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newtab_setup.exe

Andrew Kruzov

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 Andrew Kruzov has been detected as adware by 30 anti-malware scanners. The program is a setup application that uses the WebPick InstalleRex installer. It is built using the Crossrider cross-browser extension toolkit. While the file utilizes the Crossrider framework and delivery services, it is not owned by Crossrider.
Publisher:
Andrew Kruzov  (signed and verified)

MD5:
b15732ecac90a1209b94859ffe9ca9d8

SHA-1:
f01d2cbbbbfa073fcd73a9a3391675aa236d130e

SHA-256:
2960eccdbeb5d7e98dcf7007179cf9e9c0e441932a8d2e57c263e919e0494fc8

Scanner detections:
30 / 68

Status:
Adware

Explanation:
The software may change the browser's home page and search provider settings as well as display advertisements.

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:
4/16/2024 8:50:14 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Adware.Dropper.101
882

Agnitum Outpost
PUA.MultiPlug
7.1.1

AhnLab V3 Security
Adware/Win32.Agent
2014.09.06

Avira AntiVirus
TR/Graftor.141601.A
7.11.171.10

avast!
Win32:MultiPlug-AQ [PUP]
140813-1

AVG
Adware Generic_r.JY
2014.0.4015

Bitdefender
Gen:Variant.Adware.Dropper.101
1.0.20.1240

Clam AntiVirus
Win.Adware.Multiplug-16
0.98/19337

Comodo Security
Application.Win32.Multiplug.GETF
19432

Dr.Web
Trojan.Crossrider.12912
9.0.1.05190

Emsisoft Anti-Malware
Gen:Variant.Adware.Dropper.101
9.0.0.4324

ESET NOD32
probably Win32/AdWare.MultiPlug.R application
7.0.302.0

F-Prot
W32/MultiPlug.C.gen
v6.4.7.1.166

F-Secure
Gen:Variant.Adware.Dropper.101
11.2014-05-09_6

G Data
Gen:Variant.Adware.Dropper.101
14.9.24

IKARUS anti.virus
AdWare.MultiPlug
t3scan.1.7.5.0

K7 AntiVirus
Adware
13.183.13286

Kaspersky
not-a-virus:AdWare.JS.MultiPlug
15.0.0.463

Malwarebytes
PUP.Optional.MultiPlug
v2014.09.05.09

McAfee
PUP-FID
5600.7016

MicroWorld eScan
Gen:Variant.Adware.Dropper.101
15.0.0.744

NANO AntiVirus
Riskware.Win32.Crossrider.cwprty
0.28.2.61942

Panda Antivirus
Trj/Genetic.gen
14.09.05.09

Quick Heal
AdWare.MultiPlag.ace
9.14.14.00

Reason Heuristics
PUP.Installer.AndrewKruzov.M
14.9.5.21

Rising Antivirus
PE:Malware.MultiPlug!6.13CF
23.00.65.14903

Sophos
MultiPlug
4.98

Vba32 AntiVirus
AdWare.JS.MultiPlug
3.12.26.3

VIPRE Antivirus
Threat.4150696
32210

Zillya! Antivirus
Adware.MultiPlug.Win32.11
2.0.0.1912

File size:
1.5 MB (1,613,808 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:
Andrew Kruzov

Authority:
COMODO CA Limited

Valid from:
9/26/2013 7:00:00 PM

Valid to:
9/27/2014 6:59:59 PM

Subject:
CN=Andrew Kruzov, O=Andrew Kruzov, STREET=Savrasova 31, L=Kiev, S=Kiev, PostalCode=03110, C=UA

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

Serial number:
53C0E7306A4ED340CBA044D801891A67

File PE Metadata
Compilation timestamp:
4/16/2014 4:36:39 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
24576:5rEmZrpNv5Bn2FJsfk20JgziW4WYNE+nPD7m9NGLXT2QmA0rUSXL9:hZtbBn4JsgJgzt4WY9nb72GDTWsWB

Entry address:
0x1089B

Entry point:
E8, 3E, 4A, 00, 00, E9, 00, 00, 00, 00, 6A, 14, 68, 80, 21, 42, 00, E8, 1F, 21, 00, 00, E8, E0, 07, 00, 00, 0F, B7, F0, 6A, 02, E8, D1, 49, 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, 90, 37, 00, 00, 85, C0, 75, 08, 6A, 1C, E8, DC, 00, 00, 00, 59, E8...
 
[+]

Entropy:
7.9136  (probably packed)

Code size:
102.5 KB (104,960 bytes)

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

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

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