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setup.exe

MAXTEK LLC

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 MAXTEK 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 5ygac27nzqd382t.cuhoivno.ru.
Publisher:
MAXTEK LLC  (signed and verified)

Version:
1.0.0.0

MD5:
a75e6cd45b00e5ee97d5dc0aa7dc5367

SHA-1:
7e4a4c4d5aa31b3a676813438ec71413042c1a4e

SHA-256:
cfa42c164d3c725ab4a34a99a20b4cb7fad2341462dcb659655f45db33ced485

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 also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
1/13/2025 4:48:18 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.MAXTEK.Bundler (M)
16.3.24.18

File size:
3.1 MB (3,218,856 bytes)

Product version:
1.0.0.0

File type:
Executable application (Win32 EXE)

Bundler/Installer:
OutBrowse Revenyou

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

Digital Signature
Signed by:
MAXTEK LLC

Authority:
thawte, Inc.

Valid from:
12/29/2014 2:00:00 AM

Valid to:
12/30/2015 1:59:59 AM

Subject:
CN=MAXTEK LLC, O=MAXTEK LLC, L=Kharkiv, S=New Brunswick, C=UA

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

Serial number:
5E330605B7CB3B14509516AEA2289E49

File PE Metadata
Compilation timestamp:
6/20/1992 12:22:17 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
49152:xXl1+QdI1GHNbmOQp7tQkq0qZ9USQb5ROo2Wx+m2ON7GeAPY7J0:xXSQHHlmOQFekHSQlRvT+mtNEU0

Entry address:
0x117CD70

Entry point:
60, BE, 00, 80, 33, 01, 8D, BE, 00, 90, 0C, FF, 57, 83, CD, FF, EB, 10, 90, 90, 90, 90, 90, 90, 8A, 06, 46, 88, 07, 47, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 72, ED, B8, 01, 00, 00, 00, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, 01, DB, 73, 0B, 75, 28, 8B, 1E, 83, EE, FC, 11, DB, 72, 1F, 48, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, EB, D4, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C9, EB, 52, 31, C9, 83, E8, 03, 72, 11, C1, E0, 08, 8A, 06, 46, 83, F0, FF, 74, 75, D1, F8, 89...
 
[+]

Packer / compiler:
UPX 2.90LZMA

Code size:
2.3 MB (2,383,872 bytes)

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

http://5ygac27nzqd382t.cuhoivno.ru/Z2Z2ZmlpaHdqeGljdXdzem5ydnhwa2tyeWhvbmRleHFqa2d7InZlciI6IjEiLCJzaWQiOiI4NTUiLCJ1cmwiOiJodHRwOlwvXC90b3JyZW50b2ZmLnJ1XC9zZXR1cFwvU2V0dXAuemlwIiwibmFtZSI6IlNldHVwLmV4ZSIsInR5cGUiOiJkaXNrIiwic2l6ZSI6MTI1ODI5MTJ9

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