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pdfwritersetup.exe

ClickRunSoftware

The file is a bundle distribution and utilizes the installCore download manager to distribute this potentially unwanted software. The application pdfwritersetup.exe by ClickRunSoftware has been detected as adware 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 www.unipdfconverter.com.
Publisher:
ClickRunSoftware  (signed and verified)

MD5:
9830a0d939cfe714636bacbbddba8378

SHA-1:
26a90b5959b8c3eb47874c99113bc0b49214c0c2

SHA-256:
ab67dc99374f259ff5f13e75e05ba3e9544b4525f12c6cc0ed6f4576c9be6e08

Scanner detections:
1 / 68

Status:
Adware

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 8:24:54 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.installCore.ClickRunSoftware.Installer (M)
16.1.24.16

File size:
1.2 MB (1,277,888 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

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

Digital Signature
Signed by:
ClickRunSoftware

Authority:
COMODO CA Limited

Valid from:
4/21/2013 9:00:00 PM

Valid to:
4/22/2014 8:59:59 PM

Subject:
CN=ClickRunSoftware, O=ClickRunSoftware, STREET=Rothschild 63 Blvd, L=Tel-Aviv, S=NA, PostalCode=65785, C=IL

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
4138DDBC130C89C85F78EC0CC69C2A61

File PE Metadata
Compilation timestamp:
6/19/1992 7:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
24576:CJfsSO0x9UMZOufo03t6PDDMo132peVU3e+eOuhz92HAy4YBVZx:CJfs8x9UMZnfo03tkHZEpe+TuhJ2HAhg

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 pdfwritersetup.exe has been seen being distributed by the following URL.

http://www.unipdfconverter.com/default/ga/.../?dl=1

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