openofficewriter-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 openofficewriter-setup.exe by Download Admin has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the Tightrope WebInstall installer. The installer is marketed through download protals and search ads as the free Apache OpenOffice but will also install additional software offers which include adware, PUPs and browser toolbars.
Publisher:
Download Admin  (signed and verified)

MD5:
73b33b2bd01c7bc140df428237418ef2

SHA-1:
43c679f0b66b18787a9dc0d5992b948cdba6dede

SHA-256:
fe523e6701aa4bed509b7839ebfb187a9f9e88a110c91094c877c18525550c66

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Description:
This is an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
4/16/2024 1:54:21 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Tightrope.DownloadAdmin.Bundler (M)
16.2.9.18

File size:
621.1 KB (635,992 bytes)

File type:
Executable application (Win32 EXE)

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

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

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
6/21/2009 2:00:00 PM

Valid to:
5/30/2010 1:59:59 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 2009-2 CA, OU=Terms of use at https://www.verisign.com/rpa (c)09, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
0B3C4C63AB2E7D3D56CCC830179F66F0

File PE Metadata
Compilation timestamp:
11/20/2008 10:28:21 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:qFsOn1cnMdhFDBpo8vDGXUKdf8SWkhvKRoU:IsO1Zd/rnWdWoKaU

Entry address:
0x30E3

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 58, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 18, EC, 42, 00, E8, 23, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 90, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 4C, 91, 40, 00, 68, 60, E3, 42, 00, E8, DA, 27, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, C8, 27, 00, 00...
 
[+]

Entropy:
7.0215

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

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