Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b8e8097001bdcd…

MALICIOUS

PDF

359.5 KB Created: 2022-02-06 11:49:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 41bb9ab76ec5a88926ee9908dedf8863 SHA-1: 2e2fdbba0cf05500849ec4717caa435ecce5d843 SHA-256: 72b8e8097001bdcda7234b4ebd024bb6d19dff8324cbc09050f90712475d0106
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8301

Heuristics 6

  • 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.
  • 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://yoyep.co.za/XSRYdR1H?utm_term=batata+doce+laranja+informa%C3%A7%C3%A3o+nutricional PDF link annotation
    • http://suvenirzp.com/uploads/files/jufetosokewiz.pdfIn PDF document text
    • http://carrozzeriabosini.net/userfiles/files/8903217488.pdfIn PDF document text
    • http://galettedesrois.hu/userfiles/file/27710388748.pdfIn PDF document text
    • https://www.takaotakano.com/kcfinder/upload/files/katoxefinudodujosawod.pdfIn PDF document text
    • http://normel.org/files/upload/file/gekijobiti.pdfIn PDF document text
    • https://gemwares.com/userfiles/file/zumuzimovowemow.pdfIn PDF document text
    • http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/161440b3e742eb---mawopodedonanowotabunej.pdfIn PDF document text
    • http://brandiassociati.it/userfiles/file/lefiwufo.pdfIn PDF document text
    • https://isabellepieman.com/userfiles/file/bisafizupe.pdfIn PDF document text
    • http://csc0532.com/userfiles/file/20210802131521_llxpkl.pdfIn PDF document text
    • http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b4489cd9d08---38401977091.pdfIn PDF document text
    • https://ctcitsupport.com/media/files/nivadususe.pdfIn PDF document text
    • http://ekorob.pl/userfiles/file/96217659279.pdfIn PDF document text
    • https://nucamsa.es/userfiles/files/31136276159.pdfIn PDF document text
    • http://eventclub.pl/userfiles/file/24642490593.pdfIn PDF document text
    • https://www.isgs.org/wp-content/plugins/super-forms/uploads/php/files/2deef79969351b261ab1471091c65093/pukezar.pdfIn PDF document text
    • https://curtain.jinware.com/upload/files/62450748592.pdfIn PDF document text
    • http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1616936315dd80---jekaweg.pdfIn PDF document text
    • http://zsmnowakowski.pl/userfiles/file/megakexerokoju.pdfIn PDF document text
    • https://laborator.hyron.ro/mm/file/duwanadoletuwad.pdfIn PDF document text
    • http://adveotec.com/img/file/xiginovabadafinosi.pdfIn PDF document text
    • http://smenergy.kr/uploaded/file/12160384686150e1a692582.pdfIn PDF document text
    • http://studiomanzella.com/userfiles/files/94270634.pdfIn PDF document text
    • https://ppkh.net/userfiles/file/goxamed.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052cfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52CFD 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0005441d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5441D 11216 bytes
SHA-256: 963e3c69b399ff0795b2e8b3305ec38a5b570e493a2a1a941f4d766779d263ed
font_02_sfnt_off00055d9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55D9A 19160 bytes
SHA-256: 92ac916c78f95cb71e6a80753a05eba3c1ef0f77fff8ccdb8559ff83679c6f5c