ytab_setup.exe

Peter Sulik

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 ytab_setup.exe by Peter Sulik 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. It is also typically executed from the user's temporary directory. While running, it connects to the Internet address r1.stylezip.info on port 80 using the HTTP protocol.
Publisher:
Peter Sulik  (signed and verified)

MD5:
94dcd1891efd27b9f1bb3bc6d713ed1f

SHA-1:
6df571f847a7174886bb352b404fd24292bff756

SHA-256:
62b0cf541ff8eacd4a1ecfd7d813aaf838db02969828cb2bb17b36dd26d1d6a2

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 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:
4/27/2024 1:24:05 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.WebPick (M)
17.2.3.4

File size:
726.5 KB (743,888 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
WebPick InstalleRex

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

Digital Signature
Signed by:

Authority:
COMODO CA Limited

Valid from:
11/27/2013 5:30:00 AM

Valid to:
11/28/2014 5:29:59 AM

Subject:
CN=Peter Sulik, O=Peter Sulik, STREET=Izyumskaya 11, L=Kiev, S=Kiev, PostalCode=03039, C=UA

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

Serial number:
51664A6CB00BE789CB474E7F25A72C4D

File PE Metadata
Compilation timestamp:
9/29/2013 6:38:09 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

Entry address:
0x14438

Entry point:
E8, 04, 41, 00, 00, E9, 00, 00, 00, 00, 6A, 14, 68, 48, 8F, 42, 00, E8, B2, 06, 00, 00, E8, D1, 42, 00, 00, 0F, B7, F0, 6A, 02, E8, 97, 40, 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, E8, 0C, 00, 00, 85, C0, 75, 08, 6A, 1C, E8, DC, 00, 00, 00, 59, E8...
 
[+]

Entropy:
7.6923

Code size:
133.5 KB (136,704 bytes)

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

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

TCP (HTTP):
Connects to c1.stylezip.info  (54.186.255.26:80)

 
http://c1.stylezip.info/?step_id=1&installer_id=573912672&publisher_id=739&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=1721738016&external_id=0&session_id=3443476032&hardware_id=4017388704&installer_file_name=ytab_setup

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