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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. The file has been seen being downloaded from gigabase.info. 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:
1.2.0

MD5:
54a5e0cbdd0a6d5c6db62997cb0934d9

SHA-1:
23fae43758a40a2cb1ad4c4e51b026a76ae576e2

SHA-256:
420553bca9aca79051c047be44674fbbbc1000131882ff9bf25e84da5f534500

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:
4/19/2024 2:14:26 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Webpick.FedorovPaul.Bundler (M)
16.2.1.15

File size:
1.8 MB (1,894,920 bytes)

Product version:
1.2.0

File type:
Executable application (Win32 EXE)

Bundler/Installer:
WebPick InstalleRex

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

Digital Signature
Signed by:
Fedorov Paul

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:
2/19/2012 5:01:49 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.22

CTPH (ssdeep):
49152:e+ej3p03v/yxlKLaTdMInu6qm8FiVxPt6VFPe8ji3G5:D43p033yxQWTdMInu3m8Fjsg

Entry address:
0x4327

Entry point:
55, 89, E5, 57, 56, 53, 81, EC, AC, 01, 00, 00, FF, 15, 74, 93, 42, 00, C7, 04, 24, 01, 80, 00, 00, FF, 15, 58, 94, 42, 00, 53, C7, 04, 24, 00, 00, 00, 00, FF, 15, 98, 94, 42, 00, 56, A3, 40, 7B, 42, 00, C7, 04, 24, 08, 00, 00, 00, E8, 8D, 3B, 00, 00, A3, 9C, 7B, 42, 00, 8D, 85, 84, FE, FF, FF, 57, 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, 01, B3, 40, 00, FF, 15, AC, 94, 42, 00, 83, EC, 14, C7, 44, 24, 04, 02, B3, 40, 00, C7...
 
[+]

Code size:
34.5 KB (35,328 bytes)

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

http://gigabase.info/.../download.exe

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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