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n0990.exe

ISfreemium

The file is a bundle distribution and utilizes the installCore download manager to distribute this potentially unwanted software. The application n0990.exe by ISfreemium has been detected as adware by 6 anti-malware scanners. 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.
Publisher:
ISfreemium  (signed and verified)

MD5:
965ed29514bf54a73cc52c9a818dc8cc

SHA-1:
4f40e6ed7adbfa0d8b86ace56373bb01f6c38540

SHA-256:
f4ed199bf30c7306eee224f1fcd025426377a0c1505e95b979f51272120e3afe

Scanner detections:
6 / 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 is an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
5/10/2024 5:21:12 AM UTC  (today)

Scan engine
Detection
Engine version

Bkav FE
W32.Clodd1f.Trojan
1.3.0.4613

Dr.Web
Trojan.Packed.24524
9.0.1.0326

ESET NOD32
Win32/InstallCore.FJ (variant)
8.9252

Reason Heuristics
PUP.ISfreemium.F
14.11.22.20

Sophos
Install Core Click run software
4.96

SUPERAntiSpyware
PUP.InstallCore/Variant
10221

File size:
769.5 KB (787,968 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Common path:
C:\users\{user}\downloads\n0990.exe

Digital Signature
Signed by:
ISfreemium

Authority:
COMODO CA Limited

Valid from:
7/2/2013 9:00:00 PM

Valid to:
7/3/2014 8:59:59 PM

Subject:
CN=ISfreemium, O=ISfreemium, STREET=63 Rothschild 63 BV, L=Tel-Aviv, S=N/A, PostalCode=65785, C=IL

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

Serial number:
009B517CAF08AA1A85822DB0CE5E9169FE

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:byMJfsGtTdpXLZYbEKpD/K9ILImJzTShr7eBMfZYKiUcnCdqd:byMJfsOTdxLeL9RLU97+2iLCd

Entry address:
0x98CC

Entry point:
55, 8B, EC, 83, C4, CC, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, FA, 97, FF, FF, E8, 01, AA, FF, FF, E8, 2C, CC, FF, FF, E8, 73, CC, FF, FF, E8, 0A, F3, FF, FF, E8, 71, F4, FF, FF, 33, C0, 55, 68, 76, 9F, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 2C, 9F, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, B0, 40, 00, E8, 9B, FE, FF, FF, E8, 26, FA, FF, FF, 8D, 55, F0, 33, C0, E8, E0, D0, FF, FF, 8B, 55, F0, B8, D8, BD, 40, 00, E8, AB, 98, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, D8, BD, 40, 00, B2, 01, B8...
 
[+]

Entropy:
7.8054

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

Code size:
36 KB (36,864 bytes)

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