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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 ttb.yosoftwrp.com.
Publisher:
App secure LLC  (signed and verified)

MD5:
fd5ca0d30e9cbf58ccbfb390f7895f5f

SHA-1:
403fa6811c72141aedab14a19c6d5159fe684332

SHA-256:
f530240b23435d08d3bd0ba92a64ce286533cacb22e4ce82fc22436dbba58b06

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 is also known as bundleware, or downloadware, which is an downloader designed to simply deliver ad-supported offers in the setup routine of an otherwise legitimate software.

Analysis date:
4/25/2024 5:57:19 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Softpulse.Appsecur.Bundler (M)
16.6.3.10

File size:
705.5 KB (722,432 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Softpulse SoftwareBundler

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

Digital Signature
Signed by:
App secure LLC

Authority:
VeriSign, Inc.

Valid from:
12/17/2014 1:00:00 AM

Valid to:
12/18/2015 12:59:59 AM

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:
2/10/2015 1:45:01 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
12288:HwQ39vLYNOyAB+av0cxcxy8mKjzr+NAjn1bjJ0/BhQEsqpiIZ8qLlnPl:HDBYgyAkW0ycY8jjHDn1vq/BWKiill

Entry address:
0x1F1790

Entry point:
60, BE, 00, C0, 54, 00, 8D, BE, 00, 50, EB, FF, 57, EB, 0B, 90, 8A, 06, 46, 88, 07, 47, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 72, ED, B8, 01, 00, 00, 00, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, 01, DB, 73, 0B, 75, 28, 8B, 1E, 83, EE, FC, 11, DB, 72, 1F, 48, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C0, EB, D4, 01, DB, 75, 07, 8B, 1E, 83, EE, FC, 11, DB, 11, C9, EB, 52, 31, C9, 83, E8, 03, 72, 11, C1, E0, 08, 8A, 06, 46, 83, F0, FF, 74, 75, D1, F8, 89, C5, EB, 0B, 01, DB, 75, 07, 8B...
 
[+]

Packer / compiler:
UPX v0.89.6 - v1.02 / v1.05 -v1.24

Code size:
664 KB (679,936 bytes)

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

http://ttb.yosoftwrp.com/download/request/.../vwklH2NJ?PubID=5426_5809_4691&ClickID=9911534716

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