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camstudio.exe

SpeedyInstall (Alpha Criteria Ltd.)

The application camstudio.exe by SpeedyInstall (Alpha Criteria) 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 installCore installer. The setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions. The file has been seen being downloaded from www.giftcapitalbyte.com and multiple other hosts.
Publisher:
CamStudio  (signed by SpeedyInstall (Alpha Criteria Ltd.))

Product:
CamStudio

Version:
2.0.5.a0.1_63242

MD5:
fbe440158b751378e1ecc36c38f9733f

SHA-1:
64d8ccc1341320a75cac83d50e9e4cba917e1ea6

SHA-256:
cbbe4c0720dc6a5865da95979494db066fc7409208a5c7c333bc233d13719d09

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

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:
11/1/2024 10:23:18 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.InstallCore.AC (M)
16.8.3.17

File size:
990.4 KB (1,014,184 bytes)

Product version:
2.0.5.a0.1_63242

Copyright:
CamStudio

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

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

Digital Signature
Signed by:
SpeedyInstall (Alpha Criteria Ltd.)

Authority:
GlobalSign nv-sa

Valid from:
1/6/2016 10:35:52 AM

Valid to:
8/20/2016 10:45:01 AM

Subject:
CN=SpeedyInstall (Alpha Criteria Ltd.), O=SpeedyInstall (Alpha Criteria Ltd.), L=Tel Aviv, C=IL

Issuer:
CN=GlobalSign CodeSigning CA - SHA256 - G2, O=GlobalSign nv-sa, C=BE

Serial number:
1121A6DC69485443ADA37B28455486E38F93

File PE Metadata
Compilation timestamp:
6/19/1992 6:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:WbR0DaELULPyWKs2GEoFHzjhSsCbylglmsHZ/w5+WBaNWl7ul:WNjLPyWKslEoFHx6HdwFYNWO

Entry address:
0xA5F8

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, CE, 8A, FF, FF, E8, D5, 9C, FF, FF, E8, 64, 9F, FF, FF, E8, 07, A0, FF, FF, E8, A6, BF, FF, FF, E8, 11, E9, FF, FF, E8, 78, EA, FF, FF, 33, C0, 55, 68, C9, AC, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 92, AC, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 26, F5, FF, FF, E8, 11, F1, FF, FF, 80, 3D, 34, B2, 40, 00, 00, 74, 0C, E8, 23, F6, FF, FF, 33, C0, E8, C4, 97, FF, FF, 8D, 55, F0, 33, C0, E8, B6, C5, FF, FF, 8B, 55...
 
[+]

Entropy:
7.9321

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
39.5 KB (40,448 bytes)

The file camstudio.exe has been seen being distributed by the following 2 URLs.

http://www.giftcapitalbyte.com/gFB4K1HGwElXtxrtVFO6Zr4Yg3AKAv PzCdvJ0RrY3BAjmBm3HcS5ibYGclgzR_9V3uIsbMzQwuQknWgN0oktBvYeRLfMY UeaeVb0EEe gbimz1ZwL0LgavbwlL2abJusewMU8YLZ3U Xknpdf EXJkXV3pv0Oaq uBuwpQH7GVjca4ZEdAOUd0byO39kBNtmFo4MtVdT6ottFSB1kmaBGsq3YQ==-GzAAAMRtbD7PaUzHinBGEQXBRA4cWkRd6E1tHcgbYzSEZ7dGXVqZJ lTew29AA==-e

http://www.giftcapitalbyte.com/vJmB86YCpJto6NO46Of8MpQIQWyHb8_wj2p55PXa2Z7ILIYsDoj2mIv3H0cZJokrA_b4zx696nD3Ljf6CJVdrON8VYNk5BdG_CKLigSNxI1QmdX3jxVC_Nkq3ixF_t8_N_65rwhNrZEhpR3Zvirw8WK_07J2m9W64u5yXMfCektJGZ6d9o yM9oxJA1MNh2J0hvhGn2tAIrT2KyQmRh5hJEvP1MK Q==-GzAAAMRtbD7PaUzHinBGEQXBRA4cWkRd6E1tHcgbYzSEZ7dGXVqZJ lTew29AA==-e

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