s62cczfo.exe

Ivan Kostin

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 file s62cczfo.exe, “Installer for SummerSoft” by Ivan Kostin 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. It is also typically executed from the user's temporary directory. While running, it connects to the Internet address r1.stylezip.info on port 80 using the HTTP protocol.
Publisher:
SummerSoft  (signed by Ivan Kostin)

Product:
SummerSoft

Description:
Installer for SummerSoft

Version:
2013.10.10.1735

MD5:
42c41fc0a6134c46e59b625365905b17

SHA-1:
a033e8e335b03b9c350827c0c81d3fdafe5785e7

SHA-256:
42167de3accc2a82759337eb4f4810e2a86ab03caef3abe961e6a5a3d0294fe1

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:
4/25/2024 10:54:12 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.WebPick (M)
17.3.16.7

File size:
303.4 KB (310,696 bytes)

Product version:
1.0.0.1

Copyright:
Copyright © 2012 SummerSoft

Original file name:
TSULoader.exe

Installer:
WebPick InstalleRex (Tarma)

Common path:
C:\users\{user}\appdata\local\temp\s62cczfo.exe.part

Digital Signature
Signed by:

Authority:
COMODO CA Limited

Valid from:
8/25/2013 2:00:00 AM

Valid to:
8/26/2014 1:59:59 AM

Subject:
CN=Ivan Kostin, O=Ivan Kostin, STREET=Pobedy 33/1, L=Kyiv, S=Kyiv, PostalCode=03170, C=UA

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

Serial number:
00EB11D24CE6DDBBF752FE4DC3D683D2BF

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 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=634651808&publisher_id=346&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=1903955424&external_id=0&session_id=3807910848&hardware_id=4442562656&installer_file_name=s62cczfo.part

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