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installation.exe

OUTBROWSE

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 OUTBROWSE 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 secure-ams.adnxs.com.
Publisher:
OUTBROWSE  (signed and verified)

MD5:
5f221d9c4dc72779bf9911e32edfdfd6

SHA-1:
3d417bfb45a7131638a5d5fa5798e44ebbb19764

SHA-256:
b4162fd8ab68f391eb7038592300293e856854a381b68a62f5d99f1d2ebfdbea

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:
12/26/2024 4:01:45 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.Bundler (M)
16.6.5.18

File size:
564.9 KB (578,496 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:
OUTBROWSE

Authority:
COMODO CA Limited

Valid from:
4/7/2014 1:00:00 AM

Valid to:
4/8/2015 12:59:59 AM

Subject:
CN=OUTBROWSE, O=OUTBROWSE, STREET=Bialik Number: 143, L=Ramat Gan, S=Israel, PostalCode=5252337, C=IL

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00A5F03C3A375C11FD6C1C160EE8BFF923

File PE Metadata
Compilation timestamp:
12/5/2009 10:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:v9erwZ6oeqD7zh9C0aisYJpqIxQ3qGdNLB9ozGxfynv:vUrwZ6ozDXrvrJZQ3BKax+

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 installation.exe has been seen being distributed by the following URL.

https://secure-ams.adnxs.com/click?deYU1tM3uz_HGQ9x0P-2PwAAAAAAAPA_xxkPcdD_tj915hTW0ze7P2ZfD5_DuJtrxf3dlFraNFitTv9TAAAAAMwmNAA_AQAA_AcAAAIAAAAx7ekA3NUGAAAAAQBVU0QAVVNEACwB-gDR-wAASLgAAgUAAQIAAJAAzSlQ6AAAAAA./cnd=!SAYEOwjHtp0CELHapwcY3KsbIAA./referrer=www.tlscontact.com/clickenc=http://get.file2desktop.com/.../Get?p=8723&d=12098&l=11517&n=1&productname=GoogleChrome&d1=103&d2=3417804&clickid=UAT_ams1CMX796apy7aaWBACGOa-vfi5mO7NayINOTAuMjEzLjI0My41NygBMK2d_Z8F

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