Malicious PDF — malware analysis report

Static analysis result for SHA-256 78242876ab30725a…

MALICIOUS

PDF

71.5 KB Created: 2021-02-17 01:29:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-16
MD5: 98ade1c0403731e9e10c46fce1d65749 SHA-1: 80294033228cd844cee616db76952a23644d7c31 SHA-256: 78242876ab30725ab7ca46876d07f9f34b7c76303d6ebf7a143a031a3cdaf981
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://leonvi.ru/123?utm_term=summary+of+shakespeare%2527s+sonnet+55 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4420476/normal_6016cb058f37a.pdfIn PDF document text
    • https://cdn.sqhk.co/tokokoxisuf/Rjdibsu/37842066073.pdfIn PDF document text
    • https://sufusaripowo.weebly.com/uploads/1/3/1/4/131437865/laxabupepijaratu.pdfIn PDF document text
    • https://mukavotedi.weebly.com/uploads/1/3/1/8/131856112/1943483.pdfIn PDF document text
    • https://cdn.sqhk.co/dijogiper/ihdKwjc/cartoon_wallpapers_for_mobile_phones.pdfIn PDF document text
    • https://jopokoguse.weebly.com/uploads/1/3/0/8/130874396/wigobuxole-kurixipugeruvaf-negeko-wemewakugiz.pdfIn PDF document text
    • https://kazumole.weebly.com/uploads/1/3/1/4/131454435/jinejoke_kivuka_biwugipugebetu_sedesi.pdfIn PDF document text
    • https://nowiwadigomu.weebly.com/uploads/1/3/4/0/134018048/mizukuraburexexon.pdfIn PDF document text
    • https://xitokudid.weebly.com/uploads/1/3/4/6/134688137/3173595.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370052/normal_6012871751b9d.pdfIn PDF document text
    • https://vuxuminitemup.weebly.com/uploads/1/3/0/8/130874085/vofoset_putato_rejel.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368758/normal_601306588ac72.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ruvatarojamun.rf.gd/qualifying_child_tax_credit_worksheet.pdfIn PDF document text
    • http://gewumene.epizy.com/phonics_cvc_worksheets.pdfIn PDF document text
    • http://forolulazo.rf.gd/abbaigaru_pelli_movie_songs_ing.pdfIn PDF document text
    • http://mewuxizu.rf.gd/emotional_intelligence_questionnaire_free.pdfIn PDF document text
    • http://wepinipinalojud.epizy.com/4627654046.pdfIn PDF document text
    • http://wogirajixamaw.epizy.com/60152986341.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_off0000d99d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD99D 5536 bytes
SHA-256: 98d6b8e02bce2462996ce0a09917f1eb7a9b60a59168101c25a021cf60a1b3f9
font_01_sfnt_off0000ec58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC58 10724 bytes
SHA-256: aac7bee160ed95b55685709c9cf11007a9b26cce96ef114627590630ea13088b

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