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newtab_setup.exe

Pavel KRASNOV

This installer (utilizes the InstalleRex from WebPick) is designed to bundle additional software offerings such as adware and malware, mostly web browser extensions in the download manager, with minimal user consent. In most cases the setup process will install a browser extension for IE, Chrome and Firefox by default. The application newtab_setup.exe by Pavel KRASNOV 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.
Publisher:
Pavel KRASNOV  (signed and verified)

MD5:
7eb062c06c63a2483f77be46dffbfd90

SHA-1:
65f9ac9f9250daac91a3b2c774f5b524252d3134

SHA-256:
4af6a73f80771006c2188814412a4eb7f3fa0cda0d4478f0216e8463e793436c

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Bundles additional adware offers in the installer/setup process.

Description:
This is an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
12/24/2024 11:45:38 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.WebPick.PavelKRA.Bundler (M)
16.4.20.3

File size:
1.5 MB (1,538,040 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:
Pavel KRASNOV

Authority:
Unizeto Technologies S.A.

Valid from:
1/17/2014 3:46:29 PM

Valid to:
1/17/2015 3:46:29 PM

Subject:
E=pavel0125@hotmail.com, CN="Open Source Developer, Pavel KRASNOV", O=Pavel KRASNOV, C=RU

Issuer:
CN=Certum Level III CA, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL

Serial number:
145B82E22CCF1D1A2268198D76B51075

File PE Metadata
Compilation timestamp:
1/27/2014 6:38:36 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
24576:gpD4YZMJ49u9ivEpWskGPLL6MQ3ShKvnjjbBbqVMdtVpgabov7qJwrcR+OJ7IsXa:k4YZSk2rPLm7CYvnbRWKtVpVE2JJRXJk

Entry address:
0xE3DB

Entry point:
E8, 7E, 44, 00, 00, E9, 00, 00, 00, 00, 6A, 14, 68, C8, ED, 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...
 
[+]

Entropy:
7.9339  (probably packed)

Code size:
89 KB (91,136 bytes)

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

http://world-downloads.info/?e=wbn&prv=SNT&publisher=625&country=MY&ind=8788724012735832933&exid=1391408501310796558&ssd=15511260065165383198&hid=1887051427336658812&osid=601&channel=0&sfx=1&jc=1&category_name=NewTab&install_date=20130203&ntab=http://.../

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

TCP (HTTP):
Connects to i1.stylefun.info  (198.7.61.118:80)

TCP (HTTP):
Connects to dl.softservers.net  (184.154.145.171:80)

TCP (HTTP):
Connects to c1.getapplicationmy.info  (54.201.215.30:80)

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