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installation.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 installation.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 rhtag.com.
Publisher:
Best App  (signed and verified)

MD5:
6b9ce87467a7d617adaf716f6db01fd7

SHA-1:
f579b336220bce0b60be92f848cf87408693efe3

SHA-256:
4213c8f8a057427aea101f1bedcae9887425e53c5754cc6a3f7502dcbc2919dc

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:
5/9/2024 5:49:10 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.BestApp.Bundler (M)
16.7.13.17

File size:
564.6 KB (578,192 bytes)

File type:
Executable application (Win32 EXE)

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

Language:
Language Neutral

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

Digital Signature
Signed by:
Best App

Authority:
GlobalSign nv-sa

Valid from:
12/5/2014 1:37:04 PM

Valid to:
12/6/2015 1:37:04 PM

Subject:
CN=Best App, O=Best App, L=Dublin, C=IE

Issuer:
CN=GlobalSign CodeSigning CA - G2, O=GlobalSign nv-sa, C=BE

Serial number:
11215B01F9256F0A054A3A5BFF4B3A8312B6

File PE Metadata
Compilation timestamp:
12/6/2009 2:50:52 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:vK7sY4KI6vLN4MKppw9Jq6yUOSsrp8AWmEtA+L2++4Om:vKoYtvL6MKDUo6vcp8Azs2+n

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:
7.9730

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://rhtag.com/adServe/adClick?ai=08zHTxdapFXuAx489KtPAN0F08qTmcv1uM5PuOLVjwrFJdAhdw2cLTchSR/TWXVWWQgd9VEKEs 8 gGwCRvHcevZtdChUYu0hVrU/0f0Xyj/TJgebFRUjlPbe21rmmtwOe6Tog9W61Sd4H2p7XgiON31o zgvc/av/UlQHhwIynOEN18qKWZmKi8GCgVQmT2g38gSKzTDqd rtt8nH/2lE0Lf8Eur8aalDROj/ 7iWToeWWqJuva3rSHJx5wyWDpbHEMkxsua0ZBelxs2XlLlifCLvVSLO 0pXgDe6E5DWof4U=&ui=1YuW55wARCZiPpweCUMluPbWwvziNp/.../jZAHJ9ceDzCSgZM8YR&src=BANNER

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