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ezdownloader.exe

Igor Moroz

This is a WebPick installer that bundles (with very minimal user consent) a number of adware browser extensions which inject ads in the browser. The application ezdownloader.exe, “Installer for MountainApp” by Igor Moroz 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 (Tarma) installer. The file has been seen being downloaded from ch.toolkitset.info. While running, it connects to the Internet address r1.stylezip.info on port 80 using the HTTP protocol.
Publisher:
MountainApp  (signed by Igor Moroz)

Product:
MountainApp

Description:
Installer for MountainApp

Version:
2014.6.12.1603

MD5:
f4a1832ed7cc8a770ea477cb40e85a7a

SHA-1:
cbbda27dde8fb7c5478a54472a37d9a35794866e

SHA-256:
a448091ec714e53fd3a98e927b734fa4afba48c1a8b8a67ec619c70b01c80e3d

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Uses Web-Pick's 'File Product', an Installer which wraps various products and downloads and installs it silently through the process, hosted on TusFiles.

Analysis date:
12/26/2024 5:28:10 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.WebPick.Installer (M)
16.1.25.20

File size:
316.1 KB (323,728 bytes)

Product version:
1.0.0.3

Copyright:
Copyright © 2014 MountainApp

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

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

Digital Signature
Signed by:
Igor Moroz

Authority:
COMODO CA Limited

Valid from:
8/19/2013 2:00:00 AM

Valid to:
8/20/2014 1:59:59 AM

Subject:
CN=Igor Moroz, O=Igor Moroz, STREET=Tarasovskaya 15A, L=Kiev, S=Kiev, PostalCode=01033, C=UA

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

Serial number:
67678E825742046BF81E9F79E057FACE

File PE Metadata
Compilation timestamp:
3/12/2013 9:51:45 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:Yr5bUzkuvcBYC47l2xhXcDp5xikxyI3rqrupq0FNhAna9iydforDb:YrqkuveY3fxikxyI7qSpBAna4ydfEb

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...
 
[+]

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

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

http://ch.toolkitset.info/.../?&q=EzDownloader&product_name=EzDownloader&installer_file_name=EzDownloader&q=EzDownloader&q=EzDownloader&external_id=1402776994928128809&self_redirect=1

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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