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postsmile.exe

App secure LLC

This is the Softpulse installer which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed with minimal consent. The application postsmile.exe by App secure 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 Softpulse SoftwareBundler installer. The file has been seen being downloaded from javdownloaderx.com.
Publisher:
App secure LLC  (signed and verified)

MD5:
250fde70fe40b17edbac21e31e91f12c

SHA-1:
d072d56c815a616cea0e38bf80f45227828effa2

SHA-256:
9f2a94cdba7832797721673acd019349dcb545e8d0b10bb1943a78a99942625b

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Description:
This 'download manager' is also considered bundleware, a utility designed to download software (possibly legitimate or opensource) and bundle it with a number of optional offers including ad-supported utilities, toolbars, shopping comparison tools and browser extensions.

Analysis date:
11/23/2024 5:25:50 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Softpulse.Appsecure.Bundler (M)
15.12.14.6

File size:
619.1 KB (633,936 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Softpulse SoftwareBundler (using Nullsoft Install System)

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

Digital Signature
Signed by:
App secure LLC

Authority:
VeriSign, Inc.

Valid from:
12/16/2014 8:00:00 PM

Valid to:
12/17/2015 7:59:59 PM

Subject:
CN=App secure LLC, O=App secure LLC, L=Wilmington, S=Delaware, C=US

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:
5D0A1845D85007CD040B350F48C5F721

File PE Metadata
Compilation timestamp:
12/5/2009 6:50:52 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
12288:ebDPfsqPFhkOyLmW0sApoNp8263/ms5wbsQbC7D3dx3qAT8q4:ebDPkX5msAUp8263L5C63dRVT8v

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...
 
[+]

Entropy:
7.9512

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://javdownloaderx.com/.../out.php?sxid=oj30tz370540

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