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googlechromeextensionupdate_m6.exe

Google Chrome Extension Updater

Alactro LLC

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application googlechromeextensionupdate_m6.exe by Alactro has been detected as adware by 8 anti-malware scanners. This is a setup and installation application and has been known to bundle potentially unwanted software. The file has been seen being downloaded from dl.smstmv.com and multiple other hosts.
Publisher:
Alactro LLC  (signed and verified)

Product:
Google Chrome Extension Updater

Description:
Installer

Version:
2013.1.31.2243

MD5:
ad8612757bf79467113e9f2dd272f27c

SHA-1:
4b65b2009849cc4fa2e00fde1d198b4c66acd376

SHA-256:
5c27c21508758fb1b07c57fc163382a4dfbe82a6946f5086a400b3907f00d0e6

Scanner detections:
8 / 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:
11/14/2024 9:32:01 PM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
ADWARE/Yontoo.Gen2
7.11.87.124

Comodo Security
UnclassifiedMalware
16504

Dr.Web
Adware.Plugin.11
9.0.1.0338

ESET NOD32
Win32/Adware.Yontoo (variant)
7.8498

IKARUS anti.virus
AdWare.Yontoo
t3scan.2.0.3.0

Reason Heuristics
PUP.Installer.Alactro.EE
14.8.8.0

Trend Micro House Call
TROJ_GEN.F47V0201
7.2.338

VIPRE Antivirus
Yontoo
19088

File size:
591.7 KB (605,912 bytes)

Product version:
1.12.02

Copyright:
Copyright (c) 2013 Alactro LLC. All rights reserved.

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\googlechromeextensionupdate_m6.exe

Digital Signature
Signed by:
Alactro LLC

Authority:
GoDaddy.com, Inc.

Valid from:
5/15/2012 4:01:43 PM

Valid to:
5/26/2013 5:13:23 PM

Subject:
CN=Alactro LLC, O=Alactro LLC, L=Carlsbad, S=CA, C=US

Issuer:
SERIALNUMBER=07969287, CN=Go Daddy Secure Certification Authority, OU=http://certificates.godaddy.com/repository, O="GoDaddy.com, Inc.", L=Scottsdale, S=Arizona, C=US

Serial number:
046CAA7E02C7FB

File PE Metadata
Compilation timestamp:
8/8/2011 6:55:34 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
12288:T06OsDZc70sG9f/Z78vLxQq3hU/OMIx3kpmEn8BTZX+2+rit+Rho8ET:GYU0l8vtRUYx3Ib8BV+DWVT

Entry address:
0x1627

Entry point:
55, 8B, EC, 81, EC, 58, 0B, 00, 00, 53, 56, 33, DB, 57, 66, 89, 9D, A8, F4, FF, FF, 89, 5D, FC, FF, 15, 74, 30, 40, 00, A3, 00, 40, 40, 00, FF, 15, 70, 30, 40, 00, 89, 45, F8, 8D, 85, B8, FC, FF, FF, 50, C7, 85, B8, FC, FF, FF, 14, 01, 00, 00, FF, 15, 6C, 30, 40, 00, 85, C0, 75, 21, FF, 15, 14, 30, 40, 00, 50, 68, 30, 34, 40, 00, E8, 40, FA, FF, FF, 59, C7, 05, 04, 40, 40, 00, FF, 00, 00, 00, E9, C5, 01, 00, 00, 68, 1C, 34, 40, 00, 68, 0C, 34, 40, 00, FF, 15, 68, 30, 40, 00, 50, FF, 15, 64, 30, 40, 00, 3B...
 
[+]

Entropy:
7.9879

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

The file googlechromeextensionupdate_m6.exe has been seen being distributed by the following 3 URLs.

http://dl.smstmv.com/Update/.../?mirror=6

http://dl.dsmstc.com/Update/.../?mirror=6

http://dl.mscimg.com/Update/.../?mirror=6

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