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installer_whatsapp_english.exe

Click To Start

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The application installer_whatsapp_english.exe by Click To Start 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 ri.search.yahoo.com.
Publisher:
Click To Start  (signed and verified)

MD5:
289a16926dae4d85de0a924a74a9457e

SHA-1:
eaf986b09547d9eb5e77c3cb5b12c8bbdc0c8efd

SHA-256:
10de67adc9c858e421c96ba48d2bc894cc9d372fd1a68755481b45381e950ac0

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 12:00:15 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.ClickToStart.Bundler (M)
16.2.16.1

File size:
564.8 KB (578,368 bytes)

File type:
Executable application (Win32 EXE)

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

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

Digital Signature
Signed by:
Click To Start

Authority:
GlobalSign nv-sa

Valid from:
12/5/2014 10:30:02 AM

Valid to:
12/6/2015 10:30:02 AM

Subject:
CN=Click To Start, O=Click To Start, L=Dublin, C=IE

Issuer:
CN=GlobalSign CodeSigning CA - G2, O=GlobalSign nv-sa, C=BE

Serial number:
1121A4ADB181C788DD5B27571502842584B8

File PE Metadata
Compilation timestamp:
12/5/2009 11:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:xlWOx8NsfGVdNXIeV4pBRlz7DdsPDCIlTEE5+++4Ow:xT8NlVHXIeV4TzmDr5++z

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

http://ri.search.yahoo.com/_ylt=A7x9Ukvm641UGGAAeDu_.wt.;_ylu=X3oDMTBzczkwa2tsBHNlYwNzcgRwb3MDMTYEY29sbwNpcjIEdnRpZAM-/RV=2/RE=1418615910/RO=10/RU=http://whatsapp.descargar.es/down.php/.../RS=5CBONSZnxkbZRHbguFVeWmGptZw-

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