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install_jd_two.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 install_jd_two.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 jdownloader.org.
Publisher:
Appwork GmbH  (signed and verified)

MD5:
fbb14f23101c2064c15c38f174770329

SHA-1:
6e0ac435e6a49d89d8dea9e5770b7bcff46ff7b7

SHA-256:
84a07d21e299b6f9914e98bbce412df942c0b9a37162d7f004d8d49aba97645e

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 '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:
4/19/2024 6:43:43 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore (M)
15.6.26.12

File size:
483.3 KB (494,896 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Nullsoft Install System)

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

Digital Signature
Signed by:
Appwork GmbH

Authority:
thawte, Inc.

Valid from:
1/28/2015 12:00:00 AM

Valid to:
1/28/2016 11:59:59 PM

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 5:40:23 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
6144:l8dNXSEA7N9wjWV58fGm3ZlaECSyFW9H71ke6QU/4OkVokku3yprswNRVxbMUodM:2ODBqGS0Whqd/cH4rsw3Pe85OXj5vr

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...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://jdownloader.org/.../dl2.php?v=2

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