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download.exe

Alexey Kurilenko

This is a WebPick installer that bundles (with very minimal user consent) a number of adware browser extensions using the JustPlug.it browser framework. The application download.exe, “Installer for ClearAsky Installer” by Alexey Kurilenko has been detected as adware by 23 anti-malware scanners. The program is a setup application that uses the WebPick InstalleRex (Tarma) installer. The setup program uses Web-Pick's InstalleRex download manager and installer to bundle potentially unwanted ad-supported software which includes toolbars and browser extensions through a pay-per-install monetization scheme.
Publisher:
ClearAsky Installer  (signed by Alexey Kurilenko)

Product:
ClearAsky Installer

Description:
Installer for ClearAsky Installer

Version:
2014.7.12.1336

MD5:
f73a070664c9bdb773fe77858d7fa6f6

SHA-1:
2b77b7b89a0c72e948758c48c39824cee8afe5e3

SHA-256:
777172502854ac4d7912726c36079162bf56f5b35446e718dea168e8bd8f8b9c

Scanner detections:
23 / 68

Status:
Adware

Explanation:
Uses the InstalleRex from WebPick Internet Holdings to install bundled add-ons including toolbars and other web browser extensions.

Analysis date:
4/20/2024 12:42:52 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Trojan.AntiFW
7.1.1

AhnLab V3 Security
PUP/Win32.TSULoader
2014.07.23

Avira AntiVirus
Adware/InstallRex.A.3
7.11.163.92

avast!
Win32:InstalleRex-CH [PUP]
140617-1

AVG
Generic
2015.0.3406

Bkav FE
W32.FamVT.AntiFWK.Trojan
1.3.0.4959

Clam AntiVirus
Win.Trojan.Installerex-103
0.98/19185

Comodo Security
Application.Win32.InstalleRex.KG
18934

Dr.Web
Trojan.WebPick.2735
9.0.1.05190

ESET NOD32
Win32/InstalleRex.M potentially unwanted application
7.0.302.0

G Data
Win32.Application.InstalleRex
14.7.24

IKARUS anti.virus
AdWare.SaveNet
t3scan.1.6.1.0

K7 AntiVirus
Unwanted-Program
13.181.12795

Kaspersky
Trojan.Win32.AntiFW
15.0.0.494

Malwarebytes
PUP.Optional.InstalRex
v2014.07.22.08

McAfee
PUP-FMK
5600.7062

NANO AntiVirus
Riskware.Win32.InfoLeak.cvgqot
0.28.2.60990

Panda Antivirus
PUP/TSUploader
14.07.22.08

Qihoo 360 Security
Malware.QVM20.Gen
1.0.0.1015

Quick Heal
Trojan.AntiFW.A5
7.14.14.00

Reason Heuristics
Adware.WebPick.Installer.L
14.8.1.0

Sophos
MultiPlug
4.98

VIPRE Antivirus
Threat.4150696
31208

File size:
314.2 KB (321,760 bytes)

Product version:
1.0.0.3

Copyright:
Copyright © 2014 ClearAsky Installer

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

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

Digital Signature
Signed by:
Alexey Kurilenko

Authority:
Unizeto Technologies S.A.

Valid from:
6/17/2014 9:20:17 AM

Valid to:
6/17/2015 9:20:17 AM

Subject:
E=Alexey.kurilenko@hotmail.com, CN=Alexey Kurilenko, O=Alexey Kurilenko, C=RU

Issuer:
CN=Certum Code Signing CA, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL

Serial number:
15D51642691B3EE20985639A8FE865DD

File PE Metadata
Compilation timestamp:
3/12/2013 5:51:45 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:rr5bUzkuvcBYC47l2xGnV6OjJaV490B6lKPk3JDEbk0teSVtH:rrqkuveY3RnV6c800oIpbv0SVtH

Entry address:
0x14DB

Entry point:
55, 8B, EC, 81, EC, 2C, 06, 00, 00, 53, 56, 33, DB, 57, 66, 89, 9D, DC, FB, FF, FF, 89, 5D, F4, 89, 5D, FC, FF, 15, 74, 30, 40, 00, A3, 08, 44, 40, 00, FF, 15, 70, 30, 40, 00, 8B, F8, 8D, 45, EC, 50, FF, 15, 6C, 30, 40, 00, FF, 15, 68, 30, 40, 00, 8B, F0, F7, D6, 33, F7, FF, 15, 64, 30, 40, 00, 33, F0, 8B, 45, F0, 33, 45, EC, 68, 04, 01, 00, 00, 33, F0, 8D, 85, D4, F9, FF, FF, 50, 53, FF, 15, 60, 30, 40, 00, 85, C0, 75, 41, FF, 15, 5C, 30, 40, 00, 83, F8, 78, 75, 1A, 68, A8, 32, 40, 00, E8, 43, FB, FF, FF...
 
[+]

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to r1.stylezip.info  (54.186.255.26:80)

TCP (HTTP):
Connects to c1.stylezip.info  (54.186.255.26:80)

 
http://c1.stylezip.info/?step_id=1&installer_id=8037842&publisher_id=037&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=24113526&external_id=0&session_id=48227052&hardware_id=56264894&installer_file_name=download(1)

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