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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 14 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:
92701c7ab8a52784b7255a9fbdff58a7

SHA-1:
8c42cf5dba0c255a293fa56c6b6079a29bb6d337

SHA-256:
bf22c488201035c447e37d51a90b34217b5554ed33a2ddd5c9ab2e096daddda2

Scanner detections:
14 / 68

Status:
Adware

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:
4/23/2024 7:51:00 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.Agent
7.1.1

Avira AntiVirus
ADWARE/Adware.Gen
7.11.30.172

AVG
Generic
2015.0.3352

Dr.Web
Adware.DAdmin.151
9.0.1.0257

ESET NOD32
Win32/DownloadAdmin.G potentially unwanted application
8.7.0.302.0

Fortinet FortiGate
Riskware/DownloadAdmin
9/14/2014

F-Secure
Adware:W32/WebInstallBundle
11.2014-14-09_1

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

Malwarebytes
PUP.Optional.DownloadAdmin
v2014.09.14.05

McAfee
Artemis!5726256FCFA7
5600.7008

Reason Heuristics
PUP.Installer.DownloadAdmin.CC
14.8.7.20

Sophos
Download Admin
4.98

Trend Micro House Call
Suspicious_GEN.F47V0706
7.2.257

VIPRE Antivirus
Threat.4783369
31208

File size:
75.9 MB (79,581,472 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:
6/17/2014 10:35:36 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:CxpJMyVWJ0q4kfS6wKhmcRf6vEh7+KAFgtp51idtDWEqOWtVr2/NoPH48:upanJ0ZkKIh7mFgfidtDWEn20/No

Entry address:
0x3341

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, F8, 24, 7A, 00, E8, 2C, 25, 00, 00, 53, 68, 60, 01, 00, 00, A3, 00, 24, 7A, 00, 8D, 44, 24, 38, 50, 53, 68, 43, 74, 40, 00, FF, 15, 64, 71, 40, 00, 68, 38, 74, 40, 00, 68, 00, 1C, 7A, 00, E8, 1D, 24, 00, 00, FF, 15, BC, 70, 40, 00, 50, BF, 00, 80, 7A, 00, 57, E8, 0B, 24, 00, 00...
 
[+]

Entropy:
0.1654

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file mahjonggartifacts-setup.exe has been seen being distributed by the following 4 URLs.

http://files4.freega.me/download/.../dl?s=google&c=multi2&brand=Freega.me&pid=TR&bc=10659&country=US&cb=-2134328755&zTmp=1

http://files4.freega.me/download/.../dl?s=google&c=multi2&brand=Freega.me&pid=TR&bc=10659&country=US&cb=759168170&zTmp=1

http://files4.freega.me/download/.../dl?s=google&c=multi2&brand=Freega.me&pid=TR&bc=10659&country=US&cb=-1509777103&zTmp=1

http://files5.freega.me/dl?bc=10659&geo

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