jdownloadersetup_ch1.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 jdownloadersetup_ch1.exe by AppWork GmbH has been detected as a potentially unwanted program by 5 anti-malware scanners. 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. It is also typically executed from an Internet Explorer cache folder. The file has been seen being downloaded from installer.jdownloader.org and multiple other hosts.
Publisher:
AppWork GmbH  (signed and verified)

MD5:
9934a003044ee95d68069b6d8d221107

SHA-1:
15847a03c6d04f37687b96c975eab2a197078372

SHA-256:
580a7d21203f885869dd689d398d2ba342d5f77ff862f84ecb8a20f99ff544f0

Scanner detections:
5 / 68

Status:
Potentially unwanted

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

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:
6/18/2021 5:44:28 AM UTC  (today)

Scan engine
Detection
Engine version

ESET NOD32
Win32/InstallCore.CM (variant)
7.9190

McAfee
Artemis!9934A003044E
5600.7277

Reason Heuristics
PUP.Installer.AppWorkGmbH.U
14.3.1.13

Rising Antivirus
PE:Malware.XPACK-LNR/Heur!1.5594
23.00.65.131216

Trend Micro House Call
TROJ_GEN.R0CBH07JN13
7.2.352

File size:
619.1 KB (633,984 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\jdownloadersetup_ch1.exe

Digital Signature
Signed by:

Authority:
GlobalSign nv-sa

Valid from:
3/1/2011 3:00:48 PM

Valid to:
3/1/2014 3:00:41 PM

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

Issuer:
CN=GlobalSign ObjectSign CA, OU=ObjectSign CA, O=GlobalSign nv-sa, C=BE

Serial number:
0100000000012E71E7355C

File PE Metadata
Compilation timestamp:
6/20/1992 12:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:AU5kOyMJfsGKymLBD2Zy+asQUvMXlupTQW+9R7o3qdtyL5gnKbXzEV7vV:4OyMJfszLFFSur9o6dkL53nERv

Entry address:
0x98CC

Entry point:
55, 8B, EC, 83, C4, CC, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, FA, 97, FF, FF, E8, 01, AA, FF, FF, E8, 2C, CC, FF, FF, E8, 73, CC, FF, FF, E8, 0A, F3, FF, FF, E8, 71, F4, FF, FF, 33, C0, 55, 68, 76, 9F, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 2C, 9F, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, B0, 40, 00, E8, 9B, FE, FF, FF, E8, 26, FA, FF, FF, 8D, 55, F0, 33, C0, E8, E0, D0, FF, FF, 8B, 55, F0, B8, D8, BD, 40, 00, E8, AB, 98, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, D8, BD, 40, 00, B2, 01, B8...
 
[+]

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

Code size:
36 KB (36,864 bytes)

The file jdownloadersetup_ch1.exe has been seen being distributed by the following 2 URLs.

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