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icreinstall_wrar500pl_downloader.exe

IronPremium

The installer utilizes InstallCore which may bundle about 3-4 offers for various ad-supported toolbars, extensions and utilities. The application icreinstall_wrar500pl_downloader.exe by IronPremium 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 www.instalki.pl. While running, it connects to the Internet address os.solvefile.com on port 80 using the HTTP protocol.
Publisher:
IronPremium  (signed and verified)

MD5:
ffa16bb735d68ffd64c8e26e8d46a35d

SHA-1:
ec6340f563d5282b59c25dabb175d5b4268898c0

SHA-256:
d431324ee5512ee093df722973e4ff116286285569d3dfca8b639e05c5ec3029

Scanner detections:
1 / 68

Status:
Adware

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

Description:
This is an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
4/25/2024 10:03:58 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore.IronPremium (M)
16.2.8.12

File size:
628.8 KB (643,840 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Common path:
C:\users\{user}\appdata\local\temp\icreinstall_wrar500pl_downloader.exe

Digital Signature
Signed by:
IronPremium

Authority:
COMODO CA Limited

Valid from:
5/28/2013 2:00:00 AM

Valid to:
5/29/2014 1:59:59 AM

Subject:
CN=IronPremium, O=IronPremium, STREET=Rothschild Bv. 63, L=Tel-Aviv, S=N/A, PostalCode=65785, C=IL

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
00E93CFA28DB661F8108C7366164A2F059

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):
12288:RyMJfsG61oT54AzYEZ+YBs8925UjDmoykRR2qaQe8dvThqolzNMrIVxIvBPHcaZF:RyMJfsn1oTkEZs88xoykREKBdvDWJvB

Entry address:
0x98CC

Entry point:
55, 8B, EC, 83, C4, CC, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, FA, 97, FF, FF, E8, 01, AA, FF, FF, E8, 2C, CC, FF, FF, E8, 73, CC, FF, FF, E8, 0A, F3, FF, FF, E8, 71, F4, FF, FF, 33, C0, 55, 68, 76, 9F, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 2C, 9F, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, B0, 40, 00, E8, 9B, FE, FF, FF, E8, 26, FA, FF, FF, 8D, 55, F0, 33, C0, E8, E0, D0, FF, FF, 8B, 55, F0, B8, D8, BD, 40, 00, E8, AB, 98, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, D8, BD, 40, 00, B2, 01, B8...
 
[+]

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

Code size:
36 KB (36,864 bytes)

The file icreinstall_wrar500pl_downloader.exe has been seen being distributed by the following URL.

http://www.instalki.pl/.../get_Winrar.php

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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