Malicious PDF — malware analysis report

Static analysis result for SHA-256 726375feb2be937d…

MALICIOUS

PDF

364.1 KB Created: 2022-01-30 08:00:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-11
MD5: d9e50e4d87818213d05c6c5de0bca41c SHA-1: 2c223c9bf1a7ab0f8add36af761c3d5a03e365ed SHA-256: 726375feb2be937d833b796cc33043f39c98cc9f91469ee63e1caf1895763dd4
251 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9667

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Viral-video clickbait PDF links to suspicious host critical SE_VIRAL_VIDEO_CLICKBAIT_LINK
    Document uses viral/leaked-video lure text and links to a suspicious disposable-looking web host. This is a clickbait/traffic-scam carrier shape rather than a benign PDF link.
  • 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.
  • PDF advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://sunuf.co.za/XSRYdR1H?utm_term=murmur+of+the+heart+1971+movie PDF link annotation
    • https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/f805724a9c9f513b0937e9f66b6416bf/14164023143.pdfIn PDF document text
    • https://auf.vn/wp-content/plugins/super-forms/uploads/php/files/vl4tpdsljtip62356pljr3kf73/42696394974.pdfIn PDF document text
    • http://studiosiriosrl.it/userfiles/files/56472433894.pdfIn PDF document text
    • http://www.autoservis-hubatka.cz/admin/upload/ww/file/gumapodetibesitixigola.pdfIn PDF document text
    • http://himalayakebab.com/shipinc/userfiles/files/wewuzasosutabadane.pdfIn PDF document text
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/ea6de698e675b234d1415b6b09cc771a/3613769326.pdfIn PDF document text
    • http://mikailang.com/userfiles/file/20210918053346_1938108072.pdfIn PDF document text
    • http://hamyarsanatco.com/ckfinder/userfiles/files/temewowe.pdfIn PDF document text
    • https://steklo-shik.ru/userfiles/file/ranozekuxoxenimupi.pdfIn PDF document text
    • https://jasmijnbloemengroen.nl/userfiles/file/gezur.pdfIn PDF document text
    • http://vidiniaibreketai.lt/userfiles/file/gakawojoduk.pdfIn PDF document text
    • http://vita24h.com/uploads/userfiles/file/numorulebofadududomemamib.pdfIn PDF document text
    • http://andreevka.topmebli.com/content/xuploadimages/file/41421311265.pdfIn PDF document text
    • http://strandedtattoo.net/file/65369067346.pdfIn PDF document text
    • https://sk-developers.com/wp-content/plugins/formcraft/file-upload/server/content/files/161d72db397616---42549238636.pdfIn PDF document text
    • http://andreevka.topIn PDF document text
    • https://kpk.1c.ru/admin/rc/ckeditor/kcfinder/upload/files/56812636807.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_off00054142.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00054142.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054142.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54142 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off000557e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x557E1 19372 bytes
SHA-256: 752104451fd01389d6bfbf6405e5fe7fab0a7d44066873b6bc0edd83523eb45c
font_02_sfnt_off000589f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x589F3 10588 bytes
SHA-256: f389081edc93b6e93b506b0038cb2eef9b16e08876df1eb8c150366da0c740ea