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icreinstall_bestdownload-manager_com.exe

Installer

Top Scale (New Media Holdings Ltd.)

The installer utilizes InstallCore which may bundle about 3-4 offers for various ad-supported toolbars, extensions and utilities. The application icreinstall_bestdownload-manager_com.exe, “Installer Setup ” by Top Scale (New Media Holdings) 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. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from bestdownload-manager.com. While running, it connects to the Internet address os.solvefile.com on port 80 using the HTTP protocol.
Publisher:
Program   (signed by Top Scale (New Media Holdings Ltd.))

Product:
Installer

Description:
Installer Setup

Version:
1.4.5.2

MD5:
079a0c202b6f2200f9d07710b0aa2995

SHA-1:
13451cbad2a4ba248beec9c13bb7dc798bf5e0dd

SHA-256:
5a82da251f4f860cec8ca2bcb18f44c3db83cb0f548c94d087ba263e6fc43fe1

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Utilizes the InstallCore download manager that may bundle various adware-type offers.

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:
4/19/2024 2:26:36 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.NewMedia.NMH.Bundler (M)
16.4.12.7

File size:
692 KB (708,648 bytes)

Product version:
4.3.4

Copyright:
Generic Software

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Common path:
C:\users\{user}\appdata\local\temp\icreinstall_bestdownload-manager_com.exe

Digital Signature
Signed by:
Top Scale (New Media Holdings Ltd.)

Authority:
GlobalSign nv-sa

Valid from:
2/11/2015 5:01:05 PM

Valid to:
2/12/2016 5:01:05 PM

Subject:
CN=Top Scale (New Media Holdings Ltd.), O=Top Scale (New Media Holdings Ltd.), L=Tel Aviv, C=IL

Issuer:
CN=GlobalSign CodeSigning CA - G2, O=GlobalSign nv-sa, C=BE

Serial number:
1121FF0C79830A7B12BE4E698038C29DAF9A

File PE Metadata
Compilation timestamp:
6/19/1992 11:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:92nGU/D6Z8N8mOQQZZgKEnYLaHetHCUo+5oCbQbMGwo9HsvoBB+:92n5LvOQQ/g2++tH6coCbIMwi

Entry address:
0xA5F8

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, CE, 8A, FF, FF, E8, D5, 9C, FF, FF, E8, 64, 9F, FF, FF, E8, 07, A0, FF, FF, E8, A6, BF, FF, FF, E8, 11, E9, FF, FF, E8, 78, EA, FF, FF, 33, C0, 55, 68, C9, AC, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 92, AC, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 26, F5, FF, FF, E8, 11, F1, FF, FF, 80, 3D, 34, B2, 40, 00, 00, 74, 0C, E8, 23, F6, FF, FF, 33, C0, E8, C4, 97, FF, FF, 8D, 55, F0, 33, C0, E8, B6, C5, FF, FF, 8B, 55...
 
[+]

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

Code size:
39.5 KB (40,448 bytes)

The file icreinstall_bestdownload-manager_com.exe has been seen being distributed by the following URL.

http://bestdownload-manager.com/?dl=1&pi=ATi3AzCzATnyAi==&osos=VdluDrW3cw==&dr=c3aW7mcm2r0Wc32lDXimcHaWck1E dWE rLtDK5y2rgmIT1zvm2yIKiWvmREhKVzvmNjhLVTvmNBDz1lcyDjhTnmDZ0wvmNpDZ1fNzCROZC4AZCRvm5EIKiWXzC1AZndNzAyNZa=&pd=2323UENJDEx37XvlUK2l2kFj d0=&campaignId=9jn0AznRAZM4AZMq

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to os.solvefile.com  (207.189.109.121:80)

TCP (HTTP):
Connects to cdnus.solvefile.com  (207.189.109.121:80)

TCP (HTTP):
Connects to cdneu.webfilescdn.com  (65.254.40.36:80)

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