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silverlight setup.exe

Zulu Soft SRL

This the Soft32 ad-supported download manager that bundles additional PUP offers. "During the download process we may show commercial offers, such as a toolbar or other browser add-ons. The download manager is in no way affiliated or endorsed by the author of this product." The application silverlight setup.exe by Zulu Soft SRL has been detected as adware by 9 anti-malware scanners. The program is a setup application that uses the Soft32 Download Manager installer. The file has been seen being downloaded from silverlight.soft32.com.
Publisher:
Zulu Soft SRL  (signed and verified)

MD5:
dbfb8da83ad582b91edb7dabb18e5886

SHA-1:
e2f99725d67a8032036f17c7a20d9017a8e15517

SHA-256:
da2599dd808103770ccaac959d3c312073b7117cef5e9de3b7fc7479375294c0

Scanner detections:
9 / 68

Status:
Adware

Explanation:
The setup file is part of the Soft32.com download and install manager. It is an ad-supported installer and attempts to get the user to install various adware toolbars, browser add-ons, game applications or other potentially unwanted programs. If a sponsored software offer such as a toolbar is installed it might change the User’s home page, default search settings and 404 traffic. Note, the software installed by Soft32 is probably safe, just the installer is unwanted.

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:
4/27/2024 3:38:16 AM UTC  (today)

Scan engine
Detection
Engine version

Clam AntiVirus
Win.Adware.Outbrowse-2
0.98/19185

Dr.Web
Adware.Downware.2152
9.0.1.0258

ESET NOD32
MSIL/Soft32Downloader.C potentially unwanted application
8.7.0.302.0

herdProtect (fuzzy)
variant of unlocker setup.exe (Adware)
2014.9.29.10

Malwarebytes
PUP.Optional.Soft32.A
v2014.09.15.09

McAfee
SoftDropper
5600.7007

NANO AntiVirus
Riskware.Nsis.Downloader.cvxhzw
0.28.2.60990

Reason Heuristics
PUP.Installer.ZuluSoftSRL.R
14.8.7.1

VIPRE Antivirus
Threat.4783370
31208

File size:
742.9 KB (760,720 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Soft32 Download Manager (using Nullsoft Install System)

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

Digital Signature
Signed by:
Zulu Soft SRL

Authority:
Symantec Corporation

Valid from:
6/3/2013 7:00:00 PM

Valid to:
6/17/2016 6:59:59 PM

Subject:
CN=Zulu Soft SRL, O=Zulu Soft SRL, L=Sibiu, S=Sibiu, C=RO, SERIALNUMBER=J32/987/2007, OID.2.5.4.15=Private Organization, OID.1.3.6.1.4.1.311.60.2.1.3=RO

Issuer:
CN=Symantec Class 3 Extended Validation Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
22D4D7E5042BE9C2999CB05C4CA2BB4F

File PE Metadata
Compilation timestamp:
12/5/2009 4:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:jA2qogAPiqhb4m0FUpapbOZ1Wg0tewuZSEhR7HO+NSp3sbqliSKmfU:82p1xYFUpapbOZ1twuZnrOfSqsSKm

Entry address:
0x30FA

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, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9549

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://silverlight.soft32.com/get/file/id/.../?lp=adwords&kw=Silverlight plugin for chrome&mt=b&ad=25003375998&pl=&ds=s&gclid=Cj0KEQjw6J2eBRCpqaW0857k9p4BEiQAWarYbLUqytY58YeAhxS301IYTg54g6KPKGxlzVhiVvdI3vkaAsZY8P8HAQ&uid=14056179815b0ba98eba300b7645a0c4d2e4fb96fb

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