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TSULoader.exe

Stanislav Kabin

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 TSULoader.exe, “Installer for PlutoApp” by Stanislav Kabin has been detected as adware by 22 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:
PlutoApp  (signed by Stanislav Kabin)

Product:
PlutoApp

Description:
Installer for PlutoApp

Version:
2014.8.11.1240

MD5:
a34a779753b754bf20821871ee57379b

SHA-1:
8966ec62cb00aea7f9ea84cae5111e07a657fdbb

SHA-256:
b4db4cedeca1f0e3e612f94b3b1ff9231ae4456992db35a3b96f7b259df2f77d

Scanner detections:
22 / 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:
11/5/2024 11:43:56 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Kazy.402751
904

Avira AntiVirus
Adware/MultiPlug.aoa
7.11.167.116

avast!
Win32:InstalleRex-CK [PUP]
2014.9-140814

AVG
Generic
2015.0.3382

Bitdefender
Gen:Variant.Kazy.402751
1.0.20.1130

Comodo Security
Application.Win32.InstallRex.IJ
19197

Dr.Web
Threat.Undefined
9.0.1.0226

Emsisoft Anti-Malware
Gen:Variant.Kazy.402751
8.14.08.14.11

ESET NOD32
Win32/InstalleRex.M potentially unwanted application
8.7.0.302.0

F-Prot
W32/Trojan2.OGRP
v6.4.7.1.166

F-Secure
Gen:Variant.Kazy.402751
11.2014-14-08_5

G Data
Gen:Variant.Kazy.402751
14.8.24

IKARUS anti.virus
PUA.InstallRex
t3scan.1.7.5.0

Kaspersky
not-a-virus:AdWare.Win32.MultiPlug
14.0.0.3408

Malwarebytes
PUP.Optional.Installrex
v2014.08.14.02

MicroWorld eScan
Gen:Variant.Kazy.402751
15.0.0.678

NANO AntiVirus
Riskware.Win32.InfoLeak.cvgqot
0.28.2.61519

Panda Antivirus
PUP/TSUploader
14.08.14.02

Quick Heal
Trojan.AntiFW.A5
8.14.14.00

Reason Heuristics
Adware.WebPick.Installer.J
14.8.14.9

Vba32 AntiVirus
Downware.TSU
3.12.26.3

VIPRE Antivirus
Threat.4753027
32210

File size:
677.7 KB (693,960 bytes)

Product version:
1.0.0.3

Copyright:
Copyright © 2014 PlutoApp

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

Language:
Language Neutral

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

Digital Signature
Signed by:
Stanislav Kabin

Authority:
Unizeto Technologies S.A.

Valid from:
6/23/2014 4:28:15 AM

Valid to:
6/23/2015 4:28:15 AM

Subject:
E=Stanislav.Kabin@hotmail.com, CN=Stanislav Kabin, O=Stanislav Kabin, C=RU

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

Serial number:
3469022839E88D596EA6FE14C990AF76

File PE Metadata
Compilation timestamp:
3/12/2013 1:51:45 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
12288:Srzv+rGvkuveY32DEpByVXv2d5DxxrPOb:isuXGXOxxm

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:
6.5501

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

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

http://firstappallproff.com/download/v1541?installer_file_name=Legendas232&filesize=2MB&product_name=Legendas 2.32&product_title=Legendas 2.32&product_file_name=Legendas232.exe&locale=br&reffer=http://.../obrigado232&uuid=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

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=8943662&publisher_id=943&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=26830986&external_id=0&session_id=53661972&hardware_id=62605634&installer_file_name=TSULoader

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