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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. It is also typically executed from an Internet Explorer cache folder. 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:
d43a94fc2b3149124d58a9a1fc974250

SHA-1:
be51c5731aab52924134d5c43f53321feb306bfa

SHA-256:
fb7320b98cfdf19e52ef48bddddabdd4ec512bf98037c61b57eef2d451894ed9

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 an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
12/27/2024 7:36:56 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.WebPick (M)
16.7.27.17

File size:
1.6 MB (1,666,824 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
WebPick InstalleRex

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\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 1:06:05 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
49152:v83WCHoqRMIs8l+rz6bZ/fnw6RscHDEMXik:vaW8Rfzl+X6bZ/vvR5Dnyk

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=20s2mA4MY3oA2yd91BgpbM1vR3fW000DDORAA&clickid=20s2mA4MY3oA2yd91BgpbM1vR3fW000DDORAA

The executing file has been seen to make the following network communication in live environments.

TCP (HTTP):
Connects to r1.stylezip.info  (54.186.255.26:80)

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