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libreoffice.exe

Covus Pro GmbH

The application libreoffice.exe by Covus Pro GmbH 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 Covus installer. The file has been seen being downloaded from downloadguidefactory.blob.core.windows.net.
Publisher:
Covus Pro GmbH  (signed and verified)

MD5:
57529b553f07140465b4e1bc3ddf8faf

SHA-1:
252892e5edb86e61d116c0d0ed6f2840d8fdc7f4

SHA-256:
3d6b1c8fb1528fde1a384f2105fbe5848011b8eff08901eb82be343c67ea2062

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Includes bundled offers in the installer/download manager that include adware components such as Best-markit, and Search Protect (ClientConnect).

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
4/26/2024 3:28:12 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Covus (M)
16.8.2.9

File size:
458.4 KB (469,432 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Covus

Language:
English (United States)

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

Digital Signature
Signed by:
Covus Pro GmbH

Authority:
VeriSign, Inc.

Valid from:
1/23/2014 1:00:00 AM

Valid to:
1/24/2016 12:59:59 AM

Subject:
CN=Covus Pro GmbH, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Covus Pro GmbH, L=Berlin, S=Berlin, C=DE

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:
249E4122D3206380E8C5DB9AFC085C73

File PE Metadata
Compilation timestamp:
6/6/2014 9:59:28 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
6144:ZqiYD1rcPt3QC/8Y5LUjUJIDaM+zTlztEtuKGdk8yF6GH8VPflPraKm33Bo0WtCc:ZYcPtTX5RYX+zZ4vuVX1Hh0WtC7uM1vA

Entry address:
0x1C994

Entry point:
E8, A0, 48, 00, 00, E9, 89, FE, FF, FF, CC, CC, 8B, 44, 24, 08, 8B, 4C, 24, 10, 0B, C8, 8B, 4C, 24, 0C, 75, 09, 8B, 44, 24, 04, F7, E1, C2, 10, 00, 53, F7, E1, 8B, D8, 8B, 44, 24, 08, F7, 64, 24, 14, 03, D8, 8B, 44, 24, 08, F7, E1, 03, D3, 5B, C2, 10, 00, 8B, FF, 55, 8B, EC, 83, EC, 20, 8B, 45, 08, 56, 57, 6A, 08, 59, BE, 0C, DE, 42, 00, 8D, 7D, E0, F3, A5, 89, 45, F8, 8B, 45, 0C, 5F, 89, 45, FC, 5E, 85, C0, 74, 0C, F6, 00, 08, 74, 07, C7, 45, F4, 00, 40, 99, 01, 8D, 45, F4, 50, FF, 75, F0, FF, 75, E4, FF...
 
[+]

Code size:
170.5 KB (174,592 bytes)

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

https://downloadguidefactory.blob.core.windows.net/downloadguides/.../libreoffice.exe

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