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cr_downloader_for_rampage---total-destruction.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_rampage---total-destruction.exe by eCHANG Net has been detected as adware by 19 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. While running, it connects to the Internet address coolrom.com on port 80 using the HTTP protocol.
Publisher:
eCHANG Net Inc.  (signed and verified)

MD5:
3f0c60345899cefa1c761457226599a5

SHA-1:
79a9639d30ce9e95f2b743c9b2ede8f1d4248c6a

SHA-256:
31fe468731dafd4df7ae383cd588dd4b200a929cd22bb9689aa191d1283d7549

Scanner detections:
19 / 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 9:12:54 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.InstallCore
7.1.1

Avira AntiVirus
ADWARE/InstallCo.rui
8.3.1.6

AVG
Generic
2016.0.3091

Bkav FE
W32.HfsAdware
1.3.0.6379

Clam AntiVirus
Win.Adware.Installcore-586
0.98/20538

Comodo Security
Application.Win32.InstallCore.DFW
22314

Dr.Web
Trojan.MulDrop5.38502
9.0.1.05190

ESET NOD32
Win32/InstallCore.PL potentially unwanted application
7.0.302.0

G Data
Win32.Application.InstallCore.CR
15.6.25

IKARUS anti.virus
AdWare.InstallCo
t3scan.1.9.2.0

K7 AntiVirus
Unwanted-Program
13.204.16105

Malwarebytes
PUP.Optional.InstallCore
v2015.06.02.07

NANO AntiVirus
Riskware.Win32.InstallCore.dfgovb
0.30.24.1636

Reason Heuristics
PUP.Installer.eCHANGNet
15.6.2.7

Sophos
PUA 'Install Core Click run software'
5.14

SUPERAntiSpyware
Trojan.Agent/Gen-Muldrop
9838

Vba32 AntiVirus
Malware-Cryptor.InstallCore.gen
3.12.26.4

VIPRE Antivirus
Threat.4150696
40552

Zillya! Antivirus
Adware.InstallCore.Win32.156
2.0.0.2201

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_rampage---total-destruction.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:RwYvpHLzf7sbASxkrz17hpejDVl+cvMMjbFCBvMTjId7rWauzzv+Md9gDJdiT:RwYvtXf7s3kz1u/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 executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to ec2-54-186-47-57.us-west-2.compute.amazonaws.com  (54.186.47.57:80)

TCP (HTTP):
Connects to ec2-52-10-224-155.us-west-2.compute.amazonaws.com  (52.10.224.155:80)

TCP (HTTP):
Connects to ec2-107-20-182-77.compute-1.amazonaws.com  (107.20.182.77:80)

TCP (HTTP):
Connects to coolrom.com  (199.231.226.44:80)

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