PDF malware analysis — malicious · af21b0ad2c1a445e

MALICIOUS

PDF

70.6 KB Created: 2021-10-08 05:51:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22

MD5: 357d9d420769c4bd17099b61f0800acd SHA-1: ff830507920f0f51d03abd8ee168f5349a5802d2 SHA-256: af21b0ad2c1a445eb60db2c46563a66a151c401c9217edbceac724ac721e0328

126 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9951

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://coretry.ru/uplcv?utm_term=arithmetic+progression+calculator+with+steps PDF link annotation
- https://rmduncanrealty.com/userfiles/files/51720200559.pdfIn PDF document text
- https://financenetwork1.treasuryandfinance.info/userfiles/file/45461031171.pdfIn PDF document text
- https://maintogelonline2.org/contents/files/41367123065.pdfIn PDF document text
- http://rjt1.org/upload/files/91877695290.pdfIn PDF document text
- https://nsaimmigration.com/userfiles/file/jokanigugeguvuvizixa.pdfIn PDF document text
- https://ermolino.mebel18.com/uploads/files/52858355599.pdfIn PDF document text
- http://files.ibiza-ferien.de/file/tavobowikag.pdfIn PDF document text
- https://quizai.com/uploads/files/27551787638.pdfIn PDF document text
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/bi73sdld75ckc86ghctmvplqiq/83204643622.pdfIn PDF document text
- https://apexsafetyproducts.com/ckfinder/userfiles/files/83018826696.pdfIn PDF document text
- http://rld-carbon.com/file/rabokijuwupijigidevur.pdfIn PDF document text
- http://chapaconoticias.com/assets/ckfinder/core/connector/php/uploads/files/44166624111.pdfIn PDF document text
- http://fence-alarm.com/userfiles/files/22333846333.pdfIn PDF document text
- http://innotack.com/userfiles/files/2574321843.pdfIn PDF document text
- https://transport.frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/vowizumelezugamimi.pdfIn PDF document text
- http://kondicionery-elektrostal.ru/upload_picture/file/wonevu.pdfIn PDF document text
- http://www.sana-anong.com/ckeditor/ckfinder/userfiles2/files/59255646695.pdfIn PDF document text
- http://jfhcoaching.com/userfiles/files/xekogexifelitedofogat.pdfIn PDF document text
- http://dungcubepgiangtrinh.com/webroot/img/files/xolopurilijetavixoxefo.pdfIn PDF document text
- https://landtop.com/filespath/files/20210905190155.pdfIn PDF document text
- https://worldpigment.com/image/upload/File/vobibesimeduxadetekez.pdfIn PDF document text
- https://locktactyuma.com/userfiles/file/nozal.pdfIn PDF document text
- https://beauty-full.ru/uploads/files/sololisisasag.pdfIn PDF document text
- http://fobosgrunt.ru/files/ckfinder/files/jusikafunom.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000b254.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB254	16092 bytes
SHA-256: `051e66667b2dbc6b0bcf8b3cf2839284cb5ea2eaa70630a986ad8dd1ab7be013`
`font_01_sfnt_off0000db93.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDB93	10988 bytes
SHA-256: `fcc6bda7f6801dba795e0c508c0f8493ca35898a087ff25ef8a759646462161c`
`font_02_sfnt_off0000f504.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF504	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

Open this report in the interactive analyzer, or submit your own file for analysis.