home

installation.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 installation.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.default-page.com.
Publisher:
Start Now  (signed and verified)

MD5:
c1bb727a980a03808f113b79f64b2231

SHA-1:
38d6999802e41a798de5328d48f57c8270056a2e

SHA-256:
a43b8b971d9d10d6dd76dd8918fce19e7d6e85e3948bd8741606cb4836440bb4

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:
5/11/2024 4:56:34 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse (M)
16.8.6.11

File size:
571.2 KB (584,904 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:
Start Now

Authority:
Starfield Technologies, Inc.

Valid from:
10/29/2014 6:30:53 PM

Valid to:
10/29/2015 6:30:53 PM

Subject:
CN=Start Now, O=Start Now, L=DUBLIN, C=IE

Issuer:
CN=Starfield Secure Certificate Authority - G2, OU=http://certs.starfieldtech.com/repository/, O="Starfield Technologies, Inc.", L=Scottsdale, S=Arizona, C=US

Serial number:
043DD86B3DF8A0

File PE Metadata
Compilation timestamp:
12/6/2009 12:50:52 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:gZm17LWc2RcCH1hk/U2gktME0rseMu6EenGqwPtzVankjK:gZm17SRHLk/r1iE01MFTnG7PtZE

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:
7.9769

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://get.default-page.com/.../Get?p=14291&d=1775&l=1694&n=0&d1=NUMBER&clickid=tl2CSnRfO7ityBWc8qsnNKzEF6Bq2DvyE5zRZHiO0egv8FZZfnU75OkNkprmrcDeMsv1QSFDVNwjHPwHwLbsPU5uYYA2r1yvzj9wVLbCmN3xynoer6HIEzk2He1t-1_CsAKI2EvZ5QupMaGVhc-q3-3ZiuBfg6sSygSiuFSQqwIuWQNSGHtknjHytR_wsLxBGDPsjFvDh-e6BywioEtkWao6Cy_26PLp47Pf0zwGNXJPNLQFw4ALm2WQ4rnRQsvJcsphRHkbMWFBBSNba8k8CqLp9yMhgZSjTbOCDLmRi938YuGfiI-XKEO491lmWHHu1-dfX4l2mBgYJ4qFmCRt0sCo5VaLnj32rdXuG1q-g-Y9wcZWbAB7lUb1j6GSsLpuj1NQfxoGWhGa4kq8TQXyvhfnNh4CkvMwcsYDPhlvX6X5HdwVILTUNX_g3XpEgKJLcXWiinwYLd_0Ls_HlKFpICrmsiW0EBk

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