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icreinstall_winrarsetup.exe

Dika

The installer utilizes InstallCore which may bundle about 3-4 offers for various ad-supported toolbars, extensions and utilities. The application icreinstall_winrarsetup.exe, “Dika Setup ” 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, however the file is not signed with an authenticode signature from a trusted source. The setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions. With this installer, users are expecting to download WinRAR archiver but before that occurs they may be presented with additional offers, mostly potentially unwanted software or adware.
Product:
Dika

Description:
Dika Setup

MD5:
446573b8e09427fdb2ae72636394f2ad

SHA-1:
fa8963f040898f9538a9c06a4b7cc66f51c5dab1

SHA-256:
effb4114129cca79613250e2c38245fab7f4f08043e26f01ba85dd1a62830fd1

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

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:
11/5/2024 6:56:53 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.InstallCore.RE.Installer (M)
16.5.3.13

File size:
895.2 KB (916,646 bytes)

Product version:
4.2

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

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

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

CTPH (ssdeep):
12288:/CRpfKvw4N2K09ACaZUNO3SC2DnfAloijZKF0G2ZrHWu0qXDPXn8vj:/CRNKvwCYaZ2k2Df8ocZC0NZjGkD/nSj

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, 53, C9, FF, FF, E8, 9A, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

Entropy:
7.9363

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

Code size:
37 KB (37,888 bytes)

The file icreinstall_winrarsetup.exe has been seen being distributed by the following 2 URLs.

http://www.bundleguardbundle.com/c?x=PmfDq7F4J9BOCSQtNJ1s/7TmUDacD78LB4gsV2KBYmU=&c=kHvuv7PUovgY fzBNwK6VfjZDNhoR5iz/rVe4UbiDsVoskpjN jAnAWZYsVBWZ I0dKEvEShgjL7NeIMpUf77R AgjurT J/TNkDOoU kaWuxy2R207KT8MOt9kwvcvv&downloadAs=WinRARSetup.exe&fallback_url=http://allmyapps.com/binary/1410/.../direct-download?token=90c4f1d505d730885cc98010575156fddefdb54b

http://www.bundleguardbundle.com/c?x=OKeWBWgIttPMastW9jmaOl8vag9jzPJqJa7LbStZ9Ak=&c=2j3C91wfp8B6KTcxYnjag1Tx coB5sEsFnDbyjaDmwpvn54uixxPb KxQ5v3SgsKycKsQh ggGzci0muf2F4sk1JRxSJxDu PGX8dmBp8GIB5QZVxcMIVgI3hmDoBfH &downloadAs=WinRARSetup.exe&fallback_url=http://allmyapps.com/binary/1410/.../direct-download?token=90c4f1d505d730885cc98010575156fddefdb54b

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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