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skypesetup.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 skypesetup.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 get.file8desktop.com.
Publisher:
Salyutem Plyus LLC  (signed and verified)

MD5:
de8b7b3a447d3b9c0494d025ec6beb7c

SHA-1:
775b914b6ade99e4418301379da012a93b43ebd0

SHA-256:
4d703495435f74235b6e08a4ed3699b2437a8487eff4a5f247c797495a2455fd

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:
4/17/2025 6:13:32 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse.Salyutem.Bundler (M)
16.4.4.13

File size:
574.4 KB (588,192 bytes)

File type:
Executable application (Win32 EXE)

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

Language:
Language Neutral

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

Digital Signature
Signed by:
Salyutem Plyus LLC

Authority:
thawte, Inc.

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

Valid to:
12/15/2015 11:59:59 AM

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 10:50:52 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:dTkePEwHLfq6AnvbHCtQDDZRj9gEoug4sBQZXyq33xSYIXQOq3:dT4M/AvbHCtsxgIgkCqZvD

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:
7.9741

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://get.file8desktop.com/DownloadManager/Get?p=18044&d=24018&l=23220&n=1&productname=Download Manager&exeurl=http://download.skype.com/f91abd10a88c144359e4c598ef9928ca/partner/.../SkypeSetup.exe&dynamicname=Skype&S=0d78ad703d906a01368a18929457994d&d1=Windows 7&d2=284729&d3=Chrome&d4=&filename=SkypeSetup

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