Malicious PDF — malware analysis report

Static analysis result for SHA-256 f878d20a5e02c085…

MALICIOUS

PDF

246.6 KB Created: 2021-12-15 20:33:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-16
MD5: 7715eaed13dff61edf7a6e05858bfd80 SHA-1: 6426a34c5c1de6a0ed4626b45da3edf85f0a0661 SHA-256: f878d20a5e02c085fa168a3569776817325a972b3c7d5a34f902c9ab26e89796
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8006

Heuristics 7

  • 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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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 http://avvocato-callegaro.it/public/file/teluzuwavo.pdf In PDF document text
    • http://telegid.tv/userfiles/file/84956954627.pdfIn PDF document text
    • http://fantalife.nl/userfiles/file/94068686147.pdfIn PDF document text
    • http://attlas.center/userfiles/file/35302207075.pdfIn PDF document text
    • https://suavitinhtannha.net/upload/files/wusepawilezaga.pdfIn PDF document text
    • http://sinbad.sy/admin/kcfinder/upload/files/selirifumodojos.pdfIn PDF document text
    • http://alhegazgroup.com/userfiles/file/kegezu.pdfIn PDF document text
    • http://kehlux.lu/userfiles/files/70246370319.pdfIn PDF document text
    • https://ventadeterrenosagricolas.com/userfiles/file/towinubinokovebe.pdfIn PDF document text
    • https://interference.ajoda.eu/userfiles/files/86965112980.pdfIn PDF document text
    • http://live-net.it/file/debejobaxonakuridore.pdfIn PDF document text
    • https://dunakanyarfesto.hu/ckfinder/userfiles/files/zotemiduxadeguje.pdfIn PDF document text
    • http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1617f5cd55aa83---23632007638.pdfIn PDF document text
    • http://www.sczct.com/up_files/file/gijigutofuwamezub.pdfIn PDF document text
    • https://ssmahavidyalaya.org/lion/uploadedfiles/fck/files/file/6204058426.pdfIn PDF document text
    • http://loby-scieries-dunkerque.fr/userfiles/file/setinisurunedadiz.pdfIn PDF document text
    • http://salocchi.it/userfiles/files/muripubobufupa.pdfIn PDF document text
    • https://makenie.com/upload/files/41695930693.pdfIn PDF document text
    • https://etravelbox.com/scgtest/team-explore/uploads/files/45713171795.pdfIn PDF document text
    • http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/4r6r7prg69gpa7irbhqtjt3e35/84635871769.pdfIn PDF document text
    • https://geneticapanama.com/userfiles/file/31993797250.pdfIn PDF document text
    • http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/cd0ce56dac9e8cac08929e3d378814ec/belisaxinaxowupusivavuvaj.pdfIn PDF document text
    • https://fairtradeportal.pl/userfiles/file/dobaxemurevajomuduligufe.pdfIn PDF document text
    • http://naim.naparts.com/images/fck/file/xonoxubol.pdfIn PDF document text
    • http://rentappli.com/tinymce/jscripts/tiny_mce/plugins/phpimage/phpimage/upload/images/file/97955560621.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/RC0zOYPQW8A/uplcv?utm_term=which+is+the+best+free+dawPDF link annotation
    • 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00036f81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36F81 10520 bytes
SHA-256: 885b97b1dbc7170a33e2e22f01c009ca93efd5fdd0bda05974419d89e0e6aac4
font_01_sfnt_off000387a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x387A8 17436 bytes
SHA-256: 474ba5b184e198b7c0cbf3129dad9fa2e9d58a99a137507960c6fa36c822dabf
font_02_sfnt_off0003b505.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3B505 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336