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skype_dsetup.exe

Skype

Firseria

The setup program uses the Firseria/Solimba AppInstaller (DownloadMR) which is a monetization download manager that bundles additional adware offers, typically by wrapping legitimate applications. The application skype_dsetup.exe by Firseria 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 Solimba DownloadMR installer. The installer uses the Solimba download manager to push adware offers during the download and setup process. Bundled adware includes search and shopping web browser toolbars.
Publisher:
Firseria  (signed and verified)

Product:
Skype

Description:
Skype setup

Version:
1.0.11.0

MD5:
4513456fed4112536673c45a62f35b55

SHA-1:
aec11cac6d175abb0121a606f912d5670d689e7f

SHA-256:
85ecd3849d7bdbcd4bdaa66ac47e6b4225ca36fcf668f8ef8b8528ad890f2795

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Uses the Solimba installer to bundle adware offers.

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:
4/19/2024 10:22:33 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Solimba.Firseria.Bundler (M)
16.7.7.1

File size:
358.2 KB (366,784 bytes)

Copyright:
AppInstaller 2014 (141240329)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Solimba DownloadMR

Language:
Language Neutral

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

Digital Signature
Signed by:
Firseria

Authority:
GlobalSign nv-sa

Valid from:
11/11/2013 10:34:44 PM

Valid to:
11/12/2014 10:34:44 PM

Subject:
E=support@solimba.com, CN=Firseria, O=Firseria, L=Badalona, S=Barcelona, C=ES

Issuer:
CN=GlobalSign CodeSigning CA - G2, O=GlobalSign nv-sa, C=BE

Serial number:
112130C3B28D7C9C29B8B07321EF3F8A1462

File PE Metadata
Compilation timestamp:
2/19/2012 10:01:49 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.22

CTPH (ssdeep):
6144:NsaocyLCMj+p7zJTwJVtjbx78VroCvTxFQcjhsX9/lTDl8Jq5DDb1:NtobbjGEVdbG5/TpY9/lT+45DDb1

Entry address:
0x4327

Entry point:
55, 89, E5, 57, 56, 53, 81, EC, AC, 01, 00, 00, FF, 15, 74, 93, 42, 00, C7, 04, 24, 01, 80, 00, 00, FF, 15, 58, 94, 42, 00, 53, C7, 04, 24, 00, 00, 00, 00, FF, 15, 98, 94, 42, 00, 56, A3, 40, 7B, 42, 00, C7, 04, 24, 08, 00, 00, 00, E8, 8D, 3B, 00, 00, A3, 9C, 7B, 42, 00, 8D, 85, 84, FE, FF, FF, 57, C7, 44, 24, 10, 00, 00, 00, 00, C7, 44, 24, 0C, 60, 01, 00, 00, 89, 44, 24, 08, C7, 44, 24, 04, 00, 00, 00, 00, C7, 04, 24, 01, B3, 40, 00, FF, 15, AC, 94, 42, 00, 83, EC, 14, C7, 44, 24, 04, 02, B3, 40, 00, C7...
 
[+]

Entropy:
7.8420  (probably packed)

Code size:
34.5 KB (35,328 bytes)

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

http://files.downloadsmart.net/i/042315/x4939/.../skype_dsetup.exe

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