Malicious PDF — malware analysis report

Static analysis result for SHA-256 af23a48d80c14bd5…

MALICIOUS

PDF

239.6 KB Created: 2022-02-28 16:16:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: 7146ec515524c295c64ab35373e41e2f SHA-1: 4b6a076aff038138b76dce3860b784f688dff561 SHA-256: af23a48d80c14bd529132f61c4f8fd255bf181521eaec57253c57242857ff4d6
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7765

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://lovig.co.za/XSRYdR1H?utm_term=diastolic+dysfunction+with+echo+new+guidelines+2016 PDF link annotation
    • https://questymeca.questyme.com/userfiles/file/36930402168.pdfIn PDF document text
    • http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16204ed2257172---tixuzikivuwof.pdfIn PDF document text
    • http://bayanairag.com/uploads/userfiles/files/35027350712.pdfIn PDF document text
    • http://jhdljz.com/userfiles/file/1643850304.pdfIn PDF document text
    • http://profuturis.be/kcfinder/upload/files/21724835877.pdfIn PDF document text
    • https://isleo.com/i_photos/file/lejexabafesopusesizajak.pdfIn PDF document text
    • https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/2691214184f74976c2360fc0f872a6f3/36207028202.pdfIn PDF document text
    • https://dermatologie-francophone.com/userfiles/file/zomifesigefize.pdfIn PDF document text
    • https://hoanghaie.com/Images_upload/files/daxelarupiwana.pdfIn PDF document text
    • https://bi-kiesabbau.de/cmsimple/images/file/besuruwisuxuze.pdfIn PDF document text
    • http://prasiddhakhabar.com/assets/kcfinder/upload/files/34072800250.pdfIn PDF document text
    • https://postelezmasivu-liberec.cz/ckfinder/userfiles/files/foweker.pdfIn PDF document text
    • https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/8ce8972eb74592889328e03b91b97b92/54862882697.pdfIn PDF document text
    • http://dobre-jaja.com/Upload/file/nitutemugovewonataxegak.pdfIn PDF document text
    • http://www.guidanceias.com/assets/files/plugins/kcfinder/upload/files/70559482127.pdfIn PDF document text
    • https://gauravkankariya.com/wp-content/plugins/super-forms/uploads/php/files/77ce217aec551920542702ee784edabd/kazomuzazujug.pdfIn PDF document text
    • https://polymadeniyaglar.com/fckeditor/userfiles/file/12957039957.pdfIn PDF document text
    • https://deycaterers.com/ckfinder/userfiles/files/jafonatodekital.pdfIn PDF document text
    • https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/6e3fffb6c27dc3055631d4589cf1eaaf/silibenumitonaluka.pdfIn PDF document text
    • https://www.beadvised.co.uk/wp-content/plugins/super-forms/uploads/php/files/acce720e375b9c199031fde908d1d05c/tefogikutapudakunizi.pdfIn PDF document text
    • http://bthg.bagwfbm.de/upload/files/19656077581.pdfIn PDF document text
    • https://zooiguana.pl/app/webroot/media/files/84808856956.pdfIn PDF document text
    • http://veitali.com/upload/files/xuwuruzowupirotalojeni.pdfIn PDF document text
    • https://autotoner123.com/home/autotone/public_html/ckeditortest_WORKING/ckfinder/userfiles/files/lomabobedosimiritagajamu.pdfIn PDF document text
    • http://www.tecnobor.com/ckfinder/userfiles/files/lasunivur.pdfIn PDF document text
    • http://sdds.be/userfiles/file/zazisogurulizapawumizi.pdfIn PDF document text
    • http://kuwaited.com/cote_dor_import/admin/ckfinder/userfiles/files/gazapenefemabate.pdfIn PDF document text
    • https://jss-moms.si/upload/File/kuxuveburotoj.pdfIn PDF document text
    • http://casaledellasignora.it/userfiles/files/bubeserixexuba.pdfIn PDF document text
    • http://augustaelectricalwork.com/editorData/file/58219716369.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_off00035309.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35309 11416 bytes
SHA-256: 47e1aa589e1c8132a13b4a1f287cab43129795c66f626098f258b6190310ab5e
font_01_sfnt_off00036deb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36DEB 16372 bytes
SHA-256: 0e9cfe45cfc7ce20cc2fedc19d6f21f52b9e832d844566899c48ee945f1f31eb
font_02_sfnt_off00039875.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39875 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9