installer_dropbox_english.exe

Max Setup

The installer utilizes the installCore download manager which may bundle additional offers for various ad-supported toolbars, extensions and utilities. The application installer_dropbox_english.exe by Max Setup has been detected as adware by 29 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. With this installer, users are expecting to download Dropbox but before that occurs they may be presented with additional offers, mostly potentially unwanted software or adware.
Publisher:
Max Setup  (signed and verified)

MD5:
5b7457b8db845c9274a722fd4421a4b5

SHA-1:
91c8ecc591df770572b4d820aee63076d9e9e083

SHA-256:
c7c3b7ec30fd4c185c945d06200992def04f0506e8a54e15c27fa63bf3f4a8c7

Scanner detections:
29 / 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:
5/3/2024 10:07:59 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Trojan.Heur2.GZ.QGZ@bunJw4gi
878

Agnitum Outpost
Trojan.Kryptik
7.1.1

Avira AntiVirus
7.11.140.8

avast!
Win32:Adware-gen [Adw]
140908-2

AVG
MalSign.InstallC
2015.0.3356

Bitdefender
Gen:Trojan.Heur2.GZ.QGZ@bunJw4gi
1.0.20.1260

Clam AntiVirus
Win.Trojan.Kryptik-1661
0.98/19346

Comodo Security
Application.Win32.InstallCore.BWAM
18008

Dr.Web
Trojan.Packed.24524
9.0.1.05190

Emsisoft Anti-Malware
Gen:Trojan.Heur2.GZ.QGZ@bunJw4gi
8.14.09.09.03

ESET NOD32
Win32/InstallCore.LB potentially unwanted application
7.0.302.0

Fortinet FortiGate
W32/Kryptik.BVVE!tr
9/9/2014

F-Prot
W32/A-f2a9ad54
v6.4.7.1.166

F-Secure
Gen:Trojan.Heur2.GZ.QGZ@bunJw4gi
11.2014-09-09_3

G Data
Gen:Trojan.Heur2.GZ.QGZ@bunJw4gi
14.9.24

IKARUS anti.virus
Backdoor.Hupigon
t3scan.1.6.1.0

K7 AntiVirus
Unwanted-Program
13.177.11984

Malwarebytes
v2014.09.09.03

McAfee
Artemis!C0B6EAE909CF
5600.7012

MicroWorld eScan
Gen:Trojan.Heur2.GZ.QGZ@bunJw4gi
15.0.0.756

NANO AntiVirus
Riskware.Win32.InstallCore.dcnbjv
0.28.2.60990

Norman
Kryptik.CDMO
11.20140909

Qihoo 360 Security
Win32/Virus.Adware.94c
1.0.0.1015

Reason Heuristics
PUP.MaxSetup.Z
14.9.9.15

Sophos
PUA.Install Core Click run software
5.05

SUPERAntiSpyware
Trojan.Agent/Gen-Nullo[Short]
10370

Trend Micro House Call
TROJ_GEN.F47V0327
7.2.252

Vba32 AntiVirus
3.12.26.0

VIPRE Antivirus
InstallCore.b
27804

File size:
680.7 KB (697,048 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
installCore (using Inno Setup)

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

Digital Signature
Signed by:

Authority:
COMODO CA Limited

Valid from:
3/11/2014 12:00:00 AM

Valid to:
3/11/2015 11:59:59 PM

Subject:
CN=Max Setup, O=Max Setup, STREET=Lillienblam 28, L=Tel Aviv, S=Tel Aviv, PostalCode=651307, C=IL

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

Serial number:
008F6F1294DBB38F9F80A7A06DE489DF45

File PE Metadata
Compilation timestamp:
6/19/1992 11:22:17 PM

OS version:
1.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
12288:0nvpeW/FNX4/kKYEf6u1AagCV9jXOmBlCiMNgaqZlF+opBZ:0nvEKsEuWadzjeYlCiMNjqj0on

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...
 
[+]

Entropy:
7.8584

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

Code size:
37 KB (37,888 bytes)

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

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