arcsoft-photostudio.exe

FITDownloader

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application arcsoft-photostudio.exe by FITDownloader has been detected as adware by 10 anti-malware scanners. The program is a setup application that uses the installCore installer. 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 d13dhn7ldhrcf6.cloudfront.net and multiple other hosts.
Publisher:
FITDownloader  (signed and verified)

MD5:
baed484cff99e95320b0b9aaf66ac5aa

SHA-1:
f3dd373325582de7f3e74b1711533b390815b7e9

SHA-256:
e9544b9f662dc3e471e120dd63728326093d37824f1dec1a527f3e9f804349fd

Scanner detections:
10 / 68

Status:
Adware

Explanation:
Uses the InstallCore download manager to install additional potentially unwanted software which may include extensions such as DealPly and various toolbars.

Description:
This is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
5/8/2024 12:49:45 AM UTC  (today)

Scan engine
Detection
Engine version

Avira AntiVirus
7.11.182.158

AVG
Generic
2015.0.3304

Dr.Web
Adware.InstallCore.464
9.0.1.0304

ESET NOD32
Win32/InstallCore.PS (variant)
8.10652

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

K7 AntiVirus
Unwanted-Program
13.185.13866

Reason Heuristics
PUP.FITDownloader.T
14.10.31.15

Vba32 AntiVirus
Malware-Cryptor.InstallCore.gen
3.12.26.3

VIPRE Antivirus
Trojan.Win32.Generic
34404

File size:
735.7 KB (753,312 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

Common path:
C:\users\{user}\downloads\arcsoft-photostudio.exe

Digital Signature
Signed by:

Authority:
COMODO CA Limited

Valid from:
4/28/2014 2:00:00 AM

Valid to:
4/29/2015 1:59:59 AM

Subject:
CN=FITDownloader, O=FITDownloader, STREET=28 Lenelblome St., L=Tel-Aviv, S=Israel, PostalCode=651307, C=IL

Issuer:
CN=COMODO Code Signing CA 2, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB

Serial number:
5E0816C139E8D20E76830D3D9638C4FE

File PE Metadata
Compilation timestamp:
6/20/1992 12:22:17 AM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:UIvpUft/1FwEmmC8KOpe8imcWd9pI7gDkVJJmlDgyJKFuX9lzvyqXY6qo6dduLWL:UIvCF/1Fw9mC8hA8imcWb+UDKDmlDbRE

Entry address:
0x9C40

Entry point:
55, 8B, EC, 83, C4, C4, 53, 56, 57, 33, C0, 89, 45, F0, 89, 45, DC, E8, 86, 94, FF, FF, E8, 8D, A6, FF, FF, E8, 1C, A9, FF, FF, E8, 53, C9, FF, FF, E8, 9A, C9, FF, FF, E8, C9, F2, FF, FF, E8, 30, F4, FF, FF, 33, C0, 55, 68, FC, A2, 40, 00, 64, FF, 30, 64, 89, 20, 33, D2, 55, 68, C5, A2, 40, 00, 64, FF, 32, 64, 89, 22, A1, 14, C0, 40, 00, E8, 96, FE, FF, FF, E8, C9, FA, FF, FF, 8D, 55, F0, 33, C0, E8, 83, CF, FF, FF, 8B, 55, F0, B8, 24, CE, 40, 00, E8, 32, 95, FF, FF, 6A, 02, 6A, 00, 6A, 01, 8B, 0D, 24, CE...
 
[+]

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

Code size:
37 KB (37,888 bytes)

The file arcsoft-photostudio.exe has been seen being distributed by the following 2 URLs.

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