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downloadmanager.exe

Shlomy Golani

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 Shlomy Golani 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 Shlomy Golani)

Product:
StarApp

Description:
Installer for StarApp

Version:
2013.8.14.1907

MD5:
91d57f87c6ecec77f97f0959d877dc18

SHA-1:
6f750dcb16700ee34ab2f88b13c1898ef80c0055

SHA-256:
4e596382976d84cc56a9228c0a8b4a67e5b8cf6ee9dc9e9f74915397d1c2048c

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 9:01:05 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.WebPick.Installer (M)
16.4.12.1

File size:
312.9 KB (320,432 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:
Shlomy Golani

Authority:
COMODO CA Limited

Valid from:
1/16/2013 6:00:00 PM

Valid to:
1/17/2014 5:59:59 PM

Subject:
CN=Shlomy Golani, O=Shlomy Golani, STREET=Wingate 56, L=Beer Sheva, S=Beer Sheva, PostalCode=84428, C=IL

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

Serial number:
009FC86200EC0FF58D1C39395238030858

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:qrw16Y0JQBkQRl7174NpNUM+UHs+6NEGL1mQTDZjGa4baNS2O6vRCvphz:qrm63yRl1uqM+gs+IZjGakqSSRkphz

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:
7.9501

Developed / compiled with:
Microsoft Visual C++

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=72549796&installer_file_name=DownloadManager&product_file_name=metallica-stanger-2003.rar&product_download_url=http://fra-7m17-stor04.uploaded.net/.../7def9886-d6ed-4129-88b5-dcfc0902015d

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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