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microsoft-net-framework.exe

Gufotig

UpdateStar GmbH

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application microsoft-net-framework.exe, “Gufotig Setup ” by UpdateStar GmbH has been detected as a potentially unwanted program 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 file has been seen being downloaded from www.cycletowerbest.com.
Publisher:
Mog   (signed by UpdateStar GmbH)

Product:
Gufotig

Description:
Gufotig Setup

Version:
4.3.5.6

MD5:
f11beecb13d6b473428af36ea800c7c4

SHA-1:
414219cd9686c2df7c383860e277e2bc003a7cb1

SHA-256:
2f5565aa209d467384794b9849785a1a014fa62c5006d8e37107f5597c472568

Scanner detections:
1 / 68

Status:
Potentially unwanted

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 '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:
12/25/2024 7:30:32 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore.UpdateSt.Installer (M)
16.6.24.19

File size:
1 MB (1,053,208 bytes)

Product version:
2.4

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Common path:
C:\users\{user}\downloads\microsoft-net-framework.exe

Digital Signature
Signed by:
UpdateStar GmbH

Authority:
GlobalSign nv-sa

Valid from:
1/25/2016 6:35:00 PM

Valid to:
3/23/2017 10:24:09 PM

Subject:
CN=UpdateStar GmbH, O=UpdateStar GmbH, L=Berlin, S=Berlin, C=DE

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

Serial number:
1121C7585A2F5B2218EC6B36D472BA6496D8

File PE Metadata
Compilation timestamp:
6/20/1992 6:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:mQkKEY7qm/1wv048SkSagBSufwL1yKma/ABEbqiomQnuubfVYaatG:mXK7qm/is48aagcLkKma/ABELomYuKtO

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:
7.9052

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

Code size:
37 KB (37,888 bytes)

The file microsoft-net-framework.exe has been seen being distributed by the following URL.

http://www.cycletowerbest.com/c?x=PendukpWUwAwBNljuQLk jbCgwo6OIrYO p3NZaIyZs=&c=4zE81idlI7oYGMsI89erc9Q0FbNZL2aYtOWB4tpCF3qn7d68aTTJi34e429SiEFNaCFWg1XvJrOuxJXS3477hIEZOyuc6vWOKX5r1CSA1YDNMpR9AvWhiHP3SXw9P7hsfuzVXBKFCpCOB3FokGUUDnHawF0dsi0NhdEre2FZLix5hOqUd3SuVHWSvAh 9hJB&downloadAs=microsoft-net-framework.exe&fallback_url=http://download.microsoft.com/download/1/4/A/.../NDP46-KB3045560-Web.exe

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