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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 redirect.viglink.com.
Publisher:
START now  (signed and verified)

MD5:
c4a42372258fa9307148cd80b9d494b0

SHA-1:
cc7c2009bfcda91d73ae1837c13193732ca94d0a

SHA-256:
7de8483c075b278ff435b77630525d0c2da47c49439604e0e1f4199daace7de7

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:
5/10/2024 7:25:38 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.STARTnow.Bundler (M)
15.9.11.4

File size:
582.7 KB (596,640 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:
thawte, Inc.

Valid from:
1/10/2015 4:00:00 PM

Valid to:
12/11/2015 3:59:59 PM

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:
13F235DA9F0A910A71AE486F7547520F

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:Lj7cW5Qcp7VtdYggr0ru4cqz/RFZveRvPwJJFHcoqUrdd:L8W55tdYB0jcqLRFFeRnwJJdTX

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:
7.9682

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://redirect.viglink.com/?key=d6bfe767892598b45d1bf304da9e4c5c&u=http://file.yourddl1000.info/.../Get?p=13013&d=24749&l=24044&n=0&d1=1&s=mh-cpm-ujp1&clickid=3cbe26f9-d1e2-441f-aded-7e14b3ead792

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