mypdfconverterus_downloader_by_mypdfconverterus.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 mypdfconverterus_downloader_by_mypdfconverterus.exe, “Powered by BetterInstaller” by Somoto has been detected as adware by 22 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:
62237874deb3e3f75363c768f2c15279

SHA-1:
04d24eb594ee820664289e8a37d0085c52d54bea

SHA-256:
d67223e90ad85cc460c077b00aeff9ddc5cdd57aa95447bfc325a0c5bf4196d5

Scanner detections:
22 / 68

Status:
Adware

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

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:
6/20/2018 4:20:22 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.Somoto
7.1.1

AhnLab V3 Security
PUP/Win32.BetterInstaller
2014.03.07

Avira AntiVirus
APPL/Somoto.ieo
7.11.135.146

avast!
Win32:PUP-gen [PUP]
2014.9-140317

AVG
AdInstaller.Somoto
2015.0.3532

Clam AntiVirus
Adware.Somoto-1
0.98/18355

Comodo Security
Application.Win32.Somoto.A
17898

Dr.Web
Adware.Somoto.17
9.0.1.076

ESET NOD32
Win32/Somoto
8.9513

Fortinet FortiGate
Riskware/Somoto
3/17/2014

F-Prot
W32/SomotoBetterInstaller.A
v6.4.7.1.166

K7 AntiVirus
Unwanted-Program
13.176.11378

K7 Gateway Antivirus
Unwanted-Program
13.176.11378

Kaspersky
not-a-virus:Downloader.NSIS.Agent
14.0.0.4157

Malwarebytes
PUP.Optional.Somoto.A
v2014.03.17.12

NANO AntiVirus
Trojan.Win32.Agent.cruvdt
0.28.0.58101

Panda Antivirus
PUP/MultiToolbar.A
14.03.17.12

Reason Heuristics
PUP.BetterInstaller.Somoto.p
14.8.7.17

Sophos
Somoto BetterInstaller
4.98

SUPERAntiSpyware
Adware.Somoto/Variant
10722

Vba32 AntiVirus
Downloader.Agent
3.12.24.3

VIPRE Antivirus
BetterInstaller
27162

File size:
162.7 KB (166,632 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Somoto BetterInstaller

Language:
Language Neutral

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

Digital Signature
Signed by:

Authority:
COMODO CA Limited

Valid from:
9/19/2011 5:00:00 PM

Valid to:
9/19/2014 4:59:59 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 1:14:12 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.56

CTPH (ssdeep):
3072:p22ihA0m3BJf0vc5uKCNAyx7UdXts19h9xRmccbRJWLZ0Uoae:qA0m3T0vczCN37UYzh3RmJbRJWLZ0U6

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:
7.5997

Code size:
28.5 KB (29,184 bytes)

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