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setup.exe

yEs appS

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 yEs appS 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 get.down4desk.com.
Publisher:
JAOOL  (signed by yEs appS)

Product:
JAOOL

Version:
770.15526.857.2062

MD5:
294d03f828b8a24b6c47628c170b0731

SHA-1:
b677003579289c1dcf84e8e6079e5019c356c553

SHA-256:
e5ce754b05fd0b3d143dfa308a99b31af218105c4c79f1834c22df536ef2e5ba

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 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:
12/25/2024 5:08:04 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.yEsappS.Bundler (M)
16.3.24.5

File size:
635.6 KB (650,816 bytes)

Product version:
770.15526.857.2062

Copyright:
JAOOL

Trademarks:
JAOOL

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:
yEs appS

Authority:
thawte, Inc.

Valid from:
5/11/2015 7:00:00 AM

Valid to:
12/18/2015 6:59:59 AM

Subject:
CN=yEs appS, O=yEs appS, L=Dublin, S=Dublin, C=IE

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

Serial number:
22B6FC8A650FE1FF00806D8A48170F06

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

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:a5qmRRoIS8DeaG/3Noal8HExIhsxkDvx7nAFEj9i8dowDtNSc5jKfc8vy4h:a5qmPDer4Exiu4ZnEQtYC86

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, 1C, 45, 00, E8, F1, 2B, 00, 00, A3, 64, 1B, 45, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 37, 43, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, DB, 44, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, A0, 47, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9712

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://get.down4desk.com/.../1432650430/1432650430?67160225378YV5zLDE9bjgvMS0gXTwsNTA1LSNlNSwtMy0zJGw4Lh9obGhjb2NybFxqXjU aHZobG1fXyhGWWhaZl9yJFE4NC5bYDE3XTYvNjFfLV4uKThdYTUwLjJbWjBaNVtkNzQhYnFdb2trN2hycmsiLFkfK2UfMmRhX2snWlxcY2gxLGFqah4qYD9rW3NmXUtpWnFfa15NZXJzaytecF8fY3NuX2tkYGdZZ148QkQpVGRhXmclSWtbeWNwIWNiZF9nYGdlO3FgcW5oIFxrY2NpZ186MSorW2VcY2A3MDYrLC1eYDNhZDBcYyovLl42X2IwNTQjYltpZzwrJnhnazop

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