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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 dl.appsdesktop.com.
Publisher:
START NOW  (signed and verified)

MD5:
7275f90167f304977761980adf9d0464

SHA-1:
4441be0e71bdcb7360bd925f226f28637aed05e7

SHA-256:
1b46858df46d7fe7817adde64eb05cbc86cb16f4952613329e7e85def7fd0a84

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 an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
12/25/2024 6:35:06 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.STARTNOW.Bundler (M)
16.7.12.0

File size:
568.4 KB (582,024 bytes)

File type:
Executable application (Win32 EXE)

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

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

Digital Signature
Signed by:
START NOW

Authority:
thawte, Inc.

Valid from:
1/5/2015 2:00:00 AM

Valid to:
12/12/2015 1:59:59 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:
58DFC788A0519D692199C4C3E0249517

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:DLmU5Q7XTKTRxiPnaTUf0bPhNffzcMDFJ8SopZhH6pTnl2wYY:DLmCdxUnaTbr3J8vdH6pB

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:
7.9768

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://dl.appsdesktop.com/.../Get?p=3022&d=20297&l=1694&n=0&d1=365452&d2=-1&d3=-1&d4=-1&d5=-1&filename=setup&clickid=wI38OI0536OVGS7H0BHR1CUG

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