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nvvuk7+5.exe

Moshe Caspi

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 file nvvuk7+5.exe, “Installer for StarApp” by Moshe Caspi has been detected as adware by 33 anti-malware scanners. The program is a setup application that uses the WebPick InstalleRex (Tarma) installer. The setup program uses Web-Pick's InstalleRex download manager and installer to bundle potentially unwanted ad-supported software which includes toolbars and browser extensions through a pay-per-install monetization scheme.
Publisher:
StarApp  (signed by Moshe Caspi)

Product:
StarApp

Description:
Installer for StarApp

Version:
2013.5.4.1122

MD5:
8042806c3c7b25177a5994adf4d983cd

SHA-1:
93632e1d62a4d1393d315e1f34331120cb731d50

SHA-256:
2146d93753f0d356ba1331dff52790c4d6eea8e9472fa5c665b0df1dd6249cc8

Scanner detections:
33 / 68

Status:
Adware

Explanation:
Uses the InstalleRex from WebPick Internet Holdings to install bundled add-ons including toolbars and other web browser extensions.

Analysis date:
5/3/2024 12:11:10 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.Generic.570954
6486625

Agnitum Outpost
Adware.Agent
7.1.1

AhnLab V3 Security
PUP/Win32.TSULoader
2015.01.31

Avira AntiVirus
ADWARE/InstallRex.Gen
7.11.206.26

avast!
Win32:Downloader-UZF [PUP]
150129-1

AVG
Adware AdInstaller.P
2014.0.4257

Bitdefender
Adware.Generic.570954
1.0.20.150

Bkav FE
W32.FamVT.AntiFWK.Trojan
1.3.0.6379

Clam AntiVirus
Win.Adware.573054
0.98/20000

Comodo Security
Application.Win32.Agent.V
20902

Dr.Web
Adware.Downware.893, Adware.Downware.1166
9.0.1.05190

Emsisoft Anti-Malware
Adware.Generic.570954
9.0.0.4799

ESET NOD32
Win32/InstalleRex.J potentially unwanted application
7.0.302.0

Fortinet FortiGate
Riskware/InstalleRex
1/30/2015

F-Prot
W32/InstallRex.B
4.6.5.141

F-Secure
Adware.Generic.570954
5.13.68

G Data
Adware.Generic.570954
15.1.25

K7 AntiVirus
Unwanted-Program
13.193.14817

Kaspersky
not-a-virus:AdWare.Win32.Agent
15.0.0.543

Malwarebytes
PUP.Optional.Installex
v2015.01.30.05

McAfee
PUP-FHQ
5600.6869

MicroWorld eScan
Adware.Generic.570954
16.0.0.90

NANO AntiVirus
Riskware.Win32.Downware.crolol
0.30.0.65070

Norman
Adware.Generic.570954
03.12.2014 13:20:04

Panda Antivirus
PUP/TSUploader
15.01.30.05

Qihoo 360 Security
Trojan.Generic
1.0.0.1015

Quick Heal
Trojan.AntiFW.B5
1.15.14.00

Reason Heuristics
PUP.Installer.WebPick
15.1.30.17

Rising Antivirus
PE:Trojan.DL.Win32.AntiFW.a!1075355932
23.00.65.15128

Sophos
PUA 'InstallRex'
5.09

Vba32 AntiVirus
Downware.TSU
3.12.26.3

VIPRE Antivirus
Threat.4753027
36666

Zillya! Antivirus
Adware.Agent.Win32.8634
2.0.0.2049

File size:
302.1 KB (309,400 bytes)

Product version:
1.0.0.1

Copyright:
Copyright © 2012 StarApp

Original file name:
TSULoader.exe

Installer:
WebPick InstalleRex (Tarma)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\nvvuk7+5.exe.part

Digital Signature
Signed by:
Moshe Caspi

Authority:
COMODO CA Limited

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

Valid to:
8/3/2013 1:59:59 AM

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 9:51:45 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:drwzh6Y0JQBkQRl7174NpNUM+UHs+UoZIpnXGsnwxLwv85ndAemO1UadeWU8fzb:drC63yRl1uqM+gs+0WsnIEv8LAdO+W7H

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:
7.9508

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

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=17025992&publisher_id=702&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=51077976&external_id=0&session_id=102155952&hardware_id=119181944&installer_file_name=nvvuk7+5.part

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