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whoay4xbkp.exe

Macro Leaf

The application whoay4xbkp.exe by Macro Leaf 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 NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from cdn.searchwindowresults.com.
Publisher:
Macro Leaf  (signed and verified)

Version:
2.0.5961.23021

MD5:
5aaf88c3237c63e51adfd04c5330197b

SHA-1:
3779233a3c31fda93d700aa502790ffbc6904ca5

SHA-256:
6a7e3d510b52cf3a0a45e276d915bbf59e70db3dbd8c5d84442aa71c5d7c6fd5

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
8/24/2025 9:51:04 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.MacroLea.Installer (M)
16.4.27.23

File size:
308.4 KB (315,800 bytes)

Product version:
2016.04.27

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\users\{user}\appdata\local\temp\whoay4xbkp.exe

Digital Signature
Signed by:
Macro Leaf

Authority:
VeriSign, Inc.

Valid from:
1/28/2016 9:00:00 PM

Valid to:
1/28/2017 8:59:59 PM

Subject:
CN=Macro Leaf, O=Macro Leaf, L=San Diego, S=California, 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:
5F7EB1C761CF884D6183F6EB6EF50875

File PE Metadata
Compilation timestamp:
10/26/2015 5:23:53 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
6144:OTzb1oE2aLmaBj1yRAxduyRaJUuyUl6FDWV88Oaki/xNNJRViWZ:OTzbOzqXBoRAxwyRkV6d5akiD6WZ

Entry address:
0x3BC4

Entry point:
81, EC, CC, 02, 00, 00, 53, 55, 56, 57, 6A, 20, 33, ED, BF, 00, A2, 40, 00, 59, 89, 6C, 24, 10, 8B, DD, 8B, F1, FF, 15, 30, 90, 40, 00, 68, 01, 80, 00, 00, FF, 15, A8, 90, 40, 00, 55, FF, 15, C0, 92, 40, 00, 6A, 08, A3, 44, 3E, 47, 00, E8, A4, 33, 00, 00, 55, 68, B4, 02, 00, 00, A3, D0, BD, 46, 00, 8D, 44, 24, 30, 50, 55, 68, 88, A2, 40, 00, FF, 15, 80, 91, 40, 00, 68, 8C, A2, 40, 00, 68, E0, BD, 46, 00, E8, 57, 37, 00, 00, FF, 15, A0, 90, 40, 00, 50, 68, A0, 40, 4C, 00, E8, 46, 37, 00, 00, 55, FF, 15, BC...
 
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Packer / compiler:
Nullsoft install system v2.x

Code size:
30.5 KB (31,232 bytes)

The file whoay4xbkp.exe has been seen being distributed by the following URL.

http://cdn.searchwindowresults.com/.../si

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