Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b6170b95f54c92e…

MALICIOUS

PDF

377.6 KB Created: 2023-10-17 22:03:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-17
MD5: 5380efc6a23a98a26e483b0dcc6aa2e0 SHA-1: bb7a0087d89ce1921474592e4e147647fb958e20 SHA-256: 2b6170b95f54c92e3f44ced36dc010b01616e0f440b3f712335db9e5413016ce
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9727

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://duxexe.sunuf.co.za/1253686419590915487705?xuvuzanuwifelufidomapiparijizeluxizoveferagadixukitujudofuvofipefafejafedifudemudapimibo=vatabirijolukijagekojepasowafuxojedimuseboxivakojaxiwilujasafufujoluvasifufojixaraxonezazedevidurelilidemevasizinalegofixakamigexudivalevunuvosematemidigekosunelixifesewatexadojopidaribilujalowebirolikunigosori&keyword=attachment+style+questionnaire+asq+pdf&lumojibovulemosegukofojatewuserokabulurejozasulakapuwonabizixaludutifupurumezasotoximabo=gavomininuxenubuloxobejuvagolutelosukopubufovisuwokulafitapuxirirarosubaxobodobuxikafuzanoziguzazitalamaf In PDF document text
    • https://duxexe.sunuf.co.za/1253686419590915487705?xuvuzanuwifelufidomapiparijizeluxizoveferagadixukitujudofuvofipefafejafedifudemudapimibo=vatabirijolukijagekojepasowafuxojedimuseboxivakojaxiwilujasafufujoluvasifufojixaraxonezazedevidurelilidemevasizinalegofixakamigexudivalevunuvosematemidigekosunelixifesewatexadojopidaribilujalowebirolikunigosori&keyword=attachment+style+questionnaire+asq+pdf&lumojibovulemosegukofojatewuserokabulurejozasulakapuwonabizixaludutifupurumezasotoximabo=gavomininuxenuPDF link annotation
    • https://duxexe.sunuf.co.za/1253686419590915487705?xuvuzanuwifelufidomapiparijizeluxizoveferagadixukitujudofuvofipefafejafedifudemudapimibo=vatabirijolukijagekojepasowafuxojedimuseboxivakojaxiwilujasafufujoluvasifufojixaraxonezazedevidurelilidemevasizinalegofixakamigexudivalevunuvosematemidigekosunelPDF link annotation
    • https://img1.wsimg.com/blobby/go/4bfbbd39-77e0-4216-9d42-e4e4ea68611e/downloads/article_questions_for_class_3_with_answers.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/9fa6cdd4-fc09-4393-8962-08d39c33a5bc/downloads/nemanoxaxakazufonu.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/0d4543e4-3566-401f-9620-3fc899f6709d/downloads/glencoe_algebra_2_chapter_6_test_form_1_answer_key.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/e77a4f03-ae84-4a13-8e4c-5e50b074f3d3/downloads/patirofogefewexegufuf.pdfIn PDF document text
    • https://uploads-ssl.webflow.com/64ee07faff4dc2e9df1e7aa3/652e0dd3634605830cbf32f6_30653045628.pdfIn PDF document text
    • https://uploads-ssl.webflow.com/64f1ad1ad0246590df6d6f16/652e0ed03d52ecf481ef554e_21504696744.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/cfc17b79-3ab0-4778-a4c8-2034c7175f6a/downloads/is_brick_break_a_good_attack.pdfIn PDF document text
    • https://uploads-ssl.webflow.com/64ee183023cd69c17cd83529/652e0e8eaf44fe8ade2a330d_jusobinazisujabopa.pdfIn PDF document text
    • https://uploads-ssl.webflow.com/64ee01bc4e77173a20f080ed/652e0d26532c272ff4ee2512_96735212272.pdfIn PDF document text
    • https://uploads-ssl.webflow.com/64f1af38f675358d7586ca7e/652e0c151e95df1c73c78476_kubifototale.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058ea6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58EA6 17044 bytes
SHA-256: 57125e28103b4b77e61ecc6bbaef9c117424af71c786054e2ce89ed6fe0cb646
font_01_sfnt_off0005bb1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB1C 12436 bytes
SHA-256: 95fe3bd5380113ea4b70642f3fce5cd1fa04371b594144cfc27d34194b1c51e6

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