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epubreaderfree_setup.exe

RSPARK LIMITED LIABILITY COMPANY

The application epubreaderfree_setup.exe by RSPARK LIMITED LIABILITY COMPANY has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The setup routine uses the RevenYou.Com Pay Per Install platform (OutBrowse) which bundles additional software offers inclduing toolbars, extensions, PC utilities as well as other PUPs. The file has been seen being downloaded from www.mediafreeware.com.
Publisher:
RSPARK LIMITED LIABILITY COMPANY  (signed and verified)

MD5:
dc26e2d343b2e424b23a1fe1432bc508

SHA-1:
969af2cffaf99c8f4b23068d343a406d6bf82037

SHA-256:
91e639f9ca69b3271aa7d316b641d18f0c37a37b181d2c4df9e599f039e84986

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Bundles additional adware offers during download and installation using the OutBrowse installer.

Analysis date:
4/29/2024 6:28:35 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.OutBrowse.RSPARKLI.Installer (M)
16.4.15.4

File size:
562.3 KB (575,752 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
Language Neutral

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

Digital Signature
Signed by:
RSPARK LIMITED LIABILITY COMPANY

Authority:
GlobalSign nv-sa

Valid from:
8/20/2014 12:42:44 PM

Valid to:
8/21/2015 12:42:44 PM

Subject:
E=billing@rspark.com, CN=RSPARK LIMITED LIABILITY COMPANY, O=RSPARK LIMITED LIABILITY COMPANY, L=Seattle, S=Washington, C=US

Issuer:
CN=GlobalSign CodeSigning CA - SHA256 - G2, O=GlobalSign nv-sa, C=BE

Serial number:
11214776E87F6F533491BA6962DED798AED3

File PE Metadata
Compilation timestamp:
12/5/2009 7:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:MfJ/UfvAAm5nsaZyZDfZlHTrroRVubrzMXiUuKJnq4Qy:Mf5UXAAcsaAfL3Mfxjuwq+

Entry address:
0x30FA

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, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://www.mediafreeware.com/.../epubreader_setup.exe

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