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webinstaller.exe

JDownloader

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, “JDownloader Setup for Windows” by AppWork GmbH has been detected as a potentially unwanted program by 3 anti-malware scanners. The program is a setup application that uses the installCore installer. The file has been seen being downloaded from es.kioskea.net and multiple other hosts. 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:
JDownloader

Description:
JDownloader Setup for Windows

Version:
2.0.0.2

MD5:
c82c456d3fddbbb5d12fc2bbea17d62b

SHA-1:
267a8528af191c58d5021057f711bc2508024dff

SHA-256:
80f73df58b672a2071a43dee0761a95bc4314d0b1abe74b6cffb3b52118035b3

Scanner detections:
3 / 68

Status:
Potentially unwanted

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:
11/27/2024 12:43:28 AM UTC  (today)

Scan engine
Detection
Engine version

Clam AntiVirus
Win.Trojan.11366268
0.98/21411

Reason Heuristics
PUP.Installer.AppWorkGmbH.M
14.7.28.0

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

File size:
74.6 KB (76,432 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\webinstaller.exe

Digital Signature
Signed by:
AppWork GmbH

Authority:
GlobalSign nv-sa

Valid from:
1/31/2014 9:51:29 AM

Valid to:
4/1/2015 10:00:41 AM

Subject:
E=e-mail@appwork.org, CN=AppWork GmbH, O=AppWork GmbH, L=Fuerth, S=Bayern, C=DE

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

Serial number:
11218C489DBD3BC8AF35CDB519BA450DC59A

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

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
1536:lwDJZGrZopISbAoR8BXJXc9R9lFBtRThFT+ijLfkYBhBG:aDJ0rZo6StCBXJU7BtNZLnBO

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...
 
[+]

Entropy:
6.7999

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 3 URLs.

http://es.kioskea.net/download/.../download-599-

http://r2.computerbild.de/exec/r2r.pl?m=w-cobi;u=http://d.computerbild.de/downloads/.../WebInstaller.exe

http://installer.jdownloader.org/WebInstaller.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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