jdownloader2setup.exe

Appwork GmbH

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application jdownloader2setup.exe by Appwork GmbH has been detected as a potentially unwanted program 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 file has been seen being downloaded from fetch.jdcdn.org.
Publisher:
Appwork GmbH  (signed and verified)

MD5:
314c13a033535210a48436044b5f07b2

SHA-1:
bf8ee8bb71ed375ddbf94dbbfb42170bdcd83ef6

SHA-256:
eb4057825a864cc8e4abed5eaf9cc9372c96cc723c36bee24ac9b8e426400846

Scanner detections:
1 / 68

Status:
Potentially unwanted

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is 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:
12/27/2024 10:12:21 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
16.8.5.6

File size:
351.4 KB (359,784 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Nullsoft Install System)

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\jdownloader2setup.exe

Digital Signature
Signed by:

Authority:
thawte, Inc.

Valid from:
1/28/2015 5:30:00 AM

Valid to:
1/29/2016 5:29:59 AM

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

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
4C87501159A97E0FA43CF04A705381FC

File PE Metadata
Compilation timestamp:
10/7/2014 10:10:23 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
6144:U8dNXSEo7NBjYjWV58fGm3ZlaECSyFW9H71ke6QU/4OkVokku3yprswNR2nSwH+o:PO1DBqGS0Whqd/cH4rsw32nSU+o

Entry address:
0x30E2

Entry point:
81, EC, 84, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 90, 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, 1C, 71, 40, 00, 53, FF, 15, 8C, 72, 40, 00, 6A, 09, A3, 78, E4, 42, 00, E8, A8, 2D, 00, 00, A3, C4, E3, 42, 00, 53, 8D, 44, 24, 38, 68, 60, 01, 00, 00, 50, 53, 68, 00, 88, 42, 00, FF, 15, 64, 71, 40, 00, 68, 80, 91, 40, 00, 68, C0, DB, 42, 00, E8, 52, 2A, 00, 00, FF, 15, 20, 71, 40, 00, BD, 00, 40, 43, 00, 50, 55, E8, 40, 2A...
 
[+]

Entropy:
7.6552

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file jdownloader2setup.exe has been seen being distributed by the following URL.

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