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download.exe

Stas Kosmov

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 download.exe, “Installer for Supersoftware App” by Stas Kosmov 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:
Supersoftware App  (signed by Stas Kosmov)

Product:
Supersoftware App

Description:
Installer for Supersoftware App

Version:
2014.6.8.1539

MD5:
a2bdfb29be566818521e5976176cebb4

SHA-1:
d4dde793331809c0fa38538cf26c1cd03e32951d

SHA-256:
eac7e8fe96ebc90fea27ceed0c4d4b29e386ff8b5ca2c663c6586086325f1121

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:
4/16/2024 7:17:33 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware (M)
16.7.29.8

File size:
315 KB (322,552 bytes)

Product version:
1.0.0.3

Copyright:
Copyright © 2014 Supersoftware App

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

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

Digital Signature
Signed by:
Stas Kosmov

Authority:
COMODO CA Limited

Valid from:
9/24/2013 2:00:00 AM

Valid to:
9/25/2014 1:59:59 AM

Subject:
CN=Stas Kosmov, O=Stas Kosmov, STREET=Levitana 21, L=Kiev, S=Kiev, PostalCode=03083, C=UA

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

Serial number:
7A2834207C5588F506D3CF09661E12F2

File PE Metadata
Compilation timestamp:
3/12/2013 10:51:45 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:JrabUzkuvcBYC47l2x1V/GgGyjAj43W9jXdpcDfUEA1KtmLf:JrDkuveY3SV/dK4gjrcV7ti

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:
7.9524

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=368&x=TVRRd01qSTROemd3T0MwM09TNHhPREV1TVRNd0xqSXhNZz09&z=26&c=1&adurl=66761812&pl=660&plurl=19318918

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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