Malicious PDF — malware analysis report

Static analysis result for SHA-256 72bf0dede9c8f628…

MALICIOUS

PDF

909.2 KB Created: 2021-11-28 02:49:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: dc52066fe32776819c6a9bedd5dd250e SHA-1: 6bfa48ef41283cea0f0b5dd90b88b4a166270295 SHA-256: 72bf0dede9c8f6283e8a650c0ac10e58b9a691be7a35492c9e129a8fa1af3ce4
136 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4901

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://dragoniresorts.com/userfiles/sumusare.pdf In PDF document text
    • https://reflections-series.gilmorgenstern.com/userfiles/File/tolekus.pdfIn PDF document text
    • http://wellnesszeewolde.nl/site/data/ws/files/wixipevemoximokujerumox.pdfIn PDF document text
    • http://gerd-pollak.de/userfiles/file/56320624132.pdfIn PDF document text
    • http://888spirits.com/userfiles/file/gumevaxunuwixuwibom.pdfIn PDF document text
    • https://mjrspot.com/fckimages/file/30309269315.pdfIn PDF document text
    • https://drproperty.in/userfiles/file/80783790141.pdfIn PDF document text
    • https://hanyauntuktesting.com/contents/files/nuvomonokazepugelemukeset.pdfIn PDF document text
    • http://apexnepaltravel.com/userfiles/file/90964470544.pdfIn PDF document text
    • http://huyminhplastic.com/upload/files/73907080267.pdfIn PDF document text
    • http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617a4a1caab44---97654009926.pdfIn PDF document text
    • https://inprovitmexico.com/ckfinder/userfiles/files/lovatarudaravavi.pdfIn PDF document text
    • http://ascensionchina.com/userfiles/file/49622038094.pdfIn PDF document text
    • http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/161314771b4cae---83120451844.pdfIn PDF document text
    • https://baxsporthorses.nl/userfiles/file/webimabizalow.pdfIn PDF document text
    • https://dedywiredja.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616e5ece52686---87686243462.pdfIn PDF document text
    • http://veganogle.es/uploads/ckfinder/files/84603326526.pdfIn PDF document text
    • http://fence-alarm.com/userfiles/files/sagewex.pdfIn PDF document text
    • https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/16155def62851d---36094515490.pdfIn PDF document text
    • http://xn--9i1b14lzokxjcrti5um.com/upload/fckeditor/file/xobosajipod.pdfIn PDF document text
    • http://juentai.com/userfiles/files/36755637577.pdfIn PDF document text
    • http://stephan-kratt.de/data/reiterhof/userfiles/file/82834798778.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/23D8k0Ec_6w/uplcv?utm_term=nat+turner+kyle+baker+summaryPDF 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_off000dc07a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC07A 18904 bytes
SHA-256: d9a0569d0b630bd6d4514cb15116fc795b725e1efc0b4b1c3a2683f6b4d6f90f
font_01_sfnt_off000df223.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF223 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off000e08d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE08D3 10480 bytes
SHA-256: 857d112484164dd2f816d8ce88727a3b01a3ba535cb767464dd0314bd182cdf9