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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 dl.downloaddesktop2.com.
Publisher:
CPMES  (signed by yES APPs)

Product:
CPMES

Version:
2441.15531.858.9942

MD5:
a806a5cd5d1a7d8cfee22c5f202e2be7

SHA-1:
b9b8f488b2b89c35ee18a8bbbaad37ec0f9d2993

SHA-256:
bc507262b53c2988c10cbbe465135f84bd60a3b527cc49d5b9d4a40657e9ac3a

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:
11/23/2024 6:06:47 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.yESAPPs.Bundler (M)
16.4.22.3

File size:
745.8 KB (763,672 bytes)

Product version:
2441.15531.858.9942

Copyright:
CPMES

Trademarks:
CPMES

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:
5/28/2015 1:00:00 AM

Valid to:
12/17/2015 11:59:59 PM

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:
265DC0408CF3B52DFB1D83A636C6D864

File PE Metadata
Compilation timestamp:
12/5/2009 10:52:12 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:/BxXOCMULbm6hQbS822oiiI8JID6sjLqnBlhxssCUExCkYkBSmMCKCTrkRG4r/Ox:/BJOjUHm6hm9snhQTYkBTM7CERG4B86

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:
7.9838

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.downloaddesktop2.com/.../1433086077/1433086077?37950619961ZF5rLTE5bzQoLTMvMR1fPSw3KCotJWk2KTIzMTMdZTcwI2lpamRvYmtlW2xiNkpgdG9vHVxyZHJrYzhobnNnHC1gIitdIDJgZGUkbW5jbWopY2lsHClgZW9eXHJhbGQcKWBFZmVcWkRpdmVjaWBhXmkpZXJkHVtzbV5mYF5uW2xcNEBoaV4cLTA bm5lZm5eXVxtJmBoY1xoYGpeNE5lbnRnHWNibGc0MSZ0aGc0Kg

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