Malicious PDF — malware analysis report

Static analysis result for SHA-256 191f5b6491995f57…

MALICIOUS

PDF

68.8 KB Created: 2020-12-08 11:22:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-22
MD5: 9c0c9a23cbb0b61691c4f112c1b7214a SHA-1: 0fad962569e3f38ca0162acd0f7102ca654e4e0d SHA-256: 191f5b6491995f5792a4c1baa9ef16dc58ea29cfec311984c7b554b18eafe3e3
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafficel.ru/wb?keyword=arya%20movie%20all%20ringtones PDF link annotation
    • https://xelegiri.weebly.com/uploads/1/3/4/4/134435730/ab64664a4.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/fusidejebi/aadhaar_card_date_of_birth_update_form.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd0fd78cb11b25c09e6f09/1606225879879/99333980302.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0dbf0116eb00e3c4bba69/t/5fc2d07f2dd96f59184b421c/1606602880635/41589136959.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c3979919-3600-4482-9c61-914e200705ef/goal_setting.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbdfe9561e25426e1ff277f/1606286998206/central_route_to_persuasion_definition_example.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f651e1ea-7319-4e9d-bca0-879d72235ce6/plus_size_bikini_models_youtube.pdfIn PDF document text
    • https://s3.amazonaws.com/foneniz/nosiz.pdfIn PDF document text
    • https://s3.amazonaws.com/sefabe/computational_thinking_concepts_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/rezugekolaba/13442903249.pdfIn PDF document text
    • https://s3.amazonaws.com/zemunomipazikez/minnie_mouse_red_bow_template.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_off0000d07f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD07F 5156 bytes
SHA-256: 3b0f892bf93086a04387671518537d750ccc0ee2fc74570601174241316ceb61
font_01_sfnt_off0000e204.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE204 10768 bytes
SHA-256: d2f03b37deb199423438506079a31b94edb1e8b24393ba9c6950af836e96476f