updatestardrivers_en.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 updatestardrivers_en.exe by UpdateStar GmbH has been detected as a potentially unwanted program by 24 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 client.updatestar.com.
Publisher:
UpdateStar GmbH  (signed and verified)

MD5:
c34707c727cab20196b550c5c8c59742

SHA-1:
ffe471d976e0cd80c42b7c9cbd5ff79aa1b6a353

SHA-256:
b02d0bffcc18903ef99a5457df0bf745dac5a4a296fdb4e91c03cd9fafb2f724

Scanner detections:
24 / 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:
4/26/2024 2:10:55 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.InstallCore
7.1.1

Avira AntiVirus
7.11.134.218

avast!
Win32:Adware-gen [Adw]
2014.9-140510

AVG
MalSign.InstallC
2015.0.3504

Baidu Antivirus
Adware.Win32.InstallCore
4.0.3.14318

Comodo Security
ApplicUnwnt
17888

Dr.Web
Trojan.MulDrop5.10078
9.0.1.077

Emsisoft Anti-Malware
Adware.Generic.552604
8.14.03.18.08

ESET NOD32
Win32/InstallCore.JE.gen (variant)
8.9502

Fortinet FortiGate
Riskware/AirAdInstaller
3/18/2014

IKARUS anti.virus
Win32.AdWare
t3scan.2.2.29

K7 AntiVirus
Unwanted-Program
13.176.11711

Malwarebytes
v2014.03.18.08

McAfee
Artemis!43730FB2175B
5600.7187

nProtect
Adware/W32.Agent.685056
14.03.05.01

Panda Antivirus
Trj/dtcontx.L
14.04.14.05

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

Reason Heuristics
PUP.UpdateStarGmbH.U
14.3.18.20

Rising Antivirus
PE:Malware.XPACK-LNR/Heur!1.5594
23.00.65.14316

Sophos
Install Core
4.97

Trend Micro House Call
TROJ_GEN.F47V0221
7.2.77

Vba32 AntiVirus
3.12.24.3

VIPRE Antivirus
Adware.Win32.InstallCore.ba
27094

File size:
669 KB (685,056 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

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

Digital Signature
Signed by:

Authority:
COMODO CA Limited

Valid from:
1/2/2013 8:00:00 AM

Valid to:
1/3/2016 7:59:59 AM

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:
6/20/1992 6:22:17 AM

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:
7.7968

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

Code size:
37 KB (37,888 bytes)

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

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