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pdf_reader.exe

The application pdf_reader.exe has been detected as a potentially unwanted program by 3 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer, however the file is not signed with an authenticode signature from a trusted source. The file has been seen being downloaded from 8f56ec5a25d50527cde0d768c7fd987b.lswcdn.net.
MD5:
3240458139e356093d7a4b03c2727fb7

SHA-1:
b5266806b4f2aab64220d0c27ffd68dd3419a1d4

SHA-256:
15e65c8620c1906c08de8e1f282a63c4e89b889c99ae4640f2669efd9c5badce

Scanner detections:
3 / 68

Status:
Potentially unwanted

Explanation:
May bundle various unwanted software without adequate user consent.

Analysis date:
12/27/2024 1:57:10 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
Could be an adware MultiBundle
2015.0.4489

Reason Heuristics
Adware.DownloadShield.Bundle.Meta (M)
16.2.24.0

VIPRE Antivirus
Threat.4657539
46062

File size:
261.4 KB (267,681 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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

File PE Metadata
Compilation timestamp:
8/28/2014 9:10:27 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
6144:rkZmW0Y5BAk3bKyPsUYiBy8DmiKJL94AhChC:5YZvP3YYtKJJbhChC

Entry address:
0x3350

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, A8, 73, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, B8, 3C, 42, 00, E8, 23, 25, 00, 00, 53, 68, 60, 01, 00, 00, A3, C0, 3B, 42, 00, 8D, 44, 24, 38, 50, 53, 68, 3B, 74, 40, 00, FF, 15, 58, 71, 40, 00, 68, 30, 74, 40, 00, 68, C0, 33, 42, 00, E8, 15, 24, 00, 00, FF, 15, B0, 70, 40, 00, 50, BF, 00, 90, 42, 00, 57, E8, 03, 24, 00, 00...
 
[+]

Entropy:
7.3397

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

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

http://8f56ec5a25d50527cde0d768c7fd987b.lswcdn.net/PDF_Reader.exe

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