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cr_downloader_for_thrasher---skate-and-destroy.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_thrasher---skate-and-destroy.exe by eCHANG Net has been detected as adware by 11 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 www.coolrom.com.
Publisher:
eCHANG Net Inc.  (signed and verified)

MD5:
67becaba219ed4ab6e1fa73913192def

SHA-1:
9e3cfe3d39471d2928f5c17e60e03dd0daae23d8

SHA-256:
201a5fb1e2ac5222ee11482c2889cbc0e010ea60ac5f03e94d9d0083aea435e3

Scanner detections:
11 / 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 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
4/25/2024 4:46:31 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.InstallCore
7.1.1

AVG
Generic
2016.0.3004

Dr.Web
Trojan.MulDrop5.38502
9.0.1.0239

ESET NOD32
Win32/InstallCore.PL potentially unwanted application
9.7.0.302.0

herdProtect (fuzzy)
variant of cr_downloader_for_visual-boy-advance.exe (Adware)
2015.8.27.13

K7 AntiVirus
Unwanted-Program
13.184.13697

Malwarebytes
PUP.Optional.InstallCore
v2015.08.27.01

NANO AntiVirus
Riskware.Win32.InstallCore.dfgovb
0.28.2.62286

Reason Heuristics
PUP.eCHANGNet.Installer (M)
15.7.25.18

VIPRE Antivirus
Threat.4786018
33120

Zillya! Antivirus
Adware.InstallCore.Win32.156
2.0.0.1930

File size:
736.9 KB (754,608 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_thrasher---skate-and-destroy.exe

Digital Signature
Signed by:
eCHANG Net Inc.

Authority:
Thawte, Inc.

Valid from:
8/11/2014 6:00:00 PM

Valid to:
8/12/2015 5:59:59 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 4:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:EwYvpHLzf7sbASxkrz17hpejDVl+cvMMjbFCBvMTjId7rWauzzv+Md9gDJdiT:EwYvtXf7s3kz1u/p39WvMXIdvRoMcT

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:
7.8354

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

Code size:
37 KB (37,888 bytes)

The file cr_downloader_for_thrasher---skate-and-destroy.exe has been seen being distributed by the following URL.

http://www.coolrom.com/downloader.php?id=40107

herdProtect is a second line of defense malware removal platform powered by 68 anti-malware engines in the cloud. Since no single anti-malware program is perfect 100% of the time, herdProtect utilizes a 'herd' of multiple engines to guarantee the widest coverage and the earliest possible detection.