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korean-calligraphy-font_downloader.exe

YourFileDownloader Installer

Mtech

This is the Via Advertising bundle installer which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed with minimal consent. The application korean-calligraphy-font_downloader.exe by Mtech 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 YourFile Downloader installer. The file has been seen being downloaded from dll513.yorfiled.com.
Publisher:
http://yourfile-downloader.com  (signed by Mtech)

Product:
YourFileDownloader Installer

Version:
1, 0, 665, 1

MD5:
87d3771956dc59898a0b41b7b584f118

SHA-1:
e43aabc7c2686fa394ff96bdd900410359655972

SHA-256:
da0cfd0f83b9b0f76a3648e120d74c316e4375771740746694ffb341c2d87a94

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 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:
11/25/2024 12:33:34 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Via Advertising.Mtech.Bundler (M)
16.5.28.21

File size:
4.4 MB (4,653,400 bytes)

Product version:
1.0.0.1

Copyright:
Copyright http://yourfile-downloader.com (C) 2014

Original file name:
YourFileDownloaderInstaller.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
YourFile Downloader

Language:
English

Common path:
C:\users\{user}\downloads\korean-calligraphy-font_downloader.exe

Digital Signature
Signed by:
Mtech

Authority:
Mtech

Valid from:
4/23/2015 3:27:39 PM

Valid to:
4/22/2016 3:27:39 PM

Subject:
CN=Mtech, O=Mtech, S=London, C=UK

Issuer:
CN=Mtech, C=UK, S=London, L=London, E=admin@mtech.com, O=Mtech

Serial number:
100001

File PE Metadata
Compilation timestamp:
4/24/2015 11:32:16 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
98304:vzpnYbPH26Ivs1Kn0Wj4pV2pfnIVz/Xz8:v6j6H0WLlIVz/o

Entry address:
0x8F1588

Entry point:
9C, E9, E4, 1A, 00, 00, 66, C7, 04, 24, 85, 47, 60, 88, 64, 24, 08, 8D, 64, 24, 24, 0F, 84, AE, CF, BE, FF, 66, 0F, A3, FD, F8, 84, FB, F5, 2C, 30, F9, F8, 60, 3C, 09, 8D, 64, 24, 20, 0F, 81, 1E, 7F, BF, FF, 0F, 87, 17, DF, BE, FF, 60, FF, 34, 24, F9, E8, A5, 5E, BE, FF, 5B, 34, B3, F5, 43, A1, 18, 3F, B4, B3, E5, 8A, 73, A3, F5, A2, 08, 51, AC, 8E, 0A, 79, 84, 7E, 1A, 65, 33, 54, 44, 57, 41, 62, 36, 3D, AA, FB, 85, 12, 9C, C9, 7C, 9D, 77, 9B, 0F, 82, 54, 11, C5, 64, D2, 4A, D5, AF, 77, 86, 8C, 4B, 2D, 50...
 
[+]

Entropy:
7.9276  (probably packed)

Code size:
1.1 MB (1,163,776 bytes)

The file korean-calligraphy-font_downloader.exe has been seen being distributed by the following URL.

http://dll513.yorfiled.com/j5GuWHDVqFUr16xTZtG2MW/MvT4/prYlYuKpPCf51WAu9dNgGujdfVWhjzZO5cBTHujAUgfGiQpEkJMKSLdoFwPfIwMwkW8dL5dSCzOIdL522nbrO2NytmciaespV0n8LXgY4wp1SP8VekjrRHtezkhoUdQtQ1beGFBP1kd8CZUMSSTb3VMl0uVfEtHlBWHl lgmmPswZPmmdnP9omZQ4qZiVOWRdhy6 TwMrMJlENCaaBbSilEcjoQBG4mDC7iQigrmk6RJsMLxErzIq0G3dq9B1k/07P42s q7bLv8nD7vqtZigPnNRIX12SLYvsFRgfjARIb/0E/.../WZRbn3WoQ7dk Euw=

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