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classicshell-setup.exe

Download Admin

This is the Tightrope WebInstall which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed with minimal consent. The application classicshell-setup.exe by Download Admin 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 Tightrope WebInstall installer. The file has been seen being downloaded from files4.softreviews.co and multiple other hosts.
Publisher:
Download Admin  (signed and verified)

MD5:
b79ac84009a6b8aed3c51e285dbee9ff

SHA-1:
3b5cd82dfa8f446a99fdf95a4fedbd3464cf40d2

SHA-256:
dab1ec5b7ce0e7a482ccf14eb0209a1c809209a980cfa6ce77fe1e09e56ec7fc

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
4/26/2024 2:06:48 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Installer.DownloadAdmin.S
14.10.4.23

File size:
75.9 MB (79,581,528 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Tightrope WebInstall (using Nullsoft Install System)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\classicshell-setup.exe

Digital Signature
Signed by:
Download Admin

Authority:
VeriSign, Inc.

Valid from:
3/19/2013 8:00:00 PM

Valid to:
5/29/2016 7:59:59 PM

Subject:
CN=Download Admin, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Download Admin, L=SAN FRANCISCO, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
2EEB247A8F9D63D74CE7EF9551E3D401

File PE Metadata
Compilation timestamp:
6/17/2014 11:35:36 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:axpJMyVWJ0q4kfS6wKhmcRf6vEh7+KAFgtp51idtDWEqOWtVr2/NoPH48:mpanJ0ZkKIh7mFgfidtDWEn20/No

Entry address:
0x3341

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, B0, 73, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, C0, 70, 40, 00, 53, FF, 15, 88, 72, 40, 00, 6A, 08, A3, F8, 24, 7A, 00, E8, 2C, 25, 00, 00, 53, 68, 60, 01, 00, 00, A3, 00, 24, 7A, 00, 8D, 44, 24, 38, 50, 53, 68, 43, 74, 40, 00, FF, 15, 64, 71, 40, 00, 68, 38, 74, 40, 00, 68, 00, 1C, 7A, 00, E8, 1D, 24, 00, 00, FF, 15, BC, 70, 40, 00, 50, BF, 00, 80, 7A, 00, 57, E8, 0B, 24, 00, 00...
 
[+]

Entropy:
0.1654

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file classicshell-setup.exe has been seen being distributed by the following 2 URLs.

http://files4.softreviews.co/download/.../dl?s=google_content&c=SoftRev_StartButton8_CCUS_Content&variation=secure&brand=SoftReviews.co&pid=TR&bc=1101730&country=US&cb=224474066&zTmp=1

http://files5.softreviews.co/dl?bc=1101730&source=google_content&c=SoftRev_StartButton8_CCUS_Content&geo

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