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skype.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 skype.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 fastjavinstall.com.
Publisher:
App secure LLC  (signed and verified)

MD5:
bf4564e0b69ace26ffe589699bb89054

SHA-1:
a89496eb3e887da99ac95a6637c8199bc1b2fdf4

SHA-256:
a79b133695be58a364bb9f7cb886ff2f8417ed6e494b79f78e3fc71994648b54

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:
12/28/2024 9:00:15 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Softpulse.Appsecur.Bundler (M)
16.6.30.8

File size:
578 KB (591,848 bytes)

File type:
Executable application (Win32 EXE)

Bundler/Installer:
Softpulse SoftwareBundler

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

Digital Signature
Signed by:
App secure LLC

Authority:
VeriSign, Inc.

Valid from:
12/17/2014 4:00:00 AM

Valid to:
12/18/2015 3:59:59 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:
3/3/2015 1:59:28 PM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
9.0

CTPH (ssdeep):
12288:gdLTQoXSq3xq+OGxp4AaTPqACJIpJa9dZ6Op+nKJ1zYiIoSsTDkFJqL357HgGs7:gRZS+XxXlAaIWwORJ1zYmTQqL357AGs7

Entry address:
0x1A8960

Entry point:
60, BE, 00, E0, 53, 00, 8D, BE, 00, 30, EC, FF, 57, 89, E5, 8D, 9C, 24, 80, C1, FF, FF, 31, C0, 50, 39, DC, 75, FB, 46, 46, 53, 68, AB, 69, 1A, 00, 57, 83, C3, 04, 53, 68, 5D, A9, 06, 00, 56, 83, C3, 04, 53, 50, C7, 03, 03, 00, 02, 00, 90, 90, 90, 90, 90, 55, 57, 56, 53, 83, EC, 7C, 8B, 94, 24, 90, 00, 00, 00, C7, 44, 24, 74, 00, 00, 00, 00, C6, 44, 24, 73, 00, 8B, AC, 24, 9C, 00, 00, 00, 8D, 42, 04, 89, 44, 24, 78, B8, 01, 00, 00, 00, 0F, B6, 4A, 02, 89, C3, D3, E3, 89, D9, 49, 89, 4C, 24, 6C, 0F, B6, 4A...
 
[+]

Entropy:
7.9469  (probably packed)

Code size:
432 KB (442,368 bytes)

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

http://fastjavinstall.com/.../out.php?sxid=xy20ar539246

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