download.exe

Appit

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 Appit” by Alexey Kurilenko has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the WebPick InstalleRex (Tarma) installer. The file has been seen being downloaded from superfilesdatak.asia. While running, it connects to the Internet address r1.stylezip.info on port 80 using the HTTP protocol.
Publisher:
GreatSoft  (signed by Alexey Kurilenko)

Product:
Appit

Description:
Installer for Appit

Version:
2014.2.18.1622

MD5:
f9c30abd3d60b903ca453cf934128687

SHA-1:
dfd72a4bc01e8f9017584c5da8e3ea99d7c6ecba

SHA-256:
1a2cab4c2d625702ccf4b74a85aca919709056eb773bc10fb4d6bdfff16af2e4

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Uses Web-Pick's 'File Product', an Installer which wraps various products and downloads and installs it silently through the process, hosted on TusFiles.

Analysis date:
4/18/2024 4:18:36 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.WebPick.Installer (M)
16.7.7.22

File size:
325.1 KB (332,912 bytes)

Product version:
1.0.0.2

Copyright:
Copyright © 2014 GreatSoft

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

Language:
Language Neutral

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

Digital Signature
Authority:
COMODO CA Limited

Valid from:
7/19/2013 3:00:00 AM

Valid to:
7/20/2014 2:59:59 AM

Subject:
CN=Alexey Kurilenko, O=Alexey Kurilenko, STREET="Str. Sums'ka, 28", L=Kharkiv, S=Kharkivska, PostalCode=61057, C=UA

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

Serial number:
00EC26735E2AD490D07645FA7A606FA1EE

File PE Metadata
Compilation timestamp:
3/12/2013 11:51:45 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:ur1Bh9uEo2S1YnQmCX492DkwNP3qpYFDcYgQUskKWeFCEQOiCYOqmO5oT:ur1B3u6/eIo4ArVUBQCCYOqmO5oT

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:
7.8781

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

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

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=247249716&publisher_id=472&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=741749148&external_id=0&session_id=1483498296&hardware_id=1730748012&installer_file_name=download

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