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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 clkoffers.com.
Publisher:
StART NOW  (signed and verified)

MD5:
f9958cbd59033df40efc0e269a786591

SHA-1:
b113a62731c7cc4ed17eec715adbd92b4d95a627

SHA-256:
1e9a6d9a2bc79e2f0eb85dc374a99bd1810bb83bba6aa823186bb06039b71825

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:
1/11/2025 9:31:08 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.StARTNOW.Bundler (M)
16.7.14.18

File size:
596.4 KB (610,696 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:
2/4/2015 10:00:00 PM

Valid to:
12/11/2015 9:59:59 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:
49D186F5D4CD2EA57A61CBF406813874

File PE Metadata
Compilation timestamp:
12/5/2009 8:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:rLCctXpKAHP+dFbHdlt2q1jx8WZp9vF48MiGWphBmoUElP+cx:rLC8BAVdlttxLZp9vFPG0J+o

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...
 
[+]

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://clkoffers.com/.../sa?cid=SUPER-CRSRDR-200158003118000000&pid=11021&q=Novo MSN: Not?cias, esportes, estilo de vida, tv, previs?o do tempo, entretenim

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