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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 15 anti-malware scanners. The program is a setup application that uses the Tightrope WebInstall installer. With this installer, users are expecting to download Google's Chrome web browser but before that occurs they may be presented with additional offers, mostly potentially unwanted software or adware.
Publisher:
Sanflex  (signed and verified)

MD5:
c91d7e25532c8e75a5942cd433197169

SHA-1:
7c855d68779339691499fa2a0d206211253910d3

SHA-256:
7743d144b18e5789ec962c6cb63bf5b96358900bec34612e160b2912f8d241f9

Scanner detections:
15 / 68

Status:
Adware

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:
2/24/2025 9:03:16 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.Agent
7.1.1

AhnLab V3 Security
PUP/Win32.Downware
2014.11.21

Avira AntiVirus
ADWARE/Adware.Gen
7.11.30.172

AVG
Generic
2015.0.3284

Clam AntiVirus
Win.Adware.Downloadadmin
0.98/19666

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
11.2014-20-11_5

G Data
Win32.Application.DownloadAdmin
14.11.24

IKARUS anti.virus
Trojan.Dropper
t3scan.1.8.3.0

K7 AntiVirus
Unwanted-Program
13.185.14085

Malwarebytes
PUP.Optional.DownloadAdmin
v2014.11.20.08

NANO AntiVirus
Riskware.Win32.Downware.djahkt
0.28.6.63474

Reason Heuristics
PUP.Tightrope.Bundler
15.5.3.0

VIPRE Antivirus
Threat.4150696
34948

File size:
823.3 KB (843,032 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:TxpJfslZtuaVd9lpmhwQbift489IVGD4xJFl6Xqb5Kbmkg8SUw:tp9sVuaVdvgVbmgGDijyikg59

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:
7.4908

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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