avast_free_antivirus_rus_setup.exe

STMSetup

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application avast_free_antivirus_rus_setup.exe by STMSetup has been detected as adware by 9 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. With this installer, users are expecting to download the free AVAST Antivirus but before that occurs they may be presented with additional offers, mostly potentially unwanted software or adware.
Publisher:
STMSetup  (signed and verified)

MD5:
7cb1981a54f1d94b09da1d596ef81ec4

SHA-1:
ae94f5d0f9e654e5749e43b1a842dd85452733dc

SHA-256:
b92b799d21dc76228ef74833d29860c8dee826ef948c526c75a8f1ddde226d98

Scanner detections:
9 / 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 8:38:07 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
Generic
2015.0.3415

Dr.Web
Trojan.MulDrop5.10078
9.0.1.0193

ESET NOD32
Win32/InstallCore.ON (variant)
8.10048

McAfee
CryptInno
5600.7071

Norman
InstallCore.CERT
11.20140712

Reason Heuristics
PUP.Installer.STMSetup.EE
14.7.17.9

Vba32 AntiVirus
3.12.26.3

VIPRE Antivirus
InstallCore
30978

File size:
662.2 KB (678,104 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

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

Digital Signature
Signed by:

Authority:
COMODO CA Limited

Valid from:
4/28/2014 3:00:00 AM

Valid to:
4/29/2015 2:59:59 AM

Subject:
CN=STMSetup, O=STMSetup, STREET=28 Lenelblome St., L=Tel-Aviv, S=Israel, PostalCode=651307, C=IL

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

Serial number:
4CC8AF2C057FC32A3FA7F44EAADD7EEA

File PE Metadata
Compilation timestamp:
6/20/1992 1:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:qJlvpy2fGYAVzEQqtI4JdqzENw2ejYCoPqcECYkcD5y+wHNCid:qJlvg2fGYAVzE5IwdqzES9jYHqN4cDwT

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 avast_free_antivirus_rus_setup.exe has been seen being distributed by the following URL.

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