fastdownload.exe

Moshe Caspi

This program bundles adware during the download and install process using the InstaleRex pay-per-install app monetizer. The application fastdownload.exe by Moshe Caspi 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 storebox1.info. While running, it connects to the Internet address r1.stylezip.info on port 80 using the HTTP protocol.
Publisher:
RightClick  (signed by Moshe Caspi)

Product:
RightClick

Description:
Installer

Version:
2013.1.29.1443

MD5:
1de17411c9ae35c92b618f1abfeaa723

SHA-1:
ac22c444151a3f3240c4378ce69fefa8a14d3c92

SHA-256:
3a0727fde75b5b851e4f72b13094aeda680bca0369555b920ce1c56789f63471

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:
11/23/2024 5:25:19 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware (M)
16.8.7.14

File size:
304.1 KB (311,424 bytes)

Product version:
1.0

Copyright:
Copyright © 2012 RightClick

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

Language:
Language Neutral

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

Digital Signature
Signed by:

Authority:
COMODO CA Limited

Valid from:
8/2/2012 12:00:00 AM

Valid to:
8/2/2013 11:59:59 PM

Subject:
CN=Moshe Caspi, O=Moshe Caspi, STREET=Hashuk 39, L=Tel Aviv, S=Israel, PostalCode=66067, C=IL

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

Serial number:
00B1B859272556EC39AF8F0E4A626C2ADC

File PE Metadata
Compilation timestamp:
1/17/2013 3:57:29 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:ZrgQsvgcCC0Z18W2dGwhXFA0MvWfdaHwEk1CrCsAredLgylz4IXbQIbR:ZrgTYpC078WaGsRMvtwEbAreFdx4Eb

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:
7.9613

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

The file fastdownload.exe has been seen being distributed by the following URL.

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=304879488&publisher_id=048&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=914638464&external_id=0&session_id=1829276928&hardware_id=2134156416&installer_file_name=fastdownload

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