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setup.exe

Best APP

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The application setup.exe by Best APP 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 OutBrowse Revenyou installer. The file has been seen being downloaded from dl.appsdesktop.com.
Publisher:
Best APP  (signed and verified)

MD5:
101cc2aa2aa04653c2b34efd82c74467

SHA-1:
8c66a9e5a91fde554a0884dd9b93e08e4d4afd2c

SHA-256:
0b6f83c72d8537bddb8d530750ef76006f7dd2a6c051a7af8725e705fea84127

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:
1/4/2025 10:11:20 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse (M)
17.1.6.9

File size:
569.8 KB (583,512 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
OutBrowse Revenyou (using Nullsoft Install System)

Language:
Language Neutral

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

Digital Signature
Signed by:
Best APP

Authority:
thawte, Inc.

Valid from:
1/10/2015 8:00:00 PM

Valid to:
12/17/2015 7:59:59 PM

Subject:
CN=Best APP, O=Best APP, L=Dublin, S=Dublin, C=IE

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
0CE91F0B5E46F8AC407C1289EBDCCF90

File PE Metadata
Compilation timestamp:
12/5/2009 6:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

Entry address:
0x30FA

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9767

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://dl.appsdesktop.com/.../Get?p=3022&d=20297&l=1694&n=0&d1=365452&d2=-1&d3=-1&d4=-1&d5=-1&filename=setup&clickid=w26JTGPVFGRLFBCH0KO5J5EQ

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