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7-zip.exe

UpdateStar GmbH

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application 7-zip.exe by UpdateStar GmbH has been detected as a potentially unwanted program by 17 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 www.updatestar.com.
Publisher:
UpdateStar GmbH  (signed and verified)

MD5:
e4ecce20bb0909eac6cd1d07239caab0

SHA-1:
b0aa14b69cbe716e6731b6ab28bb88f80e9d4149

SHA-256:
c8c60bcb4f28a35af8ec50c1c4bc636af1cb2971e4d060b6bc598edd7ce39ce5

Scanner detections:
17 / 68

Status:
Potentially unwanted

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:
11/20/2024 8:23:14 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.InstallCore
7.1.1

Avira AntiVirus
ADWARE/InstallCore.Gen7
7.11.129.216

Baidu Antivirus
Adware.Win32.InstallCore
4.0.3.14310

Comodo Security
ApplicUnwnt
17740

Dr.Web
Trojan.KillProc.30849
9.0.1.069

ESET NOD32
Win32/InstallCore.JE.gen (variant)
8.9389

Fortinet FortiGate
Riskware/InstallCore_JE
3/10/2014

Malwarebytes
PUP.Optional.Installcore
v2014.03.10.07

McAfee
Artemis!E4ECCE20BB09
5600.7195

nProtect
Adware/W32.Agent.685056
14.03.07.02

Qihoo 360 Security
Win32/Virus.Adware.94c
1.0.0.1015

Reason Heuristics
PUP.UpdateStarGmbH.F
14.3.10.19

Rising Antivirus
PE:Malware.XPACK-LNR/Heur!1.5594
23.00.65.14308

Sophos
Install Core
4.97

Trend Micro House Call
TROJ_GEN.F47V0203
7.2.69

Vba32 AntiVirus
Downware.InstallCore
3.12.24.3

VIPRE Antivirus
Adware.Win32.InstallCore.ba
26196

File size:
669 KB (685,056 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\low\content.ie5\{random}\7-zip.exe

Digital Signature
Signed by:
UpdateStar GmbH

Authority:
COMODO CA Limited

Valid from:
1/1/2013 6:00:00 PM

Valid to:
1/2/2016 5:59:59 PM

Subject:
CN=UpdateStar GmbH, O=UpdateStar GmbH, STREET=Hauptstraße 20, L=Berlin, S=Berlin, PostalCode=10827, C=DE

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

Serial number:
009ED227324380B40DDE36C8D31A33831F

File PE Metadata
Compilation timestamp:
6/19/1992 5:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:7vptvVqpPXo+HrdkNuX3MmmJalSXGUhjvmWLVGozhj/OuP/th:7vXvV0ddkz82vJGozhj/3h

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:
7.7954

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

Code size:
37 KB (37,888 bytes)

The file 7-zip.exe has been seen being distributed by the following URL.

http://www.updatestar.com/.../2078253

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