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mediafire_downloader.exe

The application mediafire_downloader.exe has been detected as a potentially unwanted program by 2 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer, however the file is not signed with an authenticode signature from a trusted source. The setup routine uses the RevenYou.Com Pay Per Install platform (OutBrowse) which bundles additional software offers inclduing toolbars, extensions, PC utilities as well as other PUPs. The file has been seen being downloaded from get.down2desk.com.
MD5:
5f9275b98c3e9959b847681afa8c12a5

SHA-1:
890a41cc12420423c77500262aff4a93a8f31ba5

SHA-256:
9a710e7b91cbd13abe5f789c7e48d48940fdb0821690b37b7d03cbe153e26081

Scanner detections:
2 / 68

Status:
Potentially unwanted

Explanation:
Bundles additional adware offers during download and installation using the OutBrowse installer.

Analysis date:
4/26/2024 5:06:45 AM UTC  (today)

Scan engine
Detection
Engine version

ESET NOD32
Win32/OutBrowse.G potentially unwanted application
8.0.319.0

Microsoft Security Essentials
Threat.Undefined
1.225.1506.0

File size:
966.1 KB (989,319 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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

File PE Metadata
Compilation timestamp:
12/6/2009 1:50:52 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
24576:q2otnqUABc227+aoloS07p+V0ahIDiZlj9zWKwE6BZ72:9oZqrBcH7+aqoSggSahQiZ1FZwpZ72

Entry address:
0x30FA

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9252

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://get.down2desk.com/.../Get?p=1831&d=8119&l=7640&n=1&productname=MediaFire_Downloader&d2=3&dynamicname=MediaFire_Downloader&filename=MediaFire_Downloader

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