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icreinstall_camstudio.exe

CamStudio

MaxPlatform (Fried Cookie Ltd)

The installer utilizes InstallCore which may bundle about 3-4 offers for various ad-supported toolbars, extensions and utilities. The application icreinstall_camstudio.exe by MaxPlatform (Fried Cookie) has been detected as adware by 11 anti-malware scanners. 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. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from cdn.camstudiodelivery.com and multiple other hosts. While running, it connects to the Internet address os.solvefile.com on port 80 using the HTTP protocol.
Publisher:
%VENDOR%  (signed by MaxPlatform (Fried Cookie Ltd))

Product:
CamStudio

Version:
2.0.5.a0.1_40505

MD5:
c215e3efad752ced29a9ccf38cfc1ce2

SHA-1:
cf541c37ab4d7c51c5c738a89c9af7bcd4655427

SHA-256:
d7a52c8989658b25a189cb26e79b22432df5523a1ef5efea9f609a82cc817476

Scanner detections:
11 / 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 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
1/4/2025 2:03:28 AM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
PUA/InstallCore.Gen4
8.3.1.6

AVG
Generic
2016.0.3074

Comodo Security
Application.Win32.FriedCookie.CIRK
22495

Dr.Web
Trojan.InstallCore.864
9.0.1.0169

Malwarebytes
PUP.Optional.InstallCore.SID.C
v2015.06.18.06

McAfee
Artemis!C215E3EFAD75
5600.6730

Panda Antivirus
PUP/Multitoolbar
15.06.18.06

Qihoo 360 Security
Win32/Virus.548
1.0.0.1015

Reason Heuristics
PUP.InstallCore.Installer (M)
15.6.18.14

Trend Micro House Call
Suspicious_GEN.F47V0615
7.2.169

Vba32 AntiVirus
Malware-Cryptor.InstallCore.gen
3.12.26.4

File size:
953.4 KB (976,272 bytes)

Product version:
2.0.5.a0.1_40505

Copyright:
%VENDOR%

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\icreinstall_camstudio.exe

Digital Signature
Signed by:
MaxPlatform (Fried Cookie Ltd)

Authority:
GlobalSign nv-sa

Valid from:
4/27/2015 12:42:25 PM

Valid to:
4/27/2016 12:42:25 PM

Subject:
CN=MaxPlatform (Fried Cookie Ltd), O=MaxPlatform (Fried Cookie Ltd), L=Tel Aviv, C=IL

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

Serial number:
1121507E6BDD0438A3C158F873DCAA10634D

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:TnHcuUR2DfhdGzVETEbiFpTkRsedkUqL/1fmFs6tkeq:THfhdGWAiTTkRseANwVq

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, BF, A9, FF, FF, E8, 5E, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

Entropy:
7.9313

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

Code size:
37 KB (37,888 bytes)

The file icreinstall_camstudio.exe has been seen being distributed by the following 5 URLs.

http://cdn.camstudiodelivery.com/c?x=wNp4VLEqPeL2DxfoRNreWooS4fErI1UNqeLwAUJc6Go=&c=TaZK3wSPauy7NHfjRkXa3Vo1qZGC4io4izyRThTEuCAWX8PqlzTMZt1FOeQ0a6DTsErn/y3UfSrkMIf4CchFsEVqF2PPBFH7aXzNeRcuAlL3iUhOvFcNbW7F1 FH8hby&fallback_url=https://s3.amazonaws.com/.../CamStudioSetup.exe&downloadAs=camstudio.exe

http://cdn.camstudiodelivery.com/c?x=h0P81C7qB0XZCpHBIXPmG5DmIjNOkXf FZDVhmzNmsA=&c=Lu8oL4EGIYs2JNhqaG VHs7v0NbTX/add 0totpOgoxEZ1Qp JJf8yDuwkmiYgwLGJVbJwQ5P9PjSBt3fafaaGCrnJvecnoP5csiNC94Y3nvCPY7ql6nR8xiRo2DBeAX&fallback_url=https://s3.amazonaws.com/.../CamStudioSetup.exe&downloadAs=camstudio.exe

http://cdn.camstudiodelivery.com/c?x=nU7eByduky2L8U99LDp D9iN9 0XdFIL4DBZn5ltW0E=&c=mhz iCdfETjlusfjxsD7frk ywDtrxp6O1SlK pLBTrbD7MOj6ae 7BaC7olWFh0XxJipzeojTN2iWf1nVQb1ueycN2mbrnUy/S49/FUGNdu1tysMm/Y0EwbL4xYR7fS&fallback_url=https://s3.amazonaws.com/.../CamStudioSetup.exe&downloadAs=camstudio.exe

http://cdn.camstudiodelivery.com/c?x=LiYgWReFb1MY3ej1gDXeO KZlvWhzQeAFZhFyI2HqRk=&c=GPFL3FEolR gyl9JFrKlSmVhJrCdRYyckx/V3G2wV6e4bprtVlgx7UCzczsLnxwriGEDMAzlMrY9PvHkykXGBr8 YG49LhBkXCRatNgMo hXzFBh1Xr8sP0Jvh5JPuZ7&fallback_url=https://s3.amazonaws.com/.../CamStudioSetup.exe&downloadAs=camstudio.exe

http://cdn.camstudiodelivery.com/c?x=YrEACFymPaAHdLYLkMba95RkS9lPSvFQtEqeli/VC6s=&c=R0yUC2fcOgLLZ8YIXHbdO1nyChhc8RXxd FlsYYyTFr7HaCoOc2Fltwc2oad6/YHOIrJ9s1t RlMG5AgUQfyB6K5FsqpMtaqsjYwuXI0 tHpw6aE13lsHzjLU13O3X3F&fallback_url=https://s3.amazonaws.com/.../CamStudioSetup.exe&downloadAs=camstudio.exe

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to os.solvefile.com  (207.189.109.121:80)

TCP (HTTP):
Connects to cdnus.solvefile.com  (207.189.109.121:80)

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