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camstudio setup.exe

CamStudio 2016

Download Assistant

This is part of the Air Installer, a download manager which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed with minimal consent. The application camstudio setup.exe by Download Assistant 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 AirInstaller Download Manager installer. The file has been seen being downloaded from software.softwarerotate5.com.
Publisher:
Download Assistant  (signed and verified)

Product:
CamStudio 2016

Version:
3.0.0.156

MD5:
d3bb6200a4c7a237b23aa02988a3cac6

SHA-1:
cc5511635d212f506fa95f9e3c2ff866e4dbf0e8

SHA-256:
b47dc38f4a83e608655c8ff614c7c327e39d5ea731fc800423bb7829c0e5147c

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:
11/15/2024 11:41:55 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software.Download.Bundler (M)
16.6.7.9

File size:
1.1 MB (1,142,576 bytes)

Product version:
3.0.0.156

Copyright:
(c) Download Assistant

File type:
Executable application (Win32 EXE)

Bundler/Installer:
AirInstaller Download Manager

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\camstudio%20setup.exe

Digital Signature
Signed by:
Download Assistant

Authority:
Symantec Corporation

Valid from:
5/3/2016 8:00:00 AM

Valid to:
8/2/2017 7:59:59 AM

Subject:
CN=Download Assistant, O=Download Assistant, L=Victoria, S=British Columbia, C=CA

Issuer:
CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
088066A3A015128F544F3E16DC53BCE8

File PE Metadata
Compilation timestamp:
1/30/2013 10:21:56 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:nxGvF6LUdC1wJwZdFD2xuPRWDEPqV8qCdLritxsEJakZa:QtYHUwlD2xuU2d/itxsEJakE

Entry address:
0x113BC

Entry point:
55, 8B, EC, 83, C4, A4, 53, 56, 57, 33, C0, 89, 45, C4, 89, 45, C0, 89, 45, A4, 89, 45, D0, 89, 45, C8, 89, 45, CC, 89, 45, D4, 89, 45, D8, 89, 45, EC, B8, 2C, 00, 41, 00, E8, E8, 51, FF, FF, 33, C0, 55, 68, 9E, 1A, 41, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 5A, 1A, 41, 00, 64, FF, 32, 64, 89, 22, A1, 48, 5B, 41, 00, E8, 16, D8, FF, FF, E8, 65, D3, FF, FF, 80, 3D, DC, 2A, 41, 00, 00, 74, 0C, E8, 2B, D9, FF, FF, 33, C0, E8, 80, 32, FF, FF, 8D, 55, EC, 33, C0, E8, E2, A3, FF, FF, 8B, 55, EC, B8, 50, 86...
 
[+]

Entropy:
6.9691

Developed / compiled with:
Microsoft Visual C++

Code size:
65.5 KB (67,072 bytes)

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

http://software.softwarerotate5.com/v2/click/528c96da/?affiliate_image=http://www.softwaredownloadr.com/.../camstudio40.png&cancel_url=&d=http://cdn.downloadfree2.com/software/camstudio.exe&done_url=&filename=CamStudio Setup&key=76fd55994bede9629bba2e1d97f9d4118a0aa97e5667b7be326742f93dcc3add&n=CamStudio 2016&product_image=http://www.softwaredownloadr.com/.../camstudio85.png&sid=SoftwareDownloadr-Y-USA-camstudio-&uid=&uao=TW96aWxsYS81LjAgKFdpbmRvd3MgTlQgMTAuMDsgV09XNjQpIEFwcGxlV2ViS2l0LzUzNy4zNiAoS0hUTUwsIGxpa2UgR2Vja28pIENocm9tZS81MC4wLjI2NjEuMTAyIFNhZmFyaS81MzcuMzY_&scid=71701038-1f2e-11e6-865a-0401abff7801

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