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ptqinstaller.exe

The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from periodictableexplorer.com.
MD5:
311037c6c8ff49e193a08ead855d93ec

SHA-1:
4bc4b7f90ae9f248a2f01bfdebb054375dda9710

SHA-256:
d32193064248f7b11f51ed042c6aca33c451f18bb0eac4565651a2ed8b017f8e

Scanner detections:
0 / 68

Status:
Clean (as of last analysis)

Analysis date:
8/3/2025 8:04:31 PM UTC  (today)

File size:
1.4 MB (1,468,343 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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

File PE Metadata
Compilation timestamp:
9/29/2007 9:50:37 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
24576:1J5KzA/9X7bQ0P9LFFTFiHY4tROJGWbXNCZBSeigtP4oI4cOw7FkZzcfo0Bw:1J5Kzi/QOxFTPgYJGC0SetI4cJFkZSoD

Entry address:
0x30F3

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, C8, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, D8, EC, 42, 00, E8, D4, 2A, 00, 00, A3, 24, EC, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 40, 90, 42, 00, FF, 15, 58, 71, 40, 00, 68, B8, 91, 40, 00, 68, 20, E4, 42, 00, E8, 8B, 27, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 79, 27, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

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

http://periodictableexplorer.com/.../PTQInstaller.exe

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