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setup.exe

Yordan Damyanov

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 setup.exe by Yordan Damyanov 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. The file has been seen being downloaded from www.adnetwork100.info. While running, it connects to the Internet address r1.stylezip.info on port 80 using the HTTP protocol.
Publisher:
Yordan Damyanov  (signed and verified)

MD5:
31752ad16b7f996af5101fddd395e1ad

SHA-1:
37bb5c6faa9234d6affb1f45641891821a72699d

SHA-256:
cec71e39797c2ca7c1e294d95289a85ed89e3adc02803eebf79f0019b0c90b9a

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:
12/27/2024 7:11:06 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.WebPick.YordanDamyanov.Bundler (M)
15.11.7.14

File size:
1.6 MB (1,666,832 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
WebPick InstalleRex

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

Digital Signature
Signed by:
Yordan Damyanov

Authority:
COMODO CA Limited

Valid from:
10/7/2013 3:00:00 AM

Valid to:
10/8/2015 2:59:59 AM

Subject:
CN=Yordan Damyanov, O=Yordan Damyanov, STREET=19 Dobri Voinikov Str, L=Sofia, S=Sofia, PostalCode=1000, C=BG

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

Serial number:
00FEEF0D77D0AC7E55D4E7707B384AC901

File PE Metadata
Compilation timestamp:
12/11/2013 12:06:05 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
49152:383WCHoqRMIs8l+rz6bZ/fnw6RscHDEMXid:3aW8Rfzl+X6bZ/vvR5Dnyd

Entry address:
0x562F

Entry point:
E8, 41, 5C, 00, 00, E9, 89, FE, FF, FF, 8B, FF, 55, 8B, EC, 81, EC, 28, 03, 00, 00, A3, 48, 94, 41, 00, 89, 0D, 44, 94, 41, 00, 89, 15, 40, 94, 41, 00, 89, 1D, 3C, 94, 41, 00, 89, 35, 38, 94, 41, 00, 89, 3D, 34, 94, 41, 00, 66, 8C, 15, 60, 94, 41, 00, 66, 8C, 0D, 54, 94, 41, 00, 66, 8C, 1D, 30, 94, 41, 00, 66, 8C, 05, 2C, 94, 41, 00, 66, 8C, 25, 28, 94, 41, 00, 66, 8C, 2D, 24, 94, 41, 00, 9C, 8F, 05, 58, 94, 41, 00, 8B, 45, 00, A3, 4C, 94, 41, 00, 8B, 45, 04, A3, 50, 94, 41, 00, 8D, 45, 08, A3, 5C, 94, 41...
 
[+]

Entropy:
7.8958  (probably packed)

Code size:
75 KB (76,800 bytes)

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

http://www.adnetwork100.info/.../download.php?wti=&src=122&sta=20s2mA3MQDDORAA6yMAAC1I9ES81vQPdf000DDORAA&clickid=20s2mA3MQDDORAA6yMAAC1I9ES81vQPdf000DDORAA

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=33441726&publisher_id=344&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=100325178&external_id=0&session_id=200650356&hardware_id=234092082&installer_file_name=setup

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