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icreinstall_skype-13018-dp.exe

Internet installer

dobreprogramy sp. z o.o.

The installer utilizes InstallCore which may bundle about 3-4 offers for various ad-supported toolbars, extensions and utilities. The application icreinstall_skype-13018-dp.exe, “Internet installer Setup ” by dobreprogramy sp. z o.o 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. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from cdn.dobreprogramypltourcontent.com. While running, it connects to the Internet address os.solvefile.com on port 80 using the HTTP protocol.
Publisher:
Web Installer generic   (signed by dobreprogramy sp. z o.o.)

Product:
Internet installer

Description:
Internet installer Setup

MD5:
60ce29d111f0a6c0f3f3aa407463e643

SHA-1:
e411a51c5c17b772b6036f1ac04f2d28b0c3cf29

SHA-256:
26a80849e9f269167d0e0bdfdc46e3cabfc891dd2b5c027de43dda6a5961268d

Scanner detections:
1 / 68

Status:
Adware

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:
11/27/2024 4:31:33 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore.dobreprogramyspzoo.Installer (M)
16.2.13.14

File size:
846.4 KB (866,744 bytes)

Product version:
2.0.6

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Common path:
C:\users\{user}\appdata\local\temp\icreinstall_skype-13018-dp.exe

Digital Signature
Signed by:
dobreprogramy sp. z o.o.

Authority:
thawte, Inc.

Valid from:
2/25/2015 1:00:00 AM

Valid to:
2/26/2016 12:59:59 AM

Subject:
CN=dobreprogramy sp. z o.o., OU=IT, O=dobreprogramy sp. z o.o., L=Wroclaw, S=Dolnoslaskie, C=PL

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
04CCACE3AEB4566AFA610407D3C9D967

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):
24576:9EIue+LAYj8URLR+lhbRCUKwSsid8GVMdvBGx8NTWC:9TyLAYrRLWRCUBSBVMdvh6C

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...
 
[+]

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

Code size:
39.5 KB (40,448 bytes)

The file icreinstall_skype-13018-dp.exe has been seen being distributed by the following URL.

http://cdn.dobreprogramypltourcontent.com/c?x=eaZllkozPT6Vy8wmshCemhl68s2g8W1YqEtF//5Hi40=&c=ppSIoGysBn1pCotB2c mZf6MxrZvdL8iK2aIUXtAZhrB7ZGckmSz2qXe8GQRX6/vBd2YpgI7gbTR1bQ92ouTK4fPscxhGORw/4XwefGmlAgjXoJAHZOzBWcb85CPfKJHrYf2vh8LRe XC0bFu5pgntPHgr/xh6hCYllqy LtoyM=&fallback_url=http://download.skype.com/.../SkypeSetupFull.exe&downloadAs=Skype-13018-dp.exe

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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