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chrome-update.exe

Sanflex

This is the Tightrope WebInstall which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed with minimal consent. The application chrome-update.exe by Sanflex has been detected as adware by 12 anti-malware scanners. The program is a setup application that uses the Tightrope WebInstall installer. The installer is marketed through download protals and search ads as Google's Chrome web browser but will also install additional software offers which include adware, PUPs and browser toolbars.
Publisher:
Sanflex  (signed and verified)

MD5:
0e5faef0ba038f64fddd4c3bcb5eb254

SHA-1:
3f53ed20eea7136072ede0662afe0107eb251b10

SHA-256:
ec64676ad44c0e5d2e2be78e40c3f7cd5edefede0389db4892840eed57b3384a

Scanner detections:
12 / 68

Status:
Adware

Description:
This 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
11/23/2024 6:04:58 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.Agent
7.1.1

AhnLab V3 Security
PUP/Win32.Downware
2014.11.12

Avira AntiVirus
ADWARE/Adware.Gen
7.11.30.172

AVG
Generic
2015.0.3293

Clam AntiVirus
Win.Adware.Downloadadmin
0.98/21411

Dr.Web
Adware.Downware.2220
9.0.1.05190

ESET NOD32
Win32/DownloadAdmin.H potentially unwanted application
7.0.302.0

F-Secure
Adware:W32/WebInstallBundle
11.2014-11-11_3

G Data
Win32.Application.DownloadAdmin
14.11.24

Malwarebytes
PUP.Optional.DownloadAdmin
v2014.11.11.05

Reason Heuristics
PUP.Tightrope.Bundler
15.5.3.0

VIPRE Antivirus
Threat.4783369
34232

File size:
822.3 KB (842,064 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Tightrope WebInstall (using Nullsoft Install System)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\chrome-update.exe

Digital Signature
Signed by:
Sanflex

Authority:
VeriSign, Inc.

Valid from:
7/21/2014 5:00:00 PM

Valid to:
7/21/2017 4:59:59 PM

Subject:
CN=Sanflex, O=Sanflex, L=SAN FRANCISCO, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
42D7699269B5BB95341F5DA022F6E57D

File PE Metadata
Compilation timestamp:
7/15/2014 9:29:31 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:oxpJfslZtuaVd9lpmhwQbift489IVGD4xJFl6Xqb5Kbmkg8Sm:sp9sVuaVdvgVbmgGDijyikg5m

Entry address:
0x3345

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, B0, 73, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, C0, 70, 40, 00, 53, FF, 15, 88, 72, 40, 00, 6A, 08, A3, B8, 3C, 42, 00, E8, 2E, 25, 00, 00, 53, 68, 60, 01, 00, 00, A3, C0, 3B, 42, 00, 8D, 44, 24, 38, 50, 53, 68, 43, 74, 40, 00, FF, 15, 64, 71, 40, 00, 68, 38, 74, 40, 00, 68, C0, 33, 42, 00, E8, 1F, 24, 00, 00, FF, 15, BC, 70, 40, 00, 50, BF, 00, 90, 42, 00, 57, E8, 0D, 24, 00, 00...
 
[+]

Entropy:
7.4900

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file chrome-update.exe has been seen being distributed by the following URL.

http://download5.file-mirror.org/.../chrome-popup.php

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