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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 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:
5dfc5aec3f39a4d6e9256594d827c00d

SHA-1:
c0da730878dfaca0168024d56d9cf72ac7cbf782

SHA-256:
456e52435ceb3c0cc20cf932f28e9cc76aa22470cb0eb6fd47dfce40ccdc7612

Scanner detections:
9 / 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:
4/19/2024 7:01:22 PM UTC  (today)

Scan engine
Detection
Engine version

Dr.Web
Adware.Downware.2220
9.0.1.0218

ESET NOD32
Win32/DownloadAdmin
8.9596

herdProtect (fuzzy)
variant of 7zip-setup.exe (Adware)
2014.9.27.23

Malwarebytes
PUP.Optional.DownloadAdmin
v2014.08.06.04

NANO AntiVirus
Trojan.Win32.Downware.crgjbr
0.28.0.58720

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
4.98

VIPRE Antivirus
DownloadAdmin
27750

File size:
75.8 MB (79,454,680 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:mxpJgJzNGqv7K8sobvmEenOnseuE6FkhGS3piBN:Sp23jDK8R7enOnb3GB

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:
0.1440

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 4 URLs.

http://files4.freega.me/download/.../dl?s=google&c=single2&brand=Freega.me&pid=TR&bc=13614&country=US&cb=-434278512

http://cdn.akamai.service.downloadadmin.com/download/.../dl?s=google&c=single2&brand=Freega.me&pid=TR&bc=13614&country=US&cb=-776851066

http://files4.freega.me/download/.../dl?s=google&c=single2&brand=Freega.me&pid=TR&bc=13614&country=US&cb=-776851066

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

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