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0_offer_2.exe

OutBrowse LTD

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The application 0_offer_2.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. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from cdn.download2desktop.com.
Publisher:
Bing  (signed by OutBrowse LTD)

Product:
Bing

Version:
1.0

MD5:
13fd288d8efb5307ff9535fff37d1525

SHA-1:
60ed477f4a842af4154daebad6cbb98c8751423b

SHA-256:
b39bdc6cd89c796c14bac9235bd847194a8a938c966baee5a86af26c818ba879

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:
11/23/2024 10:28:04 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.Bing.Bundler (M)
15.12.17.8

File size:
170.8 KB (174,904 bytes)

Copyright:
© Bing

Trademarks:
Bing

File type:
Executable application (Win32 EXE)

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

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\temp\0_offer_2.exe

Digital Signature
Signed by:
OutBrowse LTD

Authority:
Symantec Corporation

Valid from:
2/25/2013 7:00:00 PM

Valid to:
2/26/2014 6:59:59 PM

Subject:
CN=OutBrowse LTD, O=OutBrowse LTD, L=Ramat Gan, S=Ramat Gan, C=IL, SERIALNUMBER=514686914, OID.2.5.4.15=Private Organization, OID.1.3.6.1.4.1.311.60.2.1.3=IL

Issuer:
CN=Symantec Class 3 Extended Validation Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
06C1C2AE3E180ADDA27BBF2BD8EAC0E7

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

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
3072:wgXdZt9P6D3XJc5KeeEbGemjvx3rOiHMgtEXHoL5MIW665A8Wxvf+4D:we34a5K/EdmjvZr5t+q2pd5A8WM

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:
7.5061

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file 0_offer_2.exe has been seen being distributed by the following URL.

http://cdn.download2desktop.com/Installer/.../IMBingInstaller.exe

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