Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca64a4fd70b1cdc6…

MALICIOUS

PDF

430.6 KB Created: 2022-03-17 13:47:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-06
MD5: 47b0f8b6da438c73b669d5cd05ce1ad7 SHA-1: 629731d62841b1e44dd2bfd7f32d39f59cd34020 SHA-256: ca64a4fd70b1cdc6d24289f9ae454f53dacc691bdb145e584f0a8dbc70c25c7d
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5342

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://www.prakashirrigation.com/uploads/fck/files/gusawazuziwutelisovaxe.pdf In PDF document text
    • https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/1lb89psm2tn0a4lu5omca14dp8/kapufefunetaputivonusoval.pdfIn PDF document text
    • http://fandimnarodaku.cz/upload/file/26889442166.pdfIn PDF document text
    • http://nifaelectronics.com/userfiles/file/4857091792.pdfIn PDF document text
    • http://verkaufs-akademie.com/userfiles/file/selaratoza.pdfIn PDF document text
    • http://wwsm-us.com/files/file/71731650667.pdfIn PDF document text
    • http://eau-msu.ru/ckfinder/userfiles/files/42527263083.pdfIn PDF document text
    • https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/16208ff1cb32cc---donevovimosinu.pdfIn PDF document text
    • http://heilpraxis-pankow.de/wp-content/plugins/formcraft/file-upload/server/content/files/1620518dc9afec---1013867014.pdfIn PDF document text
    • https://mkycc4.com/kycc4.com/userfiles/files/kajaxi.pdfIn PDF document text
    • http://hqshop24.com/userfiles/file/rojunafapimomofozod.pdfIn PDF document text
    • https://remont-bez-zabot.ru/files/file/25118777384.pdfIn PDF document text
    • http://mijinmotor.com/fckeditor/userfiles/file/57858673472.pdfIn PDF document text
    • http://www.deco-interieure.com/userfiles/file/40738110995.pdfIn PDF document text
    • https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/16217f57db4510---95719800139.pdfIn PDF document text
    • http://mtcongnghiepxanh.com/upload/fckimagesfile/kutuvig.pdfIn PDF document text
    • https://vinacoma3.vn/userfiles/file/nebapekuseximumewuxujinok.pdfIn PDF document text
    • https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16229182f8c419---78205709223.pdfIn PDF document text
    • http://ballarioarchitetti.eu/userfiles/files/68293099622.pdfIn PDF document text
    • http://hakemokulkiyafetleri.com/upload/ckfinder/files/28774970422.pdfIn PDF document text
    • http://rentappli.com/tinymce/jscripts/tiny_mce/plugins/phpimage/phpimage/upload/images/file/nexanoxixerowugak.pdfIn PDF document text
    • http://bizwd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16232204c01599---fuxexekida.pdfIn PDF document text
    • https://bgg.pirkitpadangas.lt/ckfinder/userfiles/files/nuxamodus.pdfIn PDF document text
    • http://www.medical-psychology.gr/wp-content/plugins/formcraft/file-upload/server/content/files/162010eb6c7391---sijike.pdfIn PDF document text
    • http://otticagries.it/custom/archivio/files/jafekol.pdfIn PDF document text
    • https://sofupingame.com/calisma2/files/uploads/46952795244.pdfIn PDF document text
    • https://vicareyou.com/userfiles/file/gajunulubozagifare.pdfIn PDF document text
    • http://omeofest.eu/userfiles/files/bolugugosut.pdfIn PDF document text
    • http://aksaaydinlatma.com/img/editor/image/file/tekiluso.pdfIn PDF document text
    • http://deleersnijder-bocaege.be/images/file/36334099179.pdfIn PDF document text
    • http://noithatmyhome.com/img/files/89961403554.pdfIn PDF document text
    • https://mehfermobilsaglik.com/userfiles/file/79096967782.pdfIn PDF document text
    • https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fa0310b9c95---bixeneb.pdfIn PDF document text
    • https://topclassgreenery.nl/images/file/seboxaxokapililanux.pdfIn PDF document text
    • http://piemonteforyou.it/userfiles/file/45828507754.pdfIn PDF document text
    • https://tevav.co.za/XSRYdR1H?utm_term=interstellar+theme+sheet+music+pianoPDF 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_off00064c51.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00064c51.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00064c51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C51 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0006636c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6636C 17604 bytes
SHA-256: c286fa997955353d6502bd8e7b77e528ab61bc695ccad668793e4febe86d4e45
font_02_sfnt_off0006920f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6920F 10688 bytes
SHA-256: 76fdf5b166ed33e37fe2e9e725347b132dbad9159304942b47f4d6e838ddaa87