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leithold_downloader.exe

YourFileDownloader Installer

Goldencalf LLC

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 leithold_downloader.exe by Goldencalf 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 YourFile Downloader installer. The file has been seen being downloaded from dll513.yofiledo.com.
Publisher:
http://yourfile-downloader.com  (signed by Goldencalf LLC)

Product:
YourFileDownloader Installer

Version:
1, 0, 659, 1

MD5:
0d1b7a33959bc0904e6fa3f3314701b2

SHA-1:
55faa4ea1c6a45f2e1659dace081685455d59d8d

SHA-256:
a6c1ab6d74d9795ffca3237d9c4b7f05123f732396963ed073cee7560e0f2acb

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 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:
11/14/2024 9:36:56 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
16.7.16.19

File size:
4.3 MB (4,466,128 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\leithold_downloader.exe

Digital Signature
Signed by:
Goldencalf LLC

Authority:
Goldencalf LLC

Valid from:
3/27/2015 9:26:58 AM

Valid to:
3/26/2016 9:26:58 AM

Subject:
CN=Goldencalf LLC, OU=Goldencalf LLC, O=Goldencalf LLC, S=London, C=UK

Issuer:
CN=Goldencalf LLC, C=UK, S=London, L=London, E=admin@goldencalf.com, OU=Goldencalf LLC, O=Goldencalf LLC

Serial number:
100001

File PE Metadata
Compilation timestamp:
4/16/2015 9:35:41 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
98304:CRDbZ+1Tp62lRthQKBClVMfxyTwYTQ5TsN7:i5+haCClViyTwYTiT8

Entry address:
0x49C716

Entry point:
50, 55, C7, 44, 24, 04, 29, 20, 0D, 08, 66, C7, 04, 24, FF, 63, C7, 04, 24, 97, A1, FE, 13, 57, 8D, 64, 24, 04, E9, 55, 20, 3D, 00, 66, 0F, A3, FB, 29, C1, 88, D8, B0, 0B, 60, 8A, 45, FE, FF, 34, 24, E8, 15, 18, 06, 00, 8D, 64, 24, 34, E8, 3E, E9, FE, FF, 9C, E8, C5, C0, 06, 00, B9, 04, 00, 00, 00, 60, 88, F8, F6, D0, AC, E8, 00, AD, FE, FF, E9, DA, 06, 06, 00, 88, 6C, 24, 04, E8, 07, 72, FE, FF, FF, 34, 24, 8D, 64, 24, 08, 0F, 82, C0, 7C, FE, FF, 66, 0F, C8, 8B, 45, E0, FE, C1, F6, C5, 77, F7, D0, 80, C6...
 
[+]

Code size:
803 KB (822,272 bytes)

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

http://dll513.yofiledo.com/j5GJUmvEoVRq0OtLeYXgdzyF43Ei Ol9MLeoLXOs3GIu/NBjG bPK0emmTFPqq4KSuHBQUaSmA1QjZ4wTpFxFgPVIxQumWoQe8UrCy6LTushj2G6JWV75z9qdu4 ew/wMWED4wZjdvgJYUPrGGEM8ys6R8ITTGbIGk1exCVGLo5OCjHT8W8gy7sFeoakD3/7thJn96VmLKrJLDy88nVZ4KktBuHHZV 4njYL5pNgRoaaOheG01VJ3I8BTNqMDaeG31HGv Qc7sajGqucqwysLv9a5XW95Oxootv0a e6h2G/.../1fPoL0CGva4nZviQ==

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