skypemoticons.exe

Vadim Travkin

This is a WebPick installer that bundles (with very minimal user consent) a number of adware browser extensions using the JustPlug.it browser framework. The application skypemoticons.exe, “Installer for Excellent4App” by Vadim Travkin has been detected as adware by 13 anti-malware scanners. The program is a setup application that uses the WebPick InstalleRex (Tarma) installer. The setup program uses Web-Pick's InstalleRex download manager and installer to bundle potentially unwanted ad-supported software which includes toolbars and browser extensions through a pay-per-install monetization scheme.
Publisher:
Excellent4App  (signed by Vadim Travkin)

Product:
Excellent4App

Description:
Installer for Excellent4App

Version:
2014.5.18.1727

MD5:
c1d6f9bfb0570d2deb5ca334629d77e2

SHA-1:
75d62b60f1bda88cb47e76380792d4f285beffaf

SHA-256:
ed86e0e21ac35fd7b1114201335e6a5a3354d99d7dbf07cbea9f374120b334e2

Scanner detections:
13 / 68

Status:
Adware

Explanation:
Uses the InstalleRex from WebPick Internet Holdings to install bundled add-ons including toolbars and other web browser extensions.

Analysis date:
4/26/2024 2:27:24 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Kazy.324119
510

Agnitum Outpost
Trojan.AntiFW
7.1.1

Bitdefender
Gen:Variant.Kazy.324119
1.0.20.1275

Comodo Security
Application.Win32.InstalleRex.KG
18306

Emsisoft Anti-Malware
Gen:Variant.Kazy.324119
8.15.09.12.08

Kaspersky
Trojan.Win32.AntiFW
14.0.0.1436

Malwarebytes
PUP.Optional.Excellent4App
v2015.09.12.08

MicroWorld eScan
Gen:Variant.Kazy.324119
16.0.0.765

NANO AntiVirus
Riskware.Win32.InfoLeak.cvgqot
0.28.0.59921

Quick Heal
Trojan.AntiFW.A5
9.15.14.00

Reason Heuristics
Adware.WebPick.Installer (M)
15.8.6.5

VIPRE Antivirus
Threat.4150696
29396

File size:
314.9 KB (322,480 bytes)

Product version:
1.0.0.3

Copyright:
Copyright © 2014 Excellent4App

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\skypemoticons.exe

Digital Signature
Signed by:

Authority:
COMODO CA Limited

Valid from:
8/20/2013 8:00:00 PM

Valid to:
8/21/2014 7:59:59 PM

Subject:
CN=Vadim Travkin, O=Vadim Travkin, STREET=Kutuzova 3, L=Kiev, S=Kiev, PostalCode=01011, C=UA

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

Serial number:
2C444E64B9B195CCD1B5F1BA8F0B2830

File PE Metadata
Compilation timestamp:
3/12/2013 4:51:45 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:vr4bUzkuvcBYC47l2x9bpAJiqS1JDoU0/JleWvJ6AbJbkvIxBu4Ti3iQV:vr9kuveY3ImYZ15oU0/HtbJbkgXJGyQV

Entry address:
0x14DB

Entry point:
55, 8B, EC, 81, EC, 2C, 06, 00, 00, 53, 56, 33, DB, 57, 66, 89, 9D, DC, FB, FF, FF, 89, 5D, F4, 89, 5D, FC, FF, 15, 74, 30, 40, 00, A3, 08, 44, 40, 00, FF, 15, 70, 30, 40, 00, 8B, F8, 8D, 45, EC, 50, FF, 15, 6C, 30, 40, 00, FF, 15, 68, 30, 40, 00, 8B, F0, F7, D6, 33, F7, FF, 15, 64, 30, 40, 00, 33, F0, 8B, 45, F0, 33, 45, EC, 68, 04, 01, 00, 00, 33, F0, 8D, 85, D4, F9, FF, FF, 50, 53, FF, 15, 60, 30, 40, 00, 85, C0, 75, 41, FF, 15, 5C, 30, 40, 00, 83, F8, 78, 75, 1A, 68, A8, 32, 40, 00, E8, 43, FB, FF, FF...
 
[+]

Entropy:
7.9541

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

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

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=26038630&publisher_id=603&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=78115890&external_id=0&session_id=156231780&hardware_id=182270410&installer_file_name=skypemoticons

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