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setup.exe

staRT noW

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 staRT noW 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 get.down4desk.com.
Publisher:
CDXTD  (signed by staRT noW)

Product:
CDXTD

Version:
4418.15526.796.105

MD5:
4d28484b4a572bfecdbb4e71c72e9d64

SHA-1:
49336d34ee8a6fd15ba7ddf66bd8eaf5311837bd

SHA-256:
28257d267abde1ffa8eb326c91b3a8b51de7d217dd1ae1b62c0a7cf7c58f2020

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:
12/25/2024 5:04:13 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.staRTnoW.Bundler (M)
16.4.30.14

File size:
635.4 KB (650,696 bytes)

Product version:
4418.15526.796.105

Copyright:
CDXTD

Trademarks:
CDXTD

File type:
Executable application (Win32 EXE)

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

Language:
Language Neutral

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

Digital Signature
Signed by:
staRT noW

Authority:
thawte, Inc.

Valid from:
5/26/2015 2:00:00 AM

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

Subject:
CN=staRT noW, O=staRT noW, L=Dublin, S=Dublin, C=IE

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

Serial number:
7366E562FB25003E03E4582E9B8F157F

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

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:c96d/gTrwg7x3bWOMueyLd2feq8/EL7klqigJlXTxhONur4DPdxbP/5Yfc8vy4hw:c+OxStueyLcfIEslqigraNuryfbPv86P

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, 1C, 45, 00, E8, F1, 2B, 00, 00, A3, 64, 1B, 45, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 37, 43, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, DB, 44, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, A0, 47, 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 setup.exe has been seen being distributed by the following URL.

http://get.down4desk.com/.../1432665122/1432665122?36542216273ZF9vLTM9bzcwLDAjXjguMzUvKyRlOi4wNDAkbDwrJF0uOh8vLCMyLz1KQkJLTihAQCtIPiMtLSIuKyJhamhdaWJhOiosLi81NDAxKy0vLTAsNTMvMjcyNiNjXmtsOzAgeGJtOio

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