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webinstaller.exe

JDownloader2 (BETA)

Appwork GmbH

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application webinstaller.exe, “JDownloader2 (BETA) Setup for Windows” by Appwork GmbH has been detected as a potentially unwanted program by 2 anti-malware scanners. The program is a setup application that uses the installCore installer. While running, it connects to the Internet address installer.jdownloader.org on port 80 using the HTTP protocol.
Publisher:
Appwork GmbH  (signed and verified)

Product:
JDownloader2 (BETA)

Description:
JDownloader2 (BETA) Setup for Windows

Version:
2.0.0.2

MD5:
58d300bc732b9b305cc5c015a3b025cf

SHA-1:
032bb8f05c7a6b73ceb3aacc9653ccad56a01083

SHA-256:
08b9f7a334e2ae3e804350d779f75331cb7d9be737bc0f7f85126ef2e4ba1400

Scanner detections:
2 / 68

Status:
Potentially unwanted

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:
12/29/2024 8:14:38 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Installer.AppworkGmbH.M
14.12.11.18

Vba32 AntiVirus
suspected of Trojan.Downloader.gen.h
3.12.26.3

File size:
74.7 KB (76,504 bytes)

Product version:
2.0.0.2

Copyright:
AppWork GmbH

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Nullsoft Install System)

Language:
English (United States)

Common path:
C:\users\{user}\downloads\programs\webinstaller.exe

Digital Signature
Signed by:
Appwork GmbH

Authority:
Thawte, Inc.

Valid from:
8/15/2014 2:00:00 AM

Valid to:
8/16/2015 1:59:59 AM

Subject:
CN=Appwork GmbH, O=Appwork GmbH, L=Fürth, S=Bayern, C=DE

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
0091626FD168636EDD78A174E8B75DAC

File PE Metadata
Compilation timestamp:
12/25/2013 6:01:35 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
1536:mwDJZGrZopISbAoR8BXJXD9R9lFBtRThFT6o87hB8EV9JLC5V:3DJ0rZo6StCBXJ57BtNy97r8E3JL+

Entry address:
0x3219

Entry point:
81, EC, 84, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 30, 91, 40, 00, 89, 5C, 24, 20, C6, 44, 24, 14, 20, FF, 15, 34, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 70, 40, 00, 53, FF, 15, 8C, 72, 40, 00, 6A, 08, A3, 98, 37, 42, 00, E8, AD, 2D, 00, 00, A3, E4, 36, 42, 00, 53, 8D, 44, 24, 38, 68, 60, 01, 00, 00, 50, 53, 68, A0, EC, 41, 00, FF, 15, 64, 71, 40, 00, 68, E4, 91, 40, 00, 68, E0, 2E, 42, 00, E8, 57, 2A, 00, 00, FF, 15, B0, 70, 40, 00, BD, 00, 90, 42, 00, 50, 55, E8, 45, 2A...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file webinstaller.exe has been seen being distributed by the following 21 URLs.

blob:E6B0DA45-9730-4F78-A8EC-642756AA07C8

blob:728203CD-238A-4691-A34C-E3D9B57832A3

https://o2.fiuxy.net/.../JDownloader2_Clean_Installer.exe

https://mega.nz/temporary/.../h0N1xCYS

blob:264C955E-B5FA-4E8A-9210-1010686D4871

http://dl1.jetelecharge.com/up/P0EQPa1vvG/.../jdownloader-2409-jetelecharge.exe

blob:8D6EF5A9-6CE8-43FE-AED7-0C420FC64F3C

blob:000C625C-3588-4A30-8A0A-EE9173BF738E

temp:WebInstaller_adfree_2016_1.exe

blob:FD71E6CA-2FAB-403D-BFF6-0E8969F12E37

blob:02A42F95-CA6A-4EA5-9715-CDE3162996D7

temp:JDownloader2_Clean_Installer.exe

chrome-extension://bigefpfhnfcobdlfbedofhhaibnlghod/persistent/.../bYkC0YDT

blob:54AB0DBC-C728-49AE-A7AC-7030B9B7FA37

http://o2.fiuxy.net/.../JDownloader2_Clean_Installer.exe

https://mega.nz/persistent/.../bYkC0YDT

http://privatelink.de/forward/?http://.../WebInstallerJD2_c.exe

https://mega.nz/temporary/.../bYkC0YDT

http://dl.cdn.chip.de/downloads/.../WebInstaller_adfree_2016_1.exe

http://jdownloader.org/.../dl2.php?v=1

http://installer.jdownloader.org/WebInstallerJD2_c.exe

The executing file has been seen to make the following network communication in live environments.

TCP (HTTP):
Connects to installer.jdownloader.org  (85.131.130.148:80)

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