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nero7.rar.exe

Nadav Kashtan

This program bundles adware during the download and install process using the InstaleRex pay-per-install app monetizer. The application nero7.rar.exe, “Installer for StarApp” by Nadav Kashtan 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 downloads.ziddu.com. While running, it connects to the Internet address r1.stylezip.info on port 80 using the HTTP protocol.
Publisher:
StarApp  (signed by Nadav Kashtan)

Product:
StarApp

Description:
Installer for StarApp

Version:
2013.8.6.1937

MD5:
a643ce10d7bbe04774a8db3c9a29520c

SHA-1:
bde19a753b1ff55ed593e279eb64d63106aea756

SHA-256:
c176746d1ef143ec181dc6188d7447e2e7bff6eaf91d40d2ec46f135fb153103

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:
4/20/2024 2:17:18 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.WebPick.Installer (M)
16.2.12.9

File size:
312.9 KB (320,440 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)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\nero7.rar.exe

Digital Signature
Signed by:
Nadav Kashtan

Authority:
COMODO CA Limited

Valid from:
11/5/2012 7:00:00 AM

Valid to:
11/6/2013 6:59:59 AM

Subject:
CN=Nadav Kashtan, O=Nadav Kashtan, STREET=Bizron 38, L=Tel Aviv, S=center, PostalCode=67894, C=IL

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

Serial number:
00F861471B38887DE98076AFF491B1B1B3

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

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:urwV6Y0JQBkQRl7174NpNUM+UHs+j9HjKD/DTMsBsJZXrlPwAtBcdt1i:ur+63yRl1uqM+gs+JHjKHTMsBwrydy

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:
7.9527

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

The file nero7.rar.exe has been seen being distributed by the following URL.

http://downloads.ziddu.com/downloadfiles/.../Nero7.rar

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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