office_mobile_for_office_365_apk_15.0.1924.2000_patched_full_android.zip.exe

Artur Kozak

The installer which is distributed via file sharing sites such as TusFiles uses the 'download manager' which wraps the original file in a adware filled bundle. The application office_mobile_for_office_365_apk_15.0.1924.2000_patched_full_android.zip.exe, “Installer for WinterSoft” by Artur Kozak 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 tusfiles.net. While running, it connects to the Internet address r1.getapplicationmy.info on port 80 using the HTTP protocol.
Publisher:
WinterSoft  (signed by Artur Kozak)

Product:
WinterSoft

Description:
Installer for WinterSoft

Version:
2013.10.21.1806

MD5:
fdd2c51ecdfe7364052c24da613451e9

SHA-1:
aad1bf40a99e7e56c22d80ffc2fc290c00445c84

SHA-256:
7a6408bfa2330cbd9896c46198fff772dbc1a50817b23d4998364d869c4ad3c4

Scanner detections:
1 / 68

Status:
Adware

Explanation:
This bunder users the InstalleRex from WebPick Internet Holdings to install add-ons such as web browser extensions, coupon plugins (WebSave) and toolbars distributed via the tusfiles.net download site.

Analysis date:
4/26/2024 7:34:55 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.WebPick.Installer (M)
16.6.6.6

File size:
304.4 KB (311,664 bytes)

Product version:
1.0.0.1

Copyright:
Copyright © 2013 WinterSoft

Original file name:
TSULoader.exe

File type:
Executable application (Win32 EXE)

Installer:
WebPick InstalleRex (Tarma)

Common path:
C:\users\{user}\downloads\office_mobile_for_office_365_apk_15.0.1924.2000_patched_full_android.zip.exe

Digital Signature
Signed by:

Authority:
COMODO CA Limited

Valid from:
8/21/2013 8:00:00 PM

Valid to:
8/22/2014 7:59:59 PM

Subject:
CN=Artur Kozak, O=Artur Kozak, STREET=Parkovaya 19, L=Kyiv, S=Kyiv, PostalCode=04078, C=UA

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

Serial number:
00E03731FB48F020DDF5953B6498B83BC6

File PE Metadata
Compilation timestamp:
3/12/2013 4:51:45 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
8.0

CTPH (ssdeep):
6144:+rkX6Y0JQBkQRl7174NpNUM+UHs+h43nRLFJO2t3OEhLSMwcU9P4WbXQx7IK:+rkX63yRl1uqM+gs+2RLTf+QLShvQx7n

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:
7.9599

Developed / compiled with:
Microsoft Visual C++

Code size:
7.5 KB (7,680 bytes)

The file office_mobile_for_office_365_apk_15.0.1924.2000_patched_full_android.zip.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.getapplicationmy.info  (54.201.215.30:80)

TCP (HTTP):
Connects to c1.getapplicationmy.info  (54.201.215.30:80)

 
http://c1.getapplicationmy.info/?step_id=1&installer_id=193924828&publisher_id=939&source_id=0&page_id=0&affiliate_id=0&country_code=ES&locale=EN&browser_id=2&download_id=194524833&external_id=193954918