mahjongworld-setup.exe

Download Admin

This is the Tightrope WebInstall which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed with minimal consent. The application mahjongworld-setup.exe by Download Admin has been detected as adware by 9 anti-malware scanners. The program is a setup application that uses the Tightrope WebInstall installer. The file has been seen being downloaded from files4.freega.me and multiple other hosts.
Publisher:
Download Admin  (signed and verified)

MD5:
c14db4eaf87e08fe91f4d0d90e9941a8

SHA-1:
472c6aeaf2203dd822c324c9e1c6321d0abe01ad

SHA-256:
7363f0ede469d0d3c64544b33d3983f6cead8947d19176f94ed622a4f33c817f

Scanner detections:
9 / 68

Status:
Adware

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:
4/25/2024 7:07:45 AM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
Adware.Downware.2220
9.0.1.0257

ESET NOD32
Win32/DownloadAdmin
8.9427

herdProtect (fuzzy)
2014.9.28.1

Malwarebytes
PUP.Optional.DownloadAdmin
v2014.09.14.06

NANO AntiVirus
Trojan.Win32.Downware.crgjbr
0.28.0.57630

Reason Heuristics
PUP.Installer.DownloadAdmin.X
14.8.7.20

Rising Antivirus
PE:Malware.XPACK/RDM!5.1
23.00.65.14925

Sophos
Download Admin
4.97

VIPRE Antivirus
DownloadAdmin
26476

File size:
75.8 MB (79,453,944 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Tightrope WebInstall (using Nullsoft Install System)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\mahjongworld-setup.exe

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
3/19/2013 7:00:00 PM

Valid to:
5/29/2016 6:59:59 PM

Subject:
CN=Download Admin, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Download Admin, L=SAN FRANCISCO, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
2EEB247A8F9D63D74CE7EF9551E3D401

File PE Metadata
Compilation timestamp:
6/22/2012 1:07:51 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:MxpJgJzNGqv7K8sobvmEenOnseuE6FkhGS3piBNF:gp23jDK8R7enOnb3GBF

Entry address:
0x333B

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, B0, 73, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, C0, 70, 40, 00, 53, FF, 15, 88, 72, 40, 00, 6A, 08, A3, B8, 3C, 42, 00, E8, 2C, 25, 00, 00, 53, 68, 60, 01, 00, 00, A3, C0, 3B, 42, 00, 8D, 44, 24, 38, 50, 53, 68, 43, 74, 40, 00, FF, 15, 64, 71, 40, 00, 68, 38, 74, 40, 00, 68, C0, 33, 42, 00, E8, 1D, 24, 00, 00, FF, 15, BC, 70, 40, 00, 50, BF, 00, 90, 42, 00, 57, E8, 0B, 24, 00, 00...
 
[+]

Entropy:
0.1439

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file mahjongworld-setup.exe has been seen being distributed by the following 3 URLs.

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