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yaygames.exe

YayZap Installer

YayZap

The executable yaygames.exe has been detected as malware by 1 anti-virus scanner. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from maby.yayzap.com.
Publisher:
YayZap  (signed and verified)

Product:
YayZap Installer

Version:
4.0.4608.0

MD5:
9e52b48e5fa466443c6e222af3d75542

SHA-1:
49213eaa7bb8b9bb6dea35430f3cbe4515141d09

SHA-256:
ba8e5c911069b2ae9e4e81bb4ea1a38b13b5ea1eafc881f4b3406af5ca03fc2e

Scanner detections:
1 / 68

Status:
Malware

Analysis date:
7/5/2025 5:54:19 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
17.3.2.9

File size:
284.8 KB (291,656 bytes)

Product version:
4.0.4608.0

Copyright:
Copyright (C) 2015

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\yaygames.exe

Digital Signature
Signed by:
YayZap

Authority:
thawte, Inc.

Valid from:
6/21/2016 6:00:00 PM

Valid to:
7/7/2017 5:59:59 PM

Subject:
CN=YayZap, O=YayZap, L=Laguna Hills, S=California, C=US

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
6E97AC7DDF1F3D6B132A8F3FCE03E6C7

File PE Metadata
Compilation timestamp:
12/5/2009 3:50:46 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

Entry address:
0x323C

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 30, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 58, 3F, 42, 00, E8, 09, 2C, 00, 00, A3, A4, 3E, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 58, F4, 41, 00, FF, 15, 58, 71, 40, 00, 68, B8, 91, 40, 00, 68, A0, 36, 42, 00, E8, BC, 28, 00, 00, FF, 15, B0, 70, 40, 00, BF, 00, 90, 42, 00, 50, 57, E8, AA, 28, 00, 00...
 
[+]

Entropy:
7.9219

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

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

http://maby.yayzap.com/.../getsetup.php?sp=YTE2MTk3MzQ2MDbboUUqDbSzw2bZtvqfiqG1Df85T3ARVUHLg2sN2lq5lO0G11ww2Ty8eCRltSLw/zCyWSLV/3NpSgfuOomF1oyV+tPICgD64BN3ebH4Cgz/SncuJpJ/A3iKCjyS1PuAoSU=

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