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whatsapp.jar.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 whatsapp.jar.exe, “Installer for StarApp” by Stanislav Kabin 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. While running, it connects to the Internet address r1.stylezip.info on port 80 using the HTTP protocol.
Publisher:
StarApp  (signed by Stanislav Kabin)

Product:
StarApp

Description:
Installer for StarApp

Version:
2013.8.18.1859

MD5:
d743258d583371a062130a94f3882737

SHA-1:
4a7bbf68dbeb32430efc5c1517ed2a3ecf4ea8c1

SHA-256:
7da419fed11859cd234263cd9bfae1429df3a0ed07d2b7bfea8d4114357b40ea

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:
12/25/2024 12:39:28 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware (M)
16.12.10.0

File size:
294.1 KB (301,200 bytes)

Product version:
1.0.0.1

Copyright:
Copyright © 2012 StarApp

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

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

Digital Signature
Signed by:
Stanislav Kabin

Authority:
COMODO CA Limited

Valid from:
8/4/2013 7:00:00 PM

Valid to:
8/5/2014 6:59:59 PM

Subject:
CN=Stanislav Kabin, O=Stanislav Kabin, STREET="Zhilyanska, 146/100", L=Kyiv, S=Kyiv, PostalCode=01032, C=UA

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

Serial number:
00F7D23BE6C751DFF08146724FEE558CCB

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

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

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:
7.9572

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=507385256&publisher_id=073&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=1522155768&external_id=0&session_id=3044311536&hardware_id=3551696792&installer_file_name=whatsapp.jar

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