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newtab_setup.exe

Ostap Laponov

This program bundles adware during the download and install process using the InstaleRex pay-per-install app monetizer. The application newtab_setup.exe by Ostap Laponov 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. The file has been seen being downloaded from world-downloads.info. While running, it connects to the Internet address r1.stylezip.info on port 80 using the HTTP protocol.
Publisher:
Ostap Laponov  (signed and verified)

MD5:
3f3ffd6a6db226ef605383813d24f69a

SHA-1:
1b44d4907fe885f3fc240f96e0f874aba4bfc1a0

SHA-256:
e7aa9c43a74e404856717ca70cbd95637748d244d4adc8df2d4ed71a3b9211a8

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Uses Web-Pick's 'File Product', an Installer which wraps various products and downloads and installs it silently through the process.

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:
12/24/2024 11:54:56 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.WebPick.OstapLap.Bundler (M)
16.4.3.6

File size:
1.5 MB (1,618,392 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:
Ostap Laponov

Authority:
COMODO CA Limited

Valid from:
9/9/2013 3:00:00 AM

Valid to:
9/10/2014 2:59:59 AM

Subject:
CN=Ostap Laponov, O=Ostap Laponov, STREET=Minskаya 16, L=Kiev, S=Kiev, PostalCode=04078, C=UA

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

Serial number:
00EA64F94CDE70375038736C9F1C0960DF

File PE Metadata
Compilation timestamp:
1/2/2014 1:54:31 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
49152:/jZDS4WIXlA+pr/pSMKQH4fh2WDdwitpTDsrk:JWIW+pr5ZWCirTD0k

Entry address:
0xD91B

Entry point:
E8, 7E, 44, 00, 00, E9, 00, 00, 00, 00, 6A, 14, 68, 98, DB, 41, 00, E8, DF, 12, 00, 00, E8, CB, 0F, 00, 00, 0F, B7, F0, 6A, 02, E8, 11, 44, 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, 96, 01, 00, 00, 85, C0, 75, 08, 6A, 1C, E8, DC, 00, 00, 00, 59, E8...
 
[+]

Code size:
86 KB (88,064 bytes)

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

http://world-downloads.info/?e=wbn&prv=SNT&publisher=1150&country=RO&ind=2787961330441783646&exid=1388934597338170147&ssd=476901235019852525&hid=8973280501516710611&osid=601&channel=0&sfx=1&category_name=NewTab&install_date=20130105&ntab=http://.../

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=117266872&publisher_id=172&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=351800616&external_id=0&session_id=703601232&hardware_id=820868104&installer_file_name=newtab_setup

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