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ytab_setup.exe

Kiril Klimko

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 ytab_setup.exe by Kiril Klimko has been detected as adware by 25 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:
Kiril Klimko  (signed and verified)

MD5:
ae9f9361e8f128abe02c6b8bc38ab385

SHA-1:
b40a239aa7cf94c31d2f3153a4bb38a18950a9c4

SHA-256:
9f1fdb4170a0e048aeb0f30897fe7a03df96b2d4a643d4bfaceb0d9d8c5f324b

Scanner detections:
25 / 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:
4/16/2024 10:54:22 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Adware.Dropper.101
1017

Agnitum Outpost
PUA.MultiPlug
7.1.1

AhnLab V3 Security
Adware/Win32.Agent
14.04.24

Avira AntiVirus
ADWARE/Adware.Gen7
7.11.145.40

avast!
Win32:MultiPlug-AC [PUP]
2014.9-140424

AVG
Generic5
2015.0.3495

Bitdefender
Gen:Variant.Adware.Dropper.101
1.0.20.570

Comodo Security
Application.Win32.Multiplug.R
18160

Dr.Web
Trojan.Crossrider.5139
9.0.1.0114

Emsisoft Anti-Malware
Gen:Variant.Adware.Dropper.101
8.14.04.24.11

ESET NOD32
Win32/AdWare.MultiPlug (variant)
8.9718

F-Secure
Gen:Variant.Adware.Dropper.101
11.2014-24-04_5

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

IKARUS anti.virus
Win32.SuspectCrc
t3scan.1.6.1.0

K7 AntiVirus
Adware
13.176.11873

Malwarebytes
PUP.Optional.MultiPlug.A
v2014.04.24.11

McAfee
PUP-FID!AE9F9361E8F1
5600.7151

MicroWorld eScan
Gen:Variant.Adware.Dropper.101
15.0.0.342

NANO AntiVirus
Trojan.Win32.Crossrider.cvopfn
0.28.0.59492

Panda Antivirus
Trj/Genetic.gen
14.04.24.11

Reason Heuristics
PUP.Installer.KirilKlimko.K
14.4.24.11

Rising Antivirus
PE:Malware.MultiPlug!6.13CF
23.00.65.14422

Sophos
MultiPlug
4.98

Vba32 AntiVirus
AdWare.Win64.MultiPlag
3.12.26.0

VIPRE Antivirus
Trojan.Win32.Generic
28570

File size:
1.5 MB (1,578,800 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
WebPick InstalleRex

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

Digital Signature
Signed by:
Kiril Klimko

Authority:
COMODO CA Limited

Valid from:
9/3/2013 1:00:00 AM

Valid to:
9/4/2014 12:59:59 AM

Subject:
CN=Kiril Klimko, O=Kiril Klimko, STREET=Perova 21, L=Kiev, S=Kiev, PostalCode=02125, C=UA

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

Serial number:
4F8445DA07CAF9C24D869920925BA182

File PE Metadata
Compilation timestamp:
3/16/2014 12:34:27 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
49152:wkZfmljLolKWxlg7hWPQKqr2Qjr0NNliSP:wIWLGLl+0P0mZ

Entry address:
0x10A4B

Entry point:
E8, 3E, 4A, 00, 00, E9, 00, 00, 00, 00, 6A, 14, 68, B8, 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:
7.9145  (probably packed)

Code size:
103 KB (105,472 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=4304714&publisher_id=304&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=12914142&external_id=0&session_id=25828284&hardware_id=30132998&installer_file_name=ytab_setup

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