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installation.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 installation.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 file.yourddl1000.info.
Publisher:
MAXTEK LLC  (signed and verified)

MD5:
bc7b63056b9ad042cc2d72071b97b6ce

SHA-1:
d588a63f610b23222bb2ee24a5a5fa01a405fdb4

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:
11/4/2024 5:04:05 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse (M)
16.8.3.20

File size:
581.1 KB (595,048 bytes)

File type:
Executable application (Win32 EXE)

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

Language:
Language Neutral

Common path:
C:\Documents and Settings\{user}\My documents\downloads\installation.exe

Digital Signature
Signed by:
MAXTEK LLC

Authority:
thawte, Inc.

Valid from:
12/21/2014 4:00:00 PM

Valid to:
12/22/2015 3:59:59 PM

Subject:
CN=MAXTEK LLC, O=MAXTEK LLC, L=Kiev, S=Kiev, C=UA

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

Serial number:
058B5B9DB91E1063D1BF9AB3385D4B88

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:b/leH77mXp1D+EYiVbgYrbKXjM9QXbWlEk/NxiwB4dbihMqns3N0N:bdk74p5+EbVCziEk/n7Wdzs

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:
7.9745

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://file.yourddl1000.info/.../Get?p=13013&d=24699&l=24043&n=0&d1=1&s=mbs-f40&clickid=bb1dd8b4-9ca9-4714-8301-0c255262b64b

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