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adobe-reader.exe

Extended Setup

The file is a bundle distribution and utilizes the installCore download manager to distribute this potentially unwanted software. The application adobe-reader.exe by Extended Setup 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 installer is marketed through download protals and search ads as Adobe's free Reader but will also install additional software offers which include adware, PUPs and browser toolbars.
Publisher:
Extended Setup  (signed and verified)

MD5:
6b4b293a6210a48f1af73016a0e8ac65

SHA-1:
8d949f1af628350ebc0c99876d73e73bba2e186a

SHA-256:
143e93dad6473bc7a4093d8f3ae0aaaa752e83361ccaa34f871d43f1f78e4f9a

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 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:
4/26/2024 11:02:31 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore.ExtendedSetup (M)
16.3.3.10

File size:
609.5 KB (624,120 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\adobe-reader.exe

Digital Signature
Signed by:
Extended Setup

Authority:
COMODO CA Limited

Valid from:
10/21/2013 5:00:00 PM

Valid to:
10/22/2014 4:59:59 PM

Subject:
CN=Extended Setup, O=Extended Setup, STREET=Lilienblum 28, L=Tel Aviv, S=Israel, PostalCode=6513307, C=IL

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

Serial number:
00DC2A1D7B17450E779685BAA191188498

File PE Metadata
Compilation timestamp:
6/19/1992 3:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:PvpNGlg+kXH76+g7SxzsnSjfAPRfYg9WxXqnkNu0cNRe/4cT/HjPSABwQW:PvWu+MRVxzOSLCNYAWxXq2mReZ/Hw

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...
 
[+]

Entropy:
7.7292

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

Code size:
37 KB (37,888 bytes)

The file adobe-reader.exe has been seen being distributed by the following URL.

http://www.download4win.org/en/downloads/.../Adobe-Reader.exe

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