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vso-downloader.exe

Des

PlatformPrompt (Alpha Criteria Ltd.)

The application vso-downloader.exe, “Des Setup ” by PlatformPrompt (Alpha Criteria) 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. The setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions. The file has been seen being downloaded from www.giftchuckleflash.com.
Publisher:
Dogosifuso   (signed by PlatformPrompt (Alpha Criteria Ltd.))

Product:
Des

Description:
Des Setup

Version:
2.6.5.0

MD5:
4a2c854a739d728e63cfbb3c6463048a

SHA-1:
b19bce3ea2bbc0210f507889ad90b03041b34d7e

SHA-256:
7f312f94f4bab2a9a0af7539a2b5e28cffa2d439985511854422dd7ac0096c6b

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:
5/1/2024 1:29:49 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.InstallCore.AC (M)
16.8.11.1

File size:
952 KB (974,848 bytes)

Product version:
3.4.8

Copyright:
Stub Web

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\vso-downloader.exe

Digital Signature
Signed by:
PlatformPrompt (Alpha Criteria Ltd.)

Authority:
GlobalSign nv-sa

Valid from:
12/16/2015 4:17:26 PM

Valid to:
9/2/2016 3:02:46 PM

Subject:
CN=PlatformPrompt (Alpha Criteria Ltd.), O=PlatformPrompt (Alpha Criteria Ltd.), L=Tel Aviv, C=IL

Issuer:
CN=GlobalSign CodeSigning CA - SHA256 - G2, O=GlobalSign nv-sa, C=BE

Serial number:
112111817CD313A533F2A76178D4452F81A6

File PE Metadata
Compilation timestamp:
6/20/1992 2:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:G7vDPwUFhDqNzcU16jVXw4VXNLnMXugux2TrhbIC:GjzwUFJqpKpVxnMXvq2TdbIC

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

Code size:
37 KB (37,888 bytes)

The file vso-downloader.exe has been seen being distributed by the following URL.

http://www.giftchuckleflash.com/7BeX5Osc6H8aAgwVnVMf58RuhOcUg9LkfHVOWNcz4VKKZKWbWzxZHX9BR9VWo4ee0eHfVX833s73AF6IBwSZFmFo7lMEJM7KMrby9qo8ouEnXrHHGMFgXGlI0YV9HeqhNPbc0MiSi3hZ8SdShQHzbfTO972bQZsaQqVYoEwM_WBloE7fUIKWS411VMXcu9eZhHqDiCvz-G1UAAGRwXmtvg9PByNDE7RBM5MAlokDbDgjPbPsc73tfAr5w0tq0a9EmJXovA4hvd8Lu79zrto_or97yrSKRDjUPyDm_y ZbnU24wkpxKhQ=

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