icreinstall_apache-openoffice.exe

Ledasemi

Sivensys SRL

The installer utilizes InstallCore which may bundle about 3-4 offers for various ad-supported toolbars, extensions and utilities. The executable icreinstall_apache-openoffice.exe, “Ledasemi Setup ” has been detected as malware by 1 anti-virus scanner. The program is a setup application that uses the installCore installer. With this installer, users are expecting to download the free Apache OpenOffice but before that occurs they may be presented with additional offers, mostly potentially unwanted software or adware.
Publisher:
Sivensys SRL  (signed and verified)

Product:
Ledasemi

Description:
Ledasemi Setup

Version:
1.2.2.8

MD5:
2fe1ee72f30a9301a3136d34970024fe

SHA-1:
3e9f582d3b949bebb058ee623d43ef59494fecd5

SHA-256:
be8e73ffd316a7a67b07bc7978601bf4a990526107959400244b19af993f268c

Scanner detections:
1 / 68

Status:
Malware

Explanation:
Utilizes the InstallCore download manager that may bundle various adware-type offers.

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:
9/29/2020 9:57:27 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
17.3.16.13

File size:
1.3 MB (1,405,704 bytes)

Product version:
4.4

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\appdata\local\temp\icreinstall_apache-openoffice.exe

Digital Signature
Signed by:

Authority:
GlobalSign nv-sa

Valid from:
10/20/2016 4:04:57 AM

Valid to:
10/21/2017 4:04:57 AM

Subject:
CN=Sivensys SRL, O=Sivensys SRL, L=IASI, C=RO

Issuer:
CN=GlobalSign CodeSigning CA - SHA256 - G3, O=GlobalSign nv-sa, C=BE

Serial number:
0D38E905F0B0BA5733036DFB

File PE Metadata
Compilation timestamp:
6/19/1992 6:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

Entry address:
0xA5F8

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, CE, 8A, FF, FF, E8, D5, 9C, FF, FF, E8, 64, 9F, FF, FF, E8, 07, A0, FF, FF, E8, A6, BF, FF, FF, E8, 11, E9, FF, FF, E8, 78, EA, FF, FF, 33, C0, 55, 68, C9, AC, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 92, AC, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 26, F5, FF, FF, E8, 11, F1, FF, FF, 80, 3D, 34, B2, 40, 00, 00, 74, 0C, E8, 23, F6, FF, FF, 33, C0, E8, C4, 97, FF, FF, 8D, 55, F0, 33, C0, E8, B6, C5, FF, FF, 8B, 55...
 
[+]

Entropy:
7.9870

Packer / compiler:
Inno Setup v5.x - Installer Maker

Code size:
39.5 KB (40,448 bytes)

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to os.solvefile.com  (207.189.109.121:80)

TCP (HTTP):
Connects to cdnus.solvefile.com  (207.189.109.121:80)

TCP (HTTP):
Connects to cdneu.webfilescdn.com  (65.254.40.36:80)

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