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firstpdfinstaller.exe

The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer. The file has been seen being downloaded from www.pdftoword.us and multiple other hosts.
MD5:
5079d83096b6e483577277f5720aba72

SHA-1:
0b90039eaaca70a9427e01fa6be2d78a50eb4fe5

SHA-256:
ae87e7cbe116879ba0c8454915458df806806cf0261bee5c6dc31c9255ab2921

Scanner detections:
2 / 68

Status:
Clean  (2 probable false positive detections)

Explanation:
These detections are probably false positives (erroneous), the file is probably malware free.

Analysis date:
4/24/2024 9:40:03 PM UTC  (today)

Scan engine
Detection
Engine version

Emsisoft Anti-Malware
Gen:Variant.Kazy.298434
8.13.12.23.12

Trend Micro House Call
TROJ_GE.2C67C82B
7.2.357

File size:
27.9 MB (29,305,051 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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

File PE Metadata
Compilation timestamp:
5/20/2013 1:53:02 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
786432:yYkNVRBj8rs+3LAuxXV1CJ+uN95FpsOwPz0m:y1VYrsAEuxiPfpsOAz0m

Entry address:
0x310B

Entry point:
81, EC, 84, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 1C, C7, 44, 24, 10, 90, 91, 40, 00, 89, 5C, 24, 18, C6, 44, 24, 14, 20, FF, 15, 34, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 8C, 72, 40, 00, 6A, 08, A3, 58, EC, 42, 00, E8, 6E, 2D, 00, 00, A3, A4, EB, 42, 00, 53, 8D, 44, 24, 38, 68, 60, 01, 00, 00, 50, 53, 68, E0, 8F, 42, 00, FF, 15, 64, 71, 40, 00, 68, 80, 91, 40, 00, 68, A0, E3, 42, 00, E8, 18, 2A, 00, 00, FF, 15, 1C, 71, 40, 00, BD, 00, 40, 43, 00, 50, 55, E8, 06, 2A...
 
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Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

The file firstpdfinstaller.exe has been seen being distributed by the following 3 URLs.

http://www.pdftoword.us/.../FirstPDFInstaller.exe

http://www.sautin.com/.../FirstPDFInstaller.exe

http://pdftoword.us/.../FirstPDFInstaller.exe

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