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avast.exe

WorldSetup

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application avast.exe by WorldSetup has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the installCore installer. The installer is marketed through download protals and search ads as the free AVAST Antivirus but will also install additional software offers which include adware, PUPs and browser toolbars.
Publisher:
WorldSetup  (signed and verified)

MD5:
425ee403a470a798f7261fc37f6ca215

SHA-1:
866ebd94f4fa71acd7fae3ac8d7f4be86543946c

SHA-256:
993ad10031875a381e21bb35105dd9553429f8128896f33b0891c70a9306cf62

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Description:
This is an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
12/26/2024 12:32:58 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore (M)
16.8.10.19

File size:
645.8 KB (661,344 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

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

Digital Signature
Signed by:
WorldSetup

Authority:
COMODO CA Limited

Valid from:
1/3/2014 1:00:00 AM

Valid to:
1/4/2015 12:59:59 AM

Subject:
CN=WorldSetup, O=WorldSetup, STREET=Lilienblum 28 St., L=Tel-Aviv, S=Tel-Aviv, PostalCode=6513307, C=IL

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

Serial number:
6EEF11096F7B5CDC42244636F32F2208

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:uvpga3Uynqj/IzlkspSuiJ3rOagkmFd/1X/qZLrX2fMK:uvmDEln8uEium/F/qhK

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

http://d13dhn7ldhrcf6.cloudfront.net/?domain=avast&name=avast! Free Antivirus 2014&icon=aHR0cDovL3pkamVjaWEucGwuc2Z0Y2RuLm5ldC9wbC9zY3JuLzE4MDAwLzE4MDA3L2F2YXN0LWZyZWUtYW50aXZpcnVzLTEtODB4ODAucG5n&url=aHR0cDovL2ZpbGVzLmF2YXN0LmNvbS9pYXZzNXgvYXZhc3RfZnJlZV9hbnRpdmlydXNfc2V0dXAuZXhl&os=&lang=pl_PL&desc=TmllemF3b2RueSwgZGFybW93eSBpIMWCYXR3eSB3IHXFvHljaXUga29tcGxldG55IHByb2dyYW0gYW50eXdpcnVzb3d5

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