Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0cc3f72d044a470…

MALICIOUS

PDF

381.0 KB Created: 2022-01-13 17:52:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-02
MD5: 81fa24d523169f21bc6d4ccd53782d99 SHA-1: 5b16d147268ae2fb3b100f133c503ef5a785e98d SHA-256: c0cc3f72d044a470dae330c3245adbf19f8074534874f1cbfa788480feaa0957
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6961

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://fotografoenricogiampieri.it/userfiles/files/48618093864.pdf In PDF document text
    • http://www.investinwielkopolska.pl/application/lib/ckfinder/userfiles/files/60103484504.pdfIn PDF document text
    • http://giraf-tour.com/kcfinder/upload/files/xenabagefovenazosali.pdfIn PDF document text
    • https://jewfri.kr/files/image/files/70842023127.pdfIn PDF document text
    • https://apz-arte.com/ckfinder/userfiles/files/96770820286.pdfIn PDF document text
    • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16178e5ac59fdc---65777050782.pdfIn PDF document text
    • http://naturestuff.nl/siteimages/file/77504282943.pdfIn PDF document text
    • https://tahubunting1.com/contents/files/48852796910.pdfIn PDF document text
    • https://beautifullifeuk.com/wp-content/plugins/super-forms/uploads/php/files/c9e1c9c7e010e4986a9fd6e7c4a4f3a7/feriwipa.pdfIn PDF document text
    • https://i-triada.net/upload/files/bavepekogugifagubatini.pdfIn PDF document text
    • http://rrmkaryacollege.org/rrmkarya/userfiles/file/73877453169.pdfIn PDF document text
    • http://www.thaitofu.com/image/upload/File/98387396406.pdfIn PDF document text
    • https://vimar.ua/userfiles/files/33486264653.pdfIn PDF document text
    • http://tootingtaxi.com/survey/userfiles/files/5182691074.pdfIn PDF document text
    • http://www.upratujemeinak.sk/admin/ckeditor/kcfinder/upload/files/mobofofalima.pdfIn PDF document text
    • http://www.ciesol.com/ckfinder/userfiles/files/rukalirumanenawilexe.pdfIn PDF document text
    • http://jarosi.hu/files/file/71292772316.pdfIn PDF document text
    • http://chiron-ventures.com/chiron/home/img/upload/files/211204214318190943gyede.pdfIn PDF document text
    • https://chrmglobal.com/userfiles/file/supamapevososopupazofetu.pdfIn PDF document text
    • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/1615f36fbed279---76096929521.pdfIn PDF document text
    • http://labradory.pl/file/86838845239.pdfIn PDF document text
    • http://robodit.ru/kcfinder/upload/files/53308485224.pdfIn PDF document text
    • http://100gastro.cz/soubory/files/mofukijirari.pdfIn PDF document text
    • http://la-traverse.biz/kcfinder/upload/files/denowelijepef.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/BcFPVxLj4jw/uplcv?utm_term=aerospace+engineering+handbook+pdfPDF 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_off000582fd.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000582fd.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000582fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x582FD 10968 bytes
SHA-256: 7ab79c1257ae5af15955d2f437abee1939b1a6d6e61350aacfa92cd854fd4a22
font_01_sfnt_off00059bf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59BF9 19248 bytes
SHA-256: e051da95a7a49995cea3bc1f567d2c03dd9d494414b2d9f98a94047b215e9d7f
font_02_sfnt_off0005ce0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CE0A 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336