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newtab_setup.exe

Sergei Ivanovich Drozdov

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 Sergei Ivanovich Drozdov has been detected as adware by 23 anti-malware scanners. The program is a setup application that uses the WebPick InstalleRex installer. It is built using the Crossrider cross-browser extension platform. While the file utilizes the Crossrider framework and delivery services, it is not owned by Crossrider.
Publisher:
Sergei Ivanovich Drozdov  (signed and verified)

MD5:
9a35b1f2c4c55e067093ed36fd8b09f3

SHA-1:
507be32fba9467e673db19746469f283f8b7970a

SHA-256:
4a4f5da4dc72cec8e5978a1308703b3489b7f9ac7b03d936b9d9b8924565dc23

Scanner detections:
23 / 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 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:
4/24/2024 4:48:11 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Adware.Dropper.101
1018

Agnitum Outpost
PUA.MultiPlug
7.1.1

AhnLab V3 Security
Adware/Win32.Agent
14.04.23

Avira AntiVirus
ADWARE/Adware.Gen7
7.11.144.202

avast!
Win32:MultiPlug-AK [PUP]
2014.9-140423

AVG
Generic_r
2015.0.3496

Bitdefender
Gen:Variant.Adware.Dropper.101
1.0.20.565

Comodo Security
Application.Win32.Multiplug.R
18152

Dr.Web
Trojan.Crossrider.11700
9.0.1.0113

Emsisoft Anti-Malware
Gen:Variant.Adware.Dropper.101
8.14.04.23.04

ESET NOD32
Win32/AdWare.MultiPlug (variant)
8.9709

F-Secure
Gen:Variant.Adware.Dropper.101
11.2014-23-04_4

G Data
Gen:Variant.Adware.Dropper.101
14.4.24

K7 AntiVirus
Unwanted-Program
13.176.11847

McAfee
PUP-FID!9A35B1F2C4C5
5600.7152

MicroWorld eScan
Gen:Variant.Adware.Dropper.101
15.0.0.339

NANO AntiVirus
Trojan.Win32.Crossrider.cwkdyy
0.28.0.59492

Panda Antivirus
Trj/Genetic.gen
14.04.23.04

Reason Heuristics
PUP.Installer.SergeiIvanovichDrozdov.M
14.4.23.4

Rising Antivirus
PE:Malware.MultiPlug!6.13CF
23.00.65.14421

Sophos
MultiPlug
4.98

Vba32 AntiVirus
AdWare.Win64.MultiPlag
3.12.26.0

VIPRE Antivirus
Trojan.Win32.Generic
28526

File size:
1.5 MB (1,608,776 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:
Sergei Ivanovich Drozdov

Authority:
Unizeto Technologies S.A.

Valid from:
1/8/2014 11:54:34 AM

Valid to:
1/8/2015 11:54:34 AM

Subject:
E=drozdov54@hotmail.com, CN="Open Source Developer, Sergei Ivanovich Drozdov", OU=Sedro Soft, O=Sergei Ivanovich Drozdov, C=RU

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

Serial number:
4E05AFB21C1318DB8A2C0669760C9050

File PE Metadata
Compilation timestamp:
4/10/2014 11:03:01 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
49152:K8/ZYFwZpMOYdOu2zCxTztHln5lLksDFHgjXIoIOP:KV40OxzCxvtflL5H6QY

Entry address:
0x1080B

Entry point:
E8, BE, 4A, 00, 00, E9, 00, 00, 00, 00, 6A, 14, 68, F0, 21, 42, 00, E8, 9F, 21, 00, 00, E8, E0, 07, 00, 00, 0F, B7, F0, 6A, 02, E8, 51, 4A, 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, 10, 38, 00, 00, 85, C0, 75, 08, 6A, 1C, E8, DC, 00, 00, 00, 59, E8...
 
[+]

Entropy:
7.9211  (probably packed)

Code size:
102.5 KB (104,960 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=4248270&publisher_id=248&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=12744810&external_id=0&session_id=25489620&hardware_id=29737890&installer_file_name=newtab_setup

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