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download.exe

Sergey Panov

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 download.exe, “Installer for MountainApp” by Sergey Panov 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 www.adzzone.com. While running, it connects to the Internet address r1.stylezip.info on port 80 using the HTTP protocol.
Publisher:
MountainApp  (signed by Sergey Panov)

Product:
MountainApp

Description:
Installer for MountainApp

Version:
2014.6.12.1603

MD5:
b16ff3af4a40fcd6d591b9b831c6b831

SHA-1:
b872fb79f30e70bf398c43d0bd6eae4970ee19f4

SHA-256:
ad5c7ae97e3b5d634ad3a0ff364686571d9897f519c95bae7616c20a30b7acb9

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:
5/3/2024 6:11:29 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware (M)
17.3.15.12

File size:
316.1 KB (323,688 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)

Language:
Language Neutral

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

Digital Signature
Signed by:
Sergey Panov

Authority:
COMODO CA Limited

Valid from:
9/26/2013 2:00:00 AM

Valid to:
9/27/2014 1:59:59 AM

Subject:
CN=Sergey Panov, O=Sergey Panov, STREET=Nevsky 34, L=Kiev, S=centr, PostalCode=03062, C=UA

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

Serial number:
67EDB237B456844DA741B5D82EEC432C

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

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 download.exe has been seen being distributed by the following URL.

http://www.adzzone.com/click.php?a=311&x=TVRRd01qZ3lNakkyT1MweE9UY3VNUzR4T1M0eE16az0=&z=26&c=1&adurl=67804852&pl=160&plurl=19665869

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=633562628&publisher_id=335&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=1900687884&external_id=0&session_id=3801375768&hardware_id=4434938396&installer_file_name=download

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