Malicious PDF — malware analysis report

Static analysis result for SHA-256 14609f6d6a834892…

MALICIOUS

PDF

70.9 KB Created: 2021-02-28 00:27:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 98c6adfb72d2bfda0a84434cfc9a804a SHA-1: 08a9afabf9e0705260a3a2b172deb579daa46e7f SHA-256: 14609f6d6a834892c02772812f7ec7b2b8297b13685aa6d7bcc5dba919503853
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded URLs, many of which point to disposable domains and are flagged as potentially malicious or unknown. The document body, though heavily obfuscated, suggests a lure related to a popular book, aligning with phishing or malware distribution tactics. The ML classifier and ClamAV detection strongly indicate malicious intent, likely involving the redirection of users to external sites for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://vilenefex.ru/award?keyword=python+crash+course+2nd+edition+pdf+free PDF link annotation
    • http://13millions.store/lugujdum3z.pdfIn PDF document text
    • http://juzezudusota.mypressonline.com/bizafo.pdfIn PDF document text
    • http://dotenipago.medianewsonline.com/netolon.pdfIn PDF document text
    • http://suzofovolavuk.scienceontheweb.net/viwowofewekojoforofur.pdfIn PDF document text
    • http://vvd.bar/350622094097i2yg.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373301/normal_6002a25888901.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454306/normal_60030bae490e0.pdfIn PDF document text
    • http://derilezin.sportsontheweb.net/how_do_i_reset_my_alpine_radio.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458390/normal_602543fb6cfb1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374364/normal_602622ec92283.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449009/normal_5ff0b3ad0c005.pdfIn PDF document text
    • http://aazzzry.space/vekerikaxenoz8mqnt.pdfIn PDF document text
    • http://lulopoboxefon.scienceontheweb.net/17199339863.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fuzafuzeruwit/panasonic_toughpad_fz_g1_user_manual.pdfIn PDF document text
    • http://mawokale.myartsonline.com/93645924539.pdfIn PDF document text
    • https://s3.amazonaws.com/nitidadufetenu/canales_de_comunicacion_externa.pdfIn PDF document text
    • http://kepagewav.atwebpages.com/wilugirimogomemexogivil.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d876.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD876 5448 bytes
SHA-256: 6f398516a096a036e2b27f15454a5faa0c12b57955d5f52cd14b70481ace2eb4
font_01_sfnt_off0000eb02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB02 10344 bytes
SHA-256: e1773c82e7b651965eaedaa46d07134ad949ad83deef73526f931938e3d4f528

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