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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:
bca04bfe8fbaa6c183e2620f9bf3900d

SHA-1:
13281904205ca642baecad9a65cc8d34722bf171

SHA-256:
eab6539cbbadfe8d54e03fef68997abfa0112b003d83be305ae76403aa280ef9

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:
4/26/2024 3:42:29 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.WebPick (M)
16.7.18.21

File size:
1.6 MB (1,687,048 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:
12/5/2013 12:17:08 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
49152:Z44UR1W9jpawNpdUnpCZxiLA8FXgPBQKg/VBEUBA7n8:Z44URM9jcwNjImKFXgPBQKg/ViO28

Entry address:
0x86B0

Entry point:
E8, B1, 6A, 00, 00, E9, 89, FE, FF, FF, 8B, FF, 55, 8B, EC, 81, EC, 28, 03, 00, 00, A3, 98, B1, 41, 00, 89, 0D, 94, B1, 41, 00, 89, 15, 90, B1, 41, 00, 89, 1D, 8C, B1, 41, 00, 89, 35, 88, B1, 41, 00, 89, 3D, 84, B1, 41, 00, 66, 8C, 15, B0, B1, 41, 00, 66, 8C, 0D, A4, B1, 41, 00, 66, 8C, 1D, 80, B1, 41, 00, 66, 8C, 05, 7C, B1, 41, 00, 66, 8C, 25, 78, B1, 41, 00, 66, 8C, 2D, 74, B1, 41, 00, 9C, 8F, 05, A8, B1, 41, 00, 8B, 45, 00, A3, 9C, B1, 41, 00, 8B, 45, 04, A3, A0, B1, 41, 00, 8D, 45, 08, A3, AC, B1, 41...
 
[+]

Entropy:
7.9231  (probably packed)

Code size:
77.5 KB (79,360 bytes)

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

http://www.adnetwork100.info/.../download.php?wti=&src=122&sta=20s2mA08ST8gFs2W1J9MJW1vPbzG000DDORAA&clickid=20s2mA08ST8gFs2W1J9MJW1vPbzG000DDORAA

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=266906138&publisher_id=669&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=800718414&external_id=0&session_id=1601436828&hardware_id=1868342966&installer_file_name=setup

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