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bigfile.dat.exe

Sergey Petrov

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 bigfile.dat.exe, “Installer for GreenApp” by Sergey Petrov has been detected as adware by 17 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:
GreenApp  (signed by Sergey Petrov)

Product:
GreenApp

Description:
Installer for GreenApp

Version:
2014.3.30.1503

MD5:
9c1def01bd5db0956f70118cabe9054e

SHA-1:
7e80387e54ece36a2eb0d0da7d3753448d8cfb31

SHA-256:
da3777b629fce0e43963e86e269b6ed83b38eba9dfd9668aaff52ba69077dc0c

Scanner detections:
17 / 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:
5/3/2024 3:38:06 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Trojan.AntiFW
7.1.1

Avira AntiVirus
TR/Kazy.324119.11
7.11.140.212

avast!
Win32:InstalleRex-BI [PUP]
2014.9-140402

AVG
MalSign.Generic
2015.0.3516

Comodo Security
Application.Win32.InstalleRex.KG
18036

Dr.Web
Trojan.WebPick.29
9.0.1.092

ESET NOD32
Win32/InstalleRex (variant)
8.9627

G Data
Win32.Application.InstalleRex
14.4.24

Kaspersky
Trojan.Win32.AntiFW
14.0.0.4077

Malwarebytes
PUP.Optional.Installrex
v2014.04.02.02

NANO AntiVirus
Trojan.Win32.AntiFW.cvgqot
0.28.0.58873

Qihoo 360 Security
Malware.QVM20.Gen
1.0.0.1015

Reason Heuristics
PUP.Installer.SergeyPetrov.K
14.4.2.10

Rising Antivirus
PE:PUF.InstallRex!1.9E4C
23.00.65.14331

Sophos
InstallRex
4.98

Vba32 AntiVirus
Downloader.AdLoad
3.12.24.3

VIPRE Antivirus
Installerex/WebPick
27952

File size:
316.2 KB (323,808 bytes)

Product version:
1.0.0.3

Copyright:
Copyright © 2014 GreenApp

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

Language:
Language Neutral

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

Digital Signature
Signed by:
Sergey Petrov

Authority:
COMODO CA Limited

Valid from:
8/20/2013 5:00:00 PM

Valid to:
8/21/2014 4:59:59 PM

Subject:
CN=Sergey Petrov, O=Sergey Petrov, STREET=Gaydara 13, L=Kyev, S=Kyev, PostalCode=01033, C=UA

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

Serial number:
0AD084E865D27CD546D21DB6EDF89D48

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):
6144:Tr/bUzkuvcBYC47l2xij4YTfpczmap8spMPed0VdtM9BdjhYg:Tr0kuveY3cY1cia66MGd0Vs9BdN3

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:
7.9499

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

The file bigfile.dat.exe has been seen being distributed by the following 4 URLs.

http://best-new-zip-my.info/download/v34?installer_file_name=bigfile.dat&product_name=bigfile.dat&product_download_url=https://fs09n4.sendspace.com/dllp/0a960af23010ad7bc899885ea973bb89/533c145f/000000/22z2kc/bigfile.dat&reffer=http://www.sendspace.com/.../22z2kc&product_file_name=error.txt&filesize=&uuid=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

http://best-new-zip-my.info/v34?installer_file_name=bigfile.dat&product_name=bigfile.dat&product_download_url=https://fs09n4.sendspace.com/dllp/0a960af23010ad7bc899885ea973bb89/533c145f/000000/22z2kc/bigfile.dat&reffer=http://www.sendspace.com/.../22z2kc

http://www.sendspace.com/quickdownload.html?lc=22z2kc

http://www.sendspace.com/.../22z2kc

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=3582128&publisher_id=582&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=10746384&external_id=0&session_id=21492768&hardware_id=25074896&installer_file_name=bigfile.dat

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