Malicious PDF — malware analysis report

Static analysis result for SHA-256 2afd12e7fdbe3c68…

MALICIOUS

PDF

68.9 KB Created: 2021-02-13 18:25:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 0aab8072e8189b68fbf8c4d7a05c7c8c SHA-1: bcb628a77b258969a23496c596d56a7b5cb3a42e SHA-256: 2afd12e7fdbe3c6895355bce3221958335e765b4caf82c8d779fe4973d92d5dd
136 Risk Score

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
  • 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://leonvi.ru/123?utm_term=chromatic+scale+guitar+exercises PDF link annotation
    • https://cdn.sqhk.co/posojuvapono/6jjNhcF/revenge_of_samurai_warrior_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/suxugipajepo/hhhfFjj/ragumosof.pdfIn PDF document text
    • https://cdn.sqhk.co/livefivepa/hil4HTP/17120103515.pdfIn PDF document text
    • https://cdn.sqhk.co/medujebukoma/jjNjgge/boxing_fighter_arcade_game_with_gloves.pdfIn PDF document text
    • https://cdn.sqhk.co/tajiwikiter/OgittAZ/84301745843.pdfIn PDF document text
    • http://kowezuzapine.66ghz.com/zugaguwigafalimo.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/sitok/kadamban_full_movie_400mb.pdfIn PDF document text
    • https://s3.amazonaws.com/jeduzizonox/scheer_platform_cuts.pdfIn PDF document text
    • https://s3.amazonaws.com/likadojivivofu/47929220426.pdfIn PDF document text
    • http://lavususixufera.rf.gd/batarezofijukejegogodab.pdfIn PDF document text
    • https://s3.amazonaws.com/gekixadonuru/picture_frame_collage_template.pdfIn PDF document text
    • https://s3.amazonaws.com/jarirotexab/25875650589.pdfIn PDF document text
    • http://lavavoju.rf.gd/93779716025.pdfIn PDF document text
    • https://s3.amazonaws.com/jufowokedunod/vogue_paris_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/timituvupame/apa_citation_format_example_with_two_authors.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_off0000d208.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD208 5188 bytes
SHA-256: f31b8b8a4ba6494c1cc1e22bd472584bfd289d9bd7ecd9160f88514f2654de48
font_01_sfnt_off0000e378.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE378 10252 bytes
SHA-256: 2b893bba78a7a849ee806f8a7d2153799826975b0a31f73eb5ec957b0737ae4d