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pdf4free.exe

PDF4Free

PDF Bean Inc.

The executable pdf4free.exe has been detected as malware by 11 anti-virus 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. Infected by an entry-point obscuring polymorphic file infector which will create a peer-to-peer botnet and receives URLs of additional files to download. The file has been seen being downloaded from www.pdfpdf.com.
Publisher:
PDF Bean Inc.

Product:
PDF4Free

Version:
3.01

MD5:
66f40ffabed98d2523a8f79d9d0e7609

SHA-1:
3dc667b84a9484bdb855eb6f117156ddcc6bb481

SHA-256:
185f12b00f72c91a2ba4f7c64e772fc087fc9ef12b3c4e1ca84fcb07f0a93879

Scanner detections:
11 / 68

Status:
File is infected by a Virus

Explanation:
The file is infected by a polymorphic file infector virus.

Analysis date:
4/18/2024 9:15:26 AM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:SaliCode
160518-2

AVG
Win32/Sality
2015.0.4568

Dr.Web
Win32.Sector.21
9.0.1.05190

Emsisoft Anti-Malware
Win32.Sality
11.5.0.6191

ESET NOD32
Win32/Sality.NBA virus
8.0.319.0

F-Prot
W32/Sality.gen2
4.6.5.141

F-Secure
Win32.Sality.3
5.15.96

Kaspersky
Virus.Win32.Sality
15.0.0.562

McAfee
Virus.W32/Sality.gen.z
18.0.204.0

Microsoft Security Essentials
Threat.Undefined
1.221.336.0

Norman
Win32.Sality.3
19.05.2016 05:17:13

File size:
821.9 KB (841,583 bytes)

Product version:
3.01

Copyright:
Copyright © 2003-2013 PDF Bean Inc.

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\pdf4free.exe

File PE Metadata
Compilation timestamp:
6/20/1992 5:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:hnadRiGJHkmYw09yUxM9p+pkLmIFGvXyfn7Av0eTSjt76RLk+GF4O2DnM2xk/O2C:hnani40d9i94kLVKFvBK7/+GQJxkTC

Entry address:
0x9C40

Entry point:
60, 8D, 0D, 84, 8E, 07, C0, 55, 52, 8D, 1D, 7D, 75, D2, CE, 8A, D8, EB, 0A, C7, C2, C2, F5, F9, 1B, 8A, D5, 89, DF, 81, FF, 5C, F3, 00, 00, 70, 05, 86, F6, 87, FA, F2, 8B, EF, C6, C2, 22, 87, C2, E8, 00, 00, 00, 00, B8, 45, 0F, FB, 1D, 28, DC, F2, 68, A2, 05, 00, 00, EB, 0A, 81, DD, 8E, B3, CE, 28, F3, 0F, AF, F8, 5B, 8A, EB, 81, F3, 76, 0A, 00, 00, 77, 07, 24, EE, 25, DE, EB, 84, 39, F2, 4F, FE, C2, 81, FF, D5, 2B, 00, 00, 72, 02, FF, C1, 81, EB, 4D, F7, FF, FF, EB, 0A, 1B, FD, 8D, 2D, 88, 46, D8, D8, 85...
 
[+]

Entropy:
7.9733  (probably packed)

Code size:
37 KB (37,888 bytes)

The file pdf4free.exe has been seen being distributed by the following URL.

http://www.pdfpdf.com/pdf4free.exe

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