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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.completefolderbase.com and multiple other hosts. While running, it connects to the Internet address os.solvefile.com on port 80 using the HTTP protocol.
Publisher:
Application   (signed by dobreprogramy sp. z o.o.)

Product:
Internet Installer

Description:
Internet Installer Setup

Version:
3.0.2.1

MD5:
ea9c06ce55c10412293fd12734e5c4d5

SHA-1:
b9f65aa423ae8376b76d4f576f6c8c6cb58b85f3

SHA-256:
36fa17ed784accfb49150d1b155f6eb37293f84e7de2cb9d260558f1a3f58520

Scanner detections:
1 / 68

Status:
Adware

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

Description:
This 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
5/6/2024 3:39:40 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore.dobreprogramyspzoo.Installer (M)
16.2.17.9

File size:
822.7 KB (842,424 bytes)

Product version:
5.8.8

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:
GlobalSign nv-sa

Valid from:
2/20/2015 4:15:48 PM

Valid to:
2/21/2016 4:15:48 PM

Subject:
CN=dobreprogramy sp. z o.o., O=dobreprogramy sp. z o.o., L=Wroclaw, C=PL

Issuer:
CN=GlobalSign CodeSigning CA - G2, O=GlobalSign nv-sa, C=BE

Serial number:
1121E43E26D353CD92710BE588FC941CCD7E

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):
24576:5dRskCE3IjmgulptgEqu44kraijqN8NTi:5E3E3IjmgKptg/9rZqW2

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 2 URLs.

http://cdn.completefolderbase.com/c?x=a9UAk3rs9Vz/m4RqImnLu1wp4jGAKN76yhPbfoXZPto=&c=2ppONhQnC8ygOs2h6VmjVA2WKJ99x17y4kS32rt5R2bmhmqR9FGTvdw4kpZAGgSqK5eZl1P0VNpFSKlTagoHXhj6Iy/ZySiASi2P9LXYawh3Vf11YJjEc15tL3IAIaQjI47iZkdbDrHrF mmVjvI g==&fallback_url=http://download.skype.com/.../SkypeSetupFull.exe&downloadAs=Skype-13018-dp.exe

http://cdn.goodpackagecounter.com/c?x=Kf thg5vASfYjXsyY7tG9CtHCq0qwGyRQU7n80DOH04=&c=qCReWWGrr8sWrhD0GP76gf8aM6kJDhE5D7oMY8qE2U9tUWY6zgXNsPPLtHoM9Qi/Q5ZDJQsQGimkQ4ZMjh4HzfcDwfcgB4idYuNdP7ytnjPjwRzA4B4lYD0AWEi0oxyrUUYi rOhVP5fpwenZRP0kA==&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)

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