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skype_setup.exe

Nasema

AgileMax (Alpha Criteria Ltd.)

The application skype_setup.exe, “Nasema Setup ” by AgileMax (Alpha Criteria) 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 installCore installer. The setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions. It is also typically executed from an Internet Explorer cache folder. The file has been seen being downloaded from www.toursharemega.com.
Publisher:
Kalema   (signed by AgileMax (Alpha Criteria Ltd.))

Product:
Nasema

Description:
Nasema Setup

Version:
2.8.2.6

MD5:
2900610c904a487bd367d88a786f8558

SHA-1:
deacc68c99f713251950d5a00d7615aaabc21b92

SHA-256:
631b91dc30256386225cd6ae2c0719bec0cab45252bfde388d3c6cf79642534a

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

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:
12/27/2024 9:11:24 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.InstallCore.AC.Installer (M)
16.6.28.22

File size:
937.9 KB (960,360 bytes)

Product version:
1.0.5

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\skype_setup.exe

Digital Signature
Signed by:
AgileMax (Alpha Criteria Ltd.)

Authority:
GlobalSign nv-sa

Valid from:
12/16/2015 6:20:27 AM

Valid to:
9/2/2016 5:46:46 AM

Subject:
CN=AgileMax (Alpha Criteria Ltd.), O=AgileMax (Alpha Criteria Ltd.), L=Tel Aviv, C=IL

Issuer:
CN=GlobalSign CodeSigning CA - SHA256 - G2, O=GlobalSign nv-sa, C=BE

Serial number:
1121FDBE79F75900E75EC6DA424D0A814FB0

File PE Metadata
Compilation timestamp:
6/19/1992 5:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:KnUAjCZSiAZnaknV8+xsnSo/6HWgNlUgz5gxqus1d83OJmZZ7ON6:KUmISfZBxu6HWOOgz5Fu4d297OE

Entry address:
0xA5F8

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, CE, 8A, FF, FF, E8, D5, 9C, FF, FF, E8, 64, 9F, FF, FF, E8, 07, A0, FF, FF, E8, A6, BF, FF, FF, E8, 11, E9, FF, FF, E8, 78, EA, FF, FF, 33, C0, 55, 68, C9, AC, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 92, AC, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 26, F5, FF, FF, E8, 11, F1, FF, FF, 80, 3D, 34, B2, 40, 00, 00, 74, 0C, E8, 23, F6, FF, FF, 33, C0, E8, C4, 97, FF, FF, 8D, 55, F0, 33, C0, E8, B6, C5, FF, FF, 8B, 55...
 
[+]

Entropy:
7.9363

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
39.5 KB (40,448 bytes)

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

http://www.toursharemega.com/c?x=fZYAwgYZsU45oqExx/WbYwWP0iIdz4seQSRw0dTAwfY=&c=n43RBsqs6/.../Ih8uy10JUrdIO M5o7ttW19H8t2x6vMsISOl1ykpjo0XhJPsw0bh1fgCfgSLUvO&downloadAs=Skype_Setup.exe

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