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calibre setup.exe

Calibre 2016

Download Assistant

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 calibre setup.exe by Download Assistant 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 software.softwarerotate4.com.
Publisher:
Download Assistant  (signed and verified)

Product:
Calibre 2016

Version:
3.0.0.156

MD5:
56eb5760f87a416192e1baa75ebce020

SHA-1:
ce2dc454e9b38779fef0a468d77f894f9a821966

SHA-256:
0a4f21deeba3fa3d85c350d2f2f0f9471292fabd16adb730cd915a89f74b8fd6

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 also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
12/27/2024 6:46:45 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software.Download.Bundler (M)
16.6.13.15

File size:
1.1 MB (1,143,120 bytes)

Product version:
3.0.0.156

Copyright:
(c) Download Assistant

File type:
Executable application (Win32 EXE)

Bundler/Installer:
AirInstaller Download Manager

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\calibre setup.exe

Digital Signature
Signed by:
Download Assistant

Authority:
Symantec Corporation

Valid from:
5/2/2016 8:00:00 PM

Valid to:
8/1/2017 7:59:59 PM

Subject:
CN=Download Assistant, O=Download Assistant, L=Victoria, S=British Columbia, C=CA

Issuer:
CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
088066A3A015128F544F3E16DC53BCE8

File PE Metadata
Compilation timestamp:
1/30/2013 9:21:56 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:SxGn88jC7BCrGnrJehQMugmHOqhGF4lWfUgGBnyCkEJaku1:X88jC7BCWbMugmHOqg+gGFyEJake

Entry address:
0x113BC

Entry point:
55, 8B, EC, 83, C4, A4, 53, 56, 57, 33, C0, 89, 45, C4, 89, 45, C0, 89, 45, A4, 89, 45, D0, 89, 45, C8, 89, 45, CC, 89, 45, D4, 89, 45, D8, 89, 45, EC, B8, 2C, 00, 41, 00, E8, E8, 51, FF, FF, 33, C0, 55, 68, 9E, 1A, 41, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 5A, 1A, 41, 00, 64, FF, 32, 64, 89, 22, A1, 48, 5B, 41, 00, E8, 16, D8, FF, FF, E8, 65, D3, FF, FF, 80, 3D, DC, 2A, 41, 00, 00, 74, 0C, E8, 2B, D9, FF, FF, 33, C0, E8, 80, 32, FF, FF, 8D, 55, EC, 33, C0, E8, E2, A3, FF, FF, 8B, 55, EC, B8, 50, 86...
 
[+]

Entropy:
6.9698

Developed / compiled with:
Microsoft Visual C++

Code size:
65.5 KB (67,072 bytes)

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

http://software.softwarerotate4.com/v2/click/bfvd2rty/?d=http://cdn.downloadfree2.com/software/callofduty.exe&key=098c408c300f5042cda80b64be90fdbf8073e1e52854e343bc0155c44fa357d6&sid=SoftwareDownloadr-Y-USA-callofduty-&uid=&affiliate_image=http://www.softwaredownloadr.com/.../callofduty40.png&product_image=http://www.softwaredownloadr.com/.../callofduty85.png&n=Calibre 2016&filename=Calibre Setup&done_url=&cancel_url=

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