javaupdate.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 javaupdate.exe by Sanflex has been detected as adware by 10 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 the free Oracle Java Runtime but will also install additional software offers which include adware, PUPs and browser toolbars.
Publisher:
Sanflex  (signed and verified)

MD5:
51df5bf01c35402b8feb70aca8dd6c95

SHA-1:
b9b12ae361570fdcfc7996123f37ede121105094

SHA-256:
92ed7c091c1b3a8474fb869a4af04109313a30cd9d2bd23876b31311aee241ce

Scanner detections:
10 / 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:
1/14/2025 10:47:27 PM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
PUP/Win32.Downware
2014.10.12

Avira AntiVirus
ADWARE/Adware.Gen
7.11.30.172

Clam AntiVirus
Win.Adware.Downloadadmin
0.98/19501

F-Secure
Adware:W32/WebInstallBundle
11.2015-20-09_1

herdProtect (fuzzy)
2015.9.20.22

K7 AntiVirus
Unwanted-Program
13.183.13642

Malwarebytes
PUP.Optional.DownloadAdmin
v2015.09.20.10

Reason Heuristics
PUP.Tightrope.Sanflex.Bundler (M)
15.8.10.22

Sophos
Download Admin
4.98

VIPRE Antivirus
Threat.4150696
33706

File size:
75.8 MB (79,486,264 bytes)

File type:
Executable application (Win32 EXE)

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

Language:
Language Neutral

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

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
7/21/2014 8:00:00 PM

Valid to:
7/21/2017 7:59:59 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 12:29:31 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:/xpJfslZtuaVd9lpmhwQbift489IVGD4xJFl6Xqb5Kbmkg8S1:pp9sVuaVdvgVbmgGDijyikg51

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:
0.1499

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file javaupdate.exe has been seen being distributed by the following URL.

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