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teamviewer.exe

FITDownloader

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application teamviewer.exe by FITDownloader has been detected as adware by 12 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. The file has been seen being downloaded from d13dhn7ldhrcf6.cloudfront.net.
Publisher:
FITDownloader  (signed and verified)

MD5:
fe91f84c02f2061fa6c2c43fdf38e204

SHA-1:
cce5890322dc4cff41087d21b6a09b38f7a9a926

SHA-256:
88567ecf002dd2d56fb4cac96e6c4d1911d95fa2fb6227aa9bd04d095f5aba57

Scanner detections:
12 / 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 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:
4/19/2024 7:01:35 PM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
PUP/Win32.InstallCore
2015.05.13

AVG
Generic
2016.0.3111

Bkav FE
W32.HfsAdware
1.3.0.6379

Comodo Security
Application.Win32.InstallCore.KK
22090

Dr.Web
Trojan.Packed.24524
9.0.1.0132

ESET NOD32
Win32/InstallCore.OX potentially unwanted application
9.7.0.302.0

herdProtect (fuzzy)
variant of hdd-low-level-format-tool.exe (Adware)
2015.8.9.11

K7 AntiVirus
Unwanted-Program
13.185.14057

NANO AntiVirus
Riskware.Win32.InstallCore.dfgovt
0.28.6.63474

Reason Heuristics
Threat.Installer.FITDownloader
15.5.12.9

Sophos
Install Core Click run software
4.98

VIPRE Antivirus
Threat.4150696
34232

File size:
801.4 KB (820,648 bytes)

Product version:
1.5

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

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

Digital Signature
Signed by:
FITDownloader

Authority:
COMODO CA Limited

Valid from:
4/28/2014 1:00:00 AM

Valid to:
4/29/2015 12:59:59 AM

Subject:
CN=FITDownloader, O=FITDownloader, STREET=28 Lenelblome St., L=Tel-Aviv, S=Israel, PostalCode=651307, C=IL

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
5E0816C139E8D20E76830D3D9638C4FE

File PE Metadata
Compilation timestamp:
6/19/1992 11:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:AjmwIMLuG6Cdk7S5/jzaw1XAGXJLoiYx/:AjmLBZO5/vamQoXu

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, 53, C9, FF, FF, E8, 9A, 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:
7.8505

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

Code size:
37 KB (37,888 bytes)

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

https://d13dhn7ldhrcf6.cloudfront.net/download.php?os=&icon=aHR0cDovL3NjcmVlbnNob3RzLmVuLnNmdGNkbi5uZXQvZW4vc2Nybi82MDAwMC82MDk1OC90ZWFtdmlld2VyLTQuanBn&desc=U2ltcGxlLCBmYXN0IGFuZCBzZWN1cmUgZGVza3RvcCBzaGFyaW5n&name=TeamViewer&domain=teamviewer&ss=&lang=en_US&url=aHR0cDovL3RlYW12aWV3ZXIuZW4uc29mdG9uaWMuY29t&version=121114&ins=ssnet

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