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downloadmanager.exe

Moshe Caspi

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

Product:
StarApp

Description:
Installer for StarApp

Version:
2013.7.4.1638

MD5:
08b4a3df83ed804a7c8e17698d0cea9b

SHA-1:
b4f9a9917061a766cb3c739d9e3ad702bcc3ec30

SHA-256:
df8a45fa6b5eb72be595f6cdb55ad0c2ef463d95b9cc19305981e771f4acaad4

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 10:47:23 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.WebPick.Installer.P
14.8.7.17

File size:
308.4 KB (315,832 bytes)

Product version:
1.0.0.1

Copyright:
Copyright © 2012 StarApp

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

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

Digital Signature
Signed by:
Moshe Caspi

Authority:
COMODO CA Limited

Valid from:
8/1/2012 9:00:00 PM

Valid to:
8/2/2013 8:59:59 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:
3/12/2013 5:51:45 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:2rwg9uEo2S1YnQmCX492DkwNP3qpYFfY9tnELlRJ2ST3jpymZjMmcGN44bKlVi66:2rFu6/eIo47tnmlRJ9yIg+6QKlVib

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...
 
[+]

Code size:
7.5 KB (7,680 bytes)

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

http://www.storebox1.info/v1160/?product_name=Uploaded&product_title=Uploaded&filesize=86723489&installer_file_name=DownloadManager&product_file_name=Plants vs. Zombies.Bilkoff.rar&product_download_url=http://fra-7m22-stor10.uploaded.net/.../1bbb3b07-d7c0-4ab9-b4ea-784745af4eed&uuid=

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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