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installer_pdf_download.exe

Inffinity Internet

The application installer_pdf_download.exe by Inffinity Internet has been detected as adware 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 download.phpnuke.org.
Publisher:
Inffinity Internet  (signed and verified)

MD5:
9bfda8745f121fc1eefd1b5fd68597ba

SHA-1:
83792ac532577ee9d277f9f07755b105159bba10

SHA-256:
3a2248c5f17bc33bb5c9ffb05811c69aba387c8cd4576be7a3f3a4c1a0a2b84c

Scanner detections:
1 / 68

Status:
Adware

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.

Analysis date:
4/25/2024 8:17:29 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Inffinity (M)
16.8.9.6

File size:
1.4 MB (1,478,272 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

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

Digital Signature
Signed by:
Inffinity Internet

Authority:
Thawte, Inc.

Valid from:
1/18/2012 7:00:00 AM

Valid to:
1/18/2013 6:59:59 AM

Subject:
CN=Inffinity Internet, OU=Internet, O=Inffinity Internet, L=Madrid, S=Madrid, C=ES

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
1E478AE33382A025ECAE98EF6ADEE5BB

File PE Metadata
Compilation timestamp:
12/6/2009 5:50:52 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
24576:JERizh36rA0CzFvnsm6iGbQ/oIKikelvQ0ZTIz7O7nF:Civ1B0hi5A8TIiF

Entry address:
0x30FA

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 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, 18, EC, 42, 00, E8, F1, 2B, 00, 00, A3, 64, EB, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 98, 8F, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 60, E3, 42, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, 40, 43, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23.5 KB (24,064 bytes)

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

http://download.phpnuke.org/o/en/.../installer_pdf_download.exe

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