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ext_setup.exe

Boris Vladimirovich BOBOVSKY

The setup package is an adware installer (using InstalleRex) that will deploy with little or no user consent adware offerings including but not limited to browser extensions (add-ins, toolbars) that will inject various forms of advertising in the user's browser. The application ext_setup.exe by Boris Vladimirovich BOBOVSKY 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 WebPick InstalleRex installer.
Publisher:
Boris Vladimirovich BOBOVSKY  (signed and verified)

MD5:
bade78f95bf0ee06548ef760181dad10

SHA-1:
6640436cd8842bb70cfcc3c0ea0d5cfc14aa05be

SHA-256:
37b07d417e3e478dc5df0f056d017fd252f623f5e70ee841f1e51fa9eb1681be

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Bundles additional adware products (monetized browser extensions, ad injectors) in the installer.

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 6:41:45 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.WebPick.BorisVla.Bundler (M)
16.6.8.3

File size:
685 KB (701,456 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
WebPick InstalleRex

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\addons\ext_setup.exe

Digital Signature
Signed by:
Boris Vladimirovich BOBOVSKY

Authority:
Unizeto Technologies S.A.

Valid from:
12/27/2013 4:31:44 AM

Valid to:
12/27/2014 4:31:44 AM

Subject:
E=bob@borr.info, CN="Open Source Developer, Boris Vladimirovich BOBOVSKY", O=Boris Vladimirovich BOBOVSKY, C=UA

Issuer:
CN=Certum Level III CA, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL

Serial number:
1ADBC4E5D3604FB9725702528437E82A

File PE Metadata
Compilation timestamp:
1/2/2014 9:54:31 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
12288:/uCn5DA1iBjZIjqFWciTQbtDed5afCOB7UEetIhyaawY7vSxWYsXjyft9usRXlmy:/1nuYjZ0qFzbtDedcfCqxAwQqYVOft91

Entry address:
0xD91B

Entry point:
E8, 7E, 44, 00, 00, E9, 00, 00, 00, 00, 6A, 14, 68, 98, DB, 41, 00, E8, DF, 12, 00, 00, E8, CB, 0F, 00, 00, 0F, B7, F0, 6A, 02, E8, 11, 44, 00, 00, 59, B8, 4D, 5A, 00, 00, 66, 39, 05, 00, 00, 40, 00, 74, 04, 33, DB, EB, 33, A1, 3C, 00, 40, 00, 81, B8, 00, 00, 40, 00, 50, 45, 00, 00, 75, EB, B9, 0B, 01, 00, 00, 66, 39, 88, 18, 00, 40, 00, 75, DD, 33, DB, 83, B8, 74, 00, 40, 00, 0E, 76, 09, 39, 98, E8, 00, 40, 00, 0F, 95, C3, 89, 5D, E4, E8, 96, 01, 00, 00, 85, C0, 75, 08, 6A, 1C, E8, DC, 00, 00, 00, 59, E8...
 
[+]

Code size:
86 KB (88,064 bytes)

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

http://fastwinnermyall.ru/?e=grts&publisher=1160&dd=4&country=BR&ind=1035633797212432879&exid=0&ssd=11222821942365639892&hid=11862957144437634708&osid=601&channel=0&sfx=1&category_name=GreatSaver&install_date=20130106

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to i1.stylefun.info  (198.7.61.118:80)

TCP (HTTP):
Connects to dl.softservers.net  (184.154.145.171:80)

TCP (HTTP):
Connects to c1.getapplicationmy.info  (54.201.215.30:80)

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