aristostv_publicrelease_2_downloader-74wzfvzt.exe

Somoto Limited

This is the Somoto BetterInstaller, an installer that bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed without consent. The application aristostv_publicrelease_2_downloader-74wzfvzt.exe by Somoto Limited has been detected as adware by 23 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 Limited  (signed and verified)

MD5:
7b66e7290aa7f7b3226bc7c50b292a9a

SHA-1:
a238e4118891525fe41abcc22d95de3fc761e96a

SHA-256:
88e9445e14bcaa9d74e0d5204f23634eb34c8a98ad6d237a50dc75f066bf7c8b

Scanner detections:
23 / 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:
11/19/2017 8:02:10 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Application.Bundler.Somoto.J
953

AVG
Somoto
2015.0.3431

Bitdefender
Application.Bundler.Somoto.J
1.0.20.885

Clam AntiVirus
Win.Adware.Somoto
0.98/21411

Dr.Web
Trojan.Packed.27732
9.0.1.0177

Emsisoft Anti-Malware
Application.Bundler.Somoto
8.14.06.26.04

ESET NOD32
Win32/Somoto
8.9996

F-Secure
Application.Bundler.Somoto.J
11.2014-26-06_5

K7 AntiVirus
Unwanted-Program
13.180.12512

K7 Gateway Antivirus
Unwanted-Program
13.180.12512

Kaspersky
not-a-virus:AdWare.Win32.Agent
14.0.0.3652

Malwarebytes
PUP.Optional.Somoto.A
v2014.06.26.04

McAfee
Artemis!7B66E7290AA7
5600.7087

McAfee Web Gateway
Artemis!7B66E7290AA7
7.7087

MicroWorld eScan
Application.Bundler.Somoto.J
15.0.0.531

NANO AntiVirus
Riskware.Nsis.Adware.dbnhrj
0.28.0.60475

Panda Antivirus
Trj/Chgt.A
14.06.26.04

Qihoo 360 Security
HEUR/Malware.QVM06.Gen
1.0.0.1015

Reason Heuristics
PUP.SomotoLimited.n
14.7.3.1

Sophos
Somoto BetterInstaller
4.98

Trend Micro House Call
Suspicious_GEN.F47V0615
7.2.177

Vba32 AntiVirus
AdWare.Agent
3.12.26.3

VIPRE Antivirus
Trojan.Win32.Generic
30634

File size:
220 KB (225,232 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Somoto BetterInstaller

Common path:
C:\users\{user}\downloads\aristostv_publicrelease_2_downloader-74wzfvzt.exe

Digital Signature
Signed by:

Authority:
DigiCert Inc

Valid from:
11/11/2013 2:00:00 AM

Valid to:
11/16/2015 2:00:00 PM

Subject:
CN=Somoto Limited, O=Somoto Limited, L=Tel Aviv, S=Tel Aviv, C=IL

Issuer:
CN=DigiCert Assured ID Code Signing CA-1, OU=www.digicert.com, O=DigiCert Inc, C=US

Serial number:
05805984E5838EE41CFD82C4057379F9

File PE Metadata
Compilation timestamp:
12/17/2010 11:14:12 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.56

CTPH (ssdeep):
6144:uA0m3D0odz5GnHWrELPT5zkdc0ojMmXf8:uA0iD0o3G2Q7VkW0oAm8

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:
7.7349  (probably packed)

Code size:
28.5 KB (29,184 bytes)

The file aristostv_publicrelease_2_downloader-74wzfvzt.exe has been seen being distributed by the following URL.