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newtab_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 newtab_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:
b614ace67f29cbc0a3a92619dfedfe99

SHA-1:
dbdbd881d9bd4cf961c500830bcecbbd55965213

SHA-256:
c93a1e9463cbfb4a50c69142453ab70a85ed0b232d1bcb3fc76b0b99bc67c7b4

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:
4/25/2024 12:29:50 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.WebPick.PeterSulik.Bundler (M)
16.2.6.19

File size:
1.6 MB (1,635,856 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
WebPick InstalleRex

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

Digital Signature
Signed by:
Peter Sulik

Authority:
COMODO CA Limited

Valid from:
11/27/2013 2:00:00 AM

Valid to:
11/28/2014 1:59:59 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 3:08:09 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
49152:dPEcaMsgAAG7yTlMliH/I8ajyhZxbosJfdn3:dPX+gw7yTuogGtJfdn3

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:
7.8791  (probably packed)

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=61400934&publisher_id=140&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=184202802&external_id=0&session_id=368405604&hardware_id=429806538&installer_file_name=newtab_setup

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