PDF malware analysis — malicious · 445340ac8cb408c1

MALICIOUS

PDF

79.4 KB Created: 2021-09-12 21:08:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-10

MD5: 1bf9509b8d2a0439f08c20b36965a05d SHA-1: 29daad64bd3ab93c74ee3eb5e512a76685524c57 SHA-256: 445340ac8cb408c12ed6a00456dc23cf06cfb33cfcf8bcd77c7653e918266642

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9960

Heuristics 6

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

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM

PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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 http://www.oiseaubleu-promo.fr/userfiles/file/20940623186.pdf In PDF document text
- http://baoveantam.org/upload/files/76306621153.pdfIn PDF document text
- https://optimuselearningschool.aels.edu/learning/site/images/uploadfiles/1353712123.pdfIn PDF document text
- http://www.recko.ru/ckfinder/userfiles/files/noxabipodadajuze.pdfIn PDF document text
- https://infosantiere.ro/userfiles/file/fukonafuwimipobafupodozak.pdfIn PDF document text
- https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131bc8c76fd7---60565026060.pdfIn PDF document text
- http://viettelhaiphong.me/data/dulieu/files/73802085320.pdfIn PDF document text
- http://sakem.org/userfiles/files/toliwowapozijejitip.pdfIn PDF document text
- https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fb592316c6---rafobipezidurani.pdfIn PDF document text
- http://mamtomchabahai.com/uploads/files/files/lotizarefavisosebezonatap.pdfIn PDF document text
- http://art-wonders.com/ckeditor/ckfinder/core/connector/php/uploads/files/47101537735.pdfIn PDF document text
- http://tootingtaxi.com/survey/userfiles/files/zumekepolifo.pdfIn PDF document text
- http://sushikyototogo.com/uploads/files/57440592422.pdfIn PDF document text
- http://hosungtour.net/FileData/ckfinder/files/20210909_35A690724C347F39.pdfIn PDF document text
- https://xn--espaoldetalca-lkb.cl/var/www/html/upload/file/87669132838.pdfIn PDF document text
- https://www.passion-rnd.com/upfile/files/2021/09/07/3710941461.pdfIn PDF document text
- http://architettoletiziamasciotta.eu/userfiles/files/54541680620.pdfIn PDF document text
- http://goref.ru/files/file/2351186741.pdfIn PDF document text
- http://zjqzzx.com/uploadfile/file/2021091103553073499.pdfIn PDF document text
- http://tokyosushilohaus.com/uploads/files/segasomuviminif.pdfIn PDF document text
- http://www.brickchamber.com/ckfinder/userfiles/files/malodoxaxefevapep.pdfIn PDF document text
- https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/e5c0c83ce805860b3fa21f7575f72b28/vagidiketamizilaxemova.pdfIn PDF document text
- http://kirilmazbardak.com/userfiles/file/42577037392.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=fnaf+ucn+free+playPDF link annotation
- 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_off0000d1f2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD1F2	18372 bytes
SHA-256: `0078b61e0aed752504fc01406c938d83a2d5fd46b50606165d3207cc69350415`
`font_01_sfnt_off000101d2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x101D2	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off000119e9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x119E9	10184 bytes
SHA-256: `a79f5068b6c8d8fd94c8efce0d87dbc912e316dff3e62d1ba7e5b3e452187f4a`

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