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setup.exe

OutBrowse

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 OutBrowse 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 mbttd.com.
Publisher:
OutBrowse  (signed and verified)

MD5:
f6e5f6fec0d85e538276274453c657ac

SHA-1:
bd05f539791a8c99400e98cf79a5f9b49e6176a4

SHA-256:
004973646c5c69dc8445864eadc601a8846f38e5fa34f1dbb0fe4e09b9beb30e

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 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
5/10/2024 11:17:18 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.Bundler (M)
16.1.14.11

File size:
108.2 KB (110,768 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:
OutBrowse

Authority:
VeriSign, Inc.

Valid from:
10/24/2013 7:00:00 AM

Valid to:
10/25/2014 6:59:59 AM

Subject:
CN=OutBrowse, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=OutBrowse, L=Ramat Gan, S=Ramat Gan, C=IL

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:
56A6FE571611B68C9224798AD62913CA

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

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
3072:TgXdZt9P6D3XJmCV5Ky/9XO3jR0eWSzUu/0W4:Te34VVUQ9OzRgW/cZ

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:
7.6852

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://mbttd.com/engine/.../cyc3VwcGx5X3BsYXRmb3JtX2FjY291bnRfaWQ9NDA1JnN1cHBseV9wbGF0Zm9ybV9pZD00NzUmbGluZV9pdGVtX2lkPTcyMjQ?ext_click_id=2-rLgbGPWa7iU1aY_MhM1Jj906IGgtX4U9rlLqffwuxLs8MQXOWQ1_rWa-hSwlfBGqePXMi4FnpnY2ixoDQBW3wcCvozqRsbI0MSbuG_Fa8rYLPND9Sk6E1H4O_22oGG0v4tszZBgpdEneEczZ8I4cQz8cW5ewMw3mK923CScfEsB7cvkStRp-ft7bu63iH22sHrWiCx-bqstYrmcTsMYARcPayZ9ENy7Y1c-Pudcvgvt2MmdWJb-8IW_UieetgiVP6ONNSHLC_4WsMuwBb_fCbk-k5ZHCrJpxI0JXqwS_M7vqc4h0T3bNZDxyNwvV8BWYlxUu461kMZe1a47txbNTKNcZlvW7teyBweIS96k2K2YGh5hYiag_iSHJ6vws20ibBmrHNNnOaN

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