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wassapp-windows-downloader.exe

Malavida Network International, S.L.

The application wassapp-windows-downloader.exe by Malavida Network International, S.L has been detected as adware by 9 anti-malware scanners. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. This will display context specific advertisements in the browser as well as attempt to modify the browser's search provider. The file has been seen being downloaded from dl13350c4.mvmfd.net and multiple other hosts.
Publisher:
Malavida Network International, S.L.  (signed and verified)

MD5:
b8a145e10ece00ad368a2d6ada81f4ed

SHA-1:
e21e1ae7866f1d0ae2c80f5612609ab20bbce1bd

SHA-256:
e20606243a1a120dcd254b6fc0ae8c821e47bd235b6bddd493260c4e57169f94

Scanner detections:
9 / 68

Status:
Adware

Explanation:
The installer may include an offer for the Babylon Toolbar (a homepage/search hijacker), which is potentially installed with minimal user consent.

Analysis date:
12/26/2024 1:10:59 PM UTC  (today)

Scan engine
Detection
Engine version

AVG
Toolbar.Babylon
2015.0.3437

Dr.Web
Adware.Downware.1448
9.0.1.0172

ESET NOD32
Win32/Malavida
8.9493

K7 AntiVirus
Unwanted-Program
13.176.11311

McAfee
Artemis!B8A145E10ECE
5600.7093

Reason Heuristics
PUP.MalavidaNetworkInternationalSL.AA
14.8.7.21

Sophos
Malavida
4.98

Trend Micro House Call
TROJ_GEN.F47V0225
7.2.172

VIPRE Antivirus
Malavida
27030

File size:
444.5 KB (455,216 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\downloads\wassapp-windows-downloader.exe

Digital Signature
Signed by:
Malavida Network International, S.L.

Authority:
VeriSign, Inc.

Valid from:
3/27/2013 5:30:00 AM

Valid to:
3/28/2014 5:29:59 AM

Subject:
CN="Malavida Network International, S.L.", OU=Digital ID Class 3 - Microsoft Software Validation v2, O="Malavida Network International, S.L.", L=Valencia, S=Valencia, C=ES

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
0DC341780137340F059956E88184360E

File PE Metadata
Compilation timestamp:
12/6/2009 4:20:41 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
6144:UQqGcSTjtmMyHYZowAjO3UeKv4WpNqAXJ2WptMHLRHkaYnZ3Rva8JjXZDqebkPBW:VcwpnRYjTlN9XNOR0ZFa4DqluaqNl

Entry address:
0x30CB

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 38, 3F, 42, 00, E8, F1, 2B, 00, 00, A3, 84, 3E, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 30, F4, 41, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 80, 36, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 90, 42, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.9241

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

The file wassapp-windows-downloader.exe has been seen being distributed by the following 2 URLs.

http://dl13350c4.mvmfd.net/en/.../photoshop-windows-downloader.exe

http://dl13350c3.mvmfd.net/en/.../scramby-windows-downloader.exe

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