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cr_downloader_for_dolphin.exe

eCHANG Net Inc.

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application cr_downloader_for_dolphin.exe by eCHANG Net has been detected as adware by 13 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 coolrom.com.
Publisher:
eCHANG Net Inc.  (signed and verified)

MD5:
8893ca8a1f550b41ca082fcdaebe57fe

SHA-1:
2a33f6b37e23e6aaeed77f2b14439fea085a2c75

SHA-256:
9a79fba5aa1bcc68ec8a60c0978b7c23f160caffe7ee7305841e54bc4d10ddbb

Scanner detections:
13 / 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 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:
4/26/2024 4:29:18 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.InstallCore
7.1.1

Avira AntiVirus
Adware/InstallCore.QH.9
7.11.173.16

AVG
Generic
2015.0.3348

Comodo Security
Application.Win32.Installcore.QH
19546

Dr.Web
Trojan.Packed.28576
9.0.1.0260

ESET NOD32
Win32/InstallCore.QH (variant)
8.10370

herdProtect (fuzzy)
variant of icreinstall_cr_downloader_for_resident-evil-2.exe (Adware)
2014.11.22.6

K7 AntiVirus
Trojan
13.183.13407

Kaspersky
not-a-virus:AdWare.Win32.InstallCore
15.0.0.494

Malwarebytes
PUP.Optional.InstallCore
v2014.09.17.08

nProtect
Trojan-Clicker/W32.InstallCore.757136
14.09.17.01

Reason Heuristics
PUP.eCHANGNet.Z
14.9.17.18

Zillya! Antivirus
Adware.InstallCore.Win32.263
2.0.0.1926

File size:
739.4 KB (757,136 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\cr_downloader_for_dolphin.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:LnFaiMETAw2JZICdNJ+Q6ybpMZPF/q8+X6hAZS6hSasq:LnFvMyANJZrXI/ybpMZDe6hAXSasq

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:
7.8317

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

Code size:
37 KB (37,888 bytes)

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

http://coolrom.com/downloader.php?id=1&emu=nm

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