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7z920-x64.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 7z920-x64.exe by UpdateStar GmbH has been detected as a potentially unwanted program 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 cdn.updatestardelivery.com.
Publisher:
UpdateStar GmbH  (signed and verified)

MD5:
111a29ba82042cd65ba78513b4e33528

SHA-1:
e166019a98a6d94e18eb5df2a6a163fb1a759f2a

SHA-256:
c33d5a32ec1bb707046d20776ff108509d7636aaf0886b2ee22c637dfb6c0e3b

Scanner detections:
12 / 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:
4/25/2024 6:18:22 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Trojan.Kryptik
7.1.1

Avira AntiVirus
Adware/InstallCore.A.123
7.11.164.144

AVG
Generic
2015.0.3398

Baidu Antivirus
Trojan.Win32.Kryptik
4.0.3.14730

Dr.Web
Trojan.Packed.24524
9.0.1.0211

ESET NOD32
Win32/InstallCore.OZ potentially unwanted application
8.7.0.302.0

herdProtect (fuzzy)
variant of icreinstall_updatestardrivers.exe (PUP)
2014.9.10.6

K7 AntiVirus
Trojan
13.181.12872

Malwarebytes
PUP.Optional.InstallCore
v2014.07.30.05

Qihoo 360 Security
Win32/Virus.Adware.e57
1.0.0.1015

Reason Heuristics
PUP.UpdateStarGmbH.J
14.7.30.4

VIPRE Antivirus
Threat.4150696
29708

File size:
723.3 KB (740,688 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Common path:
C:\users\{user}\downloads\7z920-x64.exe

Digital Signature
Signed by:
UpdateStar GmbH

Authority:
VeriSign, Inc.

Valid from:
6/10/2014 2:00:00 AM

Valid to:
6/11/2015 1:59:59 AM

Subject:
CN=UpdateStar GmbH, OU=IT, O=UpdateStar GmbH, L=Berlin, S=Berlin, C=DE

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:
71A04D21E9F4BB6E19C3CB7D720E6245

File PE Metadata
Compilation timestamp:
6/20/1992 12:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:w7EvpVehSPZwKt2d8a5mh8EzvCW/MGTYGYWARi+uX3wGpWKFeCrSMl:w7EvTHasmEzvD9YWAvhGpWKFhFl

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...
 
[+]

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

Code size:
37 KB (37,888 bytes)

The file 7z920-x64.exe has been seen being distributed by the following URL.

http://cdn.updatestardelivery.com/?ic_user_id=812

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