Malicious PDF — malware analysis report

Static analysis result for SHA-256 79439527f6999a9c…

MALICIOUS

PDF

74.3 KB Created: 2021-04-05 15:44:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c7972dae6297b48be98d095bd6c2182f SHA-1: 7a8ae15d363971333cb728a22d57bd5701655662 SHA-256: 79439527f6999a9c850edc91111e899fac942bb14577ebac5aff31a93ebfdf1e
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristic 'PDF_SEO_UTM_REDIRECTOR_LINK' specifically points to a phishing lure using an SEO redirector, disguised as a free download. The embedded URL, https://fokemale.ru/123?utm_term=cool+lego+wallpapers+hd+free, is the primary indicator of this phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://fokemale.ru/123?utm_term=cool+lego+wallpapers+hd+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4390374/normal_5fd7b60c5a4aa.pdfIn PDF document text
    • http://gogotmif.space/clinical_pharmacology_and_therapeutics_bookbkkl1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489844/normal_5fdf912e56d7e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459936/normal_5fca67270e1a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476566/normal_600c9cf485712.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482426/normal_5ff962366a22a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500417/normal_5ffd6ad7de148.pdfIn PDF document text
    • http://qrastenmap.online/free_esl_english_classes_for_adults_near_meutc30.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489994/normal_60123622034bc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423133/normal_5fd16f4ad9d08.pdfIn PDF document text
    • http://nudistoff.club/lovetoboso3zqot.pdfIn PDF document text
    • http://songkfrk.site/69678827559pkacl.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ximitexus.epizy.com/78516580630.pdfIn PDF document text
    • http://kegigija.atwebpages.com/26288932296.pdfIn PDF document text
    • http://damokoz.epizy.com/kiros.pdfIn PDF document text
    • http://wesovipimamino.epizy.com/6_month_probation_review_questions_and_answers.pdfIn PDF document text
    • http://peledopa.myartsonline.com/bomitufoxobapijag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4d2b934-f93c-40ba-9443-069cf6e3f6c2/basic_math_skills_assessment_printable.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6591b385-5eaf-4d0c-bd07-037878667fcd/85437298921.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb170406-a77b-476b-a6a5-7c6e78cade23/lirozitugurabemovud.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e63f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE63F 5300 bytes
SHA-256: 37c22a18808423f25484f6a7e87b4e1746c1354cb8c0e698f12a54f68711c876
font_01_sfnt_off0000f84e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF84E 10328 bytes
SHA-256: 8064a7fda84a4cc1c3927244d50c790e1f0630fe36cb486ab66734fba30591d3

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