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icreinstall_bluestackssetup.exe

Web Program App

Top Scale (New Media Holdings Ltd.)

The installer utilizes InstallCore which may bundle about 3-4 offers for various ad-supported toolbars, extensions and utilities. The application icreinstall_bluestackssetup.exe, “Web Program App Setup ” by Top Scale (New Media Holdings) 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 installCore installer. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from cdn.mediafhsignslaboratory.com. While running, it connects to the Internet address os.solvefile.com on port 80 using the HTTP protocol.
Publisher:
Installer Software   (signed by Top Scale (New Media Holdings Ltd.))

Product:
Web Program App

Description:
Web Program App Setup

Version:
5.7.3.4

MD5:
5b21907d36343ac23ea894c080799219

SHA-1:
d82bde343301758609fdc780a69e2c1a2ea9017e

SHA-256:
5c75a0ea554c461691fdac65e05539f0921f02effd0fbe81633842968ee76d48

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Utilizes the InstallCore download manager that may bundle various adware-type offers.

Description:
This is an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
11/6/2024 8:25:05 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.NewMedia.Installer.Installer (M)
16.2.14.9

File size:
798.1 KB (817,240 bytes)

Product version:
2.1.3

Copyright:
Software

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\icreinstall_bluestackssetup.exe

Digital Signature
Signed by:
Top Scale (New Media Holdings Ltd.)

Authority:
GlobalSign nv-sa

Valid from:
2/11/2015 11:01:05 AM

Valid to:
2/12/2016 11:01:05 AM

Subject:
CN=Top Scale (New Media Holdings Ltd.), O=Top Scale (New Media Holdings Ltd.), L=Tel Aviv, C=IL

Issuer:
CN=GlobalSign CodeSigning CA - G2, O=GlobalSign nv-sa, C=BE

Serial number:
1121FF0C79830A7B12BE4E698038C29DAF9A

File PE Metadata
Compilation timestamp:
6/19/1992 5:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:XEXEsk5pVQGFku31tLLhQy3HpMktV8NToM:XgWHBFkuFtBQyXp0V

Entry address:
0xA5F8

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, CE, 8A, FF, FF, E8, D5, 9C, FF, FF, E8, 64, 9F, FF, FF, E8, 07, A0, FF, FF, E8, A6, BF, FF, FF, E8, 11, E9, FF, FF, E8, 78, EA, FF, FF, 33, C0, 55, 68, C9, AC, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 92, AC, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 26, F5, FF, FF, E8, 11, F1, FF, FF, 80, 3D, 34, B2, 40, 00, 00, 74, 0C, E8, 23, F6, FF, FF, 33, C0, E8, C4, 97, FF, FF, 8D, 55, F0, 33, C0, E8, B6, C5, FF, FF, 8B, 55...
 
[+]

Entropy:
7.9214

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
39.5 KB (40,448 bytes)

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

http://cdn.mediafhsignslaboratory.com/c?x=pWLwfPpUhw/AdA1w9IhziaCi5w6XSBaLXslWq6686cg=&c=9LDPn kEr66bw99pDFIzwx4SbzUgJKsrAydKU2o1EADeesSLNuJoKMMEeLmUmzjZSFCGvqD0/nH1WIaRIYXx/wTQrBVcUxFL2EoHxuOIDOlRRvfewSutWmKgRV8TdmnKvqid7fkXFtiN8xbeyF3OcaNTjHAwuT3 6Tn3cJJSipc=&downloadAs=BlueStacksSetup.exe&fallback_url=http://allmyapps.com/binary/17529/.../direct-download?token=90c4f1d505d730885cc98010575156fddefdb54b

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to os.solvefile.com  (207.189.109.121:80)

TCP (HTTP):
Connects to cdnus.solvefile.com  (207.189.109.121:80)

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