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f_00074a

Dennis Nazarenko

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 file f_00074a by Dennis Nazarenko 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 static.letoltokozpont.hu. While running, it connects to the Internet address r1.stylezip.info on port 80 using the HTTP protocol.
Publisher:
Dennis Nazarenko  (signed and verified)

MD5:
2c5b1d2103325f6dcaf6b165f54ab872

SHA-1:
cf9046e5d1c98ed3b89a8c9be4be16c98e78efc3

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:
11/17/2024 5:21:42 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.WebPick.DennisNazarenko.Bundler (M)
16.3.1.10

File size:
1.2 MB (1,235,320 bytes)

Bundler/Installer:
WebPick InstalleRex (using Nullsoft Install System)

Common path:
C:\Documents and Settings\{user}\Application data\comodo\dragon\user data\default\cache\f_00074a

Digital Signature
Signed by:
Dennis Nazarenko

Authority:
The USERTRUST Network

Valid from:
11/2/2007 1:00:00 AM

Valid to:
11/2/2008 12:59:59 AM

Subject:
CN=Dennis Nazarenko, O=Dennis Nazarenko, POBox=15A, STREET=Jovtneva 7A, L=Vishneve, S=Kievskaya, PostalCode=08132, C=UA

Issuer:
CN=UTN-USERFirst-Object, OU=http://www.usertrust.com, O=The USERTRUST Network, L=Salt Lake City, S=UT, C=US

Serial number:
00DBE65D78CE895A82ADCC70F584A6A0BB

File PE Metadata
Compilation timestamp:
5/5/2007 2:23:41 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
24576:hAI3D+EysXrv7tfScAkqLJd6iCtjCXF2Qs73MNFNADgr/aZ:2IKE7bxSPkWatK2778NsDWs

Entry address:
0x3190

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, D8, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 53, FF, 15, 78, 72, 40, 00, A3, B4, EC, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 30, 90, 42, 00, FF, 15, 54, 71, 40, 00, 68, C8, 91, 40, 00, 68, 00, E4, 42, 00, E8, 82, 27, 00, 00, FF, 15, B0, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 70, 27, 00, 00, 53, FF, 15, 08, 71, 40, 00, 80, 3D, 00, 40, 43, 00, 22, A3, 00, EC, 42, 00, 8B, C7, 75, 0A...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file f_00074a has been seen being distributed by the following URL.

http://static.letoltokozpont.hu/letoltokozpont.hu/programok/.../vistastartmenu_setup_2_7_freeware_en.exe

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=85829136&publisher_id=582&source_id=0&page_id=0&country_code=US&locale=US&browser_id=4&download_id=257487408&external_id=0&session_id=514974816&hardware_id=600803952&installer_file_name=f_00074a

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