download.exe

Gigabase

Fedorov Paul

The is the installer for the WebPick InstalleRex download manager which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed without consent. The application download.exe by Fedorov Paul 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. While running, it connects to the Internet address r1.stylezip.info on port 80 using the HTTP protocol.
Publisher:
Kurs.ru, Inc.  (signed by Fedorov Paul)

Product:
Gigabase

Version:
1.1.0

MD5:
5e9183c7072d566e875944df643897bc

SHA-1:
16915a184c64df5c7b482b251d2274bcf529a083

SHA-256:
6f364e5e35e50212abee5070e161d8d4a83e99cdaa770a9637012d0f49c806b8

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 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
4/25/2024 10:29:25 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Webpick (M)
16.11.19.1

File size:
2 MB (2,057,232 bytes)

Product version:
1.1.0

File type:
Executable application (Win32 EXE)

Bundler/Installer:
WebPick InstalleRex

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

Digital Signature
Signed by:

Authority:
Thawte, Inc.

Valid from:
8/28/2012 3:00:00 AM

Valid to:
8/29/2013 2:59:59 AM

Subject:
CN=Fedorov Paul, OU=Individual Developer, O=No Organization Affiliation, L=Saint-Petersburg, S=Saint-Petersburg, C=RU

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
702D4055EE5CC734192DCBDFFE7AE8E1

File PE Metadata
Compilation timestamp:
5/15/2010 9:38:28 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.56

CTPH (ssdeep):
49152:XzJZ3s7EMAqZ+es/gV0iLhDt3IW/YxQGE:jJZ3v1r/gV0ivZYnE

Entry address:
0x4044

Entry point:
55, 89, E5, 57, 56, 53, 81, EC, AC, 01, 00, 00, E8, 97, 52, 00, 00, C7, 04, 24, 01, 80, 00, 00, E8, 43, 4F, 00, 00, 56, C7, 04, 24, 00, 00, 00, 00, E8, A6, 52, 00, 00, A3, 50, 5B, 42, 00, 53, C7, 04, 24, 08, 00, 00, 00, E8, 26, 32, 00, 00, A3, 00, 5C, 42, 00, 8D, 85, 84, FE, FF, FF, 51, C7, 44, 24, 10, 00, 00, 00, 00, C7, 44, 24, 0C, 60, 01, 00, 00, 89, 44, 24, 08, C7, 44, 24, 04, 00, 00, 00, 00, C7, 04, 24, A4, B2, 40, 00, E8, D0, 51, 00, 00, 83, EC, 14, C7, 44, 24, 04, A5, B2, 40, 00, C7, 04, 24, 30, 5C...
 
[+]

Code size:
33 KB (33,792 bytes)

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

TCP (HTTP):
Connects to r1.stylezip.info  (54.186.255.26:80)

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