Malicious PDF — malware analysis report

Static analysis result for SHA-256 93cf6ccd5e5dd7ab…

MALICIOUS

PDF

378.4 KB Created: 2022-03-11 02:51:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-13
MD5: 4464d0e968bc70bb3968a6f69ff61778 SHA-1: a5dbfa08cdde9f72d3e328164d8ce8a2814e2242 SHA-256: 93cf6ccd5e5dd7ab8a0207c7c9ad67225a57d4f095c8e024d94f308bc1004579
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6197

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 https://norin.co.za/XSRYdR1H?utm_term=sweet+small+baby+pictures PDF link annotation
    • http://strojsteel.cz/webpagebuilder/ckfinder/userfiles/files/76129365965.pdfIn PDF document text
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fb847ea83ee---wiwuzej.pdfIn PDF document text
    • http://chia4kids.ru/ckfinder/userfiles/files/70151507249.pdfIn PDF document text
    • https://coonvalleycc.com/userfiles/file/29040969716.pdfIn PDF document text
    • https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/29ca74c825ffd4ef06b1a0d2baf3bb9d/94840195021.pdfIn PDF document text
    • http://barefoot.pl/userfiles/file/mutegizigafuxawif.pdfIn PDF document text
    • https://rimi.sk/userfiles/file/61529946236.pdfIn PDF document text
    • https://xn--espaoldetalca-lkb.cl/var/www/html/upload/file/kiputerodu.pdfIn PDF document text
    • http://techdiligence.net/assets/kcfinder/upload/files/puvusurimanebisuparite.pdfIn PDF document text
    • https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/80e54b3119206e523be76641fef000e9/besenegitovapumema.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/0hs08c2a4s26bpajtrfavicdv5/36779960884.pdfIn PDF document text
    • https://handball-chac.com/docs/file/wuxatexaxarozapulubumolij.pdfIn PDF document text
    • https://entabe.com/upload/20220205/files/jetifavatoge.pdfIn PDF document text
    • http://amtautotrasporti.com/ckeditor/kcfinder/upload/files/551270424.pdfIn PDF document text
    • https://lionkingbali.com/uploads/file/vomirakofok.pdfIn PDF document text
    • http://www.canadiantreasurer.com/wp-content/plugins/formcraft/file-upload/server/content/files/16215d844ef363---53371820730.pdfIn PDF document text
    • http://www.iccet.org.tr/kcfinder/upload/files/3211348277.pdfIn PDF document text
    • http://ohappy.org/userData/board/file/62227497212.pdfIn PDF document text
    • http://2rent.gr/userfiles/file/7582056973.pdfIn PDF document text
    • http://www.anapharmata.hu/ckfinder/core/connector/php/files/vodewun.pdfIn PDF document text
    • https://archielectronics.com/userfiles/files/posevofafavozej.pdfIn PDF document text
    • http://texinpack.com/uploadfile/file///2022020312234485.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fdd1f9632d5---52925573969.pdfIn PDF document text
    • http://myappartement.de/web/editor/files/28800185736.pdfIn PDF document text
    • http://citadelcaralarms.com/userfiles/file/jiperogutemibiwejidava.pdfIn PDF document text
    • http://lejonhund.com/upload/devagudajimu.pdfIn PDF document text
    • http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/73def2d443f7aaeedbd39e2593b3ab88/15399927269.pdfIn PDF document text
    • http://simonova-zahrada.cz/ckeditor/kcfinder/upload/files/32624892527.pdfIn PDF document text
    • https://al-wesam.com/userfiles/files/28408233611.pdfIn PDF document text
    • http://mijn-nederland.nl/userfiles/file/97887657261.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_off000579be.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000579be.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000579be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x579BE 10824 bytes
SHA-256: afe4e1ae8a0ff763e14d9b77cb895a3156d8f65ddf7f499fe6c93a91ff0de744
font_01_sfnt_off0005928f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5928F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0005a9aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A9AA 18124 bytes
SHA-256: 30926996126ee29c8e92bfae86fb46080f28fd8b351ac01eb075aae2aedf6fde