skypesetup.exe

TiKi TaKa

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 TiKi TaKa 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:
TiKi TaKa  (signed and verified)

MD5:
e53ada4638d7af0ecb4f09190b2b38ca

SHA-1:
01539c75eb059cf40c9b75fde5cf0f6f0d08351c

SHA-256:
38729646648b8f1b501eb5a1531f8f21060b512a74307d61e94ad054eee5f576

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 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
1/11/2025 10:04:08 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Outbrowse (M)
17.1.12.7

File size:
572.4 KB (586,160 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:

Authority:
thawte, Inc.

Valid from:
1/16/2015 7:00:00 PM

Valid to:
12/17/2015 6:59:59 PM

Subject:
CN=TiKi TaKa, O=TiKi TaKa, L=Dublin, S=Dublin, C=IE

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

Serial number:
3487E38E20A9221880B21663DD3A995D

File PE Metadata
Compilation timestamp:
12/5/2009 5:50:52 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...
 
[+]

Entropy:
7.9702

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=os[Windows 7]__browser[Chrome]&d2=284729&filename=SkypeSetup

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