Malicious PDF — malware analysis report

Static analysis result for SHA-256 478c6da20c8669a8…

MALICIOUS

PDF

254.7 KB Created: 2021-12-24 02:37:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 2e01cd82f80a9486e52d890baee1b23c SHA-1: 0e2701c18c0551e63bda4726dd40b52287552b90 SHA-256: 478c6da20c8669a80a3eed74cac4c0b06deeb1485e2cb3a2951464e10edb8d80
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8029

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 http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161c23d5a76b2d---72755551282.pdf In PDF document text
    • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/qd928e2s7n07sr59u19dg84460/56870778926.pdfIn PDF document text
    • http://hzkontejnery.cz/ckfinder/userfiles/files/sazuzezira.pdfIn PDF document text
    • https://vadihosting.com/calisma2/files/uploads/kefuwuzadikefesowav.pdfIn PDF document text
    • https://almondzwealth.com/administrator/imagetemp/file/24173894323.pdfIn PDF document text
    • http://kalbaninc.com/userfiles/file/tuwubofefa.pdfIn PDF document text
    • http://maraulsan.com/ckfinder/userfiles/files/96890487926.pdfIn PDF document text
    • http://capitaldanceacademy.com/userfiles/files/minixedotikevitizeraves.pdfIn PDF document text
    • http://abnicum.ru/files/file/40293124448.pdfIn PDF document text
    • https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/ebc804fdac9b8b9a1673c9f7d2343d74/mutuwinoragagobifojutef.pdfIn PDF document text
    • http://rw-hse-businessconsulting.de/userfiles/file/65669878283.pdfIn PDF document text
    • http://rasciindia.com/firetech/ckupload/files/8759175378.pdfIn PDF document text
    • http://paneldeconsos.com/userfiles/file/60382653207.pdfIn PDF document text
    • https://marblobath.com/app/webroot/img/files/xidogonosedefeparudepewa.pdfIn PDF document text
    • http://twtqedu.com/userData/ebizro_board/file/53129835856.pdfIn PDF document text
    • https://fontaine-eva.fr/userfiles/files/sufakar.pdfIn PDF document text
    • https://sydneystudytour.com/accounting/userfiles/file/gexuvixug.pdfIn PDF document text
    • http://www.ebsjosepirosamaria.com/wp-content/plugins/formcraft/file-upload/server/content/files/16199dfb23d7f8---bofazitigokixafafut.pdfIn PDF document text
    • http://okmarin.ru/userfiles/file/81136187590.pdfIn PDF document text
    • http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/1616fb1530e843---nafesuwixokuvujew.pdfIn PDF document text
    • http://justsayhi365.com/uploads/file/kotarakopoxodixi.pdfIn PDF document text
    • http://drsuthichai.com/userfiles/files/20735586271.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/23D8k0Ec_6w/uplcv?utm_term=archi+archimate+templatesPDF 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_off00038ccc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38CCC 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0003a370.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A370 10396 bytes
SHA-256: f1b0d5eaeffc4cd3aa573ea180e295153c01ab200dc1d9900c71e2f3db4aeb90
font_02_sfnt_off0003baf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BAF8 18328 bytes
SHA-256: 1545ec901c3bb8028ab6e52015569db53643850e06fa8dfc39104dad02506a7c