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update_google_chrome.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 update_google_chrome.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 installer is marketed through download protals and search ads as Google's Chrome web browser but will also install additional software offers which include adware, PUPs and browser toolbars.
Publisher:
Otopia SOFT  (signed and verified)

MD5:
f1e2f33ce5ca6d04c251e49d244679b4

SHA-1:
f12f4f2561c422c712324e1d78fe99dbf30304b1

SHA-256:
88829ef17ff5c4e36435bc39fc48b7b85af1f03f57c7e8dd98cc00e6306321b9

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:
12/28/2024 10:00:55 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.OtopiaSO.Bundler (M)
16.4.26.10

File size:
572.4 KB (586,184 bytes)

File type:
Executable application (Win32 EXE)

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

Language:
Language Neutral

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

Digital Signature
Signed by:
Otopia SOFT

Authority:
thawte, Inc.

Valid from:
1/22/2015 1:00:00 AM

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

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:
6713575F4185F7E18FB9C66A2D66B488

File PE Metadata
Compilation timestamp:
12/5/2009 11:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:aaBqS53lofze7LC2jBXjD0jCY0C6Hi9ZqBKrgGdHf6r:a8ofz2CAjen0PAZfJfq

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...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://www.freesoftwaren.com/.../download.php?id=54c25ba29ea3a&i=40374&d=3

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