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skype-6-16-0-105-32-bits.exe

Binstall

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application skype-6-16-0-105-32-bits.exe by Binstall 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 file has been seen being downloaded from gerenciador.nzs.com.br.
Publisher:
Binstall  (signed and verified)

MD5:
78806537f1ecc78be20f83cc1a1406fb

SHA-1:
cc8941fa860bc588f12a7b3d8b31777b139f0ed7

SHA-256:
3602ee4b85d8a758d5d2a15f567eb2e1d2c9352fa5c1245bd0b2f5cf96e091b0

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:
4/16/2024 7:15:02 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore (M)
16.8.8.7

File size:
662.5 KB (678,392 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\skype-6-16-0-105-32-bits.exe

Digital Signature
Signed by:
Binstall

Authority:
COMODO CA Limited

Valid from:
4/1/2014 9:00:00 PM

Valid to:
4/2/2015 8:59:59 PM

Subject:
CN=Binstall, O=Binstall, STREET=28A Lillienblam St., L=Tel-Aviv, S=Israel, PostalCode=651307, C=IL

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
4B4230E5D4B938682211D3827938DB9C

File PE Metadata
Compilation timestamp:
6/19/1992 7:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:V/vpCS7ygYUjOvQ9aMs8IVIMSvyxsEH8+zFbaGXlZ3F/1ys20VqhKQnUAEE:V/vASfXHaMs8KIzKbHPe8Iq8hFZ

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, 53, C9, FF, FF, E8, 9A, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

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

Code size:
37 KB (37,888 bytes)

The file skype-6-16-0-105-32-bits.exe has been seen being distributed by the following URL.

http://gerenciador.nzs.com.br/programas/urls/iron/.../skype-2-410261.exe

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