cr_downloader_for_medabots-rpg---rokusho-version.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_medabots-rpg---rokusho-version.exe by eCHANG Net 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. The file has been seen being downloaded from coolrom.com.
Publisher:
eCHANG Net Inc.  (signed and verified)

MD5:
8a2f17514520d12871bac28efe0446a8

SHA-1:
f6cccd8e4a2e8b9b8f60c6af8e71d1de22e5582e

SHA-256:
1e5a156ce452ac0ae88baf8c5ce686587bf4d5153199e2d239f610aaaeaf56ba

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

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:
3/7/2017 1:07:53 AM UTC  (eight months ago)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore (M)
17.3.6.20

File size:
715.9 KB (733,096 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_medabots-rpg---rokusho-version.exe

Digital Signature
Signed by:

Authority:
COMODO CA Limited

Valid from:
3/31/2014 8:00:00 AM

Valid to:
4/1/2015 7:59:59 AM

Subject:
CN=eCHANG Net Inc., O=eCHANG Net Inc., STREET=3108 Willow Street, L=Vancouver, S=British Columbia, PostalCode=V5Z3P5, C=CA

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
0997D086DE4B5F5B73AA93E13ED58468

File PE Metadata
Compilation timestamp:
6/20/1992 6:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

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:
7.8160

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

Code size:
37 KB (37,888 bytes)

The file cr_downloader_for_medabots-rpg---rokusho-version.exe has been seen being distributed by the following URL.

http://coolrom.com/downloader.php?id=14927