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dropbox.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 dropbox.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 installer is marketed through download protals and search ads as Dropbox but will also install additional software offers which include adware, PUPs and browser toolbars.
Publisher:
iinstaller  (signed by Apps Installer SL)

Description:
iinstaller

Version:
3.1.10.31

MD5:
879226b2594c143950bd5af0744e77f7

SHA-1:
02020bd8e109caf51770029898b6d3fe815afa59

SHA-256:
1abf1998bda126e16d58a860f095cd23c532597bb198d16e6b40fd241846c2c1

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:
4/24/2024 3:39:47 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
PUA.Firseria
7.1.1

Avira AntiVirus
APPL/Firseria.A.18
7.11.177.6

avast!
Win32:Adware-BQN [Trj]
141003-0

AVG
Adware BundleApp.CS
2014.0.4037

Comodo Security
Application.Win32.FirseriaInstaller.IFA
19729

Dr.Web
Trojan.DownLoader11.4341
9.0.1.05190

ESET NOD32
Win32/FirseriaInstaller.J potentially unwanted application
7.0.302.0

F-Prot
W32/A-2991a3af
v6.4.7.1.166

G Data
Win32.Application.Morstar
14.10.24

K7 AntiVirus
Unwanted-Program
13.183.13597

Malwarebytes
PUP.Optional.AppsInstaller
v2014.10.07.03

NANO AntiVirus
Trojan.Win32.DownLoader11.cykqpy
0.28.2.62483

Panda Antivirus
Trj/Genetic.gen
14.10.07.03

Reason Heuristics
PUP.Installer.AppsInstallerSL.H
14.10.7.3

Sophos
Solimba Installer
4.98

Vba32 AntiVirus
Downware.Morstar
3.12.26.3

VIPRE Antivirus
Threat.4895151
33706

Zillya! Antivirus
Adware.Fiseria.Win32.122
2.0.0.1945

File size:
500.9 KB (512,912 bytes)

Product version:
3.1.10

Copyright:
Copyright ©2014

Original file name:
iinstaller.exe

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Solimba DownloadMR

Language:
Language Neutral

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

Digital Signature
Signed by:
Apps Installer SL

Authority:
GlobalSign nv-sa

Valid from:
1/24/2014 4:38:03 PM

Valid to:
1/25/2015 4:38:03 PM

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:
4/25/2014 12:37:30 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
6144:h1qJMFiDr+dPqMngf0zTvmIMcXmpPoy/3jdz5SUfi7A20UG/HZvuRoPS30CiC1Z4:h1qOMn+dPqgg8Xv/X+p6hgH9u4CTex

Entry address:
0xEF44

Entry point:
E8, C2, 78, 00, 00, E9, 89, FE, FF, FF, 8B, FF, 55, 8B, EC, 83, EC, 20, 8B, 45, 08, 56, 57, 6A, 08, 59, BE, 88, F4, 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, 24, F1, 41, 00, C9, C2, 08, 00, 8B, FF, 55, 8B, EC, 8B, 45, 08, 33, C9, 3B, 04, CD, 60, 64, 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:
7.6421

Code size:
117 KB (119,808 bytes)

The file dropbox.exe has been seen being distributed by the following 2 URLs.

http://dl.downloadaixeechahgho.com/n/3.1.10.31/.../Dropbox.exe

http://www.pc-file.com/dropbox/download/.../713

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/34602237/launch

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