Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a1d909734bf12b6…

MALICIOUS

PDF

221.5 KB Created: 2022-03-21 10:12:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-31
MD5: a3b92b67a7fdad68072e8c6c2cf3fbab SHA-1: ceb0132c1109e61d46b89641a4fa088885b71ba7 SHA-256: 5a1d909734bf12b6917987d3ee1b255fb2e4b086cf74032cd896dddcc51afbeb
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7572

Heuristics 7

  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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=faded+mp3+download PDF link annotation
    • http://beamstraffic.ae/amb/userfiles/file/fojevowipogodopupegamoma.pdfIn PDF document text
    • http://studioguagnoni.it/userfiles/files/5560918984.pdfIn PDF document text
    • http://banderlogclub.ru/kcfinder/upload/files/52048381049.pdfIn PDF document text
    • https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/16228f68f6a51e---34721848203.pdfIn PDF document text
    • http://rmgoals.com/userfiles/files/nataworupux.pdfIn PDF document text
    • http://ppic.pl/www/js/kcfinder/upload/files/bonazadobuwikewene.pdfIn PDF document text
    • http://digitalpolicycouncil.org/imagenes/file/11070650099.pdfIn PDF document text
    • http://ximangsongthao.com.vn/app/webroot/uploads/files/pobika.pdfIn PDF document text
    • http://sandsflooring.co.uk/ckfinder/userfiles/files/tavas.pdfIn PDF document text
    • http://clubselectionvoyages.com/images/file/fuwaxanokev.pdfIn PDF document text
    • http://dnt-mayak.ru/content/File/deritutavidefovenenuti.pdfIn PDF document text
    • http://bephoangdung.vn/uploads/ckfinder/files/59560096172.pdfIn PDF document text
    • http://tythb.cn/uploadfile/files/xovebuvonopixetan.pdfIn PDF document text
    • http://mrtowing.ca/Lawyers/userfiles/file/90211586059.pdfIn PDF document text
    • https://www.jaegeraviation.com/ckfinder/userfiles/files/27817033068.pdfIn PDF document text
    • https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/e2e433379118af8f5cd16d47693720fb/43663621166.pdfIn PDF document text
    • https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/16209276127eca---pewur.pdfIn PDF document text
    • http://kedehg.com/ckfinder/userfiles/files/19703743990.pdfIn PDF document text
    • http://security-m.jp/tool/images/file/wigusosadujol.pdfIn PDF document text
    • https://nocleginaplus.pl/uploads/userfiles/files/62959475612.pdfIn PDF document text
    • https://dreptultau.hotnews.md/upload/userfiles/files/84415878471.pdfIn PDF document text
    • https://ww170002.linebot.net/upfile/files/20220220030013.pdfIn PDF document text
    • http://finchamauto.com/pics/besigutav.pdfIn PDF document text
    • https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16211b35f3a249---megavipanedukewusudim.pdfIn PDF document text
    • http://bartuceviri.com/userfiles/file/47068549810.pdfIn PDF document text
    • https://denimder.org/resimler/files/migowamajovodejab.pdfIn PDF document text
    • https://ezsprinting.com/userfiles/file/jowej.pdfIn PDF document text
    • http://www.tempshift.com/app/webroot/files/uploadimagesfile/figelabedalabuzefojoran.pdfIn PDF document text
    • http://nemdanangpho.com/uploads/2022-02-23/images/files/zeluzuvoweto.pdfIn PDF document text
    • http://sevenseahotel.com/uploads/images/files/42747998700.pdfIn PDF document text
    • http://mojahotels.com/ckfinder/userfiles/files/ratatididenidagodolose.pdfIn PDF document text
    • http://rspon.pl/images/wyswig_images/file/niteperaxevolek.pdfIn PDF document text
    • https://emotionalgift.youngzonejewelry.com/ckfinder/userfiles/files/64358435186.pdfIn PDF document text
    • http://ranaghatpchsschool.org/userfiles/file/57805069993.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
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00030107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30107 20872 bytes
SHA-256: acc7a4220a63f309eb4fd1b7032cea9c1b63492c38765504c313698880b7a872
font_01_sfnt_off00033817.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33817 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00034f37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34F37 10328 bytes
SHA-256: 535a5a3578ae6a4302fe6600aa28d1da81b302c2dc2d132d5ae1a7e4735a9c46