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7Zip.exe

dobreprogramy sp. z o.o.

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application 7Zip.exe by dobreprogramy sp. z o.o has been detected as adware by 12 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 download.dobreprogramy.pl and multiple other hosts.
Publisher:
dobreprogramy sp. z o.o.  (signed and verified)

MD5:
158ac33e495b156f9b112509fe0d0edd

SHA-1:
2215dc44ba62b3a83e9d3db2713fd0e0751cfa68

SHA-256:
fcd4c2b55f6682ab0f135f6c3e9c9f73a04d40e2ea43eb1b7c4cd047632ebfdb

Scanner detections:
12 / 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 2:09:19 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.InstallCore
7.1.1

Avira AntiVirus
ADWARE/InstallCore.Gen7
7.11.143.18

AVG
MalSign.InstallC
2015.0.3505

Dr.Web
Trojan.Packed.24524
9.0.1.0103

ESET NOD32
Win32/InstallCore.MH
8.9671

Fortinet FortiGate
Riskware/InstallCore
4/13/2014

K7 AntiVirus
Unwanted-Program
13.176.11737

McAfee
Artemis!1EBAE858CCF1
5600.7161

Reason Heuristics
PUP.dobreprogramyspzoo.L
14.4.13.22

Sophos
Install Core Click run software
4.98

Trend Micro House Call
TROJ_GEN.F47V0408
7.2.103

VIPRE Antivirus
Adware.Win32.InstallCore.ba
28214

File size:
684.4 KB (700,824 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\7zip.exe

Digital Signature
Signed by:
dobreprogramy sp. z o.o.

Authority:
COMODO CA Limited

Valid from:
6/5/2013 8:00:00 PM

Valid to:
6/6/2014 7:59:59 PM

Subject:
CN=dobreprogramy sp. z o.o., O=dobreprogramy sp. z o.o., STREET=Al. Jana Kasprowicza 94, L=Wrocław, S=dolnośląskie, PostalCode=51-145, C=PL

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00EFC6EDE5717968B796D7BFF8BE2536E9

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:S4JepWujGjJ2Nieydza84g/2J/VpMvvkgM9GelnVwJz4ZvZpWViltE:S4JebjaJ23Gzbq/PME7zlnVwJz4ZBp6c

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, 53, C9, FF, FF, E8, 9A, 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...
 
[+]

Entropy:
7.8366

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

Code size:
37 KB (37,888 bytes)

The file 7Zip.exe has been seen being distributed by the following 3 URLs.

http://download.dobreprogramy.pl/.../x64

http://download5.dobreprogramy.pl/.../x64

http://download4.dobreprogramy.pl/.../x64

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