Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5db6336191d37b3…

MALICIOUS

PDF

321.0 KB Created: 2022-02-01 08:00:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-27
MD5: 014521709735be226aa714623763829f SHA-1: ea4b655973b49063430b102996019620c46a938c SHA-256: c5db6336191d37b30a2e113803689b1d252170441daa5fbcc1bf4e7561e6fa01
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6000

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=chemistry+worksheet+mole+to+mole+calculations PDF link annotation
    • http://budgettranslation.hu/sites/default/files/file/2577745266.pdfIn PDF document text
    • https://pnvvr.ro/userfiles/file/momoxu.pdfIn PDF document text
    • https://dichvuketoansg.com/luutru/files/ziwanegim.pdfIn PDF document text
    • https://resicolor.com/upload/files/rititafopewi.pdfIn PDF document text
    • http://z-sinpro.com/upload/files/kepagosokabinolekumadam.pdfIn PDF document text
    • http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/1617275f82427a---38250490562.pdfIn PDF document text
    • https://aymexco.eu/ckfinder/userfiles/files/11799451574.pdfIn PDF document text
    • https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/dogur61hjnd7757c3dd617se73/jujajorepir.pdfIn PDF document text
    • http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/16138cdf824c36---zogadazuz.pdfIn PDF document text
    • http://wasserentkalkung.at/ckfinder/userfiles/files/76312080147.pdfIn PDF document text
    • https://communicationscharlevoix.com/admin/kcfinder/upload/files/xoxov.pdfIn PDF document text
    • http://ingpiazza.eu/userfiles/files/gefik.pdfIn PDF document text
    • http://dunaisarkanyok.hu/admin/kcfinder/upload/files/wunutozebavavenomata.pdfIn PDF document text
    • http://siamsnail.com/media/userfiles/files/42226078206.pdfIn PDF document text
    • http://orderkai.com/uploads/files/pusiferova.pdfIn PDF document text
    • http://eko-uklid.com/files/file/fomavame.pdfIn PDF document text
    • http://csc020.com/userfiles/file/20211025004902_rza0es.pdfIn PDF document text
    • http://grosfillex.com.br/admin/plugins/ckeditor/kcfinder/upload/files/9847698035.pdfIn PDF document text
    • http://aerotechgroup.ru/img/outer/files/19104837463.pdfIn PDF document text
    • https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/1616d447b48e48---ziwedajekidajuzotejof.pdfIn PDF document text
    • http://sm.ac.th/ckfinder/userfiles/files/3070759629.pdfIn PDF document text
    • http://parkingparts.com/Upfiles/file/moduwowanaf.pdfIn PDF document text
    • http://xn--c1adbeke4asdefy.xn--p1ai/ckfinder/userfiles/files/77535108589.pdfIn PDF document text
    • http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/16185f1ef3857f---35675956571.pdfIn PDF document text
    • http://dienlanhhuubinh.com/upload/files/nedamimexetabamivefiz.pdfIn PDF document text
    • https://rwd1.thadv.com/upload/files/41894284650.pdfIn PDF document text
    • http://sindcomerciarioscs.org.br/adm/kcfinder/upload/files/xerajusubasegezusuzemaj.pdfIn PDF document text
    • http://zuche0551.com/upload/file/85727590863.pdfIn PDF document text
    • https://drterrace.com/london-100.com/userfiles/file/jenateviwonerodaruvufo.pdfIn PDF document text
    • https://twinslock.com/locktactyuma/userfiles/file/tugamogomovofuda.pdfIn PDF document text
    • http://ls12368.com/userfiles/file/liluvok.pdfIn PDF document text
    • https://myshalewell.com/userfiles/file/70363536732.pdfIn PDF document text
    • http://arucax.am/user_images/file/36297598172.pdfIn PDF document text
    • http://atek-ent.com/upload/file/junus.pdfIn PDF document text
    • https://icnj.net/ckeditor/ckfinder/userfiles/files/46505750708.pdfIn PDF document text
    • http://musikpark-live.de/userfiles/file/64820955282.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/161e45a1d3d7fe---kasezikidifijefe.pdfIn PDF document text
    • https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/c28m8eajulufhsgme0cmnm6ldk/17034077956.pdfIn PDF document text
    • http://vagtteam.dk/userfiles/Files/gozopuzasubizovadeja.pdfIn PDF document text
    • http://adice-area.com/pictures/files/webanizifimizibifewif.pdfIn PDF document text
    • https://venefoil.com/ckfinder/userfiles/files/jazapikefopexipene.pdfIn PDF document text
    • https://quangcaowebsite.xemlaco.com/uploads/files/genepaxuwuj.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 PDF document text
    +1 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000495da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x495DA 17444 bytes
SHA-256: 1d3de235cd7fa3f60ef5fc12bfabaa86569ed5a6c31ac04213756c4e0a8ddd68
font_01_sfnt_off0004c3b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C3B3 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0004da59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DA59 10916 bytes
SHA-256: 3174cbfe8e7042d6a10b9b33775cad831c4de1e296f47e9446fa6f4134f3b79c

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