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libreoffice.exe

DownloadShield

The application libreoffice.exe by DownloadShield 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 NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from www.downloadtastic.com.
Publisher:
DownloadShield  (signed and verified)

MD5:
1320ce34017a6bcc9c3ee528a309f970

SHA-1:
743c5591ec868852879ca0ca225652ac7bccba07

SHA-256:
3f3f9ff4cd749c0c6dcceee8b427931bc21e2b53670fded036f608b826d1c36d

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.

Analysis date:
12/27/2024 4:55:50 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.DownloadShield.Installer (M)
15.12.8.21

File size:
221 KB (226,280 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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

Digital Signature
Signed by:
DownloadShield

Authority:
VeriSign, Inc.

Valid from:
3/10/2013 8:00:00 PM

Valid to:
5/9/2016 7:59:59 PM

Subject:
CN=DownloadShield, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=DownloadShield, L=San Jose, 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:
309C9F4C0975E9792AECED60B8346C13

File PE Metadata
Compilation timestamp:
8/29/2014 12:10:27 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
3072:8AWEqcrBSLdma75+nmsqjsm+vI/DMhme3g46F2pd34GYV3FdRXNpWi42UQdXd:8kZedXo2jjmIbMh/w4q2pdIGQ1D9pLdN

Entry address:
0x3350

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, A8, 73, 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, B8, 3C, 42, 00, E8, 23, 25, 00, 00, 53, 68, 60, 01, 00, 00, A3, C0, 3B, 42, 00, 8D, 44, 24, 38, 50, 53, 68, 3B, 74, 40, 00, FF, 15, 58, 71, 40, 00, 68, 30, 74, 40, 00, 68, C0, 33, 42, 00, E8, 15, 24, 00, 00, FF, 15, B0, 70, 40, 00, 50, BF, 00, 90, 42, 00, 57, E8, 03, 24, 00, 00...
 
[+]

Entropy:
7.7033

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

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

http://www.downloadtastic.com/.../download

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