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mahjonggartifacts-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 mahjonggartifacts-setup.exe by Download Admin has been detected as adware by 11 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:
a3d1e1ca1592d5be773a4373758b2338

SHA-1:
505fc9a9d0de05cefdd95efb0dcdf8ad25037a14

SHA-256:
c425a71fdbaf4136321113e45a70d8bbdb21799916c65594947335ac37a2e535

Scanner detections:
11 / 68

Status:
Adware

Explanation:
May bundle various unwanted software without adequate user consent.

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:
11/25/2024 12:42:01 AM UTC  (today)

Scan engine
Detection
Engine version

AhnLab V3 Security
PUP/Win32.Downloader
14.09.14

AVG
MultiBundle
2015.0.3352

Dr.Web
Adware.Downware.2220
9.0.1.0257

ESET NOD32
Win32/DownloadAdmin
8.9190

herdProtect (fuzzy)
variant of vlcmediaplayer-setup.exe (Adware)
2014.9.27.23

Malwarebytes
PUP.Optional.DownloadAdmin
v2014.09.14.04

NANO AntiVirus
Trojan.Win32.Downware.crgjbr
0.28.0.59492

Reason Heuristics
PUP.Installer.DownloadAdmin.CC
14.8.7.20

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

Sophos
Download Admin
4.96

VIPRE Antivirus
DownloadAdmin
24526

File size:
75.8 MB (79,448,464 bytes)

File type:
Executable application (Win32 EXE)

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

Language:
Language Neutral

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

Digital Signature
Signed by:
Download Admin

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:HxpJEQZiC2cO/Yms/fn+Z24zFwmG/m0tzobz0Nv1aZuhPVZK+Oyu2A93R8F:Rpa/c3R/PlKgQboNoZyS+tuN92

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:
0.1429

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file mahjonggartifacts-setup.exe has been seen being distributed by the following 5 URLs.

http://files4.freega.me/download/.../dl?s=google&c=single1&brand=Freega.me&pid=TR&bc=13614&country=US&cb=465240903

http://files4.freega.me/download/.../dl?s=google&c=single1&brand=Freega.me&pid=TR&bc=13614&country=US&cb=634670555

http://files4.freega.me/download/.../dl?s=google&c=single1&brand=Freega.me&pid=TR&bc=13614&country=US&cb=1211686125

http://files4.freega.me/download/.../dl?s=google&c=single1&brand=Freega.me&pid=TR&bc=13614&country=US&cb=1295824689

http://files5.freega.me/dl?bc=13614&geo

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