Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8858cfc8006d39…

MALICIOUS

PDF

61.1 KB Created: 2020-12-10 12:14:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 76d482d21a962024b8bc457f6bc66128 SHA-1: 0fff8cac5debec70e188a09e76913692f19ad94f SHA-256: 5d8858cfc8006d39d8d6d99ba58807b1ddacbd3c32f4ae1ff653cad1f1499c2f
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://cctraff.ru/wb?keyword=bawarchi%201972%20full%20movie%20free In PDF document text
    • https://cdn-cms.f-static.net/uploads/4404112/normal_5f9c0203e9ad0.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/dazuxujepov/bhangra_songs_dj_mix.pdfIn PDF document text
    • https://s3.amazonaws.com/bevarolimesale/bayesian_reasoning_and_machine_learning_david_barber.pdfIn PDF document text
    • https://s3.amazonaws.com/paxunu/25483048220.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc12cb3a13a450babf5d3f9/t/5fca042a887b444c615b53d6/1607074859271/40649858008.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc6769f1452f90b7f0b45ff/t/5fc83fd34b97230d05065da7/1606959059427/nicale_rector_attorney_in_anderson.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5438bb3f-0b78-4f70-933c-86d9ae0033f5/geometry_dash_apk_2.111.pdfIn PDF document text
    • https://s3.amazonaws.com/remeranexe/brown_university_tennis_team.pdfIn PDF document text
    • https://s3.amazonaws.com/wusone/doxunifibujilejekoweka.pdfIn PDF document text
    • https://s3.amazonaws.com/wifiduxezo/nemulumefojudivunipeke.pdfIn PDF document text
    • https://s3.amazonaws.com/dinigugaxej/film_boboiboy_galaxy_episode_7-_13.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df9aa4c1-2fed-4aca-abdb-073c572ffd9f/oklahoma_tag_renewal_covid.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_off0000b1e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1E3 5564 bytes
SHA-256: 326c2545f8ef883f3e0ff4527331983b50143aa49a621714140b3b3858edcafa
font_01_sfnt_off0000c4cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC4CF 10324 bytes
SHA-256: 74cb4afeec02c3462bd864c2bb1ffd14a1485e09110ce5f327810cc53ac87857