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browsecoupon_setup.exe

Anton Kulichenko

The is the installer for the WebPick InstalleRex download manager which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed without consent. The application browsecoupon_setup.exe by Anton Kulichenko 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 installer. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from save4u.eu. While running, it connects to the Internet address r1.stylezip.info on port 80 using the HTTP protocol.
Publisher:
Anton Kulichenko  (signed and verified)

MD5:
a5df12ca5478db7b0aad28ff1858ff5d

SHA-1:
a5209067898718f3bd6f3813193511a9d007ecb6

SHA-256:
d4b120b916295025c8d5c6f7ed47431137976f7f5cbde0d5cb862dac27c85cfd

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
4/19/2024 2:53:24 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.WebPick.AntonKulichenko.Bundler (M)
16.2.4.4

File size:
628.5 KB (643,544 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
WebPick InstalleRex

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\addons\browsecoupon_setup.exe

Digital Signature
Signed by:
Anton Kulichenko

Authority:
COMODO CA Limited

Valid from:
12/3/2013 7:00:00 AM

Valid to:
12/4/2014 6:59:59 AM

Subject:
CN=Anton Kulichenko, O=Anton Kulichenko, STREET=Engineering 7, L=Kiev, S=Kiev, PostalCode=01013, C=UA

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

Serial number:
00E406368A873FE17B8962DA09A05F7B2E

File PE Metadata
Compilation timestamp:
3/3/2014 5:29:50 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
12288:DAQqwnDRZ9BFRmGOwRRJ1EJDJea3/znv4LRIQFW3mI39ce1V15H/as:DdLZ9BFR3OwRV0eaPjIIegEC5H/as

Entry address:
0x11EBB

Entry point:
E8, CE, 49, 00, 00, E9, 00, 00, 00, 00, 6A, 14, 68, F8, 32, 42, 00, E8, AF, 20, 00, 00, E8, E0, 07, 00, 00, 0F, B7, F0, 6A, 02, E8, 61, 49, 00, 00, 59, B8, 4D, 5A, 00, 00, 66, 39, 05, 00, 00, 40, 00, 74, 04, 33, DB, EB, 33, A1, 3C, 00, 40, 00, 81, B8, 00, 00, 40, 00, 50, 45, 00, 00, 75, EB, B9, 0B, 01, 00, 00, 66, 39, 88, 18, 00, 40, 00, 75, DD, 33, DB, 83, B8, 74, 00, 40, 00, 0E, 76, 09, 39, 98, E8, 00, 40, 00, 0F, 95, C3, 89, 5D, E4, E8, 20, 37, 00, 00, 85, C0, 75, 08, 6A, 1C, E8, DC, 00, 00, 00, 59, E8...
 
[+]

Entropy:
7.7311  (probably packed)

Code size:
108 KB (110,592 bytes)

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

http://save4u.eu/?e=bsp&publisher=1851&country=TH&dd=5&cid=320&vn=102&ind=4880438331039742664&exid=1393914381359123926&ssd=13535100377203668220&hid=10611653911324677533&osid=601&channel=0&sfx=1&jc=1&category_name=&install_date=20130304

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=59063906&publisher_id=906&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=177191718&external_id=0&session_id=354383436&hardware_id=413447342&installer_file_name=browsecoupon_setup

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