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yappyz_1332_1.exe

Yappyz

SIEN S.A.

This is the SIEN AppScion Installer which bundles applications with offers for additional 3rd party software, mostly unwanted adware, and may be installed with minimal consent. The application yappyz_1332_1.exe by SIEN S.A has been detected as a potentially unwanted program 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 SIEN SuperInstall installer. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from vzapp.iminent.com.
Publisher:
The Yappyz Authors  (signed by SIEN S.A.)

Product:
Yappyz

Version:
27.1.1419.0

MD5:
59a405f95d60d2ade673fa372995d520

SHA-1:
c411614b2a5d97b8b5ebb7e707d65d18a27385e1

SHA-256:
bae2a7c3a1b9e6f21cbc1a3c1721d62e75d352e4a5fa0fb955961986c1b4c96e

Scanner detections:
1 / 68

Status:
Potentially unwanted

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:
4/23/2024 9:08:58 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.SIENSA.N
14.4.5.2

File size:
29.9 MB (31,376,704 bytes)

Product version:
27.1.1419.0

Copyright:
Copyright 2013 The Yappyz Authors. All rights reserved.

File type:
Executable application (Win32 EXE)

Bundler/Installer:
SIEN SuperInstall

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\yappyz_1332_1.exe

Digital Signature
Signed by:
SIEN S.A.

Authority:
VeriSign, Inc.

Valid from:
8/21/2012 5:00:00 PM

Valid to:
8/22/2014 4:59:59 PM

Subject:
CN=SIEN S.A., OU=Digital ID Class 3 - Microsoft Software Validation v2, O=SIEN S.A., L=Paris, S=France, C=FR

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:
514EA00D30C8C244C3E818890BF73967

File PE Metadata
Compilation timestamp:
8/6/2013 6:48:50 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
393216:WuTeeW9m6QbxInWIraaAHwwtdnAleKMmNIm2GWDPNcwnpqHZAick6JnZiEulR6r:VTeD9SVInCaKV9sNIm25T+AE1cDiEoR0

Entry address:
0x2ED0

Entry point:
6A, 00, FF, 15, 9C, 10, 40, 00, 50, E8, A2, FE, FF, FF, 83, C4, 04, 50, FF, 15, 98, 10, 40, 00, CC, CC, CC, CC, CC, CC, CC, CC, 55, 8B, EC, 56, 8B, 75, 0C, 8D, 04, 36, 39, 45, 14, 77, 05, 32, C0, 5E, 5D, C3, 8B, 55, 10, 33, C9, 33, C0, 66, 89, 0C, B2, 85, F6, 74, 3C, 53, 57, 8B, 7D, 08, EB, 06, 8D, 9B, 00, 00, 00, 00, 8A, 0C, 38, 0F, B6, D9, 0F, BE, C9, C1, EB, 04, 66, 8B, 1C, 5D, 88, 14, 40, 00, 83, E1, 0F, 66, 89, 1C, 82, 66, 8B, 0C, 4D, 88, 14, 40, 00, 66, 89, 4C, 82, 02, 40, 3B, C6, 72, D3, 5F, 5B, B0...
 
[+]

Entropy:
8.0000

Packer / compiler:
FASM v1.3x

Code size:
10 KB (10,240 bytes)

The file yappyz_1332_1.exe has been seen being distributed by the following URL.

http://vzapp.iminent.com/vz/3C0469A7-A63D-4A73-B521-7A91DFBEBA64/.../yappyz_1332_1.exe

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