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nfssnowfallwindow.exe

The application nfssnowfallwindow.exe has been detected as a potentially unwanted program by 8 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 newfreescreensavers.com.
MD5:
6375f5a6d2162101354d05b32ff4cb7e

SHA-1:
c491ee981e18d5335364eb8992bef033d2f62a03

SHA-256:
4528fb91671b0a758fccfda1e77bc5e092500e51da39507e5b70eb1393669e28

Scanner detections:
8 / 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:
11/23/2024 6:18:38 AM UTC  (today)

Scan engine
Detection
Engine version

Bkav FE
W32.Clodcf5.Trojan
1.3.0.4613

F-Prot
W32/InstallCore.R.gen
v6.4.7.1.166

Malwarebytes
PUP.Optional.InstallCore.A
v2015.11.16.06

McAfee
Artemis!6375F5A6D216
5600.6579

Rising Antivirus
PE:Malware.XPACK-LNR/Heur!1.5594
23.00.65.151114

SUPERAntiSpyware
PUP.InstallCore/Variant
9503

Trend Micro House Call
TROJ_GEN.F47V1209
7.2.320

VIPRE Antivirus
InstallCore.b
24404

File size:
668 KB (684,024 bytes)

File type:
Executable application (Win32 EXE)

Installer:
Inno Setup

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

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

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:gQ3MJfsGARMKbwyqre9Jk9FT5Z5Zmh+7WjNJflICIiaAV6iSA/If2W41k018gxNN:gQ3MJfs/m+wNre9Jk9DZ5Zmh+7KNRltZ

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:
7.7902

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

Code size:
36 KB (36,864 bytes)

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

http://newfreescreensavers.com/download/.../nfssnowfallwindow

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