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adobe_flash_setup.exe

OOO TehSnab

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 OOO TehSnab has been detected as adware by 12 anti-malware scanners. The program is a setup application that uses the installCore installer. The setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions. The file has been seen being downloaded from software-master.net.
Publisher:
OOO TehSnab  (signed and verified)

MD5:
1e1c989c1c19c801edd4728d75aac06c

SHA-1:
36e4948d5e36ae330f9b9c7eec92d0649cab39ed

SHA-256:
6875abe69a1696c069b626b9516fa65c4807ac4551e57d281f0afcedf70f3169

Scanner detections:
12 / 68

Status:
Adware

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

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:
5/16/2024 8:36:05 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.InstallCore
7.1.1

Avira AntiVirus
Adware/InstallCore.rfaw
7.11.206.26

AVG
Generic11_c
2016.0.3213

Comodo Security
Application.Win32.InstallCore.RFAW
20904

Dr.Web
Trojan.InstallCore.38
9.0.1.05190

ESET NOD32
Win32/InstallCore.QF potentially unwanted application
7.0.302.0

K7 AntiVirus
Trojan
13.193.14817

Malwarebytes
PUP.Optional.TehSnab
v2015.01.30.06

NANO AntiVirus
Riskware.Win32.InstallCore.dmfojt
0.30.0.65070

Reason Heuristics
PUP.Bundler.installCore
15.3.18.1

Total Defense
Win32/Tnega.JbTPVR
37.0.11411

VIPRE Antivirus
Threat.4150696
36694

File size:
877.5 KB (898,600 bytes)

Product version:
1.5

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
Signed by:
OOO TehSnab

Authority:
Thawte, Inc.

Valid from:
10/7/2014 8:00:00 PM

Valid to:
10/8/2015 7:59:59 PM

Subject:
CN=OOO TehSnab, O=OOO TehSnab, L=Moscow, S=Moscow, C=RU

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

Serial number:
1B3AE09C419260E223EA4701F7A75ECE

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

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:4FYEG6p1agGmDmkhB92B3gdiSUy4lvy2iPYHA2:4SJe1EmDmkh2VoiSUv1XHR

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:
7.7125

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.

http://software-master.net/download.php?conversion_id=14150594136727&site_id=475&app_id=4&lp_id=526&v=ico&stub_id=26&dist_id=381&channel=ac_f92&c=e4833361854fe51c566cf98d17a205c0&cid=18002259061415059403&pubid=335120

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