10:22:10 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore.ADLSoft.Installer (M)
15.12.9.14

File size:
1.1 MB (1,133,096 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

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

Digital Signature
Signed by:
ADLSoft

Authority:
Thawte, Inc.

Valid from:
6/20/2012 8:00:00 PM

Valid to:
7/25/2014 7:59:59 PM

Subject:
CN=ADLSoft, O=ADLSoft, L=Tel Aviv, S=Israel, C=IL

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
1C7950C7BFF384C5ABB93DD694E588E8

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):
24576:cMJfsVxB0hdBGicpwRgm+zve+RCOIxPTC4q52EVXG4AVjhje08Y:TJfsesNjxPQhxPO42nVlIg08

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:
7.8607

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

Code size:
36 KB (36,864 bytes)

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

http://www.coolcalendarapp.com/cool-calendar/gb/.../?dl=1

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