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silverlight.exe

Apps Installer SL

This is the Solimba installer program that will bundle additional offers mostly including adware and various unwanted PC utilities. The application silverlight.exe by Apps Installer SL has been detected as adware by 18 anti-malware scanners. The program is a setup application that uses the Solimba DownloadMR installer. The installer uses the Solimba download manager to push adware offers during the download and setup process. Bundled adware includes search and shopping web browser toolbars. The file has been seen being downloaded from www.win-install.com. While running, it connects to the Internet address cdn.solimba.com on port 80 using the HTTP protocol.
Publisher:
d-install  (signed by Apps Installer SL)

Description:
d-download mngr

Version:
3.1.11.8

MD5:
655ce9b331385089678b28998152b700

SHA-1:
5c278994d6ffd40509e88460a6fd571b9289c894

SHA-256:
b0c421069aa25c141d6cd30468cf340f13afc7b37c76806324a6615323abffce

Scanner detections:
18 / 68

Status:
Adware

Explanation:
Uses the Solimba installer to bundle adware offers.

Description:
This is an installer which may bundle legitimate applications with offers for additional 3rd-party applications that may be unwanted by the user. While the installer contains an 'opt-out' feature this is not set be defult and is usually overlooked.

Analysis date:
4/25/2024 12:20:40 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.Firseria
7.1.1

AhnLab V3 Security
PUP/Win32.FirseriaInstaller
2014.07.26

Avira AntiVirus
APPL/Firseria.A.35
7.11.163.248

avast!
Win32:Adware-BQN [Trj]
140617-1

AVG
Adware BundleApp.DP
2014.0.3986

Comodo Security
Application.Win32.Firseria.CJL
18969

Dr.Web
Trojan.DownLoader11.4341
9.0.1.05190

ESET NOD32
Win32/FirseriaInstaller.J potentially unwanted application
7.0.302.0

G Data
Win32.Application.Morstar
14.7.24

IKARUS anti.virus
AdWare.BundleApp
t3scan.1.6.1.0

K7 AntiVirus
Trojan
13.181.12846

Malwarebytes
PUP.Optional.AppsInstaller
v2014.07.25.04

NANO AntiVirus
Trojan.Win32.Agent.czpbya
0.28.2.60990

Panda Antivirus
Trj/Genetic.gen
14.07.25.04

Reason Heuristics
PUP.AppsInstallerSL.L
14.7.25.15

Sophos
Solimba Installer
4.98

Vba32 AntiVirus
Downware.Morstar
3.12.26.3

VIPRE Antivirus
Threat.4782980
31208

File size:
496.9 KB (508,816 bytes)

Product version:
3.1.14

Copyright:
copyright ©2014

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Solimba DownloadMR

Language:
Language Neutral

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

Digital Signature
Signed by:
Apps Installer SL

Authority:
GlobalSign nv-sa

Valid from:
1/24/2014 6:38:03 AM

Valid to:
1/25/2015 6:38:03 AM

Subject:
CN=Apps Installer SL, O=Apps Installer SL, L=Badalona, S=Barcelona, C=ES

Issuer:
CN=GlobalSign CodeSigning CA - G2, O=GlobalSign nv-sa, C=BE

Serial number:
1121CBDE0E20D87673EA3438EEEB8A63BE19

File PE Metadata
Compilation timestamp:
5/22/2014 7:37:06 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
6144:vimG3OIg8ROBq8XIYTxM0zmIMIBgPoFcYdz5CLrMWQ20exnBxuRkKCEX1o50sY9L:viZe5IGJXIQZBALrvxuLCEX1P5F

Entry address:
0xE9AA

Entry point:
E8, 7C, 79, 00, 00, E9, 89, FE, FF, FF, 8B, FF, 55, 8B, EC, 83, EC, 20, 8B, 45, 08, 56, 57, 6A, 08, 59, BE, 80, E4, 41, 00, 8D, 7D, E0, F3, A5, 89, 45, F8, 8B, 45, 0C, 5F, 89, 45, FC, 5E, 85, C0, 74, 0C, F6, 00, 08, 74, 07, C7, 45, F4, 00, 40, 99, 01, 8D, 45, F4, 50, FF, 75, F0, FF, 75, E4, FF, 75, E0, FF, 15, 34, E1, 41, 00, C9, C2, 08, 00, 8B, FF, 55, 8B, EC, 8B, 45, 08, 33, C9, 3B, 04, CD, 60, 54, 42, 00, 74, 13, 41, 83, F9, 2D, 72, F1, 8D, 48, ED, 83, F9, 11, 77, 0E, 6A, 0D, 58, 5D, C3, 8B, 04, CD, 64...
 
[+]

Entropy:
7.6575

Code size:
116 KB (118,784 bytes)

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

http://www.win-install.com/silverlight/download/.../915

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to cdn.solimba.com  (95.211.6.35:80)

TCP (HTTP):
Connects to api.downloadmr.com  (95.211.39.161:80)

 
http://api.downloadmr.com/installer/24559659/launch

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