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inrtdm620b2.rar.exe

Stas Kosmov

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 inrtdm620b2.rar.exe, “Installer for MountainApp” by Stas Kosmov has been detected as adware by 28 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:
MountainApp  (signed by Stas Kosmov)

Product:
MountainApp

Description:
Installer for MountainApp

Version:
2014.6.12.1603

MD5:
9e04858b04d24b245ca62f3cc22161c8

SHA-1:
6c500aef420b438fce6e8419e31a97269c250e1c

SHA-256:
6fc21e2d6980738a01758173993dd69eaa038351f5150686b616bd0206c75121

Scanner detections:
28 / 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:
4/23/2024 1:26:23 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Trojan.AntiFW
7.1.1

AhnLab V3 Security
PUP/Win32.TSULoader
2014.12.19

Avira AntiVirus
Adware/InstallRex.EL
7.11.196.198

avast!
Win32:InstalleRex-BX [PUP]
141214-1

AVG
Adware BundleApp.EK
2014.0.4189

Bkav FE
W32.FamVT.AntiFWK.Trojan
1.3.0.6267

Clam AntiVirus
Win.Trojan.Installerex-30
0.98/19805

Comodo Security
Application.Win32.InstalleRex.KG
20412

Dr.Web
Trojan.WebPick.2627
9.0.1.05190

ESET NOD32
Win32/InstalleRex.M potentially unwanted application
7.0.302.0

Fortinet FortiGate
Riskware/Generic.AC.4161048
12/19/2014

F-Prot
W32/InstallRex.B
4.6.5.141

G Data
Win32.Application.InstalleRex
14.12.24

K7 AntiVirus
Unwanted-Program
13.188.14380

Kaspersky
Trojan.Win32.AntiFW
15.0.0.543

Malwarebytes
PUP.Optional.InstalleRex
v2014.12.19.04

McAfee
Program.PUP-FHQ
16.8.708.2

NANO AntiVirus
Riskware.Win32.InfoLeak.cvgqot
0.28.6.64267

nProtect
Trojan/W32.AntiFW.322544
14.12.19.01

Panda Antivirus
PUP/TSUploader
14.12.19.04

Qihoo 360 Security
Malware.QVM20.Gen
1.0.0.1015

Quick Heal
Trojan.AntiFW.A5
12.14.14.00

Reason Heuristics
Adware.WebPick.Installer.O
14.12.19.3

Rising Antivirus
PE:Trojan.DL.Win32.AntiFW.a!1075355932
23.00.65.141217

Sophos
PUA 'InstallRex'
5.09

Vba32 AntiVirus
Downware.TSU
3.12.26.3

VIPRE Antivirus
Threat.4150696
35418

Zillya! Antivirus
Trojan.AntiFW.Win32.315
2.0.0.2008

File size:
315 KB (322,544 bytes)

Product version:
1.0.0.3

Copyright:
Copyright © 2014 MountainApp

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\inrtdm620b2.rar.exe

Digital Signature
Signed by:
Stas Kosmov

Authority:
COMODO CA Limited

Valid from:
9/24/2013 3:00:00 AM

Valid to:
9/25/2014 2:59:59 AM

Subject:
CN=Stas Kosmov, O=Stas Kosmov, STREET=Levitana 21, L=Kiev, S=Kiev, PostalCode=03083, C=UA

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

Serial number:
7A2834207C5588F506D3CF09661E12F2

File PE Metadata
Compilation timestamp:
3/12/2013 10:51:45 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:xr5bUzkuvcBYC47l2xhXcDp5xikxyI3rqrupq0FNhAna9iydforDwT:xrqkuveY3fxikxyI7qSpBAna4ydfEQ

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...
 
[+]

Entropy:
7.9533

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=15200868&publisher_id=520&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=45602604&external_id=0&session_id=91205208&hardware_id=106406076&installer_file_name=inrtdm620b2.rar

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