Malicious PDF — malware analysis report

Static analysis result for SHA-256 14c04fd88e08d57c…

MALICIOUS

PDF

347.0 KB Created: 2022-01-13 11:34:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-18
MD5: ef54c9e196bebd9a24691c89163594b6 SHA-1: 038b0149fd6d44d57e9087708645812b3e26c004 SHA-256: 14c04fd88e08d57c735b3199bdc2d3f19270f05a4c8a7adf8c0853316a922e50
246 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6819

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
  • 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.
  • 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://vipnjl.com/userfiles/files/21197128274.pdf In PDF document text
    • http://strap.sk/uploads/file/netubejupezemejex.pdfIn PDF document text
    • http://vimar.ua/userfiles/files/nisuzufu.pdfIn PDF document text
    • https://yournew.site/wp-content/plugins/super-forms/uploads/php/files/he7636dkll24q8pfguljvnpv8i/16833576414.pdfIn PDF document text
    • https://brigitte-farner.ch/userfiles/files/4893246813.pdfIn PDF document text
    • http://recepti.plovdivweek.com/js/ckfinder/userfiles/files/9672554528.pdfIn PDF document text
    • http://yun2u.com/upload/files/sideb.pdfIn PDF document text
    • https://autosaloncenter.com/uploads/file/gukupexibutizaloterijopuw.pdfIn PDF document text
    • http://kiszelyugyvediiroda.hu/docs/file/23178776977.pdfIn PDF document text
    • https://jewel111.com/kcfinder/upload/files/mojogu.pdfIn PDF document text
    • http://thermogroup.ru/uploads/files/tawujirokugazupisu.pdfIn PDF document text
    • https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/161cb46b8bcedb---27879268334.pdfIn PDF document text
    • http://afi-dwls.de/upload/files/relazoladu.pdfIn PDF document text
    • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161dd6eb01c7b7---pabujipazapamenom.pdfIn PDF document text
    • https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/5924e5f42f9ac6c08535fa70547fb3ec/21257222923.pdfIn PDF document text
    • https://rimsball.com/ckfinder/userfiles/files/99379333093.pdfIn PDF document text
    • https://afmiletisim.com/resimler/files/80020382840.pdfIn PDF document text
    • http://safarang.com/basefile/files/84575927560.pdfIn PDF document text
    • https://speakingparrot.com/upload/ckfinder/files/64295494189.pdfIn PDF document text
    • https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161809b345bcb8---venubamiwugarurinowepazo.pdfIn PDF document text
    • http://ecohouse-lab.com/userfiles/file/fadubugufawumi.pdfIn PDF document text
    • http://thiennhanduong.com/ckeditor/kcfinder/upload/files/tosarabaxukudoxuwif.pdfIn PDF document text
    • http://ambulatorioveterinariovianello.eu/userfiles/files/tukipokadobitubadojuwoko.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/vItLtdF7Pec/uplcv?utm_term=reading+answer+sheet+for+ieltsPDF 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 extracted file (font_00_sfnt_off0004e12c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004e12c.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004e12c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E12C 10764 bytes
SHA-256: f2d7b770b937870bd43ed639ba4a1482030d29539dec6fa005e2e12cfdc7f9a7
font_01_sfnt_off0004f9ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F9AE 16220 bytes
SHA-256: 207eb3b51995adbdef2a766e0364e2c2ee182a7f0f0647c12a4a3807efc046f6
font_02_sfnt_off00050f8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50F8E 25684 bytes
SHA-256: cc8a70b3a7869336993d82b2e9777fa626ed6fb78009cc97dd8f9275b0c4f6f9
font_03_sfnt_off00054616.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54616 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336