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pdfreadersetup.exe

The application pdfreadersetup.exe has been detected as a potentially unwanted program by 5 anti-malware scanners. The program is a setup application that uses the Inno Setup installer, however the file is not signed with an authenticode signature from a trusted source. The setup program uses the InstallCore engine which may bundle additional software offers including toolbars and browser extensions. The file has been seen being downloaded from www.pdfreaderapps.com.
MD5:
a9724f661c542602dce380cfc48ba1b2

SHA-1:
1d62726b0fac4c4ecb24ab055fa6b73d5e3a6424

SHA-256:
d35db4d105f10c3b30850fea5d5f70e5af6a278d43a1a8d8a287fc2c8aaffd93

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.

Analysis date:
4/23/2024 8:08:59 AM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:Adware-gen [Adw]
160118-1

Dr.Web
Adware.InstallCore.99, Adware.InstallCore.122
9.0.1.05190

ESET NOD32
Win32/Kryptik.BWJC trojan
7.0.302.0

F-Prot
W32/InstallCore.R.gen
4.6.5.141

Sophos
PUA 'Install Core Click run software'
5.23

File size:
632.8 KB (647,952 bytes)

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

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

File PE Metadata
Compilation timestamp:
6/20/1992 3:52:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:l8EMJfseF1SHalRb+5p6CrO6L0xyO+lrBdP+cYVZwsVNwY3SYAQXi61QehMKQkDy:ldMJfswllByO36BdP+hwsVN33SYBiY2d

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...
 
[+]

Entropy:
7.7789

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

Code size:
36 KB (36,864 bytes)

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

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

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