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SumatraPDFSetup.exe

Somoto Ltd.

Somoto uses a monetization platform known as the 'Better Installer' to provide the ability of 3rd party developers to bundle various adware packages through an affiliate pay-per-install program. The application SumatraPDFSetup.exe, “Powered by BetterInstaller” by Somoto has been detected as adware by 12 anti-malware scanners. The program is a setup application that uses the Somoto BetterInstaller installer. Includes the Somoto BetterInstaller, an adware installer that will bundle offers for additional third party applications, mostly adware toolbars, with legitimate softare and may be installed without adequate user consent.
Publisher:
Somoto Ltd.  (signed and verified)

Description:
Powered by BetterInstaller

Version:
2.0.0.0

MD5:
786efce3ce3bc7595480d86a61985a38

SHA-1:
e1993ef4207566da1b2d80982bd599a0563682b4

SHA-256:
4e906a26ee1b910539a5a7a4aea32d53c700cc754ceb4daec4cccc7a2a39a5ca

Scanner detections:
12 / 68

Status:
Adware

Explanation:
Uses the Somoto 'BetterInstaller' to bundle additional (unwanted) software during install without adequate consent.

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:
4/23/2024 5:34:21 AM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
Win-Trojan/Agent.162504.B
2013.06.13

Avira AntiVirus
APPL/Somoto.fwl
7.11.84.120

Clam AntiVirus
Adware.Somoto-1
0.98/18155

Dr.Web
Adware.Somoto.8
9.0.1.0113

ESET NOD32
Win32/Somoto (variant)
8.8443

F-Prot
W32/SomotoBetterInstaller.A
v6.4.7.1.166

K7 AntiVirus
Unwanted-Program
13.170.8855

McAfee
Artemis!786EFCE3CE3B
5600.7152

Reason Heuristics
PUP.BetterInstaller.Somoto.P
14.8.7.17

Sophos
Somoto BetterInstaller
4.90

Trend Micro House Call
TROJ_GEN.F47V0528
7.2.113

VIPRE Antivirus
Trojan.Win32.Generic
18668

File size:
158.7 KB (162,504 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Somoto BetterInstaller

Language:
Language Neutral

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

Digital Signature
Signed by:
Somoto Ltd.

Authority:
COMODO CA Limited

Valid from:
9/19/2011 8:00:00 PM

Valid to:
9/19/2014 7:59:59 PM

Subject:
CN=Somoto Ltd., O=Somoto Ltd., STREET=PO Box 58096, L=Tel Aviv, S=--, PostalCode=61580, C=IL

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00841D099D16B738F34172FEEFE1D2574F

File PE Metadata
Compilation timestamp:
12/17/2010 4:14:12 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.56

CTPH (ssdeep):
3072:522ihA0m3BJf0vjyufj15Exn6LilzNYQKnveEiU1:6A0m3T0vbqn6LKzNYQKnveW

Entry address:
0x39AC

Entry point:
55, 89, E5, 57, 56, 53, 81, EC, 7C, 01, 00, 00, E8, 97, 46, 00, 00, 83, EC, 0C, 68, 01, 80, 00, 00, E8, 42, 43, 00, 00, 6A, 00, E8, AB, 46, 00, 00, 6A, 08, A3, 88, 4C, 42, 00, E8, B1, 28, 00, 00, 6A, 00, 68, 60, 01, 00, 00, A3, 38, 4D, 42, 00, 8D, 85, 90, FE, FF, FF, 50, 6A, 00, 68, A4, A2, 40, 00, E8, F0, 45, 00, 00, 83, EC, 0C, 68, A5, A2, 40, 00, 68, 68, 4D, 42, 00, E8, EF, 2A, 00, 00, 83, C4, 18, E8, FE, 42, 00, 00, 52, 52, 50, 68, 00, D0, 42, 00, E8, DA, 2A, 00, 00, 57, 6A, 00, E8, 39, 42, 00, 00, 83...
 
[+]

Entropy:
7.5846

Code size:
28.5 KB (29,184 bytes)

The file SumatraPDFSetup.exe has been seen being distributed by the following 2 URLs.

https://dur34efymch15.cloudfront.net/installers/b/6/ch/.../SumatraPDFSetup.exe

https://dur34efymch15.cloudfront.net/installers/8/5/ch/.../SumatraPDFSetup.exe

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