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rar-key.exe

Stanislav Kabin

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 rar-key.exe, “Installer for FreshApp installer” by Stanislav Kabin 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 fileshare1190.depositfiles.org. While running, it connects to the Internet address r1.stylezip.info on port 80 using the HTTP protocol.
Publisher:
FreshApp installer  (signed by Stanislav Kabin)

Product:
FreshApp installer

Description:
Installer for FreshApp installer

Version:
2014.7.31.1602

MD5:
a2cfc92cade128b37ce09a6957b58237

SHA-1:
58ad0731ed8cb96acd5e85218a7dfe3b6775bca2

SHA-256:
ac0f8c405a2c26eb4af3bc6315ffe768748fb03b948118265ff69671fe723282

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:
12/27/2024 6:12:59 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.WebPick.Installer (M)
16.5.19.6

File size:
314.4 KB (321,896 bytes)

Product version:
1.0.0.3

Copyright:
Copyright © 2014 FreshApp installer

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

Common path:
C:\users\{user}\downloads\rar-key.exe

Digital Signature
Signed by:
Stanislav Kabin

Authority:
Unizeto Technologies S.A.

Valid from:
6/23/2014 6:28:15 AM

Valid to:
6/23/2015 6:28:15 AM

Subject:
E=Stanislav.Kabin@hotmail.com, CN=Stanislav Kabin, O=Stanislav Kabin, C=RU

Issuer:
CN=Certum Code Signing CA, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL

Serial number:
3469022839E88D596EA6FE14C990AF76

File PE Metadata
Compilation timestamp:
3/12/2013 2:51:45 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:0rvbUzkuvcBYC47l2x0vOppHKip3Hrcgrz/xHWS1JH:0rkkuveY3oXpHggf4S19

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:
7.9537

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

The file rar-key.exe has been seen being distributed by the following URL.

http://fileshare1190.depositfiles.org/auth-146126182747612128af316d25044776-177.249.99.78-2539894137-156396447-guest/.../rar-key.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=169168766&publisher_id=691&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=507506298&external_id=0&session_id=1015012596&hardware_id=1184181362&installer_file_name=rar-key

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