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ytab_setup.exe

Julian Pankratov

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 Julian Pankratov 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:
Julian Pankratov  (signed and verified)

MD5:
c6eadf7cba79a2ddfd92d2a5ec9d736f

SHA-1:
29a6286fed2b6fc25198cb7b7bc9a94b84f4a6e4

SHA-256:
d05b66d4a108dd2e44e33d9df58ea95664d68371bc56ab8b6ecf12eeae25ff11

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:
12/25/2024 1:04:04 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.WebPick (M)
17.3.7.0

File size:
1.3 MB (1,385,752 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:
Julian Pankratov

Authority:
COMODO CA Limited

Valid from:
10/14/2013 4:00:00 AM

Valid to:
10/15/2014 3:59:59 AM

Subject:
CN=Julian Pankratov, O=Julian Pankratov, STREET=Gagarіna 11, L=Kiev, S=Kiev, PostalCode=02094, C=UA

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

Serial number:
00D14C8CC7422B7B416198EEB359191765

File PE Metadata
Compilation timestamp:
9/29/2013 5:06:43 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

Entry address:
0x1189F

Entry point:
E8, ED, 40, 00, 00, E9, 00, 00, 00, 00, 6A, 14, 68, C0, 90, 42, 00, E8, 4B, 2A, 00, 00, E8, BA, 42, 00, 00, 0F, B7, F0, 6A, 02, E8, 80, 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, 32, 21, 00, 00, 85, C0, 75, 08, 6A, 1C, E8, DC, 00, 00, 00, 59, E8...
 
[+]

Entropy:
7.8499  (probably packed)

Code size:
135 KB (138,240 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=620844018&publisher_id=208&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=1862532054&external_id=0&session_id=3725064108&hardware_id=4345908126&installer_file_name=ytab_setup

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