adobe_flash_setup.exe

Information Technology Systems

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application adobe_flash_setup.exe by Information Technology Systems 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 file has been seen being downloaded from ex-soft.net.
Publisher:
Information Technology Systems  (signed and verified)

MD5:
9ad43f96d2c8f662a8e2c5bb26e9572e

SHA-1:
b592471002ab6c6839cafdc82b8d53316385a805

SHA-256:
3ab8b6683682804d17116c43ea24a5f558f49a9daa55826fe69e896907f6dff7

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:
1/22/2018 11:27:12 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore.Informat.Installer (M)
16.6.2.7

File size:
762.7 KB (781,048 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

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

Digital Signature
Authority:
Thawte, Inc.

Valid from:
7/31/2014 5:30:00 AM

Valid to:
8/1/2015 5:29:59 AM

Subject:
CN=Information Technology Systems, OU=IT, O=Information Technology Systems, L=Podgorica, S=Montenegro, C=ME

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
37A48261FA2BD5EDFE85E99767D8A6B8

File PE Metadata
Compilation timestamp:
6/20/1992 3:52:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:uPFagX1vpCeWzp8cBePvGPth06G05icn+4QOqIhlexUiL5mASRuVkEt69HYiIHeB:uPFjvdCpDBemVK6v64QZIXexN0Aczilu

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, BF, A9, FF, FF, E8, 5E, 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:
7.8272

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

Code size:
37 KB (37,888 bytes)

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

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