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downloadsetup.exe

Yakov Cohen

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 downloadsetup.exe, “Installer for StarApp” by Yakov Cohen 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 applicationsforeveryy.asia. While running, it connects to the Internet address r1.stylezip.info on port 80 using the HTTP protocol.
Publisher:
StarApp  (signed by Yakov Cohen)

Product:
StarApp

Description:
Installer for StarApp

Version:
2013.7.23.2048

MD5:
d45460ac3452d27c77d4372d87ce0ffb

SHA-1:
03335cd35aa1e2c6088e99adcbdb7758e866976a

SHA-256:
dc354b73942c55adbc0a908820ab0594176908680b1a6de10238884a99123e0d

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:
12/25/2024 12:40:13 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware (M)
17.3.16.9

File size:
293.8 KB (300,816 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\downloadsetup.exe

Digital Signature
Signed by:
Yakov Cohen

Authority:
COMODO CA Limited

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

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

Subject:
CN=Yakov Cohen, O=Yakov Cohen, STREET=Rodenski 10, L=Tel Aviv, S=Israel, PostalCode=69360, C=IL

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

Serial number:
009AF809F48BC879375BE578151D15C51C

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

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

http://applicationsforeveryy.asia/v1011?0l9GqkDDqod03kFXSps0s4zj1XeR1P4PAEAsfKROc5W5mHjyOhS6lEV0GD7a2q9JkQ4sO6xHq4PKec6yJKytslqgNfE7ekCzWCF796OP27dqlQTzKM9mStPMjJbk8gTd0iEX5IA5zEMetcluIjPvzmbh19ma7B0KaDNx4WDDnOD1x0fwy1i1DeCf8Zv0tYkTX2LVCojowFmW6rCEENpPgscn4B7rqIfzeawfDuVVfapoP9xjIGxsf47Hk2d4FTzPw8f54XdqiXOHG5ot5H6l5NJV0z7qKplSp1NfoAIXXiJuFUCrV9fSx8Xq1c2bQhSNWRRjp3vhkai8T2wrMgs6Ad9Q2I5qKC9xSEdabjYsvhzevyf8Vnah7mu78FyaIKSp10A7OwjaEjeHdAcucIokMJrQdakT89UA8YkYx94dWlp289djftoGuTDsFkOkr3FmvHMTBnwNYRdYV2hepz100opqUwecV054AYVM6PA2GeaHwUiQjqGu&subid=945514897

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=634821938&publisher_id=348&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=1904465814&external_id=0&session_id=3808931628&hardware_id=4443753566&installer_file_name=downloadsetup

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