Malicious PDF — malware analysis report

Static analysis result for SHA-256 5524cce871515359…

MALICIOUS

PDF

329.0 KB Created: 2022-02-24 08:17:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-19
MD5: dd7d56e90b258f65119e17de47d957f3 SHA-1: 29a24c86c73731804d0786bfba93dc881f51309b SHA-256: 5524cce871515359d29ec714406f0af1f206db30cc13288b9eb75a8ac08a1669
386 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7480

Heuristics 11

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • QR business lure with obfuscated text critical PDF_QR_BUSINESS_LURE_OBFUSCATED_TEXT
    PDF contains a QR-like image and business-process scan instructions that only match after removing invisible Unicode control characters. This indicates deliberate text obfuscation in a QR phishing lure rather than a normal QR code.
  • QR-code business verification phishing lure high PDF_QR_PHISHING_LURE
    PDF contains a QR-like image and visible text instructing the recipient to scan or use a QR code for verification, HR, payroll, policy, email, signature, or similar business-process activity. This is a high-signal quishing pattern even when the PDF has no active JavaScript or URI action.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • QR business-process phishing lure high SE_QR_BUSINESS_PROCESS_LURE
    Document asks the recipient to scan a QR code in an HR, payroll, compensation, employee-handbook, DocuSign, or business-signature workflow. This is a high-signal quishing/social-engineering pattern even when the QR payload cannot be decoded statically.
  • 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=arya+movie+audio+songs PDF link annotation
    • http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/1610d990a88dc5---95236143974.pdfIn PDF document text
    • http://kapfenberger-schuetzenverein.at/userfiles/file/morigaba.pdfIn PDF document text
    • http://aadcnfgl.netsociality.com/upload/files/pofotadijegijukekabu.pdfIn PDF document text
    • http://goteneplast.se/files/images/file/nijefikevaxasutu.pdfIn PDF document text
    • https://groupekineconcept.com/userfiles/file/pukakebebezax.pdfIn PDF document text
    • https://jck.ro/userfiles/file/vobidefexagexeboxidofasox.pdfIn PDF document text
    • http://ambulatorioveterinariocigliano.com/userfiles/files/boritas.pdfIn PDF document text
    • https://iphastkala.com/userfiles/file/fafososadoxivigiwowib.pdfIn PDF document text
    • https://tumsad.org/img/editor/image/file/gafonitivimizuwoguloxi.pdfIn PDF document text
    • http://spynet.gr/Administrator/uploads/userpics/OutPostImages/files/11456849112.pdfIn PDF document text
    • https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/eede03a470c185fcd0695809625f353b/wapipi.pdfIn PDF document text
    • https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/67e2a786b9eb8456493682d827eef409/sopuwutevexet.pdfIn PDF document text
    • http://goddesshair.net/upload/users/files/39185311714.pdfIn PDF document text
    • https://coebmsf.com/userfiles/file/78781192590.pdfIn PDF document text
    • http://babyindex.nl/images/uploads/suwalufubizewaxevax.pdfIn PDF document text
    • http://senseoftourism.dk/userfiles/file/10315859226.pdfIn PDF document text
    • http://bapassamarinda.id/assets/ckfinder/core/connector/php/uploads/files/risonawukamazapuxo.pdfIn PDF document text
    • https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160ff2e6c3b7de---46334369053.pdfIn PDF document text
    • http://argyleliquidations.com/userfiles/files/bexariwizawatutana.pdfIn PDF document text
    • http://flapboxes.custompackageboxes.com/userfiles/files/61793686179.pdfIn PDF document text
    • https://taichielite.com/louis/taichi/ckfinder/userfiles/files/nexosiwigobit.pdfIn PDF document text
    • http://reedxtrainternational.com/uploads/pages/file/62693121779.pdfIn PDF document text
    • http://zamel2.pl/userfiles/file/kikezowifobofufeze.pdfIn PDF document text
    • https://qpshouse.com/upload/image/file/18967270034.pdfIn PDF document text
    • https://roofmed.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161e28d2625847---rogaxozanevew.pdfIn PDF document text
    • https://srldirect.com/ckfinder/userfiles/files/xamipo.pdfIn PDF document text
    • https://okazionche.com/files/jolozabej.pdfIn PDF document text
    • http://tantos.jp/js/upload/files/66953146964.pdfIn PDF document text
    • http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620d89a885d1a---kexadubed.pdfIn PDF document text
    • http://sosnovgeo.ru/userfiles/file/budumefinulude.pdfIn PDF document text
    • http://thaymanhinhlaptop.com/userfiles/file/41660956287.pdfIn PDF document text
    • http://rujiahk.com/uploadfiles/file/16541984155.pdfIn PDF document text
    • https://bindazzled.com.au/wp-content/plugins/super-forms/uploads/php/files/5d285058dad3b1e5545997e5f0019b4c/41639684009.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 extracted file (font_00_sfnt_off0004aef7.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004aef7.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004aef7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AEF7 20784 bytes
SHA-256: a2f5b4c28a997b7ccd6e70393908f4550d7db056e5281c99154a9a2697b5f1d8
font_01_sfnt_off0004e55a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E55A 10708 bytes
SHA-256: af12b13173ce06c6a62a027e093a1ae422e36b5ef24b70d369ed77e2b5627383
font_02_sfnt_off0004fdc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FDC3 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9