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camtasiastudi.exe

StART Playing

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The application camtasiastudi.exe by StART Playing 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 OutBrowse Revenyou installer. The file has been seen being downloaded from get.file15desktop.com.
Publisher:
StART Playing  (signed and verified)

MD5:
e491ac81c0ec112baa264a8a79482d19

SHA-1:
edb2c9db319e571863dba8a84bde08a29ac29a48

SHA-256:
714e4f7b72566b474a6799ecf93a60e56cecb10f5ca7e1321b99cbda5b2fac3a

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:
5/9/2024 8:05:49 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.StARTPla.Bundler (M)
16.5.27.23

File size:
573.7 KB (587,448 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
OutBrowse Revenyou (using Nullsoft Install System)

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

Digital Signature
Signed by:
StART Playing

Authority:
thawte, Inc.

Valid from:
1/19/2015 3:00:00 AM

Valid to:
12/12/2015 2:59:59 AM

Subject:
CN=StART Playing, O=StART Playing, L=Dublin, S=Dublin, C=IE

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
58DF35F2B2CFE8E44EF980DD11E01B9F

File PE Metadata
Compilation timestamp:
12/6/2009 1:50:52 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:UHI5HSxHOOMuKIX0p6poP1vtN7DPFbwjIY7OnQrBHc:UCyUOMCCKoP1rXmjHGQra

Entry address:
0x30FA

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://get.file15desktop.com/.../Get?p=18474&d=25803&l=23929&n=1&dynamicname=Setup&filename=CamtasiaStudi&s=10446

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