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icreinstall_cr_downloader_for_sonic-the-hedgehog.exe

eCHANG Net Inc.

The installer utilizes InstallCore which may bundle about 3-4 offers for various ad-supported toolbars, extensions and utilities. The application icreinstall_cr_downloader_for_sonic-the-hedgehog.exe by eCHANG Net has been detected as adware by 3 anti-malware scanners. The program is a setup application that uses the installCore installer. The setup program uses the InstallCore monetization download manager to download additional third party applications that may be unwanted by the user. It is also typically executed from the user's temporary directory. While running, it connects to the Internet address os.solvefile.com on port 80 using the HTTP protocol.
Publisher:
eCHANG Net Inc.  (signed and verified)

MD5:
4050a29f584b75ce56e9be336a23ae44

SHA-1:
3c18a036ecaa468f47ba8859956bb020e6d9651b

SHA-256:
a9a1f649552ed055a513a9c4baf7d62fa805083a15fe79a012ed9c2ae01168f7

Scanner detections:
3 / 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:
4/29/2024 8:04:13 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.eCHANGNet.q
14.12.7.5

Sophos
PUA 'Install Core Click run software'
5.08

VIPRE Antivirus
Threat.4786018
35418

File size:
768.5 KB (786,928 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}\appdata\local\temp\icreinstall_cr_downloader_for_sonic-the-hedgehog.exe

Digital Signature
Signed by:
eCHANG Net Inc.

Authority:
Thawte, Inc.

Valid from:
8/11/2014 8:00:00 PM

Valid to:
8/12/2015 7:59:59 PM

Subject:
CN=eCHANG Net Inc., OU=IT, O=eCHANG Net Inc., L=Vancouver, S=British Columbia, C=CA

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

Serial number:
5EED2F2FB7AE7CF93BB2E11ECC2F164F

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):
12288:Y0FaesHHrul9P5ydFlv6KtaJf9hcC5yQ0LEPT78B0OSCSh7fiPCbeg4:Y0FvsHHruFydvVtaJF5yQ9DE+fhl4

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:
7.8416

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

Code size:
37 KB (37,888 bytes)

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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