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greenerweb_setup.exe

Greener Web

This is the installer/setup program for a Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application greenerweb_setup.exe by Greener Web 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 NSIS (Nullsoft Scriptable Install System) installer. It is also typically executed from the user's temporary directory. While running, it connects to the Internet address api.yontoo.com on port 80 using the HTTP protocol.
Publisher:
Greener Web  (signed and verified)

MD5:
8a6975cbd02b537010832ce370a9aa92

SHA-1:
e52b7e57cd21ca207f48922b9dbe411a6841d962

SHA-256:
b2b6986d89320845ad62333a7e02c5b59a907c6f48c3d18de4be02529dfd2244

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
4/26/2024 11:35:39 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
16.11.14.18

File size:
2 MB (2,145,176 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\greenerweb_setup.exe

Digital Signature
Signed by:
Greener Web

Authority:
DigiCert Inc

Valid from:
6/4/2014 9:00:00 PM

Valid to:
6/10/2015 9:00:00 AM

Subject:
CN=Greener Web, O=Greener Web, L=Santa Monica, S=California, C=US

Issuer:
CN=DigiCert Assured ID Code Signing CA-1, OU=www.digicert.com, O=DigiCert Inc, C=US

Serial number:
07CF8E3C70EA58D06FE678225FF74862

File PE Metadata
Compilation timestamp:
12/5/2009 7:52:01 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
49152:x9FU81OAz0g2QuhKiCbL2gyyRHdmL/JsO05J5BbH/8RQ:x7J8Az0Rmp3wLiO05vBbUm

Entry address:
0x30CB

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, 38, 6F, 44, 00, E8, F1, 2B, 00, 00, A3, 84, 6E, 44, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 30, 9C, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 80, 2E, 44, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, F0, 46, 00, 50, 57, E8, 92, 28, 00, 00...
 
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Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to wac.edgecastcdn.net  (72.21.81.13:80)

TCP (HTTP):
Connects to service.yontoo.com  (8.25.35.148:80)

TCP (HTTP):
Connects to api.yontoo.com  (8.25.35.15:80)

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