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instagram.exe

Instagram

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 instagram.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. It is also typically executed from an Internet Explorer cache folder. The file has been seen being downloaded from download.chdownload.eu.
Publisher:
Download Assistant  (signed and verified)

Product:
Instagram

Version:
3.0.0.156

MD5:
66d1ebb91a114b20fb423942633ecbab

SHA-1:
f0784e47ba3f7d012882cd94dc7fc2e3a8cb47ee

SHA-256:
4d4562c24532dfe90a87c7b6f75f209229531cb487290d047ae52fd479851f63

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:
11/24/2024 9:55:44 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Air Software.Download.Bundler (M)
16.6.7.7

File size:
1.1 MB (1,134,904 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\temporary internet files\content.ie5\{random}\instagram.exe

Digital Signature
Signed by:
Download Assistant

Authority:
Symantec Corporation

Valid from:
5/2/2016 7:00:00 PM

Valid to:
8/1/2017 6:59:59 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 8:21:56 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:0xGXJ7QYxQza5APCO1o15kQOapbatlgxfcYJgAn4Dnybb6hE9oKn3hrEJakG:5BQYmz1bojRgcJcMeK6hYB3hrEJakG

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:
6.9597

Developed / compiled with:
Microsoft Visual C++

Code size:
65.5 KB (67,072 bytes)

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

http://download.chdownload.eu/v2/click/31xaaho8/?affiliate_image=&d=http://cloud.bluestacks.com/api/getdownload?platform=win&filename=instagram&icon=&key=bb02dcb351bc88ee4663c71f6574148fcd639257ce29fd121a5b978200a490c1&n=Instagram&product_image=http://www.apponpc.net/.../image-installer.png&sid=app-instagram&uid=&uao=TW96aWxsYS81LjAgKFdpbmRvd3MgTlQgNi4yOyBXT1c2NCkgQXBwbGVXZWJLaXQvNTM3LjM2IChLSFRNTCwgbGlrZSBHZWNrbykgQ2hyb21lLzQ4LjAuMjU2NC4xMCBTYWZhcmkvNTM3LjM2&scid=d71446e8-2915-11e6-bef9-0401abff7701

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