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install-openoffice-2.exe

Gufafu

SpeedyInstall (New Media Holdings Ltd)

The application install-openoffice-2.exe, “Gufafu Setup ” by SpeedyInstall (New Media Holdings) 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 installCore 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:
SpeedyInstall (New Media Holdings Ltd)  (signed and verified)

Product:
Gufafu

Description:
Gufafu Setup

Version:
1.7.4.0

MD5:
640a977603b5e21b825e4f40194b3e6e

SHA-1:
3e5f6f62ff45e8dd6a469cd23d87092008f55022

SHA-256:
647709475286329d1b23db1217e4416216555fe8922ef1aa7a87ea51506a75ec

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:
2/27/2025 1:50:39 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.NewMedia.NMH.Bundler (M)
16.6.29.2

File size:
976.3 KB (999,760 bytes)

Product version:
2.5.6

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\install-openoffice-2.exe

Digital Signature
Signed by:
SpeedyInstall (New Media Holdings Ltd)

Authority:
GlobalSign nv-sa

Valid from:
12/17/2015 2:29:11 PM

Valid to:
6/1/2016 5:08:50 PM

Subject:
CN=SpeedyInstall (New Media Holdings Ltd), O=SpeedyInstall (New Media Holdings Ltd), L=Tel Aviv, C=IL

Issuer:
CN=GlobalSign CodeSigning CA - SHA256 - G2, O=GlobalSign nv-sa, C=BE

Serial number:
11215EB8F08AA45D81F2E6E2508B843425D4

File PE Metadata
Compilation timestamp:
6/20/1992 12:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:tKBYvut0ptyVgRdofxNQKBV6Vg5/yn0TzapN0qMvLrjToziU:tc1iHygRdfBg5qXYrj0v

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, 53, C9, FF, FF, E8, 9A, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
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Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
37 KB (37,888 bytes)

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