pdf readerinstaller.exe

Download Manager

This is part of the Air Installer, a download manager which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed with minimal consent. The application pdf readerinstaller.exe by Download Manager 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 AirInstaller Download Manager installer. The file has been seen being downloaded from www.download-free.com.
Publisher:
Download Manager  (signed and verified)

MD5:
cfd0d3ce7cbe5a466694b7f58ed20f29

SHA-1:
34d03e07d18c7dbb20ff790a87939f1b7cae6397

SHA-256:
cadb1c585998a2af78db499686c5fe2974faa9ee8913ea497221618b6ac17fe4

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:
4/24/2024 3:27:31 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software.DownloadManager.Bundler (M)
15.12.9.8

File size:
500 KB (512,016 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
AirInstaller Download Manager

Language:
Language Neutral

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

Digital Signature
Authority:
The USERTRUST Network

Valid from:
5/26/2011 7:00:00 PM

Valid to:
5/26/2012 6:59:59 PM

Subject:
CN=Download Manager, O=Download Manager, STREET=26 York Street, L=London, S=Westminster, PostalCode=W1U 6PZ, C=GB

Issuer:
CN=UTN-USERFirst-Object, OU=http://www.usertrust.com, O=The USERTRUST Network, L=Salt Lake City, S=UT, C=US

Serial number:
7A29EA7E77DAC7B65FC20ECCCB2D8A3C

File PE Metadata
Compilation timestamp:
12/5/2009 4:50:46 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:0jlGukY6iBVuH39/7Ua/xOKG58hf8z1BE7k:isukY6iBG/4a/YKHhf8zjyk

Entry address:
0x30600

Entry point:
60, BE, 00, C0, 42, 00, 8D, BE, 00, 50, FD, FF, 57, 83, CD, FF, EB, 10, 90, 90, 90, 90, 90, 90, 8A, 06, 46, 88, 07, 47, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 72, ED, B8, 01, 00, 00, 00, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, 01, DB, 73, EF, 75, 09, 8B, 1E, 83, EE, FC, 11, DB, 73, E4, 31, C9, 83, E8, 03, 72, 0D, C1, E0, 08, 8A, 06, 46, 83, F0, FF, 74, 74, 89, C5, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C9, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C9, 75, 20, 41, 01, DB, 75...
 
[+]

Entropy:
7.9954

Packer / compiler:
UPX 2.90LZMA

Code size:
20 KB (20,480 bytes)

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

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