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sharebeastdownload.exe

Stas Kosmov

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 sharebeastdownload.exe, “Installer for TopApp soft” 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 applicationgrabb.net. While running, it connects to the Internet address r1.stylezip.info on port 80 using the HTTP protocol.
Publisher:
TopApp soft  (signed by Stas Kosmov)

Product:
TopApp soft

Description:
Installer for TopApp soft

Version:
2014.5.26.2303

MD5:
2c1b5cbce64784e94b3c6b680d206540

SHA-1:
8a028679a119060aeb623d8380bb2805df843624

SHA-256:
0ab1b5ceb4e0c0d959bb7e71b733068a3971bd1b198543f94d39dc162ddba021

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:
4/26/2024 10:39:04 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.WebPick.Installer (M)
16.1.8.5

File size:
315 KB (322,600 bytes)

Product version:
1.0.0.3

Copyright:
Copyright © 2014 TopApp soft

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

Language:
Language Neutral

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

Digital Signature
Signed by:
Stas Kosmov

Authority:
COMODO CA Limited

Valid from:
9/24/2013 7:00:00 AM

Valid to:
9/25/2014 6:59:59 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 3:51:45 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:RrYbUzkuvcBYC47l2xa6g4FhwjZd/9d1XKxlo/ecwrHs5IE:RrdkuveY36kjZP/XKxlSZAHe

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

http://applicationgrabb.net/.../SharebeastDownload.exe

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=43939440&publisher_id=393&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=131818320&external_id=0&session_id=263636640&hardware_id=307576080&installer_file_name=sharebeastdownload

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