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pdf-preview-32-bits.exe

Web Application

Installer

The application pdf-preview-32-bits.exe, “Web Application Setup ” has been detected as a potentially unwanted program by 10 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 d.bestcontentcenter.com.
Publisher:
Installer

Product:
Web Application

Description:
Web Application Setup

MD5:
2b0bf6654013921db3a131e7f5f37d7d

SHA-1:
2178cd281bfc122c6387580fc85036d4e408d532

SHA-256:
13f24fd147c6b11ea30053de5304f03ef3e895942e39e090bbe30381838a912c

Scanner detections:
10 / 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:
8/4/2025 8:18:37 AM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.InstallCore
7.1.1

Avira AntiVirus
PUA/InstallCore.A.2387
8.3.2.2

avast!
Malware-gen
150913-1

Comodo Security
Application.Win32.InstallCore.KG
23283

ESET NOD32
Win32/InstallCore.ACQ.gen potentially unwanted application
7.0.302.0

G Data
Win32.Application.InstallCore.EG
15.9.25

K7 AntiVirus
Trojan
13.210.17297

NANO AntiVirus
Riskware.Win32.InstallCore.dpfxyn
0.30.24.3283

Vba32 AntiVirus
Malware-Cryptor.InstallCore.gen
3.12.26.4

VIPRE Antivirus
Threat.4150696
43798

File size:
646.6 KB (662,094 bytes)

Product version:
1.0

Copyright:
Application Generic

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\pdf-preview-32-bits.exe

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):
12288:g62pGSnZhUbCaff2aR2Bk0LjrCAaPyxBf3BSLuKi1czzcTYZh1YDWlDrqvdFYutC:g62pPnZhUJ2EcCOxRVK9+oVZqvPNagK/

Entry address:
0xA5F8

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, CE, 8A, FF, FF, E8, D5, 9C, FF, FF, E8, 64, 9F, FF, FF, E8, 07, A0, FF, FF, E8, A6, BF, FF, FF, E8, 11, E9, FF, FF, E8, 78, EA, FF, FF, 33, C0, 55, 68, C9, AC, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, 92, AC, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 26, F5, FF, FF, E8, 11, F1, FF, FF, 80, 3D, 34, B2, 40, 00, 00, 74, 0C, E8, 23, F6, FF, FF, 33, C0, E8, C4, 97, FF, FF, 8D, 55, F0, 33, C0, E8, B6, C5, FF, FF, 8B, 55...
 
[+]

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

Code size:
39.5 KB (40,448 bytes)

The file pdf-preview-32-bits.exe has been seen being distributed by the following URL.

http://d.bestcontentcenter.com/c?x=kHp1SDFFpdJEOXGaJUHEpF5eK3o1SQLflF1As3VC4qw=&c=i8AuBYm QgJnoRxEpd6ZLGp3cUPsKXV0/JaG71B4GSDozB8BCWD8qeFdWyOpGfe3OjQ7OmznV6POcqSKaUmUPA==&fallback_url=http://.../PDFPreviewerSetup.exe

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