camstudio_setup.exe

TODO:

Optimum Installer

This adware bundler is distributed through Adknowledge's advertising supported software managers. The application camstudio_setup.exe, “Camstudio Setup ” by Optimum Installer 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 Adknowledge Fusion installer. The file has been seen being downloaded from install.optimuminstaller.com.
Publisher:
OptimumInstaller  (signed by Optimum Installer)

Product:
TODO: <Product name>

Description:
Camstudio Setup

Version:
2.0.0

MD5:
552991f6a80e89b2867f19af329cedb8

SHA-1:
b0bc0d6d8f49d31a96a7e802eca8a6fd93f2f61c

SHA-256:
c2fba5ce76fa0680f1466a7c822bf552414c4690dbd17331bd2872978430f9fd

Scanner detections:
1 / 68

Status:
Adware

Explanation:
This installer bundles various adware prorgams that may include toolbars and web browser advertising injectors/extensions.

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:
11/23/2024 9:29:56 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Adknowledge.OptimumInstaller.Installer (M)
15.6.28.21

File size:
632.6 KB (647,776 bytes)

Product version:
2.0.0

Original file name:
Setup.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Adknowledge Fusion

Language:
English (United States)

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

Digital Signature
Authority:
VeriSign, Inc.

Valid from:
11/7/2011 7:00:00 PM

Valid to:
11/7/2012 6:59:59 PM

Subject:
CN=Optimum Installer, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Optimum Installer, L=Kansas City, S=Missouri, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
0809956535A889F9931BDEF10FF6814A

File PE Metadata
Compilation timestamp:
5/4/2012 9:11:51 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
12288:ElwBb+3fHVxUvaYSDgl7JYXnP3IoYmXaTdYuapUfXC5WL+ZV0pgq:Ely+3NxUvaYSDglJYXngoYmXaTdYyfSG

Entry address:
0x54DE3

Entry point:
E8, 3F, F1, 00, 00, E9, 78, FE, FF, FF, 8B, FF, 55, 8B, EC, 83, EC, 10, 8B, 4D, 08, 53, 8B, 5D, 0C, 56, 57, 33, FF, 89, 4D, F8, 89, 5D, FC, 39, 7D, 10, 74, 21, 39, 7D, 14, 74, 1C, 3B, CF, 75, 1F, E8, 05, 0B, 00, 00, 57, 57, 57, 57, C7, 00, 16, 00, 00, 00, 57, E8, 19, CE, FF, FF, 83, C4, 14, 33, C0, 5F, 5E, 5B, C9, C3, 8B, 75, 18, 3B, F7, 74, 0D, 83, C8, FF, 33, D2, F7, 75, 10, 39, 45, 14, 76, 21, 83, FB, FF, 74, 0B, 53, 57, 51, E8, 4C, C6, FF, FF, 83, C4, 0C, 3B, F7, 74, B9, 83, C8, FF, 33, D2, F7, 75, 10...
 
[+]

Entropy:
6.4507

Code size:
458 KB (468,992 bytes)

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

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