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setup_osu.exe

OSU

Installer Technology Co

The application setup_osu.exe, “Open Software Updater” has been detected as a potentially unwanted program 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 NSIS (Nullsoft Scriptable Install System) installer, however the file is not signed with an authenticode signature from a trusted source. The file has been seen being downloaded from opensoftwareupdater.com.
Publisher:
Installer Technology Co

Product:
OSU

Description:
Open Software Updater

Version:
3.0.0.0

MD5:
c7d59153e18240aaddc2b4859d988c9d

SHA-1:
865829a965f7f1fd9da3a40177349c0ad2aefc01

SHA-256:
794296f4a64b0c225838277e724ca0d5af109d587b0187d78968a4985a51367a

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
4/27/2024 1:51:46 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.InstallerTech.Installer.Meta (M)
16.6.23.16

File size:
120.2 KB (123,091 bytes)

Copyright:
Copyright Installer Technology Co. 2014

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\setup_osu.exe

File PE Metadata
Compilation timestamp:
12/5/2009 4:50:35 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
3072:9oPyys5jXJn4YYcJ2oAcJsEMK9dxHJaqGweNlLvplQ5VbeTTJc6KvR+:9zfDv1AapHJaqClLvigTCA

Entry address:
0x323F

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 30, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 98, 27, 7A, 00, E8, 09, 2C, 00, 00, A3, E4, 26, 7A, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, DC, 79, 00, FF, 15, 58, 71, 40, 00, 68, B8, 91, 40, 00, 68, E0, 1E, 7A, 00, E8, BC, 28, 00, 00, FF, 15, B0, 70, 40, 00, BF, 00, 80, 7A, 00, 50, 57, E8, AA, 28, 00, 00...
 
[+]

Entropy:
7.2941

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file setup_osu.exe has been seen being distributed by the following URL.

http://opensoftwareupdater.com/idownload.php

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