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installer_directx_spanish.exe

Salyutem Plyus LLC

This is the OutBrowse Revenyou installer which bundles offers for additional third party applications that may be unwanted and installed without consent. The application installer_directx_spanish.exe by Salyutem Plyus 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 OutBrowse Revenyou installer. The file has been seen being downloaded from download.instseo.com.
Publisher:
Salyutem Plyus LLC  (signed and verified)

MD5:
99d3e2d8d065cad63bd6f5a1c96a5921

SHA-1:
95a575c492dca578d7abb2fb9bbad59f36d78a60

SHA-256:
2939908672a5c62dd19521c7b42fe242dae4042e5ead6bdcf8db1f0e8c8ef176

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:
12/24/2024 6:49:47 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse (M)
17.3.15.8

File size:
570.1 KB (583,832 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
OutBrowse Revenyou (using Nullsoft Install System)

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

Digital Signature
Signed by:
Salyutem Plyus LLC

Authority:
thawte, Inc.

Valid from:
12/14/2014 9:00:00 PM

Valid to:
12/15/2015 8:59:59 PM

Subject:
CN=Salyutem Plyus LLC, O=Salyutem Plyus LLC, L=Kharkiv, S=Arkansas, C=UA

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
6B6BB9E1A48F64F47503D8DCF6A5D0D3

File PE Metadata
Compilation timestamp:
12/5/2009 7:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

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...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://download.instseo.com/installers/axtan_installers/get.php?aa=lp/1/seo//&u=L2Rvd25sb2FkLmluc3RzZW8uY29tL2luc3RhbGxlcnMvb3V0LzAwMTA0MDAxMDUwMDEwNi9waWlkLTAxMjM0NTY3ODk5ODc0NTYzMjEwMDEyMzQ1Njc4OTEyL2xwLzEvc2VvL3NwYW5pc2gvc2VvL2Nocm9tZS9kaXJlY3R4L2QvNzgyMTk4MDI3ZmM1MDk0YzQ3OWQzZWY5YTQzYjIyYjUvb3V0L25hL25hL2luc3RhbGxlcl9kaXJlY3R4X1NwYW5pc2guZXhl&loop=1&p=U0VP&r=3387480&x=L2hvbWUvZG93bl9jcm9ucy9wdWJsaWNfaHRtbC9pbnN0YWxsZXJzL291dC9scC8xL3Nlby9zcGFuaXNoL3Nlby9jaHJvbWUvZGlyZWN0eC9kLzc4MjE5ODAyN2ZjNTA5NGM0NzlkM2VmOWE0M2IyMmI1L291dC9uYS9uYS9pbnN0YWxsZXJfZGlyZWN0eF9TcGFuaXNoLmV4ZQ==&DE=17&AL=68&AF=26&HE=4&LA=31&CD=52&MM=9&CJ=70&EH=19&LK=100&s=9420233762874776302273904255975818841227405972512730120555142624418541381989141425548503117479811775804092917169613473785422413580061561762579430887256798930388495642729076920908733303207336185740912820512513486826257981509174166458409760019792327116266173690235086062164034276097714332791815424030347751189788569992172353996309433109317296042931259495884

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