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installation.exe

Otopia Soft

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 Otopia Soft 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:
Otopia Soft  (signed and verified)

MD5:
49b87115193ffdc8c29f50b1beb90c20

SHA-1:
095c2e11541012b53da5497b85c2aaf541a85fb0

SHA-256:
95e3ad28670b8f9cf6d4fea660311c0abbb6a565b96a5dcd36809b3935841b23

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:
11/5/2024 8:08:25 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.OtopiaSo.Bundler (M)
16.7.7.11

File size:
573.7 KB (587,464 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:
Otopia Soft

Authority:
thawte, Inc.

Valid from:
12/16/2014 4:00:00 PM

Valid to:
12/17/2015 3:59:59 PM

Subject:
CN=Otopia Soft, O=Otopia Soft, L=Dublin, S=Dublin, C=IE

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

Serial number:
13322CE09A267D0E43AD6494E31B8A89

File PE Metadata
Compilation timestamp:
12/5/2009 2:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:7hoGrzFLTcLNmQYb72ZuEXQk94UbQhvCvLti5YhMnpNNf9N:768xhQYbCbX79z64tiCu/ff

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:
7.9738

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=08zHTxdapFWuFuXbLMU3llazOitvZeBkURxMTYWj QLOI53MaDHNd3VKvx2qp2TAE15yz728krUK oUv4wzjA1YFd2rNK35DNgmGw kTpOBIpdY e/iTnmmZWku5Tc4mUcunUQFtYFS0VD0vp1Q9/ca6c /Dcv/.../j oMNgfpKMV3XJp0uc727iYxkhF8sdCfxm9RhtIZZJCxAdeOqU=&src=BANNER

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